All categories

3 years ago

Answer if you know

Mathematics

2 answers:

zhannawk [14.2K]3 years ago

8 0

Answer:

B. 30

Step-by-step explanation:

The given angles are vertical angles because they are opposite angles created by the same two lines. This means that their value is equal. Let's set up an equation.

85 = 3x - 5

We need to solve for x.

First, combine like terms by adding 5 to both sides.

90 = 3x

Now we want to isolate x by dividing both sides by 3.

x = 30

This is your answer.

Let's check our work by plugging x back into our equation.

85 = 3x - 5

85 = 3(30) - 5

85 = 90 - 5

85 = 85

Your answer is correct.

Hope this helps!

katrin [286]3 years ago

7 0

Answer:

It's B .

Value of X is 30 .

You might be interested in

Slope of the linear equation 4x = 2y - 3 is ____.

Anettt [7]

Answer:

Step-by-step explanation:

we want y = mx + b

4x = 2y - 3

-2y = -4x - 3

2y = 4x - 3

therefore the gradient (slope) = the coeffecient of x, which in this case is 4

3 0

2 years ago

Write the number 3.8 in the form , using integers, to show that it is a rational number.

pantera1 [17]

9514 1404 393

Answer:

3.8 = 38/10 = 19/5

Step-by-step explanation:

You can always represent a terminating decimal number as the ratio of integers. Count the number of decimal places, and multiply and divide it by 10 to that power. If you like, you can reduce the resulting fraction. 3.8 has 1 decimal place, so our chosen power of 10 is 10¹.

3.8 = (3.8×10¹)/(10¹) = 38/10 = 19/5

6 0

3 years ago

Linda calculated that the saucer for her teacup has an area of 50.24 square centimeters. What is the saucer's circumference?

Brilliant_brown [7]

Answer:

The saucer's circumference is 25.12 centimeter.

Step-by-step explanation:

Given:

Linda calculated that the saucer for her tea cup has an area of 50.24 square centimeters.

Use 3.14 for π.

Now, to find the saucer's circumference.

So, we get the radius first by putting the formula of area:

Area = 50.24 square centimeters.

Let radius be $r.$

$Area = \pi r^2.$

$Area = \pi\times r^2.$

As given we use 3.14 for π.

$50.24 = 3.14\times r^2.$

Dividing both sides by 3.14 we get:

$16=r^2.$

Using square root on both sides we get:

$4=r$

$r=4$

Thus, the radius = 4 centimeters.

Now, to get the circumference we put formula:

$Circumference=2\pi r$

$Circumference=2\times \pi \times r$

$Circumference=2\times 3.14\times 4$

$Circumference=25.12$

Circumference = 25.12 centimeter.

Therefore, the saucer's circumference is 25.12 centimeter.

3 0

4 years ago

Determine whether each function is an example of exponential growth or decay. Then, find the y -intercept. y=0.5(1/4) x

lutik1710 [3]

4x you had 0.5x are the y -intercept.

How can you tell whether an exponential function is growing or deteriorating?

As the exponential's base is greater than 1, which occurs when those numbers increase, we are seeing exponential growth.
When the exponential's base is between 1 and 0, and those numbers decrease, we have exponential decay.

You can obviously plot it but if you can also conside that in your function you have 4x

; this tells you that as

x increases (gets bigger) certainly

4x will increase as well (you can consider

4²= 16 and 4³ = 64

). It is true that you have to multiply by

0.5

but nevertheless the entire function will grow anyway!

Graphically:

graph{0.5*(4^x) [-14.24, 14.24, -7.12, 7.12]}

If you want, try to think at the case where instead of having

4x you had 0.5x .

Learn more about exponential function

brainly.com/question/14355665

#SPJ4

3 0

1 year ago

Use the correct order of operations to solve the problem below.

adoni [48]

Answer:

Step-by-step explanation:

parenthesis

exponents

multiply or divide from left to right

add or subtract from left to right

14 - 8 + 6 - 5

6 + 6 - 5

12 - 5

5 0

3 years ago

Read 2 more answers