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3 years ago

Heloo hello HELPP FAST OR ILL DIE

Mathematics

1 answer:

Pachacha [2.7K]3 years ago

4 0

Answer:

f(-7)= 21

Step-by-step explanation:

-(-7)^2-10(-7)

-7^2-10×-7

-49-10×-7

-49-(-70)

-49+70

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Pleaseee helpppp:)))

matrenka [14]

Answer:

<h2>Option B:</h2><h3>112 families </h3>

Step-by-step explanation:

Given,

No. of families = 75

Out of 75 no. of families had cars = 42

Out of 1, no. of families can have cars

$= \frac{42}{75}$

Therefore, 

Out of 200 families, no. of families had cars

$= 200 \times \frac{42}{75}$

$=200 \times \frac{14}{25}$

= 8 × 14

= 112

Hence, 

option B is correct as 112 families have cars out of 200 families (Ans)

5 0

3 years ago

Caroline spent $41.00 on groceries after using coupons and store discounts. Without the coupons and store discounts, the groceri

AlexFokin [52]

Answer:

18% trust me i got you bro

Step-by-step explanation:

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3 years ago

Find the amplitude and period of y = 5 cos (4x)

dezoksy [38]

Answer: amplitude is 5 and Period is pi/2

Step-by-step explanation:

yes ‍♀️

3 0

2 years ago

Which is equivalent to b6/b2

lakkis [162]

Answer:

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6 0

3 years ago

An oil refinery is located on the north bank of a straight river that is 2 km wide. A pipeline is to be constructed from the ref

Deffense [45]

To minimize the cost, we take the straight distance from the refinery to the other side of the river as 2 km. Also, the 7 km will be the distance that has to be traveled by the pipeline in land. The total cost, C, is therefore,
total cost = (2 km)($800,000/km) + (7 km)($400,000 /km)
total cost = $4,400,000
Thus, the total cost of the pipeline is approximately $4,400,000.00.

4 0

3 years ago