All categories

3 years ago

What is 3 = -2v − v v=

Mathematics

2 answers:

horsena [70]3 years ago

8 0

Answer:

-1 =v

Step-by-step explanation:

3 = -2v − v

Combine like terms

3 = -3v

Divide each side by -3

3/-3 = -3v/-3

-1 =v

aliina [53]3 years ago

6 0

First combine like terms on the right side.

The v terms can be combined to get -3v.

So we have 3 = -3v.

Now divide both sides by -3 to get <em>-1 = v</em>.

You might be interested in

HELP YOU WILL GET BRAINLIEST

dezoksy [38]

Answer:

60π

Step-by-step explanation:

2π(3 × 7 ) + 2π (3)^2

Distribute: 2x3x7 and 2x3^2

42π + 18π

That gives 60π.

7 0

3 years ago

A resercher is wondering whehter the drinking habits of adults in a certain region of the country are in the same proportion as

Andrews [41]

Answer:

Answer for the question :

A resercher is wondering whehter the drinking habits of adults in a certain region of the country are in the same proportion as the general population of adults. Suppose a recent study stated that the proportion of adults who reported drinking once a week or less in the last month was 0.26. The researcher's null hypothesis for this test is H0: P=0.26 and the alternative hypothesis is Ha; P> 0.26. The researcher collected datat from a random sample of 75 adults in the region of interest.

1- Verify that the normality assumption is satisfied. Describe each separately.

2- To cotinue the study into the drinking habits of adults, the researcher decides to collect datat from adults working in "blue collar" jobs to see whether their drinking habits are in the same proportion as the general public. The null hypothesis for this test is H0: P=0.26 and the alternative hypothesis is Ha: P>0.26. The researcher computer the test statistic to be 1.59. Draw a graph of z distribution, label the test statistic and shade the p-value associated with this test statistic."

is given in the attachment.

Step-by-step explanation:

3 0

4 years ago

Karen makes $5 per hour for babysitting and $12 per hour giving music lessons. One week she worked a total of 18 hours and made

swat32

B = hours babysitting
m = hours giving music lessons

so... whatever "b" and "m" are, their sum for that week was 18
thus
b + m = 18

now, money wise, she makes $5 for "b" and that is, she made 5*b or 5b that week
for "m", she makes $12, so for that week she made 12*m or 12m

whatever "b" and "m" are
thus

5b + 12m = 139

now $\bf \begin{cases}
b+m=18\to \boxed{m}=18-b\\\\
5b+12m=139\\
----------\\
5b+12\left( \boxed{18-b}\right)=139
\end{cases}$

solve for "b", to see how many hours she spent babysitting

4 0

3 years ago

The total charge in dollars for a car rental can be determined by using the function c = 0.4x + 35, where c represents the total

andrew11 [14]

Answer:

There is an initial charge of $35.00 for every mile traveled.

Step-by-step explanation:

From the question, the cost function s given as follows:

c = 0.4x + 35 .................... (1)

Where;

Total cost = c

Variable cost per mile = $0.40

Number of miles traveled = x

Total variable cost = 0.4x = 0.40 * x

Fixed cost = Initial cost = $35

From the above, the fixed cost or initial cost implies that no matter the number of miles a passenger takes, he is going to pay $35 in addition to the variable cost to pay.

From the question, for driving a distance of 100 miles we have:

Number of miles traveled = x = 100

Total variable cost = 0.40 * 100 = 40

Substituting the relevant value into equation (1), we have:

c = 40 + 35

c = 75

Since the total cost obtained above is $75.00, it therefore implies that the correct statement that justifies that the total cost for renting this car and driving a distance of 100 miles is $75.00 is "There is an initial charge of $35.00 for every mile traveled".

8 0

3 years ago

I don't know this please help no links Brainliest

rewona [7]

Answer:

-3/5

Step-by-step explanation:

Find an easy to read point on the intersection of grid lines.

Go up vertically and left horizontally.

up 3 units = rise of 3 units

left 5 units = run of -5 units

slope = rise/run = 3/(-5) = -3/5

3 0

3 years ago