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3 years ago

Help plz Help Help Help

Mathematics

2 answers:

ycow [4]3 years ago

6 0

Answer:

c. -45

Step-by-step explanation:

First we square -3

$-5(-3)^{2}$

$-5(-3*-3)$ (a negative times a negative is positive)

$-5(9)$

Then we multiply -5 by 9

$-5(9)$ = -45

We solve the problem in this order because exponents come before multiplication (PEMDAS).

So our final answer is -45

jek_recluse [69]3 years ago

5 0

The answer is -45 so C.

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Which ordered pair is a solution to the system of linear equation? 2x+ 3y=6 <br> -3x+5y=10

allochka39001 [22]

Answer:

Step-by-step explanation:

2x + 3y = 6________( 1 )

-3x + 5y = 10_______( 2 )

( 1 ) × 3 ---- 6x + 9y = 18_____( 3 )

( 2 ) × 2 ---- -6x + 10y = 20_____( 4 )

$(4) + (3) \\ 6x + 9y + ( - 6x + 10y) = 20 - 18 \\ 6x + 9y - 6x - 10y = 2 \\ y = 2$

y = 2 ,

$2x + 3y = 6 \\ 2x + 3(2) = 2 \\ 2x + 6 = 2 \\ 2x = 2 - 6 \\ 2x = - 4 \\x = \frac{ - 4}{2} \\ x = ( - 2) \\$

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2 years ago

Tommy is using a bucket to collect nuts from a nut tree. He then dumps the bucket into a barrel for shipping of the nuts. He not

NISA [10]

Answer:

3/8 bucket

Step-by-step explanation:

Given that 1/4 bucket of nuts fills 2/3 of the barrel

PART A

<u>To find the amount of nuts that fills entire basket we can put this as:</u>

1/4 bucket → 2/3 barrel
x bucket → 1 barrel

<u>Use cross-multiplication to find the value of x:</u>

x×2/3 = 1×1/4
x = 1/4 ÷ 2/3
x = 1/4×3/2
x = 3/8 bucket

PART B

Using the bucket to barrel ratio to solve the problem. Having the number of required buckets as x and considering full barrel as 1 helps to find the value of x.

6 0

3 years ago

Can anybody please help?

seropon [69]

Area of the shaded region = Area <span>of a square - Area of a circle
</span>
Side of a square = 2r
Area of a square = (2r)² = 4r²

Area of a circle = πr²

Area of the shaded region = 4r² - πr² = r²(4-π)

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2 years ago

How to solve 18 divided by 4464

DedPeter [7]

Answer:

$18 \div 4464$