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motikmotik
2 years ago
11

How long should an escalator be if it is to make an angle 30 with the floor and

Mathematics
1 answer:
Charra [1.4K]2 years ago
7 0

Answer:

it should be 23 feet long

Step-by-step explanation:

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Please help quick will give brainliest
Fofino [41]

Answer: a(n)= a(n-1)+5

First term=8

A(n-1)= the previous term

3 0
3 years ago
PLEASE HELP NEED THIS TO PASS
yaroslaw [1]

The solutions to f(x) = 64 is x = 7 and x = –7.

Solution:

Given data:

$f(x)=x^{2}+15 – – – – (1)

f(x)=64 – – – – (2)

To find the solutions to f(x) = 64.

Equate equation (1) and (2), we get

x^2+15=64

Subtract 15 from both sides of the equation.

x^2+15-15=64-15

x^2=49

x^2=7^2

Taking square root on both sides of the equation, we get

x = ±7

The solutions to f(x) = 64 is x = 7 and x = –7.

5 0
3 years ago
What is the sum of the polynomials? (6x + 7 + x2) + (2x2 - 3)
astraxan [27]

Answer:

3x^2+6x+4 is the answer :D

8 0
3 years ago
Read 2 more answers
OT bisects ∠DOG. Find the measure of ∠DOG if ∠DOT = 4x + 4 and ∠TOG = 5x – 3
g100num [7]

Answer:

\huge\boxed{64^o}

Step-by-step explanation:

If OT is bisects ∠DOG, then m∠DOT = m∠TOG. Therefore

4x+4=5x-3    |<em>subtract 4 from both sides</em>

<em />4x+4-4=5x-3-4\\\\4x=5x-7<em>|subtract 5x from both sides</em>

<em />4x-5x=5x-5x-7\\\\-x=-7<em>|change the signs</em>

<em />x=7<em />

Calculate the measure of ∠DOG

m∠DOG = 2(m∠DOT)

m\angle DOG=2(4\cdot7+4)=2(28+4)=2(32)=64

6 0
3 years ago
4x+8y=17<br> Solve for y
olasank [31]

Answer:

4x + 8y = 17  

Solve for y.

You want to get y on one side of the equal sign by itself so... you subtract 4x from both sides to get:

8y = -4x + 17

Then you divide both sides by 8 to get:

y= -4x/8 +17/8

Then simplify the fractions to get:

y = -2x/4 + 17/8

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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