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2 years ago

If f(x) = -4x^2 - 5x + 2, what is f(3) ?

Mathematics

1 answer:

svp [43]2 years ago

5 0

The value should be -49. Hope this helps.

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LOGARITHMIC functions have 2 asymptotes<br> True<br> False

JulsSmile [24]

true, both have a domain limited to x values great then 0

8 0

2 years ago

One sample has Aa Aa One sample has n 10 scores and a variance of s2 20, and a second sample has n 15 scores and a variance of s

siniylev [52]

Answer:

option (a) It will be closer to 30 than to 20

Step-by-step explanation:

Data provided in the question:

For sample 1:

n₁ = 10

variance, s₁² = 20

For sample 2:

n₂ = 15

variance, s₂² = 30

Now,

The pooled variance is calculated using the formula,

$S^{2}_{p} = \frac{(n_{1}-1)\times s^{2}_{1} +(n_{2}-1)\times s^{2}_{2}}{n_{1}+n_{2}-2}$

on substituting the given respective values, we get

$S^{2}_{p} = \frac{(10-1)\times 20 +(15-1)\times 30}{10+15-2}$

$S^{2}_{p}$ = 26.0869

Hence,

the pooled variance will be closer to 30 than to 20

Therefore,

The correct answer is option (a) It will be closer to 30 than to 20

4 0

3 years ago

Please help if possible its important!!

Otrada [13]

Answer:

600 ft³

Step-by-step explanation:

Base area: B

Base is triangle

base = 12 ft and height = 5 ft

Area of triangle = B = $\frac{1}{2}* \ base * \ height$

$= \frac{1}{2}*12 * 5\\\\= 6 * 5\\\\= 30 \ ft^{2}$

H = 20 ft

Volume = B * H

= 30 * 20

= 600 ft³

7 0

3 years ago

What does v= bh over 3 for b=2 inches squared and h=32 inches equal

ss7ja [257]

V=bh/3

V=(2*32)/3

V=64/3

V=21.3333 ( Round answer as needed)

6 0

3 years ago

Math answer pls answer

weeeeeb [17]

The solution to that equation is (6,-4)

6 0

3 years ago

Read 2 more answers