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alukav5142 [94]
3 years ago
12

Christian randomly select students from his grade to read a masters as easy moderate or difficult of the students he surveyed 13

said the test was easy 11 read it as moderate three found it difficult assuming that all students took the same test how many of the 162 total students and Christians grade would probably read the test something other than easy
A. 27
B.78
C.84
D.126
Mathematics
2 answers:
kakasveta [241]3 years ago
5 0
C-84
that help so much thank yo
Kryger [21]3 years ago
4 0

Answer:

C. 84.

Step-by-step explanation:

27 students in his grade took the test. 14 did not find it easy. 14/27 is 0.52. 0.52 times the 162 total students is 84.

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Write an equation of the line passing through the point A(6,−1)A(6,−1) that is perpendicular to the line y = −2x+8y = −2x+8.
Olegator [25]
So the equation has to pass through (6,-1) and be perpendicular to y = -2x + 8.
The slope is -2, and to get the slope of a line perpendicular to another line you have to find the negative reciprocal of that slope. That means -2 is equal to 
-2/1, and if you flip those numbers and find the opposite of that number making it positive, the slope of a line perpendicular to it is 1/2.
But the line also has to pass through (6,-1), so we have to find the y-intercept of the new line.
To do that, you multiply 6(the x) by the 1/2(the slope) and get 3. Then you subtract 3(previous answer) from -1(the y) and get -4. That means the y-intercept is -4!
All that's left is to build the equation with this information. The equation is: 
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Hope this helps!
3 0
3 years ago
Rewirte each expression using distribibutive property 10+12
oksian1 [2.3K]

Answer:

2(5 + 6)

I hope this helps!

6 0
3 years ago
Read 2 more answers
X°+(x+30)=180°<br>I need answer​
djyliett [7]

Answer:

210 + -1x

Step-by-step explanation:

Simplifying

X + (x + -30) = 180

Reorder the terms:

X + (-30 + x) = 180

Remove parenthesis around (-30 + x)

X + -30 + x = 180

Reorder the terms:

-30 + X + x = 180

Solving

-30 + X + x = 180

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '30' to each side of the equation.

-30 + X + 30 + x = 180 + 30

Reorder the terms:

-30 + 30 + X + x = 180 + 30

Combine like terms: -30 + 30 = 0

0 + X + x = 180 + 30

X + x = 180 + 30

Combine like terms: 180 + 30 = 210

X + x = 210

Add '-1x' to each side of the equation.

X + x + -1x = 210 + -1x

Combine like terms: x + -1x = 0

X + 0 = 210 + -1x

X = 210 + -1x

Simplifying

X = 210 + -1x

7 0
2 years ago
Walter is helping to make cookies for a basketball tournament. He's made 15 cookies so far. His coach asked him to make at least
seraphim [82]

Answer: First Option

Walter needs to make at least 5 more cookies but no more than 40

5 \leq x \leq 40

Step-by-step explanation:

If we call x the number of cookies that Walter needs to make, then we know that the amount of cookies will be:

x +15

Then this amount must be greater than or equal to 20 and must be less than or equal to 55 then.

x + 15 \geq20 and x + 15 \leq55

This is:

20 \leq x + 15 \leq 55

We solve the inequality for x.

20-15 \leq x + 15-15 \leq 55-15\\\\5 \leq x \leq 40

Then the amount of cookies that Walter must make must be greater than or equal to 5 and less than or equal to 40

7 0
3 years ago
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If
Dmitry [639]

Answer:

Step-by-step explanation:

You would have to do the distributive property and thats how you get your answer.

3 0
3 years ago
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