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Stels [109]
3 years ago
13

ILL GIVE BRAINLIEST!! Find y. Give your answer in the simplest form. 45° y = [?]

Mathematics
1 answer:
ehidna [41]3 years ago
8 0

Answer:

y = 2

Step-by-step explanation:

Using the sine ratio and the exact value

sin45° = \frac{1}{\sqrt{2} } , then

sin45° = \frac{opposite}{hypotenuse} = \frac{\sqrt{2} }{y} = \frac{1}{\sqrt{2} } ( cross- multiply )

y = (\sqrt{2} )² = 2

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If h(x) =2x^2-3x, find h(-6)
nekit [7.7K]
90. 

You can get this by plugging into the equation. 

h(-6) = 2(-6)^2 - 3(-6)
h(-6) = 72 + 18
h(-6) = 90
6 0
3 years ago
An ice cream cone is made of a cone shape and half a sphere shape. Explain how you could find the volume of the entire ice cream
kondor19780726 [428]
Call the radius r and the height of the cone h.  The formula for the volume of a cone is r^2*h*pi/3, and the formula for the volume of a sphere is 4r^3/3, so half of a sphere has volume 2r^3/3.  Adding these, our answer is:

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4 0
3 years ago
What is 55 subtracted by 65
vivado [14]

Answer:

10

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
let f(x) = 2x^2+5-e^x , use the intermediate value theorem to show that the f(x) has a root in the interval [3,4]?
sergiy2304 [10]

9514 1404 393

Answer:

  sign(f(3)) ≠ sign(f(4))

Step-by-step explanation:

The intermediate value theorem tells you that a sign change between f(a) and f(b) means there is a root in the interval [a, b].

Here, we have f(3) ≈ +2.9 and f(4) ≈ -17.6, so there is a root in [3, 4].

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The root is approximately 3.27560108885.

7 0
3 years ago
8.896 divided by 3.2=???????
Reptile [31]
Answer:
= 0.359
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Solution:Change the divisor 8.896 to a whole number by moving the decimal point 3 places to the right. Then move the decimal point in the dividend the same, 3 places to the right.

We then have the equation:
8896 into 3200 equals 0.359

5 0
4 years ago
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