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3 years ago

COULD A KIND SOUL PLEASE PLEASE PLEASE HELP ME???!!!!!!!!!!!

Mathematics

1 answer:

horrorfan [7]3 years ago

5 0

Answer:

R=(-1,2), T=(-7,4) S=(-2,8)

Step-by-step explanation:

The line y=x is a diagonal line veering to the left, since I can't draw it I'll give you a link on an actual digram of a triangle getting reflect across y=x. But, I just like to do this, if for example Q=(10,-3), I just exhange the negative sign to the left, so it would equal Q"=(-10,3) (Q" means the new modified Q).

The link thingy=https://www.quora.com/What-does-it-mean-to-reflect-over-the-y-x-line

Hopes this helps (:

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PLEASE CHECK ANSWER!! <br> Which relationship shows a quadratic variation?

Vlada [557]

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4 years ago

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An index that is a standardized measure used in observing infants over time is approximately normal with a mean of 90 and a stan

weqwewe [10]

Answer:

The proportion of children that have an index of at least 110 is 0.0478.

Step-by-step explanation:

The given distribution has a mean of 90 and a standard deviation of 12.

Therefore mean, $\mu$ = 90 and standard deviation, $\sigma$ = 12.

It is given to find the proportion of children having an index of at least 110.

We can take the variable to be analysed to be x = 110.

Therefore we have to find p(x < 110), which is left tailed.

Using the formula for z which is p( Z < $\frac{x - \mu}{\sigma}$ ) we get p(Z < $\frac{110 - 90}{12}$ = 1.67).

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Using the Z - table we can calculate p(Z < 1.67) = 0.9522.

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Therefore the proportion of children that have an index of at least 110 is 0.0478

8 0

3 years ago

Please help!!!!!!!!!!!!

blagie [28]

Point-slope form is y - y1 = m (x + x1)

First you need to find m [slope] by subtract y2 and y1 and divide it by the outcome of x2 - x1

13 - (-9) = 22
-2 - 9 = -11
22/-11 = -2

Plug in the first point (as instructed) into the equation.

y - (-9) = -2 (x - 9)

Simplify the beginning.

y + [9] = [-2] (x + [-9])

(The brackets are the fill in the blanks)

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3 years ago

Six by the power of 2×3

Sergio039 [100]

Answer:

46,656

Step-by-step explanation:

6^2x3=

6^6=

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2 years ago

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harkovskaia [24]

Answer:

4($6.55)/5

Step-by-step explanation:

If five markers cost $6.55

then equate or cross multiply inorder to get the cost of 4 markers.

4($6.55)/5

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3 years ago