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Stels [109]
3 years ago
5

A set of stairs is being built as shown.

Mathematics
2 answers:
Oduvanchick [21]3 years ago
7 0

a squared + b squared = c squared

The answer is 7 inches

Sergio [31]3 years ago
5 0

Step-by-step explanation:

using Pythagoras a²+b²=c²

HOWEVER you know the hypotenuse

so it's rearranged to either c²-b²=a² or c²-a²=b²

so 13²-11²

so 169-121

this makes 48

square root 48 is 6.90 inches

this rounds up to <u>7</u><u> </u><u>Inches</u>

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Write each fraction as an expression with negative exponents.
Artemon [7]
The answer is w⁻²/v⁻².

v/w raised to the second power is (v/w)²

(v/w)² = v²/w²

Since xᵃ = 1/x⁻ᵃ, then v²/w² = 1/v⁻²w²

Since 1/xᵃ = x⁻ᵃ, then 1/v⁻²w² = w⁻²/v⁻²
8 0
2 years ago
Which are the two number that multiply is 300 and subtraction is 35​
alukav5142 [94]

Answer:

15 and 20

Step-by-step explanation:

4 0
2 years ago
A garden is made up of two squares and a quarter circle. What is the area of the garden?
Elanso [62]

9514 1404 393

Answer:

  100.27 ft^2

Step-by-step explanation:

The area of each square is ...

  A = s^2 = (6 ft)^2 = 36 ft^2

The area of the 1/4 circle is ...

  A = 1/4πr^2 = 1/4π(6 ft)^2 = 9π ft^2 ≈ 28.27 ft^2

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The area of the garden is the sum of the areas of the quarter circle and the two squares:

  A = 28.27 ft^2 + 2×36 ft^2 = 100.27 ft^2

The area of the garden is about 100.27 square feet.

7 0
2 years ago
I need help pls the answer choices are A) 8cm<br>B)2.1cm<br>C)4cm<br>D)5.46cm <br>15 points!​
hammer [34]

Answer:

x = 4

Step-by-step explanation:

5.2cm/1.3cm = 4 so it increased/decreased by 4

16cm/4 = 4cm

3 0
3 years ago
Can someone help me, please thanks
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D.) the moon    he wanted to go to the moon before any other countries 

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