PLZ HELP ITS 40 points

Answer:

See below.

Step-by-step explanation:

n = -1,   2n - 1 =  2(-1) - 1,  f(n) = -3

n = 7,    2n - 1 = 2(7) - 1,    f(n) = 13.

Answer:

63 students.

Step-by-step explanation:

x students.

34 have science 28 have math 5 math and science 6 neither.

6 neither means there were at least 6 students so our number goes up to 6 students.

34 have science 28 have math 5 have both.

34-5 and 28-5

29 and 23

29+23 is 52 +5 is 57 +6 is 63.

63 students.

HOpe this helps!

Merry Christmas!

Answer:

1.2*10^-2

Step-by-step explanation:

-3^0 is 1, because anything to the power of 0 (except for 0) is always equal to 1. 1 is an integer, so this is not the answer.

18/3=6, and 6 is an integer, so this is not the answer either.

1.2*10^-2 = 1.2*0.01 = 0.012, which is not an integer, so this is the answer.

49 is an integer, so this is not the answer:

Therefore, the answer to this problem is 1.2*10^-2

Hope this helped!

Answer:

[tex]1.2*(10-2)[/tex] cannot be written as an integer.

Explanation:

Fractions and decimals are not integers. All whole numbers and natural numbers are integers.

You can immediately identify that [tex]1.2*(10-2)[/tex]  cannot be written as an integer because the decimal is 1.2 and the only way it could become an integer is if it was multiplied by a number ending in 5 or with 5 as a factor (5,1 0, 15, 20, and so on). Also, it has a decimal point that isn't being multiplied by another decimal/fraction. In some cases, decimals or fractions multiplied by each other can equal an integer, but it's that's not the case in this instance.

However, if you couldn't identify this or you needed to check you answer, you could solve the expressions:

[tex]1.2*(10-2)\\1.2*(8)\\9.6[/tex]

9.6 is a decimal, therefore it is not an integer.

[tex]-3 + 0 = -3\\-3*0= 0[/tex]

I don't know if you were attempting to add or multiply, but in both cases, the sum and product equal an integer.

[tex]\frac{18}{3} = 6[/tex]

18 is divisible by 3, so you can assume that the quotient will be an integer. (3*6 = 18, to check your answer)

(To know if something is divisible by three, add the numbers of the dividend. If they equal a number that can be divided by three, you can assume that you'll get an integer and whole number.

For example: 1 + 8 = 9, 3*3 = 9)

[tex]\sqrt{49} =7[/tex]

The square root of 49 is 7. If you've memorized your square roots, you could identify quickly that the square root would be an integer. If you haven't it's okay, keep working on it!

I hope this helps!

Answer:

Two half gallon containers can hold 1 gallon, whic is about 3.785 liters.

Step-by-step explanation

Answer:

Two half gallon containers can hold 1 gallon( 3.785 liters.)

Step-by-step explanation:

Answer:

B.

Step-by-step explanation:

Answer:

teresas store

Step-by-step explanation:

Answer:

The answer is C.

Step-by-step explanation:

It cannot be between 3 and 4 because 2/3 is less than 1. You cannot end up with a larger number than 3 in this case. Similarly, it cannot be less than 2/3 because you are multiplying it by 3, which is larger than your first number.

Therefore, it has to be between 3 and 2/3 because you are taking two thirds of 3, which is 2.

Answer:y= 4x-2 and y-2=4(x-1)

Step-by-step explanation:

Answer:The answer in y=4x-2

Step-by-step explanation:

So, 4 is how man units it goes up at a time, -2 is the y intercept where it intercepts the Y axis and x is x Here is how to solve the first ordered pair the equation is 4(-1) -2 so 4 times -1 is -4 -2 so basically it is -4 +-2 so you get -6 so to solve the rest do what i just demonstrated just change x to 0,1,2 ect.

Answer: number 4 the last option

Step-by-step explanation: too lazy to write it out.... 0-0

Answer:

.95)

Step-by-step explanation:

9514 1404 393

Answer:

  B.  -0.2 + (-4.9)

Step-by-step explanation:

Subtracting a number is the same as adding its opposite. Subtracting 4.9 is the same as adding -4.9.

The appropriate choice is ...

 -0.2 + (-4.9)

Answer:

i believe its 24 in for the other leg

Step-by-step explanation:

Answer:

-b + 13

Step-by-step explanation:

(6b + 9) - (7b - 4)

to get -b you have to subtract 6 by 7

to get 13 you add 9 and 4

Answer:

8 rows

Step-by-step explanation:

The answer is 8 because 52 divided by 6.5 is 8

The least number of rows of tomato seeds that the farmer needs to plant is 8 row.

Given that, a farmer says that for every row of tomato seeds he plants, he can harvest 6.5 bushels of tomatoes.

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

The farmer needs to harvest at least 52 bushels of tomatoes.

The number of rows of tomato seeds need to plant = 52/6.5

= 8

Therefore, the least number of rows of tomato seeds that the farmer needs to plant is 8 row.

To learn more about the unitary method visit:

brainly.com/question/22056199.

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Answer:

Yes

Step-by-step explanation:

12 diveded by 3 would be 4 so 4 is one third of twelve

Answer:

y= -x + 225

Step-by-step explanation:

it has a negative slope so -x

it crosses the y axis at (0,225)

so put it together and you get -x+225

Answer:

#4:so you find out the y and the x next to the 2 and if the answer is 10 you got it right  then you add it to this to the graph.

#5: i think i need help on this one

Step-by-step explanation:

hope this helps

Answer:

35

Step-by-step explanation:

base × height so just multiple 7 and 5

Answer:

Its 2.31 meters

Answer:

Reflect across BC

Translate 4 units right

Translate 1 units down

Step-by-step explanation:

In order to receive DEF, you need to flip it across line BC. In order to find this out, just test what would happen if you flipped on the other sides. If you did that correctly, the other sides wouldn't be shaped the same as DEF.

Remember, translation is moving the ENTIRE triangle. Not just one particular point. In order to line up the two shapes correctly, you have to move the shape down one unit and across four units. To find this, you can simply just count it out. Remember, C has to reach to F. B has to reach to E. And A has to reach to D. Once you find how much you translate the graph, then you've found the answer.

Hope this helped

Answer:

Umm I'm not sure is it 25...

Step-by-step explanation:

Answer:

Tip= $5.13

Step-by-step explanation:

You can crossmultiply and use the "Is/Of x %/100" method

= X/$25.67 x 20%/100

Cross multiply:

25.67 x 20 = 513.4

Xx100= 100X

To solve for X from here, divide both answers by 100

513.4/100= 5.13

100X/ 100 = X

So...

$5.13 = X

Answer:

52.25 minutes

Step-by-step explanation:

4.75 * 11 is 52.25

Answer:

52.25

Step-by-step explanation:

Becasue 11 times 4.75 equals 52.25

Answer:

The answer is D

Answer:

me tooo plzzz some one slove this

Answer:   6

Step-by-step explanation: i know this it's hard to explain

It will take 1 3/4 gallons to paint the whole fence.

When 'a' is divided by 'b', then the result we get from the division is the part of 'a' that each one of 'b' items will get. Division can be interpreted as equally dividing the number that is being divided into total x parts, where x is the number of parts the given number is divided.

We need to find the expression of 3/4 divided by 1/8

3/4 x 8= 6

Therefore, The value of 7.89 divided by 2 is; 3.945

Now consider the gallons to paint the whole fence be x

1 1/4/x = 5/7

1.25/x = 5/7

then Cross multiply;

(5 × x) = (1.25 × 7)

5x = 8.75

x = 8.75/5

x = 1.75 = 1 3/4 gallons

Learn more about division here:

brainly.com/question/26411682

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Answer:

1x1

Step-by-step explanation:

Commutative property of multiplication: when two numbers are multiplied together, the product is the same regardless of the order of the factors. Identity property of multiplication: when a number is multiplied by 1 the result is the number itself.