Answer:
A
Step-by-step explanation:
THe perimeter is the sum of all the sides.
A triangle has 3 sides and we sum up the expressions to find the expression for perimeter.
Lets do this:
[tex](6.2p + 4.5q)+(3.4p-0.7r)+(2.9r-4.1q)\\=(6.2p+3.4p)+(4.5q-4.1q)+(-0.7r+2.9r)\\=9.6p+0.4q+2.2r[/tex]
We have added "p"s and "q"s and "r"s, together.
THe answer is Option A
Which fraction can be expressed as a terminating decimal? 1/9, 3/11, 5/8, 2/3
Answer:
2/3 can be expressed as 0.6666666666666666666666 repeating
Step-by-step explanation:
Answer:
1/3 there is no 2/3
Step-by-step explanation:
need help with 3x48 and 48x3
Answer:
144
Step-by-step explanation:
48×3= 144
48×3=144
to make it easier just add the number being multiplied the amount of times its being multiplied.
48+48+48=144
Both 3x48 and 48x3 yield the same result, which is 144, because multiplication is commutative.
Both expressions involve multiplying the numbers 3 and 48.
In the first expression, 3x48 means you're multiplying 3 by 48. This gives you 144, because 3 times 48 equals 144.
In the second expression, 48x3 means you're multiplying 48 by 3. This also gives you 144, because multiplication is commutative, which means the order of the numbers doesn't change the result. So, whether you multiply 3 by 48 or 48 by 3, you'll always get the same answer, which is 144.
So, to summarize:
3x48 = 144
48x3 = 144
Both expressions result in the same value of 144.
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Look at the image used by the author of "Heads Up on
Sports Safety
Look at the image used by the author of "Heads Up on
Sports Safety
The author most likely included this image from an outside
resource to show how
stadiums have changed.
photographic technology has changed.
football uniforms have changed.
football strategies have changed.
The author most likely included this image to show how football uniforms have changed.
Why the image is added?
The thesis of "Heads Up on Sports Safety" is, as the name implies, sports safety.
The image shows some kids, all of them with their correspondent football equipment (protective equipment).
So, what is being presented in the image, is in some way how the "football uniforms have changed." In a way in which the safety of the players is a priority.
So that is the correct option.
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slope:
y-intercept:
equation:
We can conclude -
m = -A/B → unit rate of change of [y] with respect to [x].c = - C/A → the point where the graph cuts the [y] axis.Equation → y = mx + cWhat is the general equation of a Straight line?The general equation of a straight line is -
[y] = [m]x + [c]
where -
[m] is slope of line which tells the unit rate of change of [y] with respect to [x].
[c] is the y - intercept i.e. the point where the graph cuts the [y] axis.
y = mx also represents direct proportionality. We can write [m] as -
m = y/x
OR
y₁/x₁ = y₂/x₂
Given is a straight line.
The equation of a straight line is written as -
Ax + By + C = 0
By = - Ax - C
y = (- A/B)x - (C/A)
Now, from this we get -
m = -A/B {Slope}
c = - C/A {y - intercept}
So, the equation will be -
y = mx + c
We can also calculate slope by -
m = (y₂ - y₁)/(x₂ - x₁)
Therefore, we can write -
m = -A/B → unit rate of change of [y] with respect to [x].
c = - C/A → the point where the graph cuts the [y] axis.
Equation → y = mx + c
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a pair of running shoes costs $37 less than twice the cost of a pair of basketball sneakers. The sneakers cost $48.50. How much do the running shoes cost?
Answer:
11.5
Step-by-step explanation:
Sneakers = 48.50
Expression for cost of running shoes = 2(sneakers) - 37
Plug in value of sneakers and solve:
2(48.50) - 37
97 - 37
$60
The running shoes cost $60.
Hope this helps!! :)
what’s the relationship? linear, exponential, or neither?
Answer:
This relationship is linear
Step-by-step explanation:
As x goes up by 5, y goes up 3. Since this is a constant rate, this relationship is, therefore, linear
WHICH SENTENCE IDENTIFIES THE Y INTERCEPT AND ORDERED PAIR OF THE POINT ON THE GRAPH
1. Find the x-intercept of the line: 5x - y = 10
2. Find the y-intercept of the line: 9x + 3y = -18
3. What are the x- and y- intercepts of the graph of 6x - 4y = -12
Final answer:
The x-intercept of the line 5x - y = 10 is (2, 0), the y-intercept of the line 9x + 3y = -18 is (0, -6), and the equation 6x - 4y = -12 has an x-intercept at (-2, 0) and a y-intercept at (0, 3).
Explanation:
To find the x-intercept of a line, we set the value of y to zero and solve for x. For the equation 5x - y = 10, we set y to 0:
5x - (0) = 10
5x = 10
x = 2
The x-intercept is therefore the point (2, 0).
To find the y-intercept of a line, we set the value of x to zero and solve for y. For the equation 9x + 3y = -18, we set x to 0:
(0) + 3y = -18
3y = -18
y = -6
The y-intercept is therefore the point (0, -6).
For the equation 6x - 4y = -12, the x-intercept and y-intercept can be found similarly. Let's start with the x-intercept. Set y to 0:
6x - (0) = -12
6x = -12
x = -2
The x-intercept is the point (-2, 0). Now, for the y-intercept, we set x to 0:
(0) - 4y = -12
-4y = -12
y = 3
The y-intercept is the point (0, 3). Thus, for 6x - 4y = -12, the intercepts are x = -2 and y = 3.
Sales tax in Pennsylvania is 6%. Carlos bought a mountain bike that costs $125.50 before tax. What was the cost of the new bike including sales tax?
Answer:
$878.50
Step-by-step explanation:
it's asking about new bike cost including sales tax.
between the time Iko woke up and lunchtime, the temperature rose by 11°. Then by the time he went to bed, the temperature dropped by 14 °. Write an addition expression for the temperature relative to when Iko woke up.
Answer:
x + (11) + (-14) [x being temperature when Iko woke up]
Step-by-step explanation:
Let the temperature be "x" when Iko woke up
Then,
Temperature ROSE 11° in lunch
The temp in lunch was: x + 11
Then the temperature DROPPED 14° when he went to bed, relative to lunch temperature, so we can say:
(x + 11) - 14
So, the final temperature that end of day was:
x + 11 - 14
As addition expression, it will be:
x + (11) + (-14)
0.009 times 0.07
show how you got the answer
Answer:
63/100000 or 0.000063
Step-by-step explanation:
0.009*0.07 is the same as 9/1000*7/100 which is 63/100000 when you multiply numerator with numerator and denominator with denominator.
So your answer is 63/100000 or 0.000063
In circle D, angle ADC measures (7x + 2)°. Arc AC measures (8x - 8)°. Circle D is shown. Points A, B, and C are on the circle. Point C is on the opposite side of points A and C. LInes are drawn from point A to point B, from point B to point C, from point C to point D, and from point D to point A. Angle A D C measures (7 x + 2) degrees. Arc A C measures (8 x minus 8) degrees. What is the measure of Angle A B C ? 36° 43° 72° 144°
Answer:
In circle D, angle ADC measures (7x + 2)°. Arc AC measures (8x - 8)°.
Circle D is shown. Points A, B, and C are on the circle. Point C is on the opposite side of points A and C. LInes are drawn from point A to point B, from point B to point C, from point C to point D, and from point D to point A. Angle A D C measures (7 x + 2) degrees. Arc A C measures (8 x minus 8) degrees.
What is the measure of Angle A B C ?
36° *****
43°
72°
144°
Step-by-step explanation:
its 36°
Applying the central angle theorem, the measure of angle ABC is: a. 36°
What is the Central Angle Theorem?The central angle theorem states that the angle measure of a central angle equals the measure of the intercepted arc.Inscribed angle = half the intercepted arc.Given:
m∠ADC = (7x + 2)° (central angle)
measure of intercepted arc AC = (8x - 8)°
Therefore:
(7x + 2)° = (8x - 8)°
Solve for x7x + 2 = 8x - 8
8 + 2 = 8x - 7x
10 = x
x = 10
Thus:
m∠ABC is an inscribed angle = half of measure of intercepted arc AC
Therefore:m∠ABC = 1/2(8x - 8)°
Plug in the value of xm∠ABC = 1/2[8(10) - 8]
m∠ABC = 36°
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What is the angle of a triangle if one angle is 68 and the other is 52
Answer:
The last angle is 60 degrees
Step-by-step explanation:
All triangles add up to 180 degrees
Step 1: Make an equation
What is the angle of a triangle if one angle is 68 and the other is 52.
68 + 52 + x = 180
Step 2: Combine like terms
68 + 52 + x = 180
120 + x = 180
Step 3: Subtract 120 from both sides
120 + x - 120 = 180 - 120
x = 60
Answer: The last angle is 60 degrees
The sum of the angles in a triangle will be equal to 180°.
68 + 52 = 120°
180 - 120 = 60° (This is the 3rd angle)
Best of Luck!
Use rounding to estimate the product.
8.24 × 5.88
40
45
48
85
Answer:
Its 48.4512 and rounded it is 48 :)
If I have 30 vegetables and 2 of the vegetables are beans. What percentage of vegetables are beans
Answer:
6%
Step-by-step explanation:
.02 times 30
.6=6%
The circumference of a circular frisbee is 20 centimeters. If
we multiply the radius of the frisbee by 5, what will be the
circumference of the new frisbee?
OA) 981 cm
OB) 100 cm
OC) 1451 cm
OD 2007 cm
Answer:
100cm
Step-by-step explanation:
since the circumference is 20cm and formula for finding a circumference of a circle is c=2(pi)r, where r is radius and pi is constant value which is equivalent to 22/7. so the radius of 20cm circumference is 3.1847 by using this eqn c/2(pi)=r. now the calculated radius will b multiply by 5 to get 15.92cm which is put in cirumference formula i.e. c=2(pi)r we get 100cm circumference.
Which statement show equivalent expressions? PLEASE HELP ME ASAP
A 5(x−2)=5x−3
B 3(x+6)+x=4x+9
C 8(2x+3)=16x+24
D 4(5x+2)−6=20x+14
Answer:
c.
Step-by-step explanation:
8(2x+3) = 16x + 24
8(2x) + 8(3) = 16x + 24
Answer:
C)
Step-by-step explanation:
C) 8(2x+3)=8*2x+8*3=16x+24 true
Which point approximates the square root of 15
Option B:
Point B approximates [tex]\sqrt{15}[/tex].
Solution:
Let us first find the approximate value of [tex]\sqrt{15}[/tex].
[tex]\sqrt{15}=3.87[/tex]
In the number line 3.87 lies between 3 and 4.
So that [tex]\sqrt{15}[/tex] lies between 3 and 4.
Look at the given number line.
Point B lies between 2 and 4.
Hence point B approximates [tex]\sqrt{15}[/tex].
Option B is the correct answer.
Jake swims a distance from one end of a 50 meter pool to the other end in 25 seconds. What is his average speed?
Answer:
2 meters/ second
Step-by-step explanation:
Speed is equal to distance divided by time
Speed = 50 meters / 25 seconds
= 2 meters/ second
Which expressions are equivalent to
2 In a + 2 In b - In a?
Check all that apply.
Answer:
ln ab^2
ln a + 2 ln b
ln a^2 + ln b^2 - ln a.
Step-by-step explanation:
2 ln a + 2 ln b - ln a
= ln a^2 + ln b^2 - ln a
= ln (a^2/a) + ln b^2
= ln a + 2 ln b
= ln a + ln b^2
= ln ab^2.
Yo sup??
2lna+2lnb-lna
=lna²+lnb²-lna
=lna²b²/a
=lnab²
correct answer is option E
Hope this helps
find x and y?????????
Answer:
[tex]a)\\x=12\\y=12\sqrt{3}[/tex]
Step-by-step explanation:
The angle without a numerical value is 30°
Using the 30-60-90 rule:
x = a24 = 2ay = [tex]a\sqrt{2}[/tex]Since we know that 2a is the side with length 24
[tex]2a=24\\a=24/2\\a=12\\x=12[/tex]
To find y
[tex]y=a\sqrt{3}\\a=12\\y=12\sqrt{3}\\[/tex]
5x - 1= 3х + 9
Find x
Answer:
X=5
Step-by-step explanation:
[tex]5x - 1 = 3x + 9 \\ 5x - 3x = 9 + 1 \\ 2x = 10 \\ x = 5[/tex]
5x-1=3x+9
collect like terms
5x-3x=9+1
2x=10
divide both sides by 2
x=5
You are riding your bicycle. It takes you 9min to go 2.5 mi. If you continue traveling at the same rate, how long will it take you to go 7 mi?
Answer:
Step-by-step explanation:
To find out how many miles you are going per minute you would find the unit rate. The unit rate is 3.6
You are going at 3.6 minutes per mile.
So you would multiply 3.6 by 7 to get 25.2 minutes.
The manufacturer of cell phones spends $320 to make each cell phone and sells them for 440 . The manufacturer also has fixed costs each month of $11400 .
Answer:
x=95
Step-by-step explanation:
320x+11400=440x
320*95+11400=440*95
30,400+11,400=41,800
41,800=41,800
The manufacturer needs to sell approximately 95 cell phones to cover its fixed costs of $11,400 per month. The profit per month depends on the number of units sold, with a contribution margin of $120 per unit after covering variable costs.
To analyze the manufacturer's costs and profitability, we can break down the information provided:Cost to Make Each Cell Phone: $320 per unitSelling Price of Each Cell Phone: $440 per unitFixed Costs: $11,400 per monthFirst, let's calculate the variable cost per unit, which is the cost to make each cell phone:Variable Cost per Unit = Cost to Make Each Cell Phone = $320Now, we can calculate the contribution margin per unit, which is the amount each phone contributes to covering fixed costs and generating profit:Contribution Margin per Unit = Selling Price - Variable Cost per UnitContribution Margin per Unit = $440 - $320 = $120Next, calculate the break-even point in units, which is the number of units the manufacturer needs to sell to cover its fixed costs:Break-Even Point (in units) = Fixed Costs / Contribution Margin per UnitBreak-Even Point (in units) = $11,400 / $120 ≈ 95 unitsSo, the manufacturer needs to sell approximately 95 cell phones to cover its fixed costs.To determine the profit, we can calculate the profit per month after covering fixed costs:Profit per Month = (Selling Price - Variable Cost per Unit) * Number of Units Sold - Fixed CostsSuppose the manufacturer sells "X" cell phones per month. Then:Profit per Month = ($440 - $320) * X - $11,400Now, you can calculate the profit for any given number of cell phones sold.For more questions on profit -
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If gasoline costs $47.86 for 12.5 gallons of gasoline, how much does it cost for 8 gallons?
Round your answer to the nearest cent.
Answer:
8 gallons of gasoline costs $30.63.
Step-by-step explanation:
Set up a proportion to solve for x, or the cost of 8 gallons of gasoline. The $47.86 goes on top of the first ratio, and 12.5 goes on top of the second. This is because the $47.86 is the cost of the 12.5 gallons of gasoline. Next, put x on the bottom of the first ratio and 8 on the bottom of the second ratio. This is because the amount of money you are trying to find, x, is the cost of the 8 gallons of gasoline. The proportion should look like this: [tex]\frac{47.86}{x} = \frac{12.5}{8}[/tex]
To solve the proportion, use cross multiplication. To do that, multiply 8 by 47.86 to get 382.88. Then, divide 382.88 by 12.5. The answer is 30.6304, so round to the nearest cent to get a total of $30.63.
I hope this helps! ☺
Which best describes the graphs of the line that passes through (−12, 15) and (4, −5), and the line that passes through (−8, −9) and (16, 21)?
A)
They are parallel lines.
B)
They are vertical lines.
C)
They are perpendicular lines.
D)
They are intersecting lines.
Answer:
C) They are perpendicular lines.
Step-by-step explanation:
We first need to find the slope of the graph of the lines passing through these points using:
[tex]m = \frac{y_2-y_1}{x_2-x_1} [/tex]
The slope of the line that passes through (−12, 15) and (4, −5) is
[tex] m_{1} = \frac{ - 5 - 15}{4 - - 12} [/tex]
[tex]m_{1} = \frac{ - 20}{16} = - \frac{5}{4} [/tex]
The slope of the line going through (−8, −9) and (16, 21) is
[tex] m_{2} = \frac{21 - - 9}{16 - - 8} [/tex]
[tex] m_{2} = \frac{21 + 9}{16 + 8} [/tex]
[tex]m_{2} = \frac{30}{24} = \frac{5}{4} [/tex]
The product of the two slopes is
[tex]m_{1} \times m_{2} = - \frac{4}{5} \times \frac{5}{4} = - 1[/tex]
Since
[tex]m_{1} \times m_{2} = - 1[/tex]
the two lines are perpendicular.
Answer:D) They are intersecting lines.
Step-by-step explanation: that other answer was wrong .
Strawberries cost $2.14 per pound and Annie purchased 1.3 pounds. How much did she pay for strawberries if her answer is rounded to the nearest cent?
A. $2.78
B. $2.79
C. $27.82
D. $27.90
Answer:
A. $2.78
Step-by-step explanation:
You would multiply the cost per pound, $2.14, by the amount of pounds bought, 1.3. Then round to the nearest hundredth.
2.14 x 1.3 = 2.782
2.782 rounded to the nearest hundredth is $2.78
Answer:
I think it is 2.78 sorry if it’s not
Step-by-step explanation:
[]: what is 20056x345
Answer:
6,919,320
Step-by-step explanation:
20056 * 345
6919320
Answer: 6,919,320
Answer:
6,919,320.00
Step-by-step explanation:
PLS HELP
What is the volume of the right rectangular prism shown?
A. 8 un3
B. 20 un3
C. 24 un3
D. 12 un3
Answer:
12 UN 3
Step-by-step explanation:
ok i hope this is right answer
Find the distance from the point (3,2) to the line 2y + 3x = 5. Round your answer to the nearest tenth.
Answer:
(8/13)√13 ≈ 2.2
Step-by-step explanation:
The distance from point (x, y) to line ax+by=c can be found using the formula ...
d = |ax +by -c|/√(a²+b²)
Filling in the given values, we find the distance to be
d = |3·3 +2·2 -5|/√(3² +2²) = 8/√13
d = (8√13)/13 ≈ 2.2 . . . . . after rationalizing the denominator