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3 years ago

If y=x^2 and x=(-8) then y=

Mathematics

2 answers:

Lelu [443]3 years ago

7 0

Answer:

y= 64

Step-by-step explanation:

kifflom [539]3 years ago

6 0

y = x² x = -8

Since x = -8, you can plug in -8 into "x" in the equation

y = x²

y = (-8)²

y = 64

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A princess hat for a costume is shaped like a cone. The base of the cone is 12 in across and the height is 8

LenaWriter [7]

Answer:

Part a) The drawn in the attached figure

Part b)The slant height of the outside edge is $x=10\ in$

Step-by-step explanation:

Part a) The drawn in the attached figure

Part b) What is the slant height of the outside edge?

we have that

The diameter of the base of the cone is 12 in

$r=12/2=6\ in$ ----> the radius is half the diameter

$h=8\ in$

Applying the Pythagoras Theorem find the slant height x

$x^{2}=r^{2}+h^{2}$

substitute the values

$x^{2}=6^{2}+8^{2}$

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4 years ago

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Natasha_Volkova [10]

Answer:

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Step-by-step explanation:

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3 years ago

Evaluate the mean of each data set mentally<br> 27, 30, 33

wolverine [178]

Answer:

Step-by-step explanation:

27+30+33 = 90

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5 0

3 years ago

Whats the answer for 7x-3x^2=85+2x^2=2x and how do you solve it

stich3 [128]

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4 years ago

40% of the people attending the movie were adults if 20 adults attended the movie then how many people attended the movie (use a

podryga [215]

Answer:

Step-by-step explanation:

Let x represent the number of people that attended the movie.

And y the number of adults that attended the movie

Given;

Percent of adults that attended the movie = 40%

Number of adults that attended the movie y = 20

So,

40% of those that attended the movie area adults.

y = 40% of x

y = 40/100 × x

y = 0.4x

(Ratio of y to x is 4:10 or 0.4)

Making x the subject of formula;

x = y/0.4

Substituting the value of y given;

x = 20/0.4

x = 50

Therefore, 50 people attended the movie.

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4 years ago