What is the surface area of the prism?

This is a system of three equations with two unknowns, x and y. To solve it, we can use the method of elimination. First, we can eliminate y by subtracting the first equation from the second equation:

x^2-2y=3 - (x-2y=3) => x^2-x=0

Then we can factor the resulting equation and find the values of x:

x^2-x=0 => x(x-1)=0 => x=0 or x=1

Next, we can substitute these values of x into any of the original equations and find the corresponding values of y. For example, using the first equation:

x-2y=3 => 0-2y=3 => y=-3/2 when x=0 x-2y=3 => 1-2y=3 => y=-1 when x=1

Finally, we can substitute these values of x and y into the expression x2y-2xy2 and evaluate it:

x2y-2xy2 => 02(-3/2)-2(0)(-3/2)2 => 0 when x=0 and y=-3/2 x2y-2xy2 => 12(-1)-2(1)(-1)2 => -3 when x=1 and y=-1

Therefore, the value of x2y-2xy2 can be either 0 or -3 depending on the values of x and y.

Answer:

C I think

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

23*1 is 23

the other ones can have other multiples

Answer:

i need a tutor too .

Step-by-step explanation:

Answer:

4400

Step-by-step explanation:

I think this is right sorry if its not. Have a good night, sorry if im late.

Answer:

  4600 miles

Step-by-step explanation:

You want to know the difference in miles per hour between a satellite traveling 45000 miles in 5 hours and one traveling 79200 miles in 18 hours.

The speed in miles per hour is the ratio of miles to corresponding hours. The difference in miles traveled in one hour will be ...

  A speed - B speed

  45000 mi/(5 h) - 79200 mi/(18 h) = 4600 mi/h

Explorer B travels 4600 fewer miles in an hour than Explorer A.

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Answer:

1) to work out the area of a parallelogram you need to do area= base x height.

6.3x27.3=171.99m^2

2) 420.92/27.4= 15.36mm to 2 decimal places

3) 133.2x30.6=4075.92mm^2

4) 651/61=10.57m to 2 decimal places

5) (32x2)+(34x2)=132mm

6) 40x18=720mm^2

7) (8.8x2)+(7.9x2)=33.4m

8)354/23= 15.39cm to 2 decimal places

9) 44/4=11

11x11=121mm^2

10)55/4=13.75

13.75x13.75=1890.0625cm^2

11) 43x18=774m^2

12) 25x35=875m^2

13)600/16=37.5m

14) 125-(40.5x2)=44.6

44.6/2=22.3

22.3x40.5=903.15cm^2

15) 64.3x4.3=276.49m^2

Step-by-step explanation:

Answer:

20 bags

Step-by-step explanation:

they should by 20 bags because 6 x 32 will equal how many lemons total you need. then you divide that number by 10.

Answer:

He should buy 20 bags of lemons.

Step-by-step explanation:

Okay, so the first step will be to see how many lemons we first need. We do this by multiplying the 32 people and the 6 lemons:

32 x 6 = 192 lemons

The next step is to find out how many bags we need. So, we know we have 192 lemons and each bag of lemons contain 10, so we need to divide 192 by 10.

192 divided by 10 = 19.2

Now, 19.2 isn't the answer because it is not a whole number. We can't buy a fraction of lemons. So, we need to buy 1 more extra bag to be able to have all 32 people be able to have some lemonade:

19 + 1 = 20 bags of lemons.

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Answer:

d

                          Im pretty sure its d

Answer:

B.

Step-by-step explanation:

To dilate is to make something bigger. It says in the question that you dilate by a factor of 2, so multiply the length of the side by 2. This will get you 68.

As far as angles are concerned, angles do not change when the object is scaled bigger. So for the angle of A, the answer is still 28 degrees.

This leaves us with our final answer, which is B.

Answer:

In ΔABE and ΔACF,

∠BAE=∠CAF  (Common angle)

∠AEB=∠AFC ....(∵BE⊥AC and CF⊥AB)

BE=CF (Given that altitudes are equal)

By AAS criterion of congruence,

ΔABE≅ΔACF

Hence,

AB=AC (by CPCT)

Step-by-step explanation:

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Answer:p

Step-by-step explanation:hit the ball

Answer: 8 seconds

Step-by-step explanation:

Answer:

3² × (|5 - 15| ÷ 3) = 30

Step-by-step explanation:

Given problem,

→ 3² × (|5 - 15| ÷ 3)

Let's solve the problem,

→ 3² × (|5 - 15| ÷ 3)

→ 9 × (|-10| ÷ 3)

→ 9 × (10/3)

→ 90/3 = 30

Hence, the answer is 30.

Answer:

3 bottles

Step-by-step explanation:

area=base x height

area=30 x 15=450 ft^2

450/180=2.5

Answer: 1. a. 15     b. 11     c. 2     d. 7     e. 5.5

2.  Stem:                   Leaf:

        1                           9

        2                         5, 9

        3                        3, 3, 8

        4                        0, 7, 9

        5                          4, 5

        6                           1, 5

        7                           2, 7

        8                             1

3. a. 13 inches        b. I'm pretty sure that it is the second quarter because there is more snow.           c. The first quarter because it's section is more spread out among the numbers.

Step-by-step explanation:

Answer: (2/3) cup=10 bars

[(20) cups]/[(2/3) cups]=(x bars)/(10 bars)

Let's first notice that on the left side, the unit of cups is in the numerator and denominator.  These cancel.

Let's next notice that on the right side, the unit of bars is in the numerator and denominator.  These cancel.

[(20) cups]/[(2/3) cups]=(x bars)/(10 bars)

(20)/(2/3)=x/10

This can also be written as....

(3/2)(20)=x/10

60/2=x/10

30=x/10

Let's multiply both sides by 10...

30(10)=(x/10)(10)

300=x

Answer:

192 hours per day / 8 hours per person per day = 24 people

Step-by-step explanation:

Assuming each person works for 8 hours a day, the total number of hours needed to complete the project is:

720 person-days x 8 hours = 5,760 hours

To complete the project in 30 days, the total number of hours needed per day is:

5,760 hours / 30 days = 192 hours per day

Answer:

A. The students tend to have fewer siblings than the teachers.

Step-by-step explanation:

First we need to draw the dot plots correctly. If you count both sides they have 20 each.

Now, clearly none have fewer nobody here yet has more or less but going on to the next step.

Multiply exactly the number of siblings times how many people chose that many siblings. Ex: 2 (siblings) times 7 (people who has 2 siblings) = 14.  And so on.

On the Student A, we get a total of 41 people having sibling, if you count the 0's then there were a total of 43 people. But now on the Teacher's A Dot Plot, we have a total of 68 people, if you include the 0 then we have a total of 69.

So the answer is A. The students tend to have fewer siblings than the teachers.

Answer:

The sum is A

Step-by-step explanation:

Just ma duty to help the community

Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth

Hope my answer helps you✌️

Answer:

25

Step-by-step explanation:

\(\frac{xz}{-y}\)= (10*-5) / -2 = -50/-2 = 25

Answer: $0.35

Step-by-step explanation:

Answer: 7%

Step-by-step explanation:

Ok, we'll start by listing the facts.

Facts

Pack of pencils is $5

Total cost: 5.35

This means the sales tax is 35 cents, but we need to find the percentage to get the sales tax rate.

We can do this by dividing .35 by 5

0.35÷5= 0.07

Convert 0.07 to a percentage by multiplying it by 100

0.07x100= 7

Hence the sales tax rate is 7%. We can check to make sure this is correct by finding 7% of 5, and then adding the result to the 5.

7% of 5= 0.35

5+0.35= 5.35

Hope this helps, and brainliest would be appreciated :))

Answer:

D

Step-by-step explanation:

just multiply the three over four inches with seven and a half to get the accurate measurements

Answer:

she would have 3.375 full bags left over and 2.7lbs left over

Step-by-step explanation:

you convert 4/5 to .8 and multiply by 5 to get the total weight,4. you convert the amount needed 3/5 and 7/10 to .6 and .7. Add together to get 1.3. Do 4 minus 1.3. you get 2.7lbs left over. You divide 2.7 by .8, the amount in the bags to get 3.375 bags left over

Answer:

Pretty sure it is 1 and 1/10

first I added 3/5 and 7/10 to find the total clay she used.

she used 1 and 3/4lbs of clay for both pieces of pottery witch is 1.3.

She has 3 bags of clay that weigh 4/5 pound each so I multiplied 4/5 by 3 to get 2 and 2/5 witch is 2.4.  

Since she was 2.4 lbs total and she used 1.3lbs I subtracted 1.3 from 2.4 to get 1.1.

Last I converted 1.1 to 1 and 1/10.

I hope this helps.

Answer:

Step-by-step explanation:

That’s easy

Answer:

For the first one, it should be they were wrong and it should be  80 percent

Step-by-step explanation:

Answer:

Vertex form of a quadratic equation is y=a(x-h)2+k, where (h,k) is the vertex of the parabola.

The vertex of a parabola is the point at the top or bottom of the parabola.

'h' is -6, the first coordinate in the vertex.

'k' is -4, the second coordinate in the vertex.

'x' is -2, the first coordinate in the other point.

Step-by-step explanation:

Answer: The Confederacy did not have the resources to make ironclads, but the Union did.