3 years ago

what is 2.9+3.9 estimated, 12.99-3.95 estimated, 8.1+3.7+7.9 estimated, and 3.8+4.1+3.3 estimated answer ASAP plz

Mathematics

1 answer:

DIA [1.3K]3 years ago

3 0

Answer:

7, 17, 20, 11

Step-by-step explanation:

you just round each number to the nearest whole number and then add them

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Given the function f(x)=X^2- 3x, find f(-4)

sladkih [1.3K]

Put -4 in place of x
-4 to the second power is 16 so it would be 16-(-12)= 28

5 0

1 year ago

this triangular prism has a length of 20 centimeters, an end base of 6 centimeters and an end height of 8 centimeters. what is t

pochemuha

Answer:

960

Step-by-step explanation:

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V = 20x 6 x 8

7 0

3 years ago

Rewrite f(x)=2(2-1)^2+3 from vertex form to standard

Ostrovityanka [42]

F(x)=3^2+3
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6 0

3 years ago

4) Tom is 4 years older than Bob, Evan is 10 years younger than Tom, Tucco is half of Evan's age, and Mary is 8 year

mel-nik [20]

Answer:

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Step-by-step explanation:

8 0

2 years ago

The variance Var(x) for the binomial distribution is given by equation :

aliina [53]

Answer: d. np(1 - p).

Step-by-step explanation:

Let x be any binomial variable which represents the number of success such that $X\sim B(n, p)$ , where n is the sample size or the total number of trials and p is the probability of getting success in each trial .

Then, the mean E(x) and the variance Var(x) for the binomial distribution is given by equation :

$E(x)=\mu=np$

$Var (x)=\sigma^2=np(1-p)$

where n is the sample size or the total number of trials and p is the probability of getting success in each trial .

Therefore , the correct option is option d. np(1 - p) .

6 0

2 years ago