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Irina-Kira [14]
2 years ago
14

Consider the triangles.

Mathematics
1 answer:
Aleksandr [31]2 years ago
5 0

Answer:

PRETTY SURE ITS D

Step-by-step explanation:

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I THINK its 0.4... I could be wrong

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2 years ago
W(t)W, left parenthesis, t, right parenthesis models the daily water level (in \text{cm}cmstart text, c, m, end text) at a pond
erastovalidia [21]

Answer:

t=152 days (in radians)

Step-by-step explanation:

W(t)models the daily water level at a pond in Arizona, t days after the hottest day of the year. (t is entered in radian)

W(t) = 15\cos\left(\dfrac{2\pi}{365}t\right) + 43

We want to determine the first time,t at which the water level is 30cm.

When W(t)=30

30 = 15\cos\left(\dfrac{2\pi}{365}t\right) + 43\\30-43=15\cos\left(\dfrac{2\pi}{365}t\right)\\-13=15\cos\left(\dfrac{2\pi}{365}t\right)\\-\dfrac{13}{15} =\cos\left(\dfrac{2\pi}{365}t\right)\\cos^{-1}(-\dfrac{13}{15})=\dfrac{2\pi}{365}t\right)\\cos^{-1}(\dfrac{13}{15})=\dfrac{2\pi}{365}t\right)

cos^{-1}(\dfrac{13}{15})=\dfrac{2\pi}{365}t\right)\\t=\dfrac{365}{2\pi}\cdot cos^{-1}(\dfrac{13}{15})\\t=152.16\\\approx 152 days \text{   (to the nearest whole day)}

6 0
2 years ago
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Explain how we use the distributive property in math:
vodomira [7]

Answer:

To “distribute” means to divide something or give a share or part of something. According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.

<h3>Please mark as brainliest</h3>
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2 years ago
What polynomial has roots of -4, 1, and 6?
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X^3-3x^2-22x+24
the first option is the answer

solution: (x + 4)(x - 1)(x -6) = (x^2 - x + 4x -4)(x - 6)
(x^2 + 3x -4)(x - 6) = x^3 -6x^2 + 3x^2 - 18x - 4x + 24 = x^3 - 3x^2 - 22x + 24
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3 years ago
What will be the compound interest p=25000 r= 12% p.a for 5 years
DanielleElmas [232]

Answer:

Step-by-step explanation:

I= PRT ÷ 100

P is principal

R is rate (%)

T is time (years)

I = (25000 × 12 × 5) ÷ 100

= 15000

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2 years ago
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