Using the right triangle below find the cosine of angle A.

Answers

Answer 1

Answer:

For the given triangle, the cosine of angle A equals $(1)/(2)$ .

Step-by-step explanation:

Step 1; In the given triangle, the opposite side has a length of 9 units, the adjacent side has a length of 3√3 units while the hypotenuse of the triangle measures 6√3 units. To calculate the cosine of angle A we divide the adjacent side by the hypotenuse side.

cos A = $(adjacent side)/(hypotenuse)$ .

Step 2; Length of the adjacent side = 3√3 units.

Length of the hypotenuse side = 6√3 units.

cos A = 3√3 / 6√3

cos A = $(1)/(2)$ .

To check we also have A = 60° and cos 60° = $(1)/(2)$ .

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The jones family is landscaping their yard. Their yard is 160 square feet & one side is 10 feet long. What is the length of the other side of the yard?

Answers

all u do is 160/10 and get 16. you do this becuase its area divided by length becuz length time width equals area plz mark me as brainlest

What are the Combine like terms 7a+4b-3a-2b

Answers

- Could combine numbers that have the same variable
- Numbers with no variable.

7a - 3a = 4a
4b - 2b = 2b

4a + 2b is the final answer

6. The teacher gave this pattern to the class. the first term is 5 and the rule is add 4, subtract i. Each student says one number. The first student Victor is line. What number should Victor say?

Answers

He should say 36. The first term is 5 so make sure not to add it again. First its 5 plus 4 minus 1 which is nine. Then is 9 plus 4 minus 1 which is 12. And so on.

All of my points to anyone who can help me with these..! Marking Brainliest as well

Answers

Answer:

1. 186

2. 240

Step-by-step explanation:

1. D =3w+60

D =3(42)+60

D =186

2. I =48t

I =48(5)

I =240

Answer:

Question one 186

Question two 240

Step-by-step explanation: You multiply the variable (the letter) by the number that the person is using

4x+8=7 I got -1/4 but don't know if you drop the negative when dividing

Answers

4x+8=7
You minus 8 from each side
4x=-1
Divide -1 by 4x
The answer is $- (1)/(4)$ or -.25
You leave the negative
If there is only one negative number(-1 being the case here) then its negative
If there are two negatives, its a positive
If there are two positive numbers, its positive

$4x+8=7\ \ \ \ | subtract\ 8\n\n4x=-1\ \ \ \ | divide\ by\ 4\n\nx=-(1)/(4)\n\nSolution\ is\ x=-(1)/(4).$

Susan bought a bike for $93.75. If the bike was originally $125, what was the percent of discount?

Answers

Answer:

The discount is 25%

Step-by-step explanation:

Divide 93.75 by 125 = 75%

however, that is not the discount.

it is the difference of the 100 and the discount.

to find the discount, you do 100 - 75 = 25

Other Questions

I need help on #3 please

Which of the following statements are true regarding functions?Check all that apply.A. The horizontal line test may be used to determine whether afunction is one-to-one.B.A sequence is a function whose domain is the set of rationalnumbers.C. A function is a relation in which multiple values of the inputvariable are paired with at least one of the output variable.D.The vertical line test may be used to determine whether a relationis a function.

3/4 + 1/8= with simplest form.

What's the volume of a sphere if d= 1.68 in