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lakkis [162]
4 years ago
15

Choose the equations that are equvialent. Select all that apply.

Mathematics
1 answer:
Fed [463]4 years ago
6 0

Answer:a,b,c

Step-by-step explanation:

The are all equivalent

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Jake scored 269 points on three math tests. to get an a for the class, his average number of points on four tests must be no les
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91 m0re points an 360/4 is 90 so total points needed is 360 the subtract 360 by 269 and get 91
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3 years ago
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ASAP HELP ME IM STUCK​
salantis [7]

Answer:

x=2

SK=21

KY=13

SY=34

Step-by-step explanation:

finding x:

SK+KY=SY

13x-5+2x+9=36-x

get x by itself

13x+2x+1x=36+5-9

simplify

16x=32

divide by 16 on both sides

x=2

Now plug in x (2) into the separate formulas

SK:

13(2)-5

26-5

21

KY:

2(2)+9

4+9

13

SY:

36-(2)

34

To double check your answer plug in what you got

SK+KY=SY

21+13=SY

34

and we got 34 above so this is correct.

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3 years ago
Ruth Bader Ginsburg is what type of public official? A.mayor B. representative C. senator D. Supreme Court Justice
LiRa [457]
It’s D she was a Supreme Court justice
7 0
3 years ago
Compare |-5| to the |-10|. which of the following is true?
Zanzabum

Answer:

|-10| is greater than |-5|

Step-by-step explanation:

Absolute value must be positive.

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6 0
3 years ago
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Which of the following would be an acceptable first step in simplifying the expression sin x/ 1-cos x
RideAnS [48]

the question does not present the options, but this does not interfere with the resolution


we have

sin x/ (1-cos x)


we know that

sin²x+cos²x=1-----------> sin²x=1-cos²x

and

difference of squares

(a+b)*(a-b)=a²-b²

so

The idea is to make the difference of squares (1-cos²x)in denominator.so

multiply the expression by (1+cos x)/(1+cos x)

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=[sin x*(1+cos x)]/[ (1-cos²x)]

=[sin x*(1+cos x)]/[ sin²x]

=(1+cos x)/sin x

=(1/sin x)+(cos x/sin x)

=csc x+cot x


therefore


the answer is

the first step is multiply the expression by (1+cos x)/(1+cos x)

6 0
3 years ago
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