Cos (a + 60 ) + Cos (a-60)

Mathematics

1 answer:

Nadusha1986 [10]2 years ago

8 0

Answer:

the answer is 0.9988747935

hope that works!!

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Tonisha has a lemonade stand. She has $25 in expenses and wants to make at least $55 per day.

Novosadov [1.4K]

Hello!

Your answer is:

x-31 ≥ 66⇒x ≥ 97!

Hopefully this helps! Please correct me if im wrong! :C

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3 years ago

Adam has 16.45 kg of flour,and he uses 6.4 kg to make hot cross buns. The remaining flour is exactly enough to make 15 batches o

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If Adam has 16.45 kg of flour and he uses 6.4 kg to make hot cross buns, then he has left

16.45 - 6.4 = 10.05 kg of flour.

If Adam wants to use the remaining flour to make 15 batches of scones, then each batch of scones requires

10.05 : 15 = 0.67 kg of flour.

Answer: each batch of scones requires 0.67 kg of flour.

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3 years ago

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You flip a coin eight times. find the number of possible outcomes in the sample space.

nika2105 [10]

2( coin faces) 8( number of times)

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3 years ago

Sara plotted the locations of the trees in a park on a coordinate grid. She plotted an oak tree which was in the middle of the p

padilas [110]

Answer: $10.2\ yards$

Step-by-step explanation:

<h3> "Sara plotted the locations of the trees in a park on a coordinate grid. She plotted an oak tree, which was in the middle of the park, at the origin. She plotted a maple tree, which was 10 yards away from the oak tree, at the point (10,0) . Then she plotted a pine tree at the point (-2.4, 5) and an apple tree at the point (7.8, 5) What is the distance, in yards, between the pine tree and the apple tree in the</h3><h3>park?"</h3>

For this exercise you need to use the following formula, which can be used for calculate the distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

In this case, you need to find distance, in yards, between the pine tree and the apple tree in the park.

You know that pine tree is located at the point (-2.4, 5) and the apple tree is located at the point (7.8, 5).

So, you can say that:

$x_2=-2.4\\x_1=7.8\\\\y_2=5\\y_1=5$

Knowing these values, you can substitute them into the formula and then evaluate, in order to find the distance, in yards, between the pine tree and the apple tree in the park.

This is:

$d=\sqrt{(-2.4-7.8)^2+(5-5)^2}=10.2\ yards$