1 year ago

Which of the following expressions can be used to calculate the perimeter of a square with side length 5 inches?

Mathematics

1 answer:

Viktor [21]1 year ago

3 0

Answer:

...............................................................................................5x4

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Simplify the expression: 7x2–5x2 i need the answer quickly

soldier1979 [14.2K]

Answer:

2x^2

Step-by-step explanation:

combine like terms, and do the subtraction!

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2 years ago

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EXPONENTS: What is the value of 7 cubed? A. 14 B. 21 C. 49 D. 343

quester [9]

Answer:

Step-by-step explanation:

7*7=49

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3 years ago

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Find the solutions of the quadratic equation -9c² +2 +3 = 0.

Tresset [83]

Given that,

An equation : -9c² +2c +3 = 0

To find,

Find the value of x.

Solution,

We have, -9c² +2c +3 = 0

We can solve it using the formula as follows :

$x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

Here, a = -9, b = 2 and c =3

Put the values,

$c=\dfrac{-2\pm \sqrt{(2)^2-4(-9)(3)}}{2(-9)}\\\\c=\dfrac{-2+\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}, \dfrac{-2-\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}\\\\c=-0.47, 0.69$

So, the solution are -0.47 and 0.69.

8 0

3 years ago

Klara has 3 bowls. She puts 6 peaches in each bowl. She has 4 peaches left over. How many peaches did Klara start with in all?

shepuryov [24]

Answer:

22 peaches

Step-by-step explanation:

I hope this help! :)

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2 years ago

What is( -10a^5-2a^5+14a^5)(12a^5-6a-10a^3) using distributive and the area model.

Delvig [45]

$(-10a^5-2a^5+14a^5)(12a^5-6a-10a^3) \\ = 2a^5 (12a^5-6a-10a^3) \\ = 24a^{10} - 12a^6 - 20a^8$

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3 years ago