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Makovka662 [10]
2 years ago
10

Plz help I need help

Mathematics
1 answer:
laiz [17]2 years ago
5 0

Answer:

The answer is most likely -1 31/33

I have a hard time with fractions so I usually just go into my calculator and change it to a decimal. For example with -5 1/3 I would insert 1/3 into my calculator to change it to a decimal and then simply tack on the -5 to it. So in decimal form 1/3 is 0.333... so with the -5 added on its -5.333... Do the same for the other number and then divide. You will get -1.9393... all you have to do is go into your calculator and try out 11/12 or 31/33 to see which equals 0.9393... because those are the only options with a -1. In this case 31/33 equals 0.9393 s -1 31/33 is the answer

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Number 11 on my integrated geometry test
Mariulka [41]

Answer:

C. tan 48° = 16.3 / x

Step-by-step explanation:

With reference angle A

Tan A = BC / AC

Tan 48° = 16.3 / x

Hope it helps

3 0
3 years ago
6 The temperature at Wonder Lake is 12°F. During a storm, the temperature changes by -26°F. What is the temperature after the st
hodyreva [135]

Answer:

-14

Step-by-step explanation:

12-26

10-20=10

2-6=4

-14

I may have done this wrong

3 0
2 years ago
Simplify (x - square root 7)^2
svetoff [14.1K]

Answer:

x^2 + -2 sqrt(7) x + 7

Step-by-step explanation:

Expand the following:

(x - sqrt(7))^2

(x - sqrt(7)) (x - sqrt(7)) = (x) (x) + (x) (-sqrt(7)) + (-sqrt(7)) (x) + (-sqrt(7)) (-sqrt(7)):

x x - sqrt(7) x - sqrt(7) x - (-sqrt(7) sqrt(7))

(-1)^2 = 1:

x x - sqrt(7) x - sqrt(7) x + (sqrt(7))^2

x x = x^2:

x^2 - sqrt(7) x - sqrt(7) x + sqrt(7)^2

Cancel exponents. (sqrt(7))^2 = 7:

x^2 - sqrt(7) x - sqrt(7) x + 7

Combining like terms, sqrt(7) x (-1) + sqrt(7) x (-1) = -2 sqrt(7) x:

Answer:  x^2 + -2 sqrt(7) x + 7

3 0
3 years ago
Pls helpeddddddddddddddd
Dmitrij [34]

Answer:

B

Step-by-step explanation:

Remark

The easiest way to do this is to Substitute for y in the top equation.

2x + 4y = 18                         Divide by 2

2x/2 + 4y/2 = 18/2

x + 2y = 9

Substitute -3x + 2 in for y in the equation above

x + 2(-3x + 2) = 9

x - 6x + 4 = 9                    

Combine like terms on the left

-5x + 4 = 9                      

Subtract 4 from both sides.

-5x + 4-4 = 9- 4

-5x = 5

Divide by -5

-5x/-5 = 5/-5

x = - 1

That makes A and C incorrect.

y = -3x + 2

y = -3(-1) + 2

y = 3 + 2

y = 5

The correct answer should be (-1,5) which is B

7 0
3 years ago
In Exercises 1-20, find the midpoint M of the segment with the given endpoints.
EleoNora [17]
1.(-3/2,3)
2.(5/2,2)
3.(5,4)
4.(7/2,-1)
5.(9/2,-1)

I gave the midpoints what do you mean by the given endpoints
5 0
3 years ago
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