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Furkat [3]
2 years ago
12

The area of a rectangular

Mathematics
1 answer:
tankabanditka [31]2 years ago
3 0

Answer:

2x+5

Step-by-step explanation:

Okay so lets first factor 2x^2+15x+25

2*25=50

10+5=15

10*5=15

(x+10/2)(x+5/2)

=(x+5)(2x+5)

we know that the width is x+5 so that means the length has to be 2x+5

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Answer:

45

Step-by-step explanation:

Every Triangle has 180 degrees.

x + 8x + 3x = 180

12x = 180

x = 180/12

x = 15

Angle K = 3x

K = 3 * 15

K = 45

3 0
3 years ago
What's the answer to this?: divide 33 photos into two groups so the ratio is 4 to 7
velikii [3]

total units of ration = 4 +7=11

so, ratio would be (4*33)/11 : (7*33)/11

12 : 21 is the answer.

Did you understand?

5 0
3 years ago
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A private jet flies the same distance in 8 hours that a commercial jet flies in 7 hours. If the speed of the commercial jet was
mamaluj [8]

Solving a system of equations, we can see that:

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<h3>How to find the speeds of each jet?</h3>

Let's define the variables:

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  • C = speed of the commercial jet.

With the given information, we can write:

P*8h = D

C*7h = D

C = 2*P - 144mi/h

So we have a system of 3 equations, where D is the distance in the problem.

With the first and second equations we can write:

P*8h = D = C*7h

Isolating P, we get:

P = C*(7/8)

Now we can replace that in the last equation:

C = 2*P - 144mi/h

C = 2*C*(7/8) - 144mi/h

And now we can solve that for C.

C - 2*(7/8)*C = - 144mi/h

C*(1 - 14/8) = -144mi/h

C*(8/8 - 14/8) = - 144mi/h

C*(6/8) = 144mi/h

C = (8/6)*144mi/h = 192mi/h

Now that we know the speed of the commercial jet, we can find the speed of the private jet.

P = C*(7/8) = 192mi/h*(7/8) = 168 mi/h

If you want to learn more about systems of equations:

brainly.com/question/13729904

#SPJ1

6 0
2 years ago
the mgf of a random variable x is e^3(e^t-1). Find P[mean - standard deviation squared &lt; X &lt; 1/2( mean + standard deviatio
postnew [5]
The given MGF is that for a random variable following a Poisson distribution with parameter \lambda=3.

This means \mathbb E(X)=\mathbb V(X)=\lambda, and X has PMF

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This is equivalent to

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8 0
3 years ago
Solve the equation for u.<br> Uw + uq=r
soldi70 [24.7K]

Answer:  u= \frac{r}{w+q}

Step-by-step explanation:

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u ( w + q) = r   Now divide both sides by w+q

u = \frac{r}{w+q}

4 0
3 years ago
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