All categories

2 years ago

HELP DUE IN 15 MINS! x = ??

Mathematics

1 answer:

kkurt [141]2 years ago

3 0

Answer:

Step-by-step explanation:

<u>Use intersecting chords theorem:</u>

5(5x + 2) = 10(6)
5x + 2 = 12
5x = 10
x = 2

You might be interested in

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical

lisov135 [29]

If c is the hypotenuse and b is the leg, then the third side (a):
$a= \sqrt{c^2-b^2}= \sqrt{16^2-9^2}= \sqrt{256-81}= \sqrt{175}=5 \sqrt{7}$

If b and с are legs, then hypotenuse (a):
$a= \sqrt{b^2+c^2}= \sqrt{9^2+16^2}= \sqrt{81+256}= \sqrt{337}$

3 0

2 years ago

Read 2 more answers

What is the some of the counting numbers from 1 to 80?

kumpel [21]

There is a formula for adding consecutive numbers:
total = n*(n+1)/2
total = 80*(81)/2
total = 3,240

7 0

2 years ago

Lucy and Ayu sold a total of 1,080 iPads. Lucy sold 7 times as many as Ayu. How many did each sell

Galina-37 [17]

Answer:

let L=lucy and A=ayu

l+a=1080

l=7a 7a+a=1080

8a=1080 8a/8=1080/8

ayu=135

l=7a l=7×135

l=945 so:-135+945=1080

6 0

2 years ago

Assume women’s heights are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. a. If one wom

Zarrin [17]

Answer: a) 0.5636 b) 0.7881

Step-by-step explanation:

We assume that women’s heights are normally distributed .

Let x be the random variable that represents the shoe sizes.

Also, The population mean = $\mu=\text{63.6 inches}$ ; Standard deviation: $\sigma=\text{2.5 inches}$

a) Formula for z:-

$z=\dfrac{x-\mu}{\sigma}$

Put x= 64, we get

$z=\dfrac{64-63.6}{2.5}=0.16$

Now, the probability that the male shoe sizes are greater than 8 :-

$P(z$

Hence, the probability that her height is less than 64 inches = 0.5636

b. Sample size : n= 25

Then , the formula for z :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

Put x= 64, we get

$z=\dfrac{64-63.6}{\dfrac{2.5}{\sqrt{25}}}=0.8$

Then, the probability that they have a mean height less than 64 inches.:_

$P(z$

Hence, the probability that they have a mean height less than 64 inches. =0.7881

7 0

2 years ago

Read 2 more answers

The table represents the details of the loan for Carla's new car purchase. What is the value of C? Cost of car $14,890 Down Pa

Levart [38]

9514 1404 393

Answer:

see attached

Step-by-step explanation:

The amount financed (A) is the cost less the down payment.

The amount repaid (B) is the monthly payment times the number of months.

The finance charge (C) is the difference between the amount repaid and the loan amount.

The total cost (D) is the sum of the cost of the car and the finance charge.

4 0

2 years ago