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2 years ago

Which of the following is not a function? A. y-x=6 B. y=2x² C. x= -2 D. y+x=12

Mathematics

2 answers:

True [87]2 years ago

8 0

I would say that it is B

IceJOKER [234]2 years ago

5 0

I hope this helps you

y=f (x)

A) f (x)=x+6

B) f (x)=2x^2

C) x= -3 there's no y

D) f (x)=12-x

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Which mathematical statement represents “17 more than a number is 26”?

Paladinen [302]

17 + x = 26

17 +n = 26

n + 17 = 26

something like those, you didn't give options to choose from.

8 0

3 years ago

Read 2 more answers

Please help. Full explanation if you can.

sukhopar [10]

392 boots. If you divide everything into "sets" of an unknown amount, there are 5 more "sets" of boots than sandals, also known as the 245 boots. So if you divide 245 by 5, you'll get the number of items in a "set". Then just multiply by 8 from the 8:3 ratio. If you check it, it will come out to 392 boots to 147 sandals, which I think is ridiculous since sandals are supposed to come in pairs so you should never have a odd number. But anyway, 392 - 147 = 245

6 0

3 years ago

The area of a cross section through the center of a sphere is 46 square inches. Find the surface area of the sphere.

gavmur [86]

Answer:

184 in.^2

Step-by-step explanation:

The cross section through the center of a sphere is a circle whose radius is equal to the radius of the sphere.

area of circle

$A_{circle} = \pi r^2$

$\pi r^2 = 46$

$r^2 = \dfrac{46}{\pi}$

$r = \sqrt{\dfrac{46}{\pi}}$

$r = 3.83 ~in.$

surface area of sphere

$SA = 4 \pi r^2$

$SA = 4 \times \pi \times (3.83)^2$

$SA = 184~in.^2$

7 0

3 years ago

What’s the mathematical expression for “five times x is fewer than 12”

Musya8 [376]

Answer:

5x<12

Step-by-step explanation:

Five times x is equally 5x fewer than is equally < # 5x<12

3 0

3 years ago

Please solve for me ill give brainliest

Black_prince [1.1K]

Answer:

$\displaystyle (0, -1); maximum$

Step-by-step explanation:

First off, B is zero, so there is no phase shift, meaning that the vertex stays on the y-axis. Next, A is negative, so the parabola opens down, and whenever you have a parabola opening down, it does so at maximum. Finally, C represents our y-intercept, or in this case, our vertical shift. Our y-intercept is (0, −1), and so as our vertex, hence our answer.

I am joyous to assist you anytime.

7 0

3 years ago