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3 years ago

If AC = 20 centimeters, and BC = 16 centimeters, which does AB equal?

Mathematics

1 answer:

Anna11 [10]3 years ago

8 0

Answer:

The answer is B. 12 cm

Step-by-step explanation:

ABC is a right triangle

AB and BC are the legs and AC is the hypotenuse.

The Pythagorean theorem a^2 + b^2 = c^2 can be manipulated to solve for a and get 12.

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Pls help

Korvikt [17]

C is the answer to this question

5 0

3 years ago

Read 2 more answers

Can you guys help me with this question. -4(2x-7)<10-2x Write the solution in the form x ? A, where ? Represents the correct

Tema [17]

Answer:

x > 3

Step-by-step explanation:

You have the following inequality:

$-4(2x-7)$

In order to obtain the solution for x, you first apply distribution property in the left term of the inequality:

$-4(2x)-4(-7)$

Next, you sum 2x on both sides, and you subtract 28 on both sides too:

$-8x+2x+28-28$

(where you have simplifies similar terms)

Finally, you divide the inequality for -6, but you take into account that the inequality symbol change (because the operation with a negative term):

$\frac{-6x}{-6}3$

hence, the solution to the inequality is x > 3

4 0

3 years ago

What are the two modes? What mode does your calculator need to be set on? How do you change the mode?

GalinKa [24]

2 modes are radian and degree, should be set on radian for most classes, and you change by pressing mode

8 0

4 years ago

7,000 is 10 times as much as

Llana [10]

I think the answer is 700 as 700*10=7,000.

3 0

4 years ago

A boy scout troop is selling Christmas trees at a local tree lot. In the morning, they sold 20 Douglas Fir trees and 23 Noble Fi

Katarina [22]

Answer:

The cost of 1 Douglas Fir Tree = $30

The cost of 1 Noble Fir Tree = $ 79

Step-by-step explanation:

Let the cost of 1 Douglas Fir tree = $ x

Let the cost of 1 Noble Fir tree = $ y

Total Amount Earned in morning = $2,417

Total Amount Earned in evening = $2,022

Now, according to the question:

20 x + 23 y = 2417

and 20 x + 18 y = 2022

Subtraction both equation , we get

20 x + 23 y - (20 x + 23 y) = 2417 - 2022

or, 20x - 20x + 23 y - 18 y = 395

or, 5 y = 395

⇒ y = 395 / 5 = 79

Hence, the cost of 1 Noble Fir Tree = $ 79

Now, put the value of y in 20 x + 23 y = 2417 , we get

20x + 23(79) = 2417

or, 20x = 2417 - 1817 = 600

or, x = 600/20 = 30

Hence, the cost of 1 Douglas Fir Tree = $30

7 0

3 years ago