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jek_recluse [69]
3 years ago
13

PLEASE HELP MEE WILL GIVE BRAINLIEST

Mathematics
2 answers:
gregori [183]3 years ago
7 0

slope (y2-y1)/(x2-x1)

m=(10000-4000)/(0-15)

m=6000/-15

m=-400

the helicopter descends 400 ft/min

Choice B

Advocard [28]3 years ago
6 0

Answer:

the slope is 400 so the answer is B

Step-by-step explanation:


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The base and the height of a triangle are multiplied by 5/4. Which of the following describes the
lions [1.4K]

Answer:

The option that describe the effect of the change is;

  • The perimeter is multiplied by 5/4

Step-by-step explanation:

The parameters from the question are;

The (scale) factor by which the base and the height of the triangle are multiplied = 5/4

By the constant proportion of their sides, the triangle before and the triangle obtained after the multiplication are similar

Let 'a' and 'b' represent the length of the base and the height of the triangle respectively, we have;

The area of the triangle, A₁ = 1/2 × a × b = a·b/2

With the application of the scale factor of 5/4, we have;

The area of the scaled triangle, A₂ = 1/2 × (5/4) × a × (5/4) × b = (5/4)² × a·b/2

Therefore, the scale factor of the area = (5/4)²

The scale factor of the perimeter = √(The scale facto of area)

∴ The scale factor of the perimeter = √(5/4)² = (5/4)

The scale factor of the perimeter = (5/4)

Therefore, the perimeter of the scaled triangle is obtained by multiplying the perimeter of the initial triangle by (5/4).

8 0
2 years ago
Read 2 more answers
Why did I get this question wrong?
Talja [164]

Answer:

9.25

Step-by-step explanation:

M₄ means the area using 4 rectangles with heights equal to the function evaluated at the midpoints.

The width of each rectangle is (4−0)/4 = 1.

The area of each rectangle is:

M₁ = (1) (1.12) = 1.12

M₂ = (1) (1.80) = 1.80

M₃ = (1) (2.69) = 2.69

M₄ = (1) (3.64) = 3.64

The total area is therefore:

M = 1.12 + 1.80 + 2.69 + 3.64

M = 9.25

7 0
2 years ago
The formula I = PRT where I = Interest, P = principal, R = rate, and T = time is used to calculate the amount of simple interest
andre [41]

Answer:

Step-by-step explanation:

as

I=PRT

SO

T=I/PR

6 0
2 years ago
Help me please I'm terrible at math
mr_godi [17]

Answer:

Step-by-step explanation:

ok first you make a equation which is 2x+1+5x-14

then you combine like terms so 2x+5x= 7x and -14+1=-13

so now the equation is 7x-13

but i need to know the full length of AC to finish it

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2 years ago
Surface area of a cylinder
djverab [1.8K]
You can take pi as 22/7 or 3.14

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