All categories

3 years ago

Evaluate 7 + (-3x^2) For x = 0A. -2B. 0C. 4D. 7

Mathematics

1 answer:

Goryan [66]3 years ago

8 0

Answer: D. 7

Step-by-step explanation:

The problem tells you that x = 0 so replace everything that is x in the equation with 0 so the problem becomes

7 + (-3(0)^2)

Now we just solve the problem normally.

solve the problem in the parenthesis first, we must multiply -3 times 0^2 is 0

so now our problem is 7 + 0 which is 7

You might be interested in

HELP ASAP PLEASE MY TEST IS DUE<br><br> Evaluate the following expression: 4^3 x (100/25) - 5^0

Natasha_Volkova [10]

Answer:

256−1

Step-by-step explanation:

7 0

2 years ago

HELP PLLZZZZZZZZZZZZZZZZZZZ

Alex17521 [72]

18 1/4 pieces she will have now
:)

3 0

2 years ago

The average score of all pro golfers for a particular course has a mean of 70 and a standard deviation of 3.0 (Think of these as

bija089 [108]

Answer:

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 70

Standard Deviation, σ = 3

Sample size, n = 36

Let the average score of all pro golfers follow a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(score of the 36 golfers was between 70 and 71)

$\text{Standard error of sampling} = \displaystyle\frac{\sigma}{\sqrt{n}} = \frac{3}{\sqrt{36}} = \frac{1}{2}$

$P(70 \leq x \leq 71) = P(\displaystyle\frac{70 - 70}{\frac{3}{\sqrt{36}}} \leq z \leq \displaystyle\frac{71-70}{\frac{3}{\sqrt{36}}}) = P(0 \leq z \leq 2)\\\\= P(z \leq 2) - P(z \leq 0)\\= 0.977 - 0.500 = 0.477= 47.7\%$

$P(70 \leq x \leq 71) = 47.7\%$

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

8 0

3 years ago

Help please!!!!!!!!!!!

adell [148]

Answer:

ok give me a min

Step-by-step explanation:

3 0

2 years ago

Which best describes the relationship among the volumes of hemisphere X, cylinder Y, and cone Z?

kogti [31]

Answer: I saw on another post on here with the same question that someone said it was

B. The sum of the volumes of X and Z equals the volume of Y.

6 0

3 years ago

Evaluate 7 + (-3x^2) For x = 0A. -2B. 0C. 4D. 7​

Evaluate 7 + (-3x^2) For x = 0A. -2B. 0C. 4D. 7