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3 years ago

15

Awnser in the picture btw this question is hard so work carefully

1 answer:

Triss [41]3 years ago

8 0

Answer:

5 10

2 4

Step-by-step explanation:

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What is the value of this expression when x= -6 and y= -1/2? 4(x2+3)-2y

Ostrovityanka [42]

Answer:y=-10

Step-by-step explanation:

y=-1/2 4(6(2)+3)-2y

+2y 6(2) +2y

3y=-1/2 4(12+3)

multiplie 4 times 12 and 4 times 3

3y=-1/2 48+12

add 48 and 12

3y=-1/2 60

divide -1/2 and 60

3y/3=-30/3

y=-10

3 0

3 years ago

Explain how using the expanded form 4,000 + 30 + 2 can help find the product of 5 and 4,032

belka [17]

5*4032=5*(4000+30+2)=5*4000+5*30+5*2, it helps to break down the number to smaller bits,

8 0

3 years ago

Which of the following represents 1% of 300<br><br> •1<br> •3<br> •3/100<br> •30

ivanzaharov [21]

Answer:

it's •3

Step-by-step explanation:

1/100 × 300/1 =3

100 into 300 is 3

then equal to 3/1

any number over one is it self

3 0

3 years ago

The length of a field in yards is a function f(n) of the length n in feet. Write a function rule for th

lara [203]

Answer:

$f(n) = \frac{n}{3}$

Step-by-step explanation:

Recall that:

$3ft = 1 \: yd$

This implies that:

$6ft = 2yds$

$9ft = 3yds$

In general:

$n \: ft = \frac{n}{3} \: \: yds$

We can therefore write the function rule:

$f(n) = \frac{n}{3}$

3 0

3 years ago

A leaking pond loses 20 gallons of water in 49 hours. How many gallons of water will it lose in 5 hours? Round to one decimal pl

White raven [17]

Answer:

12.25

Explanation

49/20 <em><u>(which is the same as (</u></em><em><u>4</u></em><em><u>9</u></em><em><u>÷</u></em><em><u>2</u></em><em><u>0</u></em><em><u>))</u></em><em><u> </u></em>=2.45

<em><u>Multiply</u></em><em><u> </u></em><em><u>2</u></em><em><u>.</u></em><em><u>4</u></em><em><u>5</u></em><em><u> </u></em><em><u>by</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>amount</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>hours</u></em><em><u> </u></em><em><u>(</u></em><em><u>5</u></em><em><u>)</u></em><em><u> </u></em>

$2.45 \times 5 = 12.25$

=12.25

5 0

3 years ago

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