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Musya8 [376]
3 years ago
10

Given cos A = -.45 find angle A in degrees. Round your answer to the nearest hundredth.

Mathematics
1 answer:
Ivan3 years ago
5 0
Is cosA,
0.45
i don't get it
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12x - 5 = 8x - x + 50<br> Help please show work and check the solution
Inga [223]

Answer:

x = 11

Step-by-step explanation:

12x - 5 = 8x - x + 50 \\ 12x - 5 = 7x + 50 \\ 12x - 5 - 7x = 7x + 50 - 7x \\ 12x - 7x - 5 = 50  \\ 5x - 5 = 50 \\ 5x - 5 + 5 = 50 + 5 \\ 5x = 55 \\ x = 11

and check:

12(11) - 5 = 8(11) - (11) + 50 \\ 132 - 5 = 77 + 50 \\ 127 = 127

3 0
3 years ago
Abner wants to create a shopping budget where he spends less than $80 per month on clothes. He also wants to spend at least thre
strojnjashka [21]

Answer:

D) Abner can spend $60 per month on school clothes and $20 per month on gym clothes and stay within his budget.

Step-by-step explanation:

In the problem it states that Abner will spend 3 times more on (s)school clothes than (g) gym clothes.

So it would appear as s ≥ 3g.

If we plug in $60 as s (school clothes) and $20 as g (gym clothes), the statement is true.

60 ≥ 3(20)

60 ≥ 60. These numbers make the linear system true.

If you have trouble with this, an easy way to find this answer is simply creating the linear system that represents the problem, (he will buy 3 times more school clothes than gym clothes) s ≥  3g and plug in each variable from the answer choices until you find the variables that make the linear system true.


6 0
3 years ago
Read 2 more answers
The graph shows the function y=3x-1. What are the cordinates of intercepts
scZoUnD [109]

Answer:

y \: intercept  : when \: x = 0 \\ y = (3 \times 0) - 1 =  - 1  \\  =  >  (0, - 1) \\ x \: intercept : when \: y = 0 \\ 0 = 3x - 1 \\ x =  \frac{1}{3}  \\  =  > ( \frac{1}{3} ,0) \\ intercepts : (0, - 1) \: and \:  ( \frac{1}{3} ,0)

8 0
3 years ago
Will is w years old.<br> Ben is 3 years older.<br> write an expression, in terms of w, for bens age
liubo4ka [24]
W + 3 = Ben's age or 3 + w = Ben's age, either way.
6 0
3 years ago
Given that a = 10cm and b = 27cm work out theta rounded to one decimal place?
klemol [59]

Answer:

28.8

Step-by-step explanation:

A squared plus b squared equals c squared.

3 0
3 years ago
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