3 years ago

If a = x+21, b = 4, c = x + 3, and d = 10, then the value of x =

Mathematics

2 answers:

Alex3 years ago

4 0

Using the intersecting chord theorem:

a x b = c x d

x+21 * 4 = x+3 * 10

Simplify:

4x+84 = 10x+30

Subtract 30 from both sides:

4x + 54 = 10x

Subtract 4x from both sides:

54 = 6x

Divide both sides by 6:

x = 9

sdas [7]3 years ago

3 0

Answer:

x=9

Step-by-step explanation:

(segment piece) x (segment piece) = (segment piece) x (segment piece)

ab = cd

(x+21) *4 = (x+3)*10

Distribute

4x+84=10x+30

Subtract 4x from each side

84 = 10x-4x+30

84 = 6x+30

Subtract 30 from each side

54 = 6x

Divide by 6

54/6 = 6x/6

9=x

You might be interested in

Can anyone help us on this question

Taya2010 [7]

Area = (1/2) * 4 * 5 = 10 cm²

8 0

3 years ago

1) I I ? 20- A) 999 C) 1219 B) 39° D) 1020

WITCHER [35]

Answer:

Step-by-step explanation:

$\angle{VUW} = 180 - 141 = 39$

$\angle{WVU} = 180 - (20 + 39) = 121$

Answer: 121

8 0

3 years ago

Which of the following equations are true? Select all that apply.

patriot [66]

Answer:

none of them are true, but if you could re copy and paste and delete all of the spaces, I can make 100% sure because I could've did something wrong with it looking like this.

24.8/ 102= 0.243

34.65/ 1,000= 0.03465

193.5/100= 1.935

6.24/10= 0.624

160.4/ 102= 1.5725

these are the equations in the problem with their actual answers, none of them match the ones provided

Step-by-step explanation:

3 0

3 years ago

Clara is building a triangular garden. She wants the length of the longest side to be three more than twice as long as the lengt

ASHA 777 [7]

s+(2s+3)+12

3s+15

that the answers for this problem

6 0

4 years ago

Read 2 more answers

Answer for s or the total

ludmilkaskok [199]

Hey There!

Cross multiply on both sides, with this you will be cross multiplying in order to set the numbers up.

s * 2.4 = 2.4s

2.8 * 6 = 16.8

2.4s = 16.8

Divide s from both sides:

16.8/2.4

The answer is 7 or s= 7

5 0

4 years ago