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2 years ago

Can someone help me with this Geometry question ASAP, thanks!

Mathematics

1 answer:

slega [8]2 years ago

4 0

We are given an isosceles triangle.

An isosceles triangle has corresponding angles of corresponding sides same.

<em>Therefore, other angle is also of (3x+7) degrees.</em>

(5x+13) and (3x+7) makes a linear pair.

Therefore,

(5x+13) + (3x+7) = 180

5x +13 + 3x +7 = 180.

8x +20 = 180.

Subtracting 20 from both sides, we get

8x +20-20 = 180-20.

8x = 160

Dividing both sides by 8, we get

<h3>x = 20.</h3><h3>Therefore, correct option is 3rd option. </h3>

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Can someone help me pls

babymother [125]

It’s an isosceles triangle so it’s 4

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2 years ago

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Billie solved the equation below by completing the square, but she got the incorrect solution. In which step did Billie first ma

Tanzania [10]

Answer:

step 2

Step-by-step explanation:

we have

$x^{2} +10x-49=0$ ---> given problem

step 1

Move the constant to the right side

$x^{2} +10x=49$

the step 1 is correct

step 2

Complete the square

$x^{2} +10x+5^2=49+5^2$

$x^{2} +10x+5^2=74$

<u><em>The step 2 is not correct</em></u>

step 3

Rewrite as perfect squares

$(x+5)^{2}=74$

step 4

take square root both sides

$x+5=\pm\sqrt{74}$

step 5

Find the values of x

$x=-5\pm\sqrt{74}$

$x=-5+\sqrt{74}$

$x=-5-\sqrt{74}$

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2 years ago

At the library, 56 people borrowed

irina [24]

Answer:

24 people borrowed the books on Friday

Step-by-step explanation:

Every day, the number of books is being subtracted by 2.

56 - Monday (-8)

48 - Tuesday (-8)

40 - Wednesday (-8)

32 - Thursday (-8)

24- Friday

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2 years ago

On a recent trip to a computer store you purchased one software package for 24.99 and three printer cartridges the total bill wi

DanielleElmas [232]

Answer:

The price of a single printer cartridge is 19.69, in your given currency.

Step-by-step explanation:

First remove the tax and the software package from the total bill.

$90.01 - 24.99 - 5.95 = 59.07$

Since there are 3 cartridges, you divide 59.07 by 3, giving you the price of a single cartridge.

$59.07 \div 3 = 19.69$

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2 years ago

The sum of the digits of a 2-digit number is 1. What is the number?

Gnom [1K]

Answer:

The number is 10

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2 years ago

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