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2 years ago

Evaluate: -7 - (-8) + (-3) + 6 - 2 A) -2 B) 0 C) 1 D) 2

Mathematics

2 answers:

miskamm [114]2 years ago

5 0

The answer is D ........

Gala2k [10]2 years ago

4 0

Answer:

D) 2

Step-by-step explanation:

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What is the average rate of change of the function f(x)=20(14)xf(x)=20(14)x from x = 1 to x = 2? Enter your answer, as a decimal

Advocard [28]

The average rate of a function f(x) over an interval x = a and x = b is given by:

$Average \ Rate \ of \ Change= \frac{f(b)-f(a)}{b-a}$

Given the function

$f(x)=20(14)^x$

The average rate of change from x = 1 to x = 2 is given by:

$\frac{f(2)-f(1)}{2-1} = \frac{20(14)^2-20(14)^1}{1} \\ \\ =20(196-14)=20(182)=3,640$

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3 years ago

Assume that y varies directly with x, then solve.

Volgvan

Answer:

Step-by-step explanation:

y = kx

2⅔ = k(¼)

8/3 = k/4

k = 4×8/3 = 32/3

y = (32/3)x

y = (32/3)(1⅛)

y = (32/3)(9/8)

y = 3×4 = 12

8 0

3 years ago

given that a test statistic in a left tailed test is z equals -1.25, use a 0.05 significance level to find the p-value and state

mr Goodwill [35]

Answer:

The p-value of the test is 0.106.

The null hypothesis will be accepted at 5% level of significance.

Step-by-step explanation:

The hypothesis test is left-tailed.

The test statistic value is: z = -1.25.

The significance level of the test is: α = 0.05.

The p-value of a left-tailed hypothesis test is:

$p-value=P(Z$

The p-value of the test is 0.106.

**Use the z-table for the probability.

Decision rule:

If the p-value is less than the significance level the null hypothesis will be rejected and if it is more than the significance level the null hypothesis will be accepted.

The p-value = 0.106 > α = 0.05.

The null hypothesis will be accepted at 5% level of significance.

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3 years ago

George wants to know if two pieces of wire are the same length. one wire is 6/8 yard. the other is 3/4 yard. draw a number Line

wlad13 [49]

They are the same length. You need to find the common denominator (8) and multiply both the numerator and denominator on 3/4 to ger 6/8. Than, just draw a numberline comparing the lengths! Hope this helped

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3 years ago

Of the possible outcomes in the sample space, how many times does the event of rolling a two occur?

Liula [17]

Answer:

Is there a picture attached? if not the possibility of rolling a 2 on a 6 sided die is 1/6

5 0

2 years ago

Read 2 more answers