All categories

3 years ago

Can someone help? ( I need it by 10/20)

Mathematics

1 answer:

Hoochie [10]3 years ago

4 0

<h3>Answer: x = 12</h3>

=====================================================

Explanation:

C is the midpoint of AB. This means AC is half as long as AB

Put another way, AB is twice as long as AC

AB = 2*AC

AB = 2*( AC )

32 = 2*( x/2 + 10 ) .... substitution

32 = 2*(x/2) + 2*10 ... distribute

32 = x + 20

x+20 = 32

x = 32-20 .... subtract 20 from both sides

x = 12

---------

If x = 12, then

AC = x/2 + 10

AC = 12/2 + 10

AC = 6+10

AC = 16

which is half of AB = 32, so it confirms our answer.

You might be interested in

Robert's dog is 4 years older than Karen's cat. In 3 years, the sum of the ages of Robert's dog and Karen's cat will be 13. How

mylen [45]

Answer:

5.5 years old.

Step-by-step explanation:

Let D represent present age of Robert's dog and C represent present age of Karen's cat.

We have been given that Robert's dog is 4 years older than Karen's cat. We can represent this information in an equation as:

$D=C+4...(1)$

We are also told that in 3 years, the sum of the ages of Robert's dog and Karen's cat will be 13. After 3 years age of dog and cat would be $D+3$ and $C+3$ respectively.

We can represent this information in an equation as:

$D+3+C+3=13...(2)$

From equation (1), we will get:

$C=D-4$

Upon substituting this value in equation (2), we will get:

$D+3+D-4+3=13$

Combine like terms:

$2D+2=13$

$2D+2-2=13-2$

$2D=11$

$\frac{2D}{2}=\frac{11}{2}$

$D=5.5$

Therefore, Robert's dog is 5.5 years old right now.

3 0

3 years ago

Brainliest to who answers :>

rusak2 [61]

Answer:

L is not valid.

Step-by-step explanation:

For any triangle, the sum of the two legs must be greater than the hypotenuse. Otherwise the two legs would not be long enough to touch.

7 0

2 years ago

Read 2 more answers

What value of x makes this equation true?

m_a_m_a [10]

2(2)-3=5-2(2)
4-3=5-4
1=1

The correct answer is A

5 0

3 years ago

Read 2 more answers

Write the following in simplified radical form.

REY [17]

Step-by-step explanation:

I think the answer is like this

7 0

3 years ago

Which of the following is an even function?

nika2105 [10]

Answer:

An even function is:

f(x) = 7

Step-by-step explanation:

An even function accomplish the following condition:

f(x)=f(-x) (1)

Applying (1), we have:

f(x)= (x-1)^2 $\neq$ f(-x) $\neq$ (-x-1)^2
f(x)= 8x $\neq$ f(-x) $\neq$ -8x
f(x)= x^2 -x $\neq$ f(-x) $\neq$ (-x)^2 +x

f(x)=7 = f(-x)= 7

The last one is even.

3 0

3 years ago