Mathematics High School

5(x+3)-3x^2 when x is -1.4

Answers

Answer 1

Answer:

The answer would be C.) 2.12

Related Questions

Help please!!!!! No fake answers

Answers

Answer: 13 itk

Step-by-step explanation:

Derek analyzed the relationship between the mean number of points scored per game by a basketball team and the team's mean home attendance for several seasons. Derek uses the function y=−7,628+325.5x to describe the data. In the function, x represents the mean number of points scored per game, and y represents the mean home attendance. If the team's mean number of points scored per game is 60 next season, what does the model predict that the team's mean home attendance will be? The model predicts that the mean home attendance will be _____ .

Answers

Answer:

Step-by-step explanación

0.02

When the mean number of points scored per game next season is 60, the model predicts that the mean home attendance will be 11902

The function that predicts the attendance is given as:

[tex]y = -7628+325.5x[/tex]

When the mean number of points scored per game next season is 60, it means that the value of x is 60

i.e. x = 60

Substitute 60 for x in the function

So, we have:

[tex]y = -7628+325.5 \times 60[/tex]

Evaluate the product

[tex]y = -7628+19530[/tex]

Add -7628 and 19530

[tex]y = 11902[/tex]

Hence, the model predicts that the mean home attendance will be 11902

Read more about linear functions at:

https://brainly.com/question/15602982

WILL GIVE BRAINLIEST !!!! PLS ANSWER THE LINES CORRECTLY !!!

Answers

Answer:

wait whats the question so i can solve it

Step-by-step explanation:

(50 Points)
Which equation combines with the given equation to form a system of equations with the solution x = 3 and y = 9?
x + 2y = 21

Answers

x + 2y = 21
3 + 2(9) = 21
3 + 18 = 21
So I think the equation is 3 + 2(9) = 21

Answer:

It's option C.

Step-by-step explanation:

It's right on edmentum. Also just use substitution. Not that hard.

If I was asked to think of a number and multiply it by 2, I could
write this algebraically as 2x.
Write the following algebraically, using x as your unknown.
"I think of a number, multiply it by 3, add 4 and square the result.

Answers

Answer:

[tex](3x + 4)^{2}[/tex]

Step-by-step explanation:

3 times the number they thought of:

add 4:

3x + 4

square the result:

[tex](3x + 4)^{2}[/tex]

Traci spent $1.19 on a pack of gum and $0.95 on lip balm.

Part A
What was the total amount Traci spent? Use the model to help you.

This image shows 3 hundredths grid next to each other. The first grid is entirely shaded in blue, second grid has 0.19 nineteen hundredths shaded in blue and remaining 0.81 eighty one hundredths shaded in yellow and third grid has 0.14 fourteen hundredths shaded in yellow and remaining are empty.

Enter your answer in the box.

$

00:00

Part B
Select words from the drop-down menus to explain how the model helps find the sum.

The number of full grids shaded is the number of . The number of small squares shaded in the grid is the number of .

Answers

She spent a total of $2.14.

Answer:

A: she spent a total of $2.14

and im sorry beb but i cant really help on part b but i tried for part a

BUT GOOD LUCK AND HAVE A WONDERFUL DAY

-Ary

2x-1/3x+1=6x-1/9x-3

Answers

The answer is x=3

So c is 3

Help plz. 4x^2-10x=84

Answers

Answer:

my brain just died sorry

Step-by-step explanation:

Answer:

x = 6

4x2−10x=84

Step 1: Subtract 84 from both sides.

4x2−10x−84=84−84

4x2−10x−84=0

Step 2: Factor left side of equation.

2(2x+7)(x−6)=0

Step 3: Set factors equal to 0.

2x+7=0 or x−6=0

−7

or x=6

PLEASE HELPP!! ASAPPP

Answers

Answer:

The answer to this question is A

Step-by-step explanation:

Answer: 400,000 gallons

Step-by-step explanation: First find the per minute is 4000 next multiply by 100 minutes and it is 400,000

Solve: 3x = 0.5x^2
x = -6 or x = 0

x = -4 or x = 3

x = -2 or x = 1.5

x = 0 or x = 6

Answers

Answer:

it the 3 one i am sure hope it helps

Find the measure of each angle indicated. HELPPP PLEASE

Answers

Answer:

its a 90degree angle C:

Step-by-step explanation:

srry if this didn't help I can't rlly understand the question but I hope it did help!

Solve for X then Solve for angles 7X-40 and 2X+60

Answers

Answer:

X = 20

Angles are both equal to 100 degrees

Step-by-step explanation:

Assuming that 7x-40 = 2x +60

1. Order of Operations

2. 5x = 100

3. divide 100 by 5

4. x = 20

5. Plug 20 into both equations

6. 7(20) - 40 = 100

2(20) + 60 = 100

7. Both angles are equal to 100 degrees

The production rate of a steel factory is declining due to old machinery. Over the last eight days production has dropped by 1.2 tons. What is the average rate of change in steel production over the eight days? Express the answer in tons per day.

A.
+1.2
B.
-1.2
C.
+0.15
D.
-0.15

Answers

Answer:

I think is A srry if im wrong :c

Step-by-step explanation:

Answer:

-0.15

we want to divide the amount of tons that was lost over the course of 8 days, in which the answer is 1.2 divided by 8 = 0.15, we then get -0.15 because they lost tons

I hope this helps

2r+7=16
what does r =

Answers

Answer:

4.5

Step-by-step explanation:

2*4.5=9+7=16

The value of r in the given linear equation 2r + 7 =16 is 9/2.

What is linear equation in one variable?

A linear equation in one variable is an equation which has maximum of one variable of order 1. It is of the form ax + b =0, where x is the variable.

Solving Linear Equation in one variable

For solving an equation having one variable, the following steps are followed:

Step1: Using LCM, clear the fractions if any.Step2: Simplify both sides of the equation.Step 3: Isolate the variable.

According to the given question

We have, a linear equation in variable r.

2r +7 =16

⇒ 2r + 7 -7 = 16 -7

⇒ 2r = 9

⇒ r = 9/2

Hence, the value of r is 9/2 for the given linear equation 2r + 7 = 16.

Learn more about Linear equation in one variable here:

https://brainly.com/question/11897796

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Simplify the following expression:
3x (7x-4)-(x-8)

Answers

Answer:

=21x2−13x+8

Step-by-step explanation:

=3x(7x−4)+−1(x−8)

=3x(7x−4)+−1x+(−1)(−8)

=3x(7x−4)+−x+8

Distribute:

=(3x)(7x)+(3x)(−4)+−x+8

=21x2+−12x+−x+8

Combine Like Terms:

=21x2+−12x+−x+8

=(21x2)+(−12x+−x)+(8)

=21x2+−13x+8

Answer:

Answer:

I think the answer is 20

I’m pretty sure the answer is 20

What is the product of 417.2 x 0.64?

Answers

Answer:

267.008

Step-by-step explanation:

Answer:

267.008

Step-by-step explanation:

Mr. Olivera wants to buy a bicycle that costs $184 for each of his two children. He plans to save the $9 he usually spends for lunch to buy the bikes. About how many days must he save his lunch money to have enough to buy the bicycles? Will the actual number of days be more or less than the estimate?

Answers

Answer:

19 days its 180 y 20 days its 189

(Hope this helped in some kind of way and can i get brainlest? okay bye have a blessed day!)

The actual number of days required to buy a bicycle will be 20 days.

What is inequality?

Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.

Mr. Olivera wishes to purchase a $184 bicycle for each of his two children. He intends to save the $9 he normally spends on lunch to purchase the bikes.

Let 'x' be the number of days. Then the inequality is given as,

9x ≤ 184

Simplify the equation, then we have

9x ≤ 184

x ≤ 184 / 9

x ≤ 20.44

The actual number of days required to buy a bicycle will be 20 days.

More about the inequality link is given below.

https://brainly.com/question/19491153

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HELP HURRRYYY!!!! If (72)x = 1, what is the value of x? Explain your answer.

Answers

Answer:

1/72

Step-by-step explanation:

72 times x equals 1

to find singular value of x, divide both sides by 72.

x=1/72

Answer:

1/72

Step-by-step explanation:

What’s 123.45 + 67.891
Step By Step?

Answers

Answer:

123.45 + 67.891 = 191.341

Step-by-step explanation:

I don't know really know how to explain but I'll try to. So since 123.45 is the larger decimal so you put it first then below it you put 67.891.(not that it is necessary)

Then add a zero to 124.45. Meaning it will be 123.450. (It is the same number, we just have to add a zero there.)

Add then just add like you normally do. Just try doing it and you'll see.

Kali runs 10 laps around a track each day each lap around the track is 400 m how many days will it take me to run a total of 12

Answers

Answer:

It will take 3 days.

Step-by-step explanation:

Plz help i will mark branliest

Writing Equations From Two Points & Point-Slope Form

Answers

Answer:

problem #2:

y - 4 = 2 ( x + 1) , y - 1 = -1/3x ( x - 2)

problem #3:

slope: 2/3 point: -2, 4

slope: -3 point: -5, -1

Step-by-step explanation:

good luck!

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