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koban [17]
3 years ago
11

The area of a rectangle is represented by 5x^2+19x+12. What is the length?

Mathematics
1 answer:
prisoha [69]3 years ago
7 0
5x^2+19x+12=5x^2+15x+4x+12=5x(x+3)+4(x+3)\\\\=(x+3)(5x+4)\\\\Answer:x+3\ \times\ 5x+4
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The sides of two cubes are in the ratio 2:1. What is the ratio of their volumes ?
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Answer:

we know that, Volume of cube=a³

Let volume of 1st cube be 2x with side a and other be x with side A (according to given ratio)

Step-by-step explanation:

ATQ: 2x=a³ and, x=A³

a=³√2x and, A=x

we know that, surface area of cube is 6a²

Thus, surface area of 1st cube = 6(³√2x)²

= 6³√4x²

Surface area of 2nd cube=6(x)²=6x²

Ratio of S.A=(6³√4x²)÷(6x²)

Ratio of S.A=³√4:1

<em><u>Please mark as brainliest</u></em>

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5 0
3 years ago
Which type of stored energy is released when something burns?
krek1111 [17]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Each course at Mt. Regis College is worth either 3 or 4 credits. The members of the men's swim team are taking a total of 48 cou
kolezko [41]

Answer:

3 Credit Courses = 37

4 Credit Courses = 11

Step-by-step explanation:

1. Set up 2 equations:

3x + 4y = 155

x + y = 48

2. Simplify the second expression for x by subtracting y from both sides

x = 48 - y

3. Substitute 48 - y for x

3(48-y) + 4y = 155

4. Simplify the expression by multiplying by 3

144 - 3y +4y = 155

5. Subtract 144 from both sides and subtract 3y from 4y

y = 11 = 4 Credit Courses

6. Substitute y for equation 2

x = 48-11

7. solve for x

x = 37 = 3 Credit Courses

7 0
3 years ago
Write a real-life situation that can be modeled by the expression 1 1/3 x 2.
FromTheMoon [43]
You have 11 ounces of candy per package you got to split 3 ways you have 2 packages how much candy does each person get?

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3 years ago
Read 2 more answers
Solve for x in the diagram below.
user100 [1]

Answer:

x = 34°

Step-by-step explanation:

As you can see, in your pic there is a straight angle which is equal to 180°

Therefore, all the 3 angles combined will be equal to 180°

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3 years ago
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