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2 years ago

9

Please help need someone’s help ASAP

2 answers:

Cloud [144]2 years ago

6 0

The coordinates of Z are (0, -t).

This is because ordered pairs are written in the form (x,y), where the first number represents the number of units the point has moved along the x axis and the second number represents the number of units the point has moved along the y axis. Point Z is on the y axis, which means it has moved 0 units along the x axis (it has an x value of 0). Its y value is -t because it has the same y value as the point directly above it, except it is negative (it moved down instead of up). Therefore, the answer is (0,-t).

Hope this helps!

xxTIMURxx [149]2 years ago

5 0

your answer is D

hope this helps

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antiseptic1488 [7]

A) (0,1), (1,-2), (-1,4), (2,-5)
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2 years ago

Bill’s car gets 30 miles to the gallon. For every gallon of gas it consumes, his car runs 30 miles. Use this information to dete

pshichka [43]

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3 years ago

X^+5x+8=0<br> What is the answer to this question

ira [324]

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3 years ago

Miss lead says that if y varies directly with x and y=15 when x=-3, then y=-20 when x=4. Is she correct? Answer in complete sent

gizmo_the_mogwai [7]

Answer:

Yes, she is correct.

Step-by-step explanation:

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15 = k*-3

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So the equation of variation is

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1 year ago

Cna i get some help with dis plz

Tomtit [17]

Let $b_1,b_2,\ldots,b_{20}$ be the 20 marks of the boys, and $g_1,g_2,\ldots,g_{10}$ be the 10 marks of the girls.

We know that the global mean was 70, meaning that

$\dfrac{b_1+b_2+\ldots+b_{20}+g_1+g_2+\ldots+g_{10}}{30}=70$

Multiplying both sides by 30 we deduce that the sum of the scores of the whole classroom is

$b_1+b_2+\ldots+b_{20}+g_1+g_2+\ldots+g_{10}=2100$

By the same logic, we work with the marks of the boys alone: we know the average:

$\dfrac{b_1+b_2+\ldots+b_{20}}{20}=62$

And we deduce the sum of the marks for the boys:

$b_1+b_2+\ldots+b_{20}=1240$

Which implies that the sum of the marks of the girls is $2100-1240=860$

And finally, the mean for the girls alone is

$\dfrac{860}{10}=86$

6 0

2 years ago