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2 years ago

Which pair of angles are congruent or supplementary

Mathematics

1 answer:

Fittoniya [83]2 years ago

6 0

Angles 1 and 3 are supplementary

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The number of cases of a new disease can be modeled by the quadratic regression equation y = –2x2 + 36x + 6, where x represents

nirvana33 [79]

Since x represents the year, year 15 will be 15 years.

Plug in "15" as your "x"

y = -2(15)^2 + 36(15) + 6

15^2 = 225 (Exponents come before multiplication)

y = -2(225) + 36(15) + 6

y = -450 + 540 + 6

y = 90 + 6

y = 96

<em>The answer is B</em>

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3 years ago

What do 110°, 250°, and -470° angles have in common?

Nadusha1986 [10]

They are all larger than 90 degrees, and in a triangle they would all be obtuse angles.

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What you word phrase can you use to represent 5x+2

Archy [21]

Answer:

five times a number plus two

Step-by-step explanation:

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Thepotemich [5.8K]

I think it’s A Im not sure tho

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The mean amount spent by a family of four on food is $500 per month with a standard deviation of $75. Assuming that the food cos

Alexeev081 [22]

Answer:

$z=\frac{x- \mu}{\sigma}$

And replacing we got:

$z=\frac{425-500}{75}= -1$

And we can calculate this probabilit using the normal standard distribution or excel and we got:

$P(z$

Step-by-step explanation:

If we define the random variable of interest "the amount spent by a family of four of food per month" and we know the following parameter:

$\mu = 500, \sigma = 75$

And we want to find the following probability:

$P(X$

And we can use the z score formula given by:

$z=\frac{x- \mu}{\sigma}$

And replacing we got:

$z=\frac{425-500}{75}= -1$

And we can calculate this probabilit using the normal standard distribution or excel and we got:

$P(z$

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2 years ago