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Vikentia [17]
3 years ago
7

HELP I NEED THIS BEFORE 1:09 PLEASE HELPPP

Mathematics
1 answer:
gtnhenbr [62]3 years ago
3 0

Answer:

C. 85 degrees

Step-by-step explanation:

(set the equations equal to each other):

6x-25 = 4x+15

(solve for x):

2x = 40

x = 20

(plug in x back into the equation):

6(20)-25 = 120-25 = 95

(subtract your value from 180 degrees (180 degrees is a line)):

180-95 = 85 degrees

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If f(x) = 7 (x-1) + 8 , what is the value of f (1)
Flauer [41]

Answer:

f(1) = 8

Step-by-step explanation:

Step 1: Define

f(x) = 7(x - 1) + 8

f(1) = x = 1

Step 2: Substitute and evaluate

f(1) = 7(1 - 1) + 8

f(1) = 7(0) + 8

f(1) = 8

5 0
3 years ago
Mrs. Arnold took a survey of the types of pants her students were wearing. She collected the data below. What percent of her stu
SOVA2 [1]

Answer:

36%

Step-by-step explanation:

Jeans: 14

Shorts: 9

Capris: 2

Total number of students = Number of Jeans + Number of Shorts + Number of Capris

Total number of students = 14 + 9 + 2 = 25

% of students wearing shorts = Number of shorts / Total number of students * 100

% of students wearing shorts = 9 / 25    * 100 = 0.36  * 100 = 36%

4 0
3 years ago
If another line is perpendicular to the line shown on the graph, what must be its slope
Shtirlitz [24]

It's B

Slope is negative, the other must be positive due to m1 x m2 = - 1

m1 = -2/5

The diagram shows a gradient of -2/5. So, the

reciprocal of this valve to make - 1 is 5/2 (which is the - 2/5 flipped upside down, but positive)

-2/5 x 5/2 = - 10/10 (or - 1)

Thus, the perpendicular line to this has a gradient of 5/2.

Hope this helps!

4 0
2 years ago
After a new $28,000 car is driven off the lot, it begins to depreciate at a rate of 18.9% annually.
REY [17]

Answer:

C(t) = $28,000(0.811)^t  (Answer A)

Step-by-step explanation:

The value of the car is decreasing.  Thus, by the end of the first year of ownership, the car will have the value $28,000(1 -0.189)^1, where the "-0.189" represents DECAY instead of GROWTH.

Please use " ^ " to indicate exponentiation.

Then the desired formula is C(t) = $28,000(0.811)^t  (Answer A)

4 0
3 years ago
Need help with this question, please help!
lubasha [3.4K]

Answer:

x = 1 in

Step-by-step explanation:

We can use ratios to solve since they are similar triangles

6         6+x

----- = ---------

5          6

Using cross products

6*6 = 5*(6+x)

36 = 30+6x

Subtract 30 from each side

36-30 = 30-30+6x

6 = 6x

Divide each side by 6

6/6 = 6x/6

1 =x

6 0
3 years ago
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