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Lady bird [3.3K]
3 years ago
14

H(x)= (x^2)+2 A) (-3,-7) B) wrong C) (2,4) D) (3,11)

Mathematics
1 answer:
bezimeni [28]3 years ago
3 0
Your input value set is {-3, -2, 2, 3}.

One by one, subst. the x values into the function and note the y-value obtained.  In which of the four cases does this y-value match the given ordinate?

Example:

Let's try x = -3.  Subst. -3 for x in h(x) = x^2 + 2, we get h(-3) = (-3)^2 + 2, 
or 11.    But the ordered pair is (-3,-7), and -7 is not equal to 11.  Thus, eliminate the first answer choice.  Move on and do the same work for the next x-value, which is x = -2.
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U^2(2u+3)+7(2u+3)

(u^2+7)(2u+3)
6 0
2 years ago
ASAP, GEOMETRY PLEASE HELP ME
Black_prince [1.1K]

Answer: 405 yd squared

Step-by-step explanation:

V = (bh)/2

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3 0
1 year ago
the ratio of seniors to juniors in the math club is 2:3. If there are 21 juniors, how many seniors are in the club?
Bond [772]

Answer:14

Step-by-step explanation:

1. Ratio : 2:3

2. Multiply the number of juniors by the Ratio

(2/3)(21)

3. Solve for answer

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8 0
3 years ago
Find an equation of variation where y varies jointly as x and the square of z, and where y=70, when x=21 and z=5.
Bezzdna [24]

Answer:

y = 181.75xz^2

Step-by-step explanation:

Given

y jointly varies to x and z^2

Required

Find the equation

We start by writing out the variation;

y\ \alpha\ xz^2

Write as equation

y = kxz^2

Substitute values of x,y and z

70 = k * 21 * 25^2

70 = k * 21 * 25 * 25

70 = k * 13125

Divide both sides by 7

\frac{70}{13125} = \frac{k * 131251}{13125}

\frac{70}{13125} = k

187.5 = k

k = 181.75

Substitute k in y = kxz^2

y = 181.75xz^2

4 0
3 years ago
WILL GIVE BRAINLIEST!
Gekata [30.6K]

Answer:

Noah

Step-by-step explanation:

For Andre you would divide 208 words by 4 minutes getting 52 words per minute. Then, for Noah divide 342 words by 6 minutes getting 57 words per minute. Noah types faster because he can type more words per minute.

8 0
3 years ago
Read 2 more answers
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