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3 years ago

PLEASE HELP ME 40 POINTS!!!

Mathematics

1 answer:

liraira [26]3 years ago

4 0

Answer:

Step-by-step explanation:

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Write the equation of the line that passes through the points 3,3 4,-1

Vinil7 [7]

It would be y= -4x+15

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3 years ago

A certain forest covers an area of 4900 km². Suppose that each year this area decreases by 7%. What will the area be after 8 yea

RUDIKE [14]

Answer:

area after 8 years is 2156km²

Step-by-step explanation:

Area of forest=4900 km²

decrease in area in 1 year=4900km² × 7%

decrease in area in 1 year= 343km²

decrease area in 8 years=343km² × 8

=2744km²

Remaining area= (4900-2744)km²

=2156km²

Note:If you have any question about it please ask.

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3 years ago

I need some help with my math

katrin [286]

The missing side is 15

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3 years ago

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How much will 25 pounds of bananas cost if they are $0.59/pound

Nadusha1986 [10]

If you times 25 by .59 you'll get 14.75 so that is probs the answer

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4 years ago

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To work out the area in m² of material required for a pair of curtains, a seamstress squares the height of the window in m and a

Kisachek [45]

Answer:

a. Area = 1.94m²

b. Area = (p² + 0.5)m²

c. Height = 1.5m

Step-by-step explanation:

Given

Let H represents Height and A represents Area

From the first and second statements, we have that:

$A = H^2 + 0.5$

a. Calculating Area When Height = 1.2

$A = H^2 + 0.5$

Substitute 1.2 for H

$A = 1.2^2 + 0.5$

$A = 1.44 + 0.5$

$A = 1.94$

Hence, the area is 1.94m²

b. Calculating Area When Height = p

$A = H^2 + 0.5$

Substitute p for H

$A = p^2 + 0.5$

Hence, the area is (p² + 0.5)m²

c. Calculating Height When Area = 2.75m²

$A = H^2 + 0.5$

Substitute 2.75 for A

$2.75 = H^2 + 0.5$

Subtract 0.5 from both sides

$2.75 - 0.5 = H^2 + 0.5 - 0.5$

$2.75 - 0.5 = H^2$

$2.25 = H^2$

Take Square Root of both sides

$\sqrt{2.25} = \sqrt{H^2}$

$\sqrt{2.25} = H$

$1.5 = H$

$H = 1.5$

Hence, the height is 1.5m

5 0

3 years ago