2 years ago

I need help asap this in do today

Mathematics

1 answer:

RoseWind [281]2 years ago

5 0

Answer:

your school got me lost what grade you in

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Bob needs to wash the windows on his house. He has a 25-foot ladder and places the base of the ladder 10 feet from the wall on t

Andrei [34K]

Answer:

22.9 ft

Step-by-step explanation:

the height of the wall that reached by the ladder = √ (25²-10²)

=√(625-100)

=√525

= 22.9 ft

7 0

2 years ago

What percent us 28 of 70?

RoseWind [281]

$\displaystyle\\
 \frac{28}{70} ^{(7} = \frac{4}{10} = \frac{40}{100} = \boxed{40\%}$

3 0

2 years ago

Simplify.

Citrus2011 [14]

First I'd expand the brackets so that you can re-simplify the values, so:
(2x + 3)(3x + 4)
6x^2 + 9x + 8x + 12
6x^2 + 17x + 12
The answer A. 2x(3x + 4) + 3(3x + 4) can be simplified the same way, with 6x^2 + 8x + 9x + 12, and so the answer is A. I hope this helps!

3 0

2 years ago

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Help me please please

Rama09 [41]

Answer:

Step-by-step explanation:

$\frac{1}{3}$ ×12+8

3 0

3 years ago

What is the surface area of a sphere with the given dimension? Express your answer to nearest hundredth. Use 3.14 for pi. Radius

pav-90 [236]

Okay. The equation for a sphere's surface area is A = 4 * pi * r^2. Let's plug 5 in for r.
$4 \pi (5^2) = 4(3.14)*25 = 100 * 3.14 = 314$
I got 314 cm^2 is the surface area, but it always helps to double check work! Hope this helps!

3 0

2 years ago

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