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Leokris [45]
3 years ago
7

How do you write an algebraic expression for 3 times the sum of x and y squared plus 5 times the difference of 2x and y

Mathematics
1 answer:
Vika [28.1K]3 years ago
8 0
3(x+y2)+(5)2x-y
The two by the y is supposed to be squared just to let you know hopefully this helps you
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Find the quotient. Write your answer as a decimal.<br> 12.42 divided by (-4.8) =
MakcuM [25]

Answer:

Multiply the divisor by a power of 10 to make it a whole number.

Multiply the dividend by the same power of 10. Place the decimal point in the quotient.

Divide the dividend by the whole-number divisor to find the quotient.

7 0
2 years ago
Please help answer the following question
Elena L [17]

Answer:

D

Step-by-step explanation:

The unmarked angle of the triangle is also 40o. The triangle is marked with two equal sides (isosceles).

<2 + 40 + 40 = 180            Combine the left

<2 + 80 = 180                    Subtract 80 from both sides

<2 = 180 - 80

<2 = 100 degrees.

That's not the answer. We have to solve for x

<2 = x + 106

100 = x + 106       Subtract 106 from both sides

100 - 106 = x

x = - 6

8 0
2 years ago
25 points
elixir [45]
C. 4x + y = 21

4(3) + 9 = 21
12 + 9 = 21
21 = 21
8 0
3 years ago
Read 2 more answers
A Speedboat increases in speed uniformly from 20m/s to 30m/s for 12.2 s. What is the acceleration of the speedboat?
Aloiza [94]

Answer:

0.82 m/s^2

Step-by-step explanation:

Given data

initial velocity=20m/s

Final velocity= 30m/s

Time = 12.2s

Applying the formula

a= v-u/t

a= 30-20/12.2

a= 10/12.2

a= 0.819

a=0.82 m/s^2

6 0
2 years ago
A cat requires a 3 mL injection of a 0.5% solution. How many milligrams will it receive per injection?
Kay [80]
<h2>Hello!</h2>

The answer is: 15mg

<h2>Why?</h2>

0.5% means that there are 0.5 grams per 100 mL,  and a 0.5 grams are equal to 500 milligrams.

So, to calculate how many milligrams will be received per injection, we need to make the following calculations:

3mL*\frac{500mg}{100mL}=15mg

Have a nice day!

7 0
3 years ago
Read 2 more answers
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