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3 years ago

Solve for x and y: (x + yi) -(2-1) = 12 +7i

Mathematics

1 answer:

kumpel [21]3 years ago

8 0

Answer:

These are the answers.

Step-by-step explanation:

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Your friend believes that he has found a route to work that would make your commute faster than what it currently is under simil

Strike441 [17]

Answer:

The range of p-values

0.01

Step-by-step explanation:

Explanation:-

Given random sample size 'n' = 7

Assume that the populations are normally distributed

Null Hypothesis :H₀:μd=0.

Alternative Hypothesis:H₁:μd<0.

Degrees of freedom

ν = n-1 =7-1 =6

given the test statistic t = - 3.201

we will use single tailed test in t-distribution table

The test statistic t= 3.201 is lies between the critical values is 0.01 and 0.025

The range of p-values

0.01

Final answer:-

The range of p-values

0.01

5 0

3 years ago

What is the average rate of change for ƒ(x) = −3x + 79 over the interval 2 ≤ x ≤ 4?

Ainat [17]

Answer:

The average rate of change is -3.

Step-by-step explanation:

Given : Function $f(x)=-3x+79$ over the interval 2 ≤ x ≤ 4.

To find : What is the average rate of change ?

Solution :

Function $f(x)=-3x+79$ over [2,4]

The rate of change is the slope of the line,

So, $\text{Rate of change}=\frac{f(4)-f(2)}{4-2}$

$f(4)=-3(4)+79$

$f(4)=-12+79$

$f(4)=67$

$f(2)=-3(2)+79$

$f(2)=-6+79$

$f(2)=73$

Substitute,

$\text{Rate of change}=\frac{67-73}{4-2}$

$\text{Rate of change}=\frac{-6}{2}$

$\text{Rate of change}=-3$

Therefore, The average rate of change is -3.

8 0

3 years ago

Read 2 more answers

James and Gavin purchase two baseball tickets. Tickets cost $8.50 each, drinks cost $3.50 each, and bags of popcorn cost 3.00 ea

Lunna [17]

D = drinks, p = popcorn
17 + 3.50d + 3.00p

variables : a letter in place of an unknown number : (d and p)
coefficients : the number multiplied by the letter : (3.50 and 3.00)
constants : a lone number, no variables attached : (17)

6 0

4 years ago

A blueprint of a barn is shown.The scale is 5 inches =8 feet. Find the actual length of the wall that is labeled 20 inches.

kenny6666 [7]

5=8
20/5=4
8x4=32
The answer is 32 feet

4 0

2 years ago

A case of snickers contain 20 snicker bars. Joe paid $30 for 2 cases of snickers bars. To fill the vending machines, he needs 14

Angelina_Jolie [31]

Answer:

$105

Step-by-step explanation:

$15 for one case of snicker bars. Since it's $30 for 2. He needs 140 so 140 divided by 20(which is in one case) = 7. So he needs 7 cases to have 140 snicker bars. Well, if each case itself is $15 and we need 7 cases. 7 times 15= 105. It's going to cost him $105 to fill that vending machine.

8 0

3 years ago