Answer:
C = 77°
Step-by-step explanation:
From the intercepted arc theorem, we can say that Angle ABC (angle B) is HALF of the arc intercepted (which is 110).
Hence, angle ABC = 55.
Now, looking at triangle ABC, we know that sum of 3 angles of a triangle is 180. We already know Angle A to be 48 and Angle B to be 55, thus Angle C is:
A + B + C = 180
48 + 55 + C = 180
103 + C = 180
C = 180 - 103
C = 77
Make q the subject of the formula 2(q+p) = 1+5q. Give your answer in the form ap-b/c where a,b and c are all positive integers
Answer:
[tex]\frac{2p-1}{3}[/tex]
Step-by-step explanation:
Since you want to get q only and q appears in both side of the equation. Try to isolate q to one side.
1) Expand 2(q+p)
2q + 2p = 1 + 5q
2) Move all q terms to one side
5q - 2q = 2p - 1
3q = 2p - 1
3) Divide 3 on both side (to isolate q)
q = [tex]\frac{2p-1}{3}[/tex]
After making q the subject of the formula in the equation 2(q + p) = 1 + 5q, the resulting solution is:
[tex]q = \frac{2p - 1}{3}[/tex]
The given equation is:
2(q + p) = 1 +5q
To make q the subject of the formula, follow the steps below
Expand the expression using the distributive rule
2q + 2p = 1 + 5q
Collect like terms by subtracting 2q from both sides of the equation
2q - 2q + 2p = 1 + 5q - 2q
2p = 1 + 3q
Subtract 1 from both sides of the equation
2p - 1 = 1 + 3q - 1
2p - 1 = 3q
Divide through by 3
[tex] \frac{2p - 1}{3} = q[/tex]
Therefore after making q the subject if the formula in the equation 2(q + p) = 1 + 5q, the resulting solution is:
[tex] q = \frac{2p - 1}{3}[/tex]
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What is the measure of Angle F, to the nearest degree?
The 2 ft side length of the scale drawing corresponds to a side length of 120 feet for the actual skate park. What is the scale factor?
Answer:
The scale factor is [tex]\frac{1}{60}[/tex]
Step-by-step explanation:
we know that
The scale factor is equal to the ratio between the side length of the scale drawing to the corresponding side length in the actual
so
[tex]\frac{2}{120}=\frac{1}{60}[/tex]
Answer:
1/60
Divide
Step-by-step explanation:
The points (4, 1) and (x, -6) lie on the same line. If the slope of the line is 1 what is the value of x?
A -3
b 3
c 9
d 11
Answer:
x=9
Step-by-step explanation:
The Slope is given by the following equation
m= (y2-y1) / (x2-x1)
Where x2=4, x1=x, y2=1, y1=-6, m=1 by requirements of this problem
Developing the equation we have this:
[tex]1=\frac{1-(-6)}{4-x}[/tex]
Which leaves to the following equation
[tex]5=4-x[/tex]
Resulting that x=9
the class kept track of rainy and sunny days. During the 54 days, classified rainy or sunny, the ratio of rainy days is 7 to 14. How many sunny days were there?
There are 36 sunny days
1:2
1 + 2 = 3
54/3 = 18
1 • 18 = 18
2 • 18 = 36
There are 36 sunny days.
Hope this helps!
If it does then I would appreciate it if you could make me brainliest.
l dont know what to do?
1. Multiply the amount of iced tea mix by 1/3 to get the amount of water.
Explanation:
As seen in the graph, for every 1 cup of water, 3 tablespoons of the mix are needed.
3 * X = 1
X= 1/3
2. Use the equation y=3x
X=18 , y=cups of water needed
Y= 3*18
Y= 54 cups of water are needed
Calculate electric force a 0.020kg balloon is charged by rubbing and then stuck to the ceiling
Answer:
Step-by-step explanation:
therefore, force F = m*g
= 0.02 kg * 9.8 m/s^2
= 0.196 Newton Force in the MKS system of units is measured in NEWTONS and results from a product of mass in Kg and acceler. the formula is s o the force=mass x acceleration. and the answer is .02x9.8^2= 1.6928ation in meters/sec^2
The electric force of a charged balloon sticking to the ceiling is due to the interaction between the balloon and the induced positive charge in the ceiling. This force is related to the principle of electrostatics and can theoretically be calculated using Coulomb's Law, but would require more details. However, for the balloon to remain stuck to the ceiling, this electrostatic force must be greater than the weight of the balloon.
Explanation:To calculate the electric force of a charged balloon sticking to the ceiling, you first need to consider the scenario as an interaction between the charged balloon and the induced charge in the ceiling. This scenario is related to the principle of electrostatics, where like charges repel and different charges attract. It is the electrostatic force that is making the balloon stick to the ceiling.
The balloon gets charged by picking up extra electrons (negative charge) when rubbed. When brought near the ceiling, these extra electrons in the balloon repel the electrons in the ceiling, causing the area of the ceiling near the balloon to be positively charged. This induced positive charge in the ceiling then attracts the negatively charged balloon. The force between the balloon and the ceiling can be caluclated using Coulomb's Law, which states that the force between two charges is directly proportional to the product of their charges, and inversely proportional to the square of the distance between them. However, to accurately calculate this force using Coulomb's law, we need more information such as the amount of charge on the balloon and the distance from the balloon to the ceiling.
Finally, for a balloon to stick to the ceiling, the electrostatic force must be greater than the weight of the balloon. The weight of the balloon can be calculated using the formula Weight = mass x gravity. In this case, the mass of the balloon is 0.020kg and the gravitational force is approximately 9.8 m/s². Therefore, the weight is 0.020kg x 9.8 m/s² = 0.196N. So for the balloon to stick to the ceiling, the electrostatic force must be greater than 0.196 N.
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Identify the equation that represents the line of best fit on this scatter plot.
30 POINTS
[tex]y=\frac{5}{7} x+2[/tex]
How?
The way you find it is easy. +2 means go up 2y. 5 is y too, so you do 2+5=7. Now go 7 positive x. The answer is this.
Hope this helped:)
Answer:
C. [tex]y=\frac{5}{7}x+2[/tex].
Step-by-step explanation:
We have been given a scatter plot. We are asked to find the equation of line of best fit.
First of all, we will find slope of line of best fit using points [tex](0,2)[/tex] and [tex](7,7)[/tex].
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m=\frac{7-2}{7-0}[/tex]
[tex]m=\frac{5}{7}[/tex]
We can see that y-intercept of line of best fit is 2.
We will write our equation in slope intercept form [tex]y=mx+b[/tex], where,
m = Slope,
b = The y-intercept.
Upon substituting [tex]m=\frac{5}{7}[/tex] and [tex]b=2[/tex] in slope-intercept form, we will get:
[tex]y=\frac{5}{7}x+2[/tex]
Therefore, the equation of line of best fit for given scatter plot is [tex]y=\frac{5}{7}x+2[/tex] and option C is the correct choice.
What is 2000x27895 equals
Answer:
55790000 :p :)
Answer: it would be 55,709,000
Step-by-step explanation:
Can some body help me with number 12 it’s due tomorrow.
Answer:
Mean = 51.375
Mode = 55,44
Step-by-step explanation:
add all the numbers up and divide by 8
find the most repeating numbers.
Answer:
Mean: 51.375
Median: 51.5
Mode: 44, 55
Hope This Helps! Have A Nice Day!!
can someone help me with this?
V=ABh
S=a +b+c
————-
2
=83.5
Which of the following cosine functions has a period of 3 π ?
A. y = 3cosx
B. y = cos3x
C. y = cos2/3x
D. y = 1/3cosx
Answer:
c. y= cos2/3x
Step-by-step explanation:
ANSWER
C.
[tex]y = \: \cos( \frac{2}{3}x ) [/tex]
EXPLANATION
The period of a cosine function is calculated using the formula;
[tex]T= \frac{2 \pi}{b} [/tex]
Therefore , if the period is 3π, then
[tex] \frac{2 \pi}{b} = 3\pi[/tex]
We solve b to obtain,
[tex]b = \frac{2}{3} [/tex]
This implies that, the given cosine function must have an equation of the form
[tex]y = a \: \cos( \frac{2}{3}x ) [/tex]
Among the options, the function in this form is:
[tex]y = \: \cos( \frac{2}{3}x ) [/tex]
The correct choice is C.
If the half-life of K-40 is 1.3 billion years and if a sample rock found on an island is estimated to be 1 billion years old, what percentage of the original parent K-40 would be present in the rock? Round your numerical values to the hundredths decimal place.
Answer Choices
(A) 76.92%
(B) 1.3%
(C) 58.67%
(D) 99.99%
For this case, we must make a rule of three, to find the percentage of the k-40 found in the sample found.
1.3 ----------> 100%
1 -------------> x
Where "x" represents the percentage of k-40 present in the sample found.
[tex]x = \frac {1 * 100} {1.3}\\x = 76.9230[/tex]
Rounding off we have:
76.92%
ANswer:
Option A
The percentage of parent K-40 remaining in the rock is calculated as 76.92% of the original K-40.
Percentage of parent K-40 remaining in the rock:
Calculate the number of half-lives: 1 billion years / 1.3 billion years = 0.7692 or about 0.77 half-lives.
Use the formula[tex](1/2)^n[/tex] where n is the number of half-lives to find the percentage remaining: [tex](1/2)^0.77[/tex] ≈ 0.76.
Convert to a percentage for the original K-40 remaining in the rock: 0.76 * 100% ≈ 76.92%.
Six less than twice a number x is four
The value of x is 5 for the given statement.
What is an Equation ?An equation is a mathematical statement formed when two algebraic expressions are equated by an equal sign.
The statement given in the question is
Six less than twice a number x is four
The equation that can be formed by this statement is
2x - 6 = 4
on solving the equation
2x = 10
x=5
The value of x is 5 for the given statement.
The complete question is
Six less than twice a number x is four , Determine the value of x.
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Can someone help ASAP I really need help 15 points
Answer:A=85 E=73 S=37 L=66.5 (or 65) T=82 P=53 D=10 O=89 C=17
Step-by-step explanation:
I am very good at Pythagorean theorem I did it this year.
To do this it is actually like the easiest thing to do in math. The formula is A²+B²=C². To do this it is easier with a scientific calculator. If you don't have one you can use this online calculator: desmos.com/scientific
Step 1. get the two number and square (²) them ( multiply that number by it) For Example 30 multiplied by 30. Or on the calculator I gave you just do 30²+40²
Step 2. After that you will get 2500. Then on the calculator get this symbol √ and but the number 2500 in front of it. it should look like this. √2500.
Step 3. After that you will get 50 which is your answer. And that is how you do Pythagorean theorem.
I hope that helped you. If you don't have a scientific calculator you can use the link I provided above. If you can't use it I reccomend buying one.
2 3/5 + 3 7/5 + 1 17/10
ANSWER
[tex] \frac{237}{10} \: or \: 23 \frac{7}{10} [/tex]
EXPLANATION
We want to simplify:
[tex]\frac{23}{5} + \frac{37}{5} + \frac{117}{10} [/tex]
The LCM of the denominators is 10.
We collect LCD to obtain.
[tex] \frac{23 \times 2 + 37 \times 2 + 117}{10} [/tex]
Carry out the multiplication in the numerator to get,
[tex]\frac{46 +74 + 117}{10} [/tex]
Add the numerator to get:
[tex] \frac{237}{10} = 23 \frac{7}{10} [/tex]
Bob's bill for dinner at surefire steak house was $45. In addition he piad 5°\° of the bill in tax and he left a tip for 15°\° of the bill how much did Bob spend for tax and tip combined how much did Bob spend in all?
Answer:
$54
Step-by-step explanation:
First
45 times .05= 2.25
Second
45 plus 2.25
Third
45 times .15= 6.75
Fourth
45+2.25+6.75
Answer:
$54
Step-by-step explanation:
Okay. if the bill in tax was 5% and the tip is 15% just add them up to make it easier. Now, you have 20%, and you have to now find 20% of 45, make 20% into .20, do .20x45 which equals 9 which represents $9. Finally, add $9 (from tip and tax) to $45 (how much the food cost) = $54
No problem!
7x+(2x+7)=9x+7 show work
it is true 9x=9x
7x+(2x+7)=9x+7
7x+2x+7=9x+7
-7. -7
7x+2x=9x
9x=9x
What is the value of h when the function h(x)=x^2−8x+14 is converted to vertex form?
Answer:
h=4
Step-by-step explanation:
The given function is
[tex]h(x)=x^2-8x+14[/tex]
We add and subtract the square of half the coefficient of x.
[tex]h(x)=x^2-8x+(\frac{-8}{2})^2-(\frac{-8}{2})^2+14[/tex]
[tex]h(x)=x^2-8x+(-4)^2-(-4)^2+14[/tex]
The first three terms forms a perfect square trinomial
[tex]h(x)=(x-4)^2-16+14[/tex]
[tex]h(x)=(x-4)^2-2[/tex]
We now compare to the vertex form;
[tex]h(x)=a(x-h)^2+k[/tex]
We have h=4
How do I find the measure of angle A?
The measure of angle A can be calculated using trigonometry and the components of a known vector. The relationship of the components forms a right triangle, the properties of which can be used to find the measure of angle A.
Explanation:The measure of angle A can be calculated using trigonometry if we know the distances from the problem. By knowing the scalar components Ax and Ay of vector A, we can find its magnitude and direction angle. In this case, the direction is the angle the vector forms with the positive direction on the x-axis, measured in the counterclockwise direction. The lengths A, Ax, and Ay form a right triangle, related by the Pythagorean theorem.
If the vector A is known, then its magnitude A and its angle are known. To find Ax and Ay, we use the following relationships for a right triangle: Ax = Acose. If the vector lies in the first or the fourth quadrant, where component Ax is positive, angle A is identical to the direction angle. Conversely, when the vector lies in the second or third quadrant, where component Ax is negative, the direction angle is A = 0 + 180°.
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The measure of angle A in the given figure is equal to 20 degrees.
To solve this question we can use the property of a triangle that the sum of all angles in a triangle is equal to 180 degrees.
We have been given three different angles in this figure which are: 90 degrees, 71x-1, and 20x.
Let us find the value of x before finding the value of angle A
71x-1 + 20x + 90 = 180
71x + 20x = 180 - 90 + 1
91x = 91
x = 1
Now we can calculate the value of angle A as:
20x
= 20 (1)
= 20 degrees
The measure of angle A is 20 degrees.
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Suppose f(x) = x^2 and g(x) = (3x)^2 which statement best compares with he graph of g(x) with the graph of f(x)
Answer:
Step-by-step explanation:
f(x) = x^2 and g(x) = (3x)^2. g(x) can be rewritten as 9x^2.
The graph of g(x) is similar to that of f(x), except that the graph of g(x) is the result of vertical stretching of the graph of f(x) by a factor of 9.
Answer: The graph of g(x) is horizontally compressed by a factor of 3.
Step-by-step explanation:
Got this answer right on apex
The figures are similar. The area of one figure is given. Find the area of the other figure to the nearest whole number.
The area of the smaller trapezoid is 771 m2.
a.
4,096 m2
b.
4,028 m2
c.
784 m2
d.
21 m2
Answer: Option b.
Step-by-step explanation:
First, you need to calculate the ratio of the area. This is:
[tex]ratio=(\frac{64}{28})^2\\\\ratio=\frac{256}{49}[/tex]
You know that the area of the smaller trapezoid is 771 m², then you can set up the following proportion, where "x" is the area of the larger trapezoid. Then you have:
[tex]\frac{256}{49}=\frac{x}{771}[/tex]
Now you must solve for "x". Therefore, you get that the area of the larger trapezoid is:
[tex]x=(771)(\frac{256}{49})\\\\x=4,028m^2[/tex]
To the nearest whole number, the area of the other similar figure is: b. 4,028 m².
What is the Area of Similar Figures?The ratio of the areas of two similar figures equals the ratio of the square of their corresponding sides.
Thus:
Let x represent the area of the other figure.
Therefore:
771/x = (28²)/(64²)
771/x = 784/4,096
x = (771 × 4,096)/784
x = 4,028
Therefore, to the nearest whole number, the area of the other similar figure is: b. 4,028 m².
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Help me find the which statements are true!!!!
Answer:
C.Step-by-step explanation:
[tex]\text{A. The absolute value of the slope of the line is equal to}\ \dfrac{HJ}{FG}\\\bold{FALSE}\\\text{because the slope of the line is equal to}\ \dfrac{HJ}{KJ}\\------------------------------\\\text{B. The absolute value of the slope of the line is equal to}\ \dfrac{FG}{JK}\\\bold{FALSE}\\\text{because the slope of the line is equal to}\ \dfrac{FG}{FK}\\------------------------------[/tex]
[tex]\text{C. Because triangles FGH and HJK are similar, the slope is the same}\\\text{between any two distinct points on the line.}\\\bold{TRUE}\\------------------------------\\\text{D. Because triangles FGH and HJK are not similar, the slope is found}\\\text{by using two distinct points on one of the triangles}\\\bold{FALSE}\\\text{because triangles FGH and HJK are similar (AAA)}[/tex]
All the dimensions of a triangle were multiple by the same factor. If the base of the triangle went from 1 centimeter to 3 centimeters, the area of the triangle was multiple by what?
6
3
9
12
Answer:
the area is multiplied by 9.
Step by Step Explanation:
Let x be the base
Let y be the height
Since all dimensions were multiplied by the same number, 3,
Original area,
1/2 × x × y = (1/2)xy
New area,
1/2 × 3x × 3y = (1/2)(9)xy
Hence, area is multiplied 9 times.
Need help please anyone ?
Answer:
The mean would be 14.4 hours.
Step-by-step explanation:
In order to find the mean, or average, of the numbers, you would add all the numbers together.
17 + 15 +14 + 14 + 12 which equals 72
Then, you take the total which is 72, and divide it by how many numbers you added together which is 5.
72/5 = 14.4
Answer:
14.4
Step-by-step explanation:
To find the mean in math, you add all of your numbers together, the divide by how many numbers you added together. So add 17,15,14,14, and 12 together to get 72. Divide 72 by 5 to get 14.4
NEED HELP ASAP!!! WILL MARK BRAINLIEST!!!
What is 20% of 500
Answer:
it 100 you would do 20%of 500 and you 100
Step-by-step explanation:
Answer: 100
Step-by-step explanation: 20% of 500 Is equal to 100. It’s also 1/5 in a fraction
Help with number four plz!!!!!!
Answer:
Yes
Step-by-step explanation:
First we'll find the number of total bars of soap.
8 + 8 + 11 = 27
Is 27 divisible by 27?
Yes because 27 / 3 = 9
So you could rearrange the soaps to have 9 bars in each basket.
What is the slope if the line x+3y = 10
Answer:
the slope is -1/3
the Y intercept is 10/3
Step-by-step explanation:
Answer:
-1/3
Step-by-step explanation:
We want to get the equation in slope intercept form (y=mx+b) where m is the slope and b is the y intercept
x+3y = 10
Subtract x from each side
x-x+3y = -x+10
3y = -x+10
Divide each side by 3
3y/3 = -1/3x +10/3
y = -1/3x +10/3
The slope is -1/3 and the y intercept is 10/3
find the solution to the system
y=x^2+8x+2
y=7x+4
A(-2,-10) and (1,11)
B(2,10) and (-1,-11)
C(-2,-34) and (1,11)
D no solution
Answer:
A
Step-by-step explanation:
Given the 2 equations
y = x² + 8x + 2 → (1)
y = 7x + 4 → (2)
Substitute y = x² + 8x + 2 into (2)
x² + 8x + 2 = 7x + 4 ( subtract 7x + 4 from both sides )
x² + x - 2 = 0 ← in standard form
(x + 2)(x - 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 2 = 0 ⇒ x = - 2
x - 1 = 0 ⇒ x = 1
Substitute these values into (2) for the corresponding values of y
x = - 2 : y = - 14 + 4 = - 10 ⇒ (- 2, - 10)
x = 1 : y = 7 + 4 = 11 ⇒ (1, 11)
The solutions are (- 2, - 10) and (1, 11) → A
Which of the following best describes the english expression five more than the quantity of a number minus six?
The answer is:
D. [tex](x-6)+5[/tex]
The answer is c because it’s the only one showing division