3 years ago

I’m confused on this one

Mathematics

1 answer:

Vinil7 [7]3 years ago

8 0

Here is a general rule for sin and cos

sin x = cos (90 - x)

cos x = sin (90 - x)

These rules are complementary, so for your problem

cos 75 = sin (90 - 75) = sin 15 as your answer.

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Im having such a hard time solving this plz help

expeople1 [14]

Answer: 38 Bags

Step-by-step explanation:

Since there are 19 people and each person needs 24 beads, the total number of beads needed is 19*24=456. Then if this total must be split up into groups of 12 beads, the answer would be 456/12=38.

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3 years ago

9times 2/3 and than in simplest form

Alex17521 [72]

18/3 then it will be 6

7 0

3 years ago

An equation has solutions of m = –5 and m = 9. Which could be the equation?

patriot [66]

Answer:

m² - 4m - 45 = 0

Step-by-step explanation:

(m + 5)(m - 9) = 0

m² + 5m - 9m - 45 = 0

m² - 4m - 45 = 0

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3 years ago

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PROBLEM 2 The height of a golf ball in feet can be determined using the formula h(t) = -16t2 + 100x , where t is the number of s

wolverine [178]

Answer:

Step-by-step explanation:

Given the height of a golf ball in feet modelled by the formula h(t) = -16t² + 100x where t is in seconds, we are to find the height of the golf after 2.5 seconds. To do that we will simply substitute t = 2.5secs into the formula given;

$h(t) = -16t^2 + 100x\\\\h(2.5) = -16(2.5)^2 + 100(2.5)\\\\h(2.5) = -16(6.25) + 250\\\\h(2.5) = -100+250\\\\h(2.5) = 150\\\\$

Hence the height of the golf after 2.5 seconds is 150ft.

8 0

3 years ago

What is y=2(x+3)^2 -4 in standard form

romanna [79]

here hope this helps :)

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3 years ago

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