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Zolol [24]
3 years ago
11

HELLLOOOO THIS IS DUE HELP

Mathematics
1 answer:
loris [4]3 years ago
7 0

Answer:

RS=13

Step-by-step explanation:

RS+ST=RT

2w+1+w-1=18

3w=18

w=6

RS= 2w+1= 2(6)+1= 12+1= 13

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Emma has $89 in her bank account. she uses 30% of her money to pay a bill. How much did she spend?
Alexxandr [17]
The answer is c 10% of 89 is 8.9 so multiply by 3 you get 26.70

7 0
3 years ago
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It costs $68 for 16 square feet of flooring. How much does it cost for 12 square feet of flooring?
belka [17]
We know that it costs $68 for 16 square feet of flooring. To find out how much it costs for 12, we first have to find out how much it costs for 1 square foot.
To find that, we would do $68 divided by 16, which is 4.25.
That means 1 square foot costs $4.25.
Then, we would multiply $4.25 by 12 to find how much 12 square feet costs.
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5 0
4 years ago
Please help me! I don't understand this! DUE TODAY
pishuonlain [190]
Answer: See the answers below.

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For the second equation, you need to solve 0 = -16t^2 + 18.
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No, the rate of change is not constant because this is a quadratic equation.
5 0
3 years ago
Solve differential equation. Just explain the first 2 steps
lutik1710 [3]
(1) will write us of the following form

\dfrac{dy}{dx}+y^2\sin x=0\\ \\


(2) [do not it need explanation]

\dfrac{dy}{dx}=-y^2\sin x\\ \\


(3) Left place variable "y" and right place, variable "x" like this

\dfrac{dy}{y^2}=-\sin x\, dx\\ \\

(4) Integrate both members 

\displaystyle
\int \dfrac{dy}{y^2}=\int-\sin x\, dx\\ \\

(5) Solve us the integrals

-\dfrac{1}{y}= \cos x+C

(6) Isolate variable "y"

\boxed{y=-\dfrac{1}{\cos x+C}}

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aivan3 [116]

Answer:

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Step-by-step explanation

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3465miles/17.5gal = 198 mpg

7 0
3 years ago
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