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4 years ago

9

Is y=5x-25 proportional

1 answer:

Vinvika [58]4 years ago

3 0

It is proportional because we increase y.

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What is the diameter of a sphere with volume of 7483

elena-14-01-66 [18.8K]

Answer:

The diameter of the sphere with the given volume is 24.268 units

Step-by-step explanation:

Volume of a sphere is given by the equation:

$V=4/3\pi r^3$

Plug in your volume and solve for r

$7483=4/3\pi r^3$

$7483(3/4)=\pi r^3$

$5612.25=\pi r^3$

$5612.25/\pi =r^3$

$1786.43=r^3$

$\sqrt[3]{1786.43}=r$

$r = 12.134$ units

$d = 2r$

$d = 2(12.134)$

$d = 24.268$ units

5 0

3 years ago

Find the products.please please please please please help me! I’m desperate!

Dmitry_Shevchenko [17]

Answers:

5) product is $35ax^2 - 42axy + 7y^2$

6) product is $-a^6b^2 - 8a^5b - 5a^4$

7) product is $12x^5y + 6x^4y^2 + 21x^3y^3$

8) product is $3x^3y^2 - 6x^3y + 3x^5y - 3x^4y$

9) product is $x^{3n} + 7x^{n+1} - 3x^n$

=============================================

Explanation:

For each of these questions, you'll multiply the term outside by each term inside the parenthesis. I'm using the distributive property.

In problem 5, we multiply the outer 7a by the following terms inside like so

$7a(5x^2-2xy+y^2-4xy)\\\\7a(5x^2-6xy+y^2)\\\\7a(5x^2)+7a(-6xy)+7a(y^2)\\\\35ax^2-42axy+7ay^2\\\\$

The other problems will have similar steps.

--------

A useful rule to keep in mind is that $a^b*a^c = a^{b+c}$

For example, $x^2*x^3 = x^{2+3} = x^5$

3 0

3 years ago

Write an equivalent expression to show the relationship of multiplication and addition 6 + 6 + 6

ira [324]

Answer:

6^3

Step-by-step explanation:

7 0

3 years ago

Phillip bought apples from the grocery for $2.20 per pound. If he bought 2.5 pounds of apples on Monday and 1.2 pounds of apples

vagabundo [1.1K]

Monday, 2.5×2.2=5.50
Tues, 1.2×2.2=2.64

5.50+2.64=8.14

He spent $8.14 total

6 0

4 years ago

Given f(x) = 5x - 3, find f(-2).

lukranit [14]

Answer:

-13

Step-by-step explanation:

Subsitude -2 to where x is and you get -1o then subtract by -3 and the total is -13

3 0

4 years ago

Read 2 more answers