3 years ago

Find cos(B) A.) 7/3 B.) 3/7 C.) 3/58 D.) 7/58

Mathematics

1 answer:

Alex Ar [27]3 years ago

7 0

A. 7/3
HOPE IT HELLS U!!!!

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the sum of two numbers is -17 one of the numbers is seven less than the other what are the two numbers?

dmitriy555 [2]

Answer:

-12 and -5

Step-by-step explanation:

a+b=-17

b-a=7

b=7+a

a+7+a=-17

2a+7=-17

2a=-17-7

2a=-24

a=-12

-12+b=-17

b=-17+12

b=-5

so a and b are -12 and -5 respectively

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Dorothy and Rosanne are baking cookies for a party. Working alone, Rosanne can finish the cookies in 6 hours. Dorothy can finish

garik1379 [7]

Answer:

It will take them 3.43 hours.

Step-by-step explanation:

Let T denote the total cookies that need to be cocked. Observe that:

If Rosanne finishes the cookies in 6 hours, that means that she can make $\frac{T}{6}$ cookies per hour.
If Dorothy finishes the cookies in 8 hours, that means that she can make $\frac{T}{8}$ cookies per hour.

Then, by 1) and 2), if they work together would we able to make

$\frac{T}{6}+\frac{T}{8}=\frac{8T+6T}{48}=\frac{14}{48}T=\frac{7}{24}T$

cookies per hour.

Therefore, in order to finish the T cookies they will need $\frac{24}{7}\approx3.43 hours$

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4 years ago

Kim's softball team is playing in the championship game. They are losing by a score of 17 to 6. There are 4 innings to go. Kim w

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(how many more needed) divided by (how many innings left)
17-6=11
4 left

11/4=2.75

needs to score 2.75 per inning (even though you can't score 0.75 point)

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3 years ago

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write and equation to solve for x your only writing the equation will mark brainiest I've got five more questions to go if anybo

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The equation you use would be 3x+10 = 3x-28

they aren’t linear pairs so it cannot equal 180

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4 years ago

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The sum of 3 times a number and 7 is equal to 5. (translate into an equation)

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Answer: