If b = 9 cm, c = 7 cm, and m∠A = 66°, what is the approximate area of ABC?
A) 28.78 cm2
B) 12.81 cm2
C) 14.62 cm2
D) 57.55 cm2

Thank you! 

If B = 9 Cm, C = 7 Cm, And MA = 66, What Is The Approximate Area Of ABC?A) 28.78 Cm2B) 12.81 Cm2C) 14.62

Answers

Answer 1
Area of triangle ABC can be found using the formula ¹/₂ × b × c × sin (A)

Substitute b = 9, c = 7, and m∠A = 66° into the formula gives

Area = 9 × 7 × sin 66° = 57.55

ANSWER: D

Related Questions

The figure shows the letter T and four of its transformed images—A, B, C, and D. (See image.)


Which of the four images was formed by a reflection of the letter T?

A) A
B) B
C) C
D) D

Answers

its C
I believe it is

The angles of a quadrilateral are 140, 80, 60, and 80
What type of quadrilateral could it be?

Answers

your answer is a trapezium 

write the answer as a decimal fraction 14/100=? /10+? /100=?

Answers

14.100 or you can do something like that try it in see if it’s right
Final answer:

To write the fraction 14/100 as a decimal fraction, divide the numerator by the denominator. The result is 0.14. Additionally, dividing any number by 100 will result in moving the decimal two places to the left.

Explanation:

To write the fraction 14/100 as a decimal fraction, divide the numerator (14) by the denominator (100). 14 divided by 100 is equal to 0.14.

To find an expression as a decimal fraction, you can first convert the fractions to a decimal by dividing the numerator by the denominator.

For example, 10/100 is equal to 0.10 (10 divided by 100) and ?/100 is equal to ? (dividing any number by 100 will result in moving the decimal two places to the left).

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A frozen yogurt shop weighs customers' cups on a scale to determine how much they will pay for their yogurt. The scale rounds weights to the nearest tenth of an ounce. A weight of 10 ounces or more costs at least $3.

Answers

Final answer:

Leslie can find out which yogurt gives her more by converting pounds to ounces. A 2-pound container is equivalent to 32 ounces, which is more than the total of 30 ounces from five 6-ounce containers.

Explanation:

Comparing Yogurt Quantities

To determine which yogurt option provides more quantity, Leslie needs to convert the weights into the same units. This means converting pounds to ounces, or ounces to pounds. In this case, converting pounds to ounces is more straightforward because we deal with whole numbers.

There are 16 ounces in 1 pound, so a 2-pound container of yogurt is equivalent to 32 ounces (2 x 16 = 32). On the other hand, five 6-ounce containers of yogurt total 30 ounces (5 x 6 = 30). Therefore, the 2-pound container gives more yogurt since 32 ounces is more than 30 ounces.

What number goes on top and how do you solve it.

Answers

So basically, each number is equal to the two numbers below it added together.

See, 7 = 3+4, 8 = 5 +3, etc.

So, the top would be 16 + 17.

16 + 17 = 33

So 33 goes on top.

Set up an equation that can be used to solve the problem. Solve the equation and determine the desired value.
At a boating and sports store, the cost of renting a personal watercraft is $53 per half hour, which includes a 6% sales tax. Determine the cost of a half hour rental before tax.

The equation is ?. The cost of a half hour rental is $? Per half hour.

Type an equation using x as the variable.

Answers


[tex]y = 53x[/tex]
y= 53(1)
[tex]y = 53[/tex]

Calculate the rounding error when 7.69 is rounded to 1 decimal place

Answers

7.69 rounded to the nearest tenth is 7.7

Simplify this algebrtic expression
Z-4/4+8

Answers

 it equals to z/16


brainliest answer plz:)
1/12z + -1/3 is the answer.

What is the sum of the geometric sequence −4, 24, −144, … if there are 7 terms?-159,964 

−26,661

26,661 

159,963 

Answers

The common difference is multiply f(n-1) by -6 and (f)1=-4

mutiply -144 by -6, then 864 by -6, then -5184 by -6. then 31104 by -6 to get -186624

so we have -4, 24, -144, 864, -5184, 31104, -186624 as the seven terms in the geometric sequence, now we just need to add these together and getting the final answer of -159,964

Answ

-159,964

Step-by-step explan

I got it right on the test

A pet store has 9 puppies and 48 kittens.

What is the ratio of kittens to puppies?

Enter your answer in simplest fractional form in the box.

Answers

 ratio of kittens to puppies = 48/9 = 16/3

answer
 ratio of kittens to puppies = 16/3

hope it helps

The ratio of kittens to puppies is [tex]\dfrac{16}{3}[/tex].

Given:

The number of puppies is 9.

The number of kittens is 48.

To find:

The ratio of kittens to puppies.

Explanation:

The ratio of kittens to puppies is the fraction of the number of kittens and the number of puppies. So,

[tex]\text{Ratio}=\dfrac{\text{Number of kittens}}{\text{Number of puppies}}[/tex]

[tex]\text{Ratio}=\dfrac{48}{9}[/tex]

[tex]\text{Ratio}=\dfrac{16}{3}[/tex]

Therefore, the ratio of kittens to puppies is [tex]\dfrac{16}{3}[/tex].

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5x + 6y = 18 and 18x -15y =36

Answers

Solution : {x,y,z} = {-3,-2,-1}  System of Linear Equations entered :  [1] x + 6y + 3z = -18   [2] -x + 6y - 3z = -6   [3] 5x - 6y + 3z = -6 Solve by Substitution :

// Solve equation [1] for the variable  x  
 

[1] x = -6y - 3z - 18

// Plug this in for variable  x  in equation [2]

  [2] -(-6y-3z-18) + 6y - 3z = -6   [2] 12y = -24

// Plug this in for variable  x  in equation [3]

  [3] 5•(-6y-3z-18) - 6y + 3z = -6   [3] - 36y - 12z = 84

// Solve equation [2] for the variable  y  

  [2] 12y = - 24    [2] y = - 2 

// Plug this in for variable  y  in equation [3]

  [3] - 36•(-2) - 12z = 84   [3] - 12z = 12

// Solve equation [3] for the variable  z  

  [3] 12z = - 12    [3] z = - 1 

// By now we know this much :

  x = -6y-3z-18   y = -2   z = -1

// Use the  y  and  z  values to solve for  x  
  x = -6(-2)-3(-1)-18 = -3 

Solution : {x,y,z} = {-3,-2,-1}  Processing ends successfully

Mr. Smith spent 6 hours hiking along a trail and back. He walked out at the rate of 4 miles per hour and walked back at the rate of 2 miles per hour. How long did it take Mr. Smith to get to the end of the trial?

Answers

To get to the end of the trail it would take 2 hours because the walking back hours would be double the walking out rate, but it would still have to equal 6 hours. So walking out would be 2 hours and walking back would be 4 hours which makes the trail 8 miles long.

Linear equations are algebraic equations which represents the value of variables. These equations have unique solutions or sometimes there may be a number of solutions. Linear equation may contain n number of variables.

Given:  

              [tex]\begin{aligned}\rm\:Total\: time\: taken\: by \:MR. Smith \: &= 6 hours\\\\\rm\:Speed\:while\:going &= 4 \:miles\:per\:hour.\\\\\rm\:Speed \:while\:coming\:back &= 2\: miles\:per \:hour \end[/tex]

Calculations

Let time taken to walk out be [tex]x[/tex] and time taken to walk back be [tex]2x[/tex]. The total time taken will be the summation of [tex]x[/tex] and [tex]2x[/tex] .

                                  [tex]\begin{aligned}\rm\:Total\:time&= 6\:hours\\\\x+2x&= 6\: hours\\\\3x&=6\:hours\end[/tex]

Continuing further,

                                               [tex]x=\dfrac{6}{3}\:hours \\\\x=2\:hours[/tex]

Therefore it can be said that the time taken by Mr. Smith to reach the end of the trial is 2 hours.

It is also observed that the speed while coming back was half of the speed of walking out. So it can be said that the time taken to walk back was twice the time Mr. Smith took to reach the end of the trail.

Learn more about linear equation here:

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A dolphin dove 31 meters below the surface of the water to reach a fish. It traveled 16% of the total distance every second.

What was the depth of the dolphin after 3 seconds?
A. –19.84 meters
B. –4.96 meters
C. –7.44 meters
D. –14.88 meters

Answers

D. -14.88 meters

31(.16)=4.96

4.96(3)=14.88

Give the other person Brainliest, please...

PS: I know this question was asked back in 2017, but just want the other person to get brainliest :D

Noah currently has an account balance of $2,976.45. He opened the account 11 years ago with a deposit of $1,963.45. If the interest compounds quarterly, what is the interest rate on the account?

Answers

What we know:
Acct. balance A (11)= $2,976.45
Pricipal=$1,963.45
Compounded (n)=quarterly (4)
rate=r
Compound interest formula: A (t)=p (1+r/n)^nt

What we need toi find:
If the interest compounds quarterly, what is the interest rate on the account? Find r.
A (t)=p (1+r/n)^nt
2976.45=1963.45 (1+r/4)^(4×11)
2976.45=1963.45 (1+r/4)^44
2976.45/1963.45=1963.45/1963.45 (1+r/4)^44
1.5159=(1+r/4)^44
(1.5159)^(1/44)=((1+r/4)^44)^(1/44)

1.0095=1+r/4
1.0095-1=1-1+r/4
.0095=r/4
.0095(4)=r/4 (4)
.038=r

Rate = 3.8%


Answer:

The interest rate is 3.79% or 3.8%

Step-by-step explanation:

The formula to find how much money A we have at the end of t years  if we start with a principal or  amount of money P today and the interest is compounded n times in the years is:

A=P(1+ r/n)^(nt)   (1)

Here A = $2,976.45 the final amount

t = 11 years

P =  $1,963.45.

and n = 4 because the interest is compounded quarterly or 4 times in the year.

We the need to simplify  the interest rate r in (1) so:

A=P(1+ r/n)^(nt)   (1)

A/P = (1+ r/n)^(nt)

(A/P)^(1/nt) = (1+ r/n)

(A/P)^(1/nt) - 1  =  r/n

((A/P)^(1/nt) - 1  ) * n =  r

r = ((A/P)^(1/nt) - 1  ) * n

We replace values and solve doing parenthesis exponents first

r = ((2,976.45/1,963.45.)^(1/(4*11)) - 1  ) * 4

r= ((1.51^(1/44)) -1)*4

((1.51^(1/44)) -1)*4

r= (1.009499443  - 1)*4

r= 0.009499443  *4 = 0.037997773

That expressed in percentage multiplying by 100 is 3.79% or 3.8% interest

A farmer had 1,000 horses and cows. After selling some of them, he had 550 horses and 350 cows left. How many horses and cows did he sell altogether?

Answers

the farmer had sold 100 horses and cows

Match the equation with its corresponding solution for x. 4x + 7 = 35

Answers

Are you wanting to solve for x? If so:
4x + 7 = 35
We want to isolate the variable, so subtract 7 from both sides.  You will get:
4x = 28
Now, divide each side by 4 to get X by alone. This will give you:
x = 7
I hope this helped.

If 3/4 of the sections on a different spinner have stripes and there are 24 sections how many sections have stripes

Answers

3/4 of 24 = 3/4 times 24 which is 18 ?
3 / 4 = .75

24 x .75 = 18

Your answer is 18z

Dr. McDonald thinks that his group of earth science students is particularly special (in a good way), and he is interested in knowing if their class average falls within the boundaries of the average score for the larger group of students who have taken earth science over the past 20 years. Because he has kept good records, he knows the means and standard deviations for both his group of 36 students and the larger group of 1,000 past enrollees. Here are the data he has, and the values for which you will need to compute the z-test

Answers

I don't know what witch is this

math question down below

Answers

Your answer is -0.364 

Need the complete Answer of this problemssssss.

Answers

1. The price is $50.
The discount is 10% of $50.
10% of $50 = 10% * $50 = 0.10 * $50 = $5
The discount is $5
Now we subtract the actual discount to find the final price.
$50 - $5 = $45
The selling price is $45

2. Use the same method as for problem 1. First find the amount of discount by multiplying the percent by the price. Then subtract the amount of discount from the original price.
The price is $500.
The discount is 20% of $500.
20% of $500 = 20% * $500 = 0.20 * $500 = $100
The discount is $100
Now we subtract the actual discount to find the final price.
$500 - $100 = $400
The selling price is $400

3. The price is $80.
The discount is 5% of $80.
5% of $80 = 5% * $80 = 0.05 * $80 = $4
The discount is $4
Now we subtract the actual discount to find the final price.
$80 - $4 = $76
The selling price is $76

I did the first three problems for you.
Now you can try the last two.
Write in the comments what you get for the discount amounts and selling prices of problems 4 and 5, and I'll let you know if you're correct.

Write the number 0.21212121.. as a fraction let x=

Answers

There are 2 repeating decimals, so you will need a 1 followed by 2 zeros which is 100. You'll use 100 soon to multiply an equation.

Let's call the decimal number x.

Write   

        x =     0.212121...

Then multiply the equation above by 100, and write it above that equation.
You end up with

    100x = 21.212121...
          x =   0.212121...

Now set it up as a subtraction, and subtract the second equation from the first equation:

    100x = 21.212121...
          x =   0.212121...
- ----------------------------
      99x = 21

Now solve for x. Divide both sides by 3:

33x = 7

Divide both sides by 33:

x = 7/33

Since x = 0.212121..., an d x = 7/33, that means 0.212121... must equal 7/33.

Answer: the fraction is 7/33

We know that numbers with periodic decimals (there are decimals that repeat infinitely) can be written as a fraction of two integer numbers.

Here we have the number:

0.212121...

Where the decimals "21" are repeating decimals, and we want to write this as a fraction.

And we will find that the fraction form of this number is: 21/99

To find it, first let's define:

x = 0.212121...

Now we need to multiply this by 10^n, where n is the number of repeating decimals, here we have two (2 and 1) then n = 2.

Now we need to multiply:

x×10^2 = x×100 = (0.2121...)×100 = 21.212121...

Now we can subtract the original number so we get:

x×100 - x = x×99 = 21.212121... - 0.212121... = 21

Then we just found that:

x×99 = 21

Solving for x, we get:

x = 21/99 = 0.212121...

Then the fraction that we want to find is 21/99

If you want to learn more you can read:

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In the diagram, m CD = 128° and m DA = 76°. What is m∠ABC?

Answers

Angle ABC is an inscribed angle.

Inscribed angle = 1/2 * Intercepted Arc

The intercepted arc is arc CD + arc DA, which would be 128 + 76 = 204

m<ABC = 1/2(204)

m<ABC = 102 degrees

You answer is D) 102

Answer: The value of m∠ABC is 102° .

Step-by-step explanation:

Since we have given that

m CD = 128°

m DA = 76°

We need to find the m∠ABC, Angle subtended at the center is half of the sum of the measure of the arc intercepted by it.

[tex]\frac{m\ CD+m\ DA}{2}=\angle ABC\\\\\frac{128^\circ+76^\circ}{2}=\angle ABC\\\\102^\circ=m\angle ABC[/tex]

The value of m∠ABC is 102° .

the tempura temperature halfway to the sun from mercury is aproxamently 1,800 Celsius and scientist theorize that it may be 26,000 times hotter at the center of the sun. aproxamently how hot is the center of the sun

Answers

Final answer:

Using the given approximation, the temperature at the Sun's core would be 46,800,000 degrees Celsius. However, scientific data indicates that the accurate temperature is 15 million degrees Celsius, due to nuclear fusion processes occurring at the core.

Explanation:

If the temperature halfway to the Sun from Mercury is approximately 1,800 Celsius and scientists theorize that it may be 26,000 times hotter at the center of the Sun, we can calculate the temperature at the center by multiplying 1,800 Celsius by 26,000. This gives us an estimated temperature of the sun's core at 46,800,000 degrees Celsius. However, according to scientific data, the temperature near the center of the Sun is thought to be around 15 million degrees Celsius (1.5 ×[tex]10^7[/tex] °C) or kelvin, which is much more accurate than the extrapolation from the original question.

Mercury's proximity to the Sun accounts for its high surface temperatures, but without a significant atmosphere, the temperatures fluctuate dramatically between day and night. At the Sun's core, however, the temperatures reach extremes due to nuclear fusion, which releases vast amounts of energy and maintains the central temperature around 15 million degrees Celsius.

find the new amount given the original amount and the percent of change. 29,000; 4% decrease

Answers

Answer: 27,840
If the number 29,000 is being reduced by 4%; in other words, 96% of 29,000, then the answer is 27,840. This was found by multiply 29,000 by 0.96 to represent 96%, or a 4% decrease.

If d = 20 and C = 20π
If d = 26 and C = 26π
If r = 12 and C = π
If r = 18 and C = 14π
If r = 6 and C = 12π
If r = 50 and C = 100π

^Matches w
then d = 1
then d = 100
then d = 12
then d = 14
then r = 10
then r = 13

What goes w what!

Answers

If d = 20 and C = 20π, then r = 10.
If d = 26 and C = 26π, then r = 13.
If r = 1/2 and C = π, then d = 1.
If r = 7 and C = 14π, then d = 14.
If r = 6 and C = 12π, then d = 12.
If r = 50 and C = 100π, then d = 100.
*Note, r= 1/2×d or d=2×r

A baker used 4 cups of flour to make 5 batches of brownies. He used_of a cup of flour to make 1 batch of brownies

Answers

(I dont know if this is the way your teacher told you how solve the problem but I'm gonna try it anyway)

First of all, Let x = the mystery amount of flour

To create my equation, I put cups of flour over the amount batches in a formation, kind of like a fraction. 

  cups
-----------  
batches 

Next, I fill in the values. 

 cups             4
-----------  = ---------  
batches        5

The 4/5 represents the first ratio of flour/batches. 

 cups             4               x
-----------  = ---------   = ---------
batches        5                1

Since we do not know that amount of flour it took to make one batch, we put x in it's place.

Now it's time to cross multiply. It's exactly like it sounds! Multiply diagonally. 

Multiply 5 and 'x'. Multiply 4 and 1. 

You end up with a eqaution that looks like:

5x = 4

As you would for any solve-by-x equation, divide the five on both sides. 

5x= 4
-       -
5     5

4/5 = Four-Fifths

5/5 cancels itself out and poofs into thin air. 

You end with x = 4/5

This is the answer. 

The baker used 4/5 cups of flour to make 1 batch of brownies :)



Benjamin solved the equation 3+/2=10 and justified each step as shown. Identify Benjamin’s error and fix his mistake.
3+x/2=10 GIVEN
x/2=7 MULTIPLICATION PROPERTY OF EQUALITY
x=14 SUBTRACTION PROPERTY OF EQUALITY

Answers

How to solve the equation properly:

3 + x / 2 = 10

Multiply 2 on both sides.

3 + x = 20

Subtract 3 from both sides.

x = 17.

What he did wrong:

He subtracted the three on both sides before he multiplied the two. This will make him get the incorrect answer because he did it in the wrong order.

Hope this helps!


is 5 factor of the number 38 yes or no

Answers

no it is not. 5 can go into 35 and 40, but not 38
The factors of the number 38 are 1, 2, 19 and 38. For any positive number, the number 1 and the number itself are factors, so 1 and 38 are inherent factors. Additional numbers that divide 38 evenly are 2 and 19.

The formula f= n/4 + 37 estimates the temperature F in degrees Fahrenheit when crickets chirp n times per minute. Use the formula to estimate the
temperature when n = 75 chirps/min. Round to the nearest whole number, if necessary.

a) 52mc009-4.jpg
b) 53mc009-3.jpg
c) 56mc009-5.jpg
d)58mc009-2.jpg

Answers

the answer is C when you plug in 75 for n you get 75/4+37 which equals 55.75 when rounded to the nearest whole number it is 56 which is C. Hope that helps

Answer:

56°F

Step-by-step explanation:

Given : The formula[tex]F = \frac{n}{4} + 37[/tex]estimates the temperature F in degrees Fahrenheit when crickets chirp n times per minute.

To Find: Use the formula to estimate the  temperature when n = 75 chirps/min.

Solution:

Formula : [tex]F = \frac{n}{4} + 37[/tex]

Where  F in degrees Fahrenheit when crickets chirp n times per minute.

Now we are supposed to substitute n = 75

So,  [tex]F = \frac{75}{4} + 37[/tex]

[tex]F = 55.75[/tex]

Hence  the  temperature is 56°F when n = 75 chirps/min.

I need help Simplifying!!!!!!!!!!
2x−(x+6)

Answers

To simplify this, we first need to distribute the negative sign to the (x+6). It's easier to see if we rewrite the negative as -1:
[tex]2x+(-1)(x+6)=2x+(-1)*x+(-1)*6=2x-x-6[/tex]

Now combine like terms:
[tex]2x-x-6=x-6[/tex]
2x - (x + 6)

The first step is to multiply every term inside the parentheses by -1.

2x - x - 6

Now combine like terms.

x - 6

Done.
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