I NEED HELP
Check all the equations.
8 = j – 4
the quotient of a number and two
k + 46
Twelve is the sum of a number and six.
30y
5x = 45

Answer:

(8-3)(-7) =8×-7=-56 (-3)×(-7)=+21

Step-by-step explanation:

then -56+21= 77

Answer:

3x^2-6x+1

Step-by-step explanation:

According to order of operations, you do exponents before multiplying. So, (x-1)^2=x^2-2x+1, then you multiply it by 3. Lastly, you subtract by 2.

Answer:

Fraction = [tex]\dfrac{3}{20}[/tex]

Step-by-step explanation:

Given that,

A model of the ocean floor takes up 2/5 of the space in an aquarium.

3/8 of the model is coral.

We need to find the fraction of the space in an aquarium is taken up by coral. So, it can be done as follows :

[tex]x=\dfrac{3}{8}\times \dfrac{2}{5}\\\\x=\dfrac{3}{20}[/tex]

So, the fraction of space taken by coral is [tex]\dfrac{3}{20}[/tex] in an aquarium.

Answer:

40.72units^2

Step-by-step explanation:

Given data

Radius= 3.6 units

The area is given as

A=πr^2

substitute

A=3.142*3.6^2

A=3.142*12.96

A=40.72units^2

Hence the area is 40.72units^2

Answer:

8th floor

Step-by-step explanation:

10 - 6 = 4

4 + 4 = 8

Answer:

8 floor

Step-by-step explanation:

gfhshddhdhfhdhrbyuygtv

Answer:

the correct answer is C. 540cm

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

lateral area =Pb*h

= 48(10)

= 480

which is B

if my answer helps please mark as brainliest.

Answer:

C.) One mile

Step-by-step explanation:

9/10 ain less than 1/4

9/10 is wayyy more than 1/2

9/10 ain even one mile so how could it be more than a mile?

Answer

x/3 and 2 1/3

Step-by-step explanation:

Answer:

x=-3 y=-1

Step-by-step explanation:

The solution is

The value of x = -3

The value of y = -1

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the first equation be = A

Now , the value of A is

x - 4y = 1   be equation (1)

Let the first equation be = B

Now , the value of B is

3x + 2y = -11   be equation (2)

Now , on simplifying both equations , we get

Multiply equation (1) by 3 , we get

3x - 12y = 3   be equation (3)

Subtracting equation (2) from equation (3) , we get

-12y - 2y = 3 - ( -11 )

-14y = 14

Divide by -14 on both sides of the equation , we get

y = -1

So , the value of y = -1

Substitute the value of y in equation (1) , we get

x - 4y = 1

x - 4 ( -1 ) = 1

x + 4 = 1

Subtracting 4 on both sides of the equation , we get

x = -3

So , the value of x = -3

Hence , the value of x is -3 and value of y is -1

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Answer:

118

Step-by-step explanation:

180-62=118

You're welcome :)

Answer:

option a. 62°

because opposite angle of parallelogram are equal.

Answer:

Step-by-step explanation:

(a)

well since they can lay 7 miles of track every day, the formula i make for the amount of track there is left to lay is:

L=196-Ld

where l is the length of track remaining, L is the length of track they can lay in one day and d is the number of days.

so we replace L for 7 and d for 17 and we get:

L=196-7x17

which works out to be 77 miles of track remaining to lay.

(b)

well since we want them to have 0 length of track remaining, and they can lay 7 miles of track a day, we can work out d. let's give the formula a bash to get:

d=196-l/L

we then replace l with 0 and L with 7 and get:

d=196/7

which works out to be 28. so it will take 28 days or 4 weeks for the railroad crew to lay 196 miles of track.

Answer:

216

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Am i right?

Answer:

c.10

Step-by-step explanation:

8/3.2 = 2.5 so times 2.5 by 4 to get 10

P.S. Good luck on edg

Answer:

B

Step-by-step explanation:

4 is a lot less than the others

yez

Answer:

answer is A. (f.g) (x) = 6x

Answer:

72 o de 7 y 2

Step-by-step explanation:

7: 7 y 1

2:2y1

72:1 2 3 4 5 6 8 9 12 24 36 y 72

Answer:

Xy-3x

Putting the values of x and y into the expression,

We have 4(5)-3(4)

20-12

8

Answer:

Remember a unit rate is a rate where the the value in the denominator (or second value in a x to y rate) is 1.

Step-by-step explanation:

Answer:

The circumference of the circle is approximately 94 inches.

Step-by-step explanation:

C=2(pi)r

C=2(pi)15

C=30(pi)

C=94.24

Rounded Answer: 94 inches

Answer:

g(t)= -16t^2 +80t

Step-by-step explanation:Should be

A function is a relationship between inputs where each input is related to exactly one output.

The function that can be used to describe the flight of the model rocket is

g(t) = -16t² + 80t.

A function is a relationship between inputs where each input is related to exactly one output.

Example: f(x) = 3x + 1 is a function

x = 1, f(1) = 3 + 1 = 4

We have,

A function that represents the height of an object.

g(t) = -16t² + vt + h

t = time in second

v = Initial velocity per second

h = Initial height

Initial velocity:

v = 80 feet per second

A model rocket is launched off the ground.

This means,

h = 0

Now,

Putting v = 80 and h = 0

g(t) = -16t² + vt + h

g(t) = -16t² + 80t + 0

g(t) = -16t² + 80t

Thus,

The function that can be used to describe the flight of the model rocket is

g(t) = -16t² + 80t.

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Answer:

nothing times 3 is 35 so your sum cant equal 37

Step-by-step explanation:

hope this helps in some way

Answer:

its 10

Step-by-step explanation:

10/3 divided by 2/6 is 10 because you would reciprical the 2/6

then it would be 10/3 times 6/2

10 times 6 is 60

3 times 2 is 6

60/6 is 10

BOOM MATH

Answer:

its a three out of seven then it stays the same

Step-by-step explanation:

Answer:

The answer is 12.044*10^23 molecules of H2O

Answer:

Step-by-step explanation:

y - 6 = 5(x + 8)

y - 6 = 5x + 40

y = 5x + 46

Answer:

50

Step-by-step explanation:

Answer:

hello! :) have a good day!

5 is 10% of 50

If you are using a calculator, simply enter 5×100÷10, which will give you the answer.