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4 years ago

Help!!! I don't know this

Mathematics

2 answers:

AveGali [126]4 years ago

4 0

Answer: A. Graph c nkkhgthjnvcf

vovikov84 [41]4 years ago

4 0

Answer:

Graph C

The Y axis is up and down and the x axis is side to side. So first we want to look to see which line crosses the y axis the the up and down black line.

When you are finding a coordinate you set it up like this (x, y). You will find x first and y second.

So we are down to two graphs graph a and graph c. Know both of them cross at the (0,-7) mark but it asks for one other thing a well.

On a graph when something decreases it will go down and when something increases it will go up. So that tells me it is graph C.

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Please help. 3.5q-145=5q

alexandr1967 [171]

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable. q = − 96.6 <-- (The 6 is repeated)

Step-by-step explanation:

hope this helps :)

6 0

3 years ago

Read 2 more answers

Suppose total benefits and total costs are given by b(y) = 100y − 8y2 and c(y) = 10y2. what is the maximum level of net benefits

olga nikolaevna [1]

Whenever you face the problem that deals with maxima or minima you should keep in mind that minima/maxima of a function is always a point where it's derivative is equal to zero.
To solve your problem we first need to find an equation of net benefits. Net benefits are expressed as a difference between total benefits and total cost. We can denote this function with B(y).

B(y)=b-c
B(y)=100y-18y²

Now that we have a net benefits function we need find it's derivate with respect to y.

$\frac{dB(y)}{dy} =100-36y$

Now we must find at which point this function is equal to zero.

0=100-36y
36y=100
y=2.8

Now that we know at which point our function reaches maxima we just plug that number back into our equation for net benefits and we get our answer.

B(2.8)=100(2.8)-18(2.8)²=138.88≈139.

One thing that always helps is to have your function graphed. It will give you a good insight into how your function behaves and allow you to identify minima/maxima points.

3 0

3 years ago

Select the correct answer. This table shows information on types of fragrances sold to men and women in a day at a beauty supply

maria [59]

Answer: C. 27% of men like woody fragrances, and 45% of the people who like citrus fragrances are women

Step-by-step explanation:

Here, Given table,

Citrus Fruity Woody

Men : 27 21 18

Women : 22 26 15

Thus, The percentage of men like woody fragrances

= $\frac{\text{Number of men who like woody fragrance}}{\text{total number of Men}} \times 100$

= $\frac{18}{66}\times 100$

= $\frac{1800}{66}$

= 27.2727..... %

≈ 27 %

Now, The percentage of men like woody fragrances

= $\frac{\text{Number of women who like citrus fragrance}}{\text{total number of persons who like citrus}} \times 100$

= $\frac{22}{49}\times 100$

= $\frac{2200}{49}$

= 44.8979591837 %

≈ 45 %

Thus, Option C is correct.

3 0

3 years ago

Read 2 more answers

Matthew pays $24 each month for a health club membership. What is the total yearly amount to be budgeted for the membership?

Mkey [24]

For this case we have that the variable "y" represents the total cost of the annual club membership.

For its part, the variable "x" represents the number of months.

Now, we have the following function:

$y = 24x$

If you want to know the annual amount, then $x = 12$

$y = 24 * 12\\y = 288$

Thus, the total annual amount is 288 dollars.

ANswer:

$ 288

7 0

3 years ago

HELPP PLEASE FAST!! a store has televisions on sale for 20% off the original price. The original price of a television is 150 be

Margarita [4]

Method 1: A pure algebraic approach

The unknown in this problem is the percent of decrease. A percent of decrease is the percentage of the original price that was deducted from the original price to obtain the sale price. We could write a "word equation" for this process like this:

original price - (percent of decrease)(original price) = sale price

Since the percent of decrease is the unknown in this problem, we'll call the percent of decrease x%.

Here's what we know so far:

The original price was $200

The sale price was $170

The percent of increase was x%

Putting this information in our word equation gives us an algebraic equation:

200 - (x%)(200) = 170

What do we do with the percent sign in this equation? "Percent" means "out of 100", so x% means x out of 100, or . Now we have this:

200 - (200) = 170

Now we'll solve our equation:

200 - (200) = 170

200 - 2x = 170

-2x = -30

x = 15

So the percent of decrease is 15%

Method 2: A method involving pure arithmetic.

If we know the original price and the sale price, we can find the percent of decrease in two steps:

Find the amount of decrease

Divide the amount of decrease by the original amount

This will give us the percent of decrease (written as a decimal number). We can then write the decimal as an equivalent percent to find our final answer.

Let's use method 2 on the same problem:

Frank bought a new television set on sale. If the TV's original price was $200 and Frank paid $170 for the TV, what was the percent of decrease?

First, let's find the amount of decrease:

Amount of decrease = 200 - 170 = 30

So the price decreased by $30.

Next, we'll find the percent of decrease, and rewrite the decimal answer as a percent:

Percent of decrease = = = .15 = 15%

So the percent of decrease is 15%

Before we leave the problem, let's check our answer:

Original price = $200

Price reduced by 15% of original price = 200(.15) = $30

Sale price would then be = $200 - $30 = $170

Our answer checks. We're done! Me not know if correct.

3 0

3 years ago

Help!!! I don't know this ​

Help!!! I don't know this