✨☆Easy math 9th grade☆✨

Answer:

Is x a vairable? If x is a vairable, then your answer will be 56x. If x is not a vairable, and means a multiplication sign, then your answer will be 56.

Step-by-step explanation:

y= mx+b

where m is the slope , and b is the y intercept

y= 5x -1

Answer:

Your answer would be -144

The value of the function g(x) = 8x² + 4x at g(-4) is 112.

A function can be defined as the outputs for a given set of inputs.

The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.

Given, a function g(x) = 8x² + 4x.

Now to obtain the value of g(-4) we'll simply substitute - 4 in place of x.

which is g(-4) = 8(-4)² + 4(-4).

g(-4) = 8×16 - 16.

g(-4) = 128 - 16.

g(-4) = 112.

learn more about functions here :

https://brainly.com/question/12431044

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Answer:

3750m^2 is it's area hope it helps

Answer:

3750m²

Step-by-step explanation:

75x50=3750

Answer:

[tex]a_{n}[/tex] = 10n + 26

Step-by-step explanation:

[tex]a_{n} = a_{1} + (n - 1)d[/tex]

In your problem d = 46 - 36 = 10   and [tex]a_{1} = 36[/tex]

So,  [tex]a_{n}[/tex] = 36 + (n - 1)10

           = 36 + 10n - 10

           = 10n + 26

Answer:

1961.6 as decimal

Step-by-step explanation:

I divided it

Answer:

Multiply the original price by 75% to find the sale price.

Step-by-step explanation:

100 - 25 = 75%

Answer:

Cost of 110 g bag = $ 0.132

Step-by-step explanation:

As we know ,

1 kg = 1000 g

⇒1000 g = 1 kg

⇒1 g = [tex]\frac{1}{1000} = 0.001[/tex] kg

⇒110 g = 110 (0.001) kg = 0.11 kg

⇒110 g = 0.11 kg

Now,

Cost of 10 kg bag = $12

⇒Cost of 1 kg bag = [tex]\frac{12}{10} = 1.2[/tex]

⇒Cost of 1 kg bag = $ 1.2

⇒Cost of 0.11 kg bag = $ (0.11)(1.2) = $ 0.132

∴ we get

Cost of 110 g bag = $ 0.132

Answer:

18 trucks of delivery

Step-by-step explanation:

Total pallets of concrete blocks ordered = 252 pallets

If each truck can carry 14pallets, then;

1 truck = 14pallets

To determine the number of delivery truck 252pallets can carry, we can express this as:

x truck = 252pallets

Divide both expressions

1/x = 14/252

Cross multiply

14x = 1×252

14x = 252

x = 252/14

x = 18

Hence the manger should expect 1 18 trucks of delivery

Answer:C

Step-by-step explanation: (150,158,166,174,...)

Answer:

c

Step-by-step explanation:

it just is

Answer:

35% of 15=35/100×15=21/4=5.25

Answer:

AYEEEEEEEEEEEEEEEEEEEE

Step-by-step explanation:

Answer:

2/1

Step-by-step explanation:

8/4 which is also 2/1

Answer:

Plant A: y=x+4

Plant B: y=1/3x+6

Answer:

Plant A: 1x + 4 = y; Plant B: 1/3x + 6 = y

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let the equation of the line be x = y - 12

The x intercept occurs at y = 0

Substitute y = 0 into the equation

x = 0 -12

x  = -12

Hence the x intercept of the line is -12

Note that the equation was assumed. The same calculation can be employed for any equation given

Answer:

(-32,0) if ur looking for the coordinates:)

Step-by-step explanation:

Answer:

3.25x + 4 = 30

3.25x = 30-4

3.25x = 26

x= 26/3.25

x = 8 Games

She played 8 games

Answer:

50.528º

Step-by-step explanation:

tanA = BC/BA

tanA = 17/14

A = 50.528º

Answer:

x=9

Step-by-step explanation:

2x + 10 =28 <---- subtract by 10

2x = 18          < divide by 2

x = 9

hey someone else has already answered this!

a. To find the least squares regression equation for a group of (x,y) points:

Step 1: For each point(x,y), we need to calculate x² and xy first.

Step 2: Sum all x, y, x² and xy, which gives us Σx, Σy, Σx² and Σxy

Step 3: Calculate Slope m: m = (NΣxy − Σx Σy)/ N(Σx²) − (Σx)² , here N is the number of data.

Step 4: Calculate Intercept b: b = Σy − m(Σx)/ N

Step 5: Assemble the equation as y= mx+b

Here, we have ∑x = 120, ∑y= 1379, ∑x²= 919.5, ∑xy= 10466 and N= 16

So, m= (NΣxy − Σx Σy)/ N(Σx²) − (Σx)²

=

=

=  

= 6.33

and b = Σy − m(Σx)/ N

=

=

=

= 38.71

So, the least squares regression equation is : y= mx+b ⇒ y= 6.33x +38.71

b. When x= 8, then y= (6.33×8)+38.71 = 50.64 + 38.71 =89.35

The approximate test score of a student who sleeps an average of 8 h a night is 89.35%

EVERYTHING IS FROM sicista on brainly!

Answer:

A way to write the least regression equation that models is data y = mx + b => y= 6.33x + 38.71 and as for problem B when X = 8 then y = (6.33 x 8) + 38.71 = 50.64 = 38.71 = 89.35 so the estimated test score of a student who sleeps eight hours a night is equal to 89.39%

Step-by-step explanation:

Answer:

standard form: ax² + bx + c = 0

x² - 1 = -7x

x² + 7x - 1 = 0

Answer:

is there an actual graph though that would really help

Step-by-step explanation:

Answer:

how is it  0????

Step-by-step explanation:

Answer:

y=-5x+9

Step-by-step explanation:

y=-5x+b

y=4 x=1

4=-5(1)+b

9=b

Answer:

Step-by-step explanation:

x/5=5/2

x=25/2

x=12.5

Answer:

Hot Dogs: 35

Soda: 52

Step-by-step explanation:

35 hot dogs + 52 sodas is 87 items.

35 x $1.50 = $52.50

52 x $0.50 = $26.00

$52.50 + $26.00 = $78.50

Answer:

80

Step-by-step explanation:

5x2x8=80

Answer:

volume= 8*2*5

=80cube

Answer:

y = -25x + 170

Step-by-step explanation:

For the graph equation y = ax + b, we have to find a and b.

Pick two points that are on the grid for best accuracy.

e.g., (2,120) and (6,20)

Then a = (20-120)/(6-2) = -25

b is the y coordinate of the line with the y axis: 170

So the formula is:

y = -25x + 170