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3 years ago

NEDD HELP DUE IN A HOUR

Mathematics

1 answer:

rosijanka [135]3 years ago

8 0

I know this won't sound helpful, but search up the answers for ALL of them. And, obviously, do it QUICKLY!

You might be interested in

Factor the algebraic expression. 25a+40=

Ierofanga [76]

Answer:

$\Longrightarrow: \boxed{\sf{5(5a+8)}}$

Step-by-step explanation:

Use the distributive property.

Distributive property:

⇒ 5*5=25

⇒ 5*8=40

Rewrite the problem.

⇒ 5*5a+5*8

Solve.

Multiply.

⇒ 5*5a=25a

⇒ 5*8=40

Rewrite the expression.

⇒ = 25a+40

Therefore, the correct answer is 5(5a+8).

I hope this helps! Let me know if you have any questions.

4 0

3 years ago

#6 You want to find out what type of pet is most commonly adopted from the shelter. Over the course of a month, you randomly sur

DochEvi [55]

Answer:

we predict 2,587 persons will adopt dogs

Step-by-step explanation:

out of 40 persons 23 adopt dogs

Then

out of 40×25 persons 23×25 adopt dogs

Then

out of 1000 persons 575 adopt dogs

Then

out of 1000×4.5persons 575×4.5 adopt dogs

Then

out of 4,500 persons 2,587.5 adopt dogs

Method 2 :

Let x Ben the number of persons we predict they will adopt dogs:

Here we have a proportional relationship:

Then

$\frac{4500}{40} =\frac{x}{23}$

$\Longleftrightarrow x = \frac{4500\times 23}{40} =2587.5$

3 0

3 years ago

The answer and how to do number 2

spin [16.1K]

Put in you're calculator 64% then push equal and it will give you the answer. whatever the answer is then you would add 45. And that is your answer

3 0

4 years ago

An online fax company, EFaxIt, has a customer plan where a subscriber pays a monthly subscription fee of $6.5 dollars and can se

Aloiza [94]

Answer:

62 pages

Step-by-step explanation:

The total cost function is given as below:

C= 0.06p + 12.75

C=total cost for printing= $16.47

0.06= variable printing cost per page

p=number of pages prinited=the unknown

12.75=monthly fixed printing cost

16.47=0.06p+12.75

16.47-12.75=0.06p

3.72=0.06p

0.06p=3.72

p=3.72/0.06

p=62 pages

6 0

3 years ago

Can someone please help me with this!?

Katarina [22]

One way of solving this problem can be Heron's formula. It is a formula that allows us to compute the area of a triangle, knowing the length of its three sides.

For the sake of clarity, let's assume that the point in the top-left lies in the origin, and let's call it point A. Then, the "middle" point is point B, and the bottom-right point is point C.

If we fix the coordinate axis with the origin in A, we have the following coordinates for the three points:

$A = (0,0),\quad B = (4,-1),\quad C = (7,-5)$

We can compute the length of any side using the formula for the distance between two points:

$d(P,Q) = \sqrt{(P_x-Q_x)^2 + (P_y-Q_y)^2}$

Plugging the approriate values, we get the following lenghts:

$\overline{AB} = \sqrt{17},\quad \overline{BC} = 5,\quad \overline{AC} = \sqrt{74}$

Now that we have the lengths, we can use Heron's formula: given the side lenghts $a,b,\text{ and } c$ and the semiperimeter $p$ , the area is given by

$A = \sqrt{p(p-a)(p-b)(p-c)}$

If you plug our values, you will get an area of 6.5. So, unless I'm mistaken, none of the answers seem to mach, whereas 7 seems the best approximation.

4 0

3 years ago