Mathematics High School

High School
Please please help please please help me please please help please please help me please please help please please help me please please help please please help me please please help please please help me please please help please please help me please please help please please help me please please AND SHOW YOUR WORK

Answers

Answer 1

Answer:

Step-by-step explanation:

6) y = 2x² + 6x - 80

1) y = 2*x² + 2*3x - 2*40

y = 2 [ x² + 3x - 40]

2) Sum = 3

Product = -40

Factors = (-5) ; 8 {-5 +8 = 3 ; (-5)*8 = -40}

y = 2 [ x² + 8x - 5x - 40]

= 2 [ x(x + 8) - 5(x + 8) ]

= 2 [ (x +8) (x - 5)]

y = 2(x +8)(x -5)

b) y = 0

2(x + 8)(X - 5) = 0

x + 8 = 0 ; x - 5 = 0

x = -8 ; x = 5

(-8) ; 5 are the zeros.

Related Questions

A movie theater uses a cone-shaped container to serve popcorn. The cone has a height of 12 inches and a volume of 16 π in2. What is the radius of the cone?

Answers

Volume can be defined as the capacity of a given container or a certain object.

The radius of the cone is 2 inches.

From the question, we are given the following parameters:

The height of the cone = 12 inches

The volume of the cone = 16 π in³

The formula to find the radius of the cone is given as:

√3V/πh

= √ 3 x 16π / π x 12

= 2 inches

Therefore, the radius of the cone is 2 inches.

To learn more, visit the link below:

https://brainly.com/question/25107622

Which of the following is the measure of side a?
23.3
144
8
16

Answers

Step-by-step explanation:

it is a right-angled triangle, so the side lengths need to fulfill the Pythagoras rule :

c² = a² + b²

where c is the Hypotenuse, the baseline opposite of the 90 degree angle. and a and b (often called legs) are the sides "enclosing" the 90 degree angle.

so, we have

20² = a² + 12²

400 = a² + 144

a² = 256

a = 16

FYI - we could have picked the right answer also by eliminating the wrong given answer options.

as this is a right-angled triangle :

a cannot be longer than the baseline (20).

that eliminates already the first 2 options.

and then look at the picture : a cannot be shorter than b (the other side line (12)).

that eliminates the third option.

Only answer please please

Answers

Answer: D

Step-by-step explanation:

Answer:$22.50

Step-by-step explanation:

The three friends already paid the entrance fee. The question asks how much MORE will they pay for 5 MORE rides (8-3 rides). Since tickets are $1.50 each, and we have 3 people:

($1.50/ticket)*(5 tickets/person)*(3 persons) = $22.50 more.

[Note how the units cancel, leaving just $]

1. What is 3/4 divided by 1/6

Answers

Answer:

9/2 or 4 1/2

Step-by-step explanation:

3/4 ÷ 1/6 = 3/4 × 63/4 × 6 = 18/418/4 = 9/29/2 = 4 1/2

Therefore, the answer is 9/2 or 4 1/2.

Answer: 3

Step-by-step explanation:

3/4 ÷ 1/6

3/4 × 6/1

Divide 4 and 6 by 2

3/2 × 3/1

3 × 3 / 2 × 1

6 / 2 = 3

HEY THERE!! CORRECT ANSWER+EXPLANATION SHALL BE MARKED BRAINLIEST+38POINTS

Thanks xx)

Answers

Answer:

Answers - d and e

Step-by-step explanation:

A surd is basically an irrational number, or a number that is not a whole number. (Surd examples - 1.2938, 5.3108)

The square root of 15 is between 3 and 4 (not a whole number) and the square root of 30 is between 5 and 6 (not a whole number)

hope this helps

Answer:

Claiming points again since all these answers are right, thank you yet again.

Step-by-step explanation:

⏁⊑⏃⋏☍ ⊬⍜⎍ ⎎⍜⍀ ⏁⊑⟒ ⌿⍜⟟⋏⏁⌇ ⎅⟒⏃⍀ ⎎⍀⟟⟒⋏⎅, ⟟ ⏃⋔ ⎎⍜⍀⟒⎐⟒⍀ ⟟⋏ ⊬⍜⎍⍀ ⎅⟒⏚⏁.

How many solutions does this nonlinear system of equations have?
A. 1
B. 4
C. 0
D. 2

Answers

Answer:

Step-by-step explanation:

Answer:

its 2

Step-by-step explanation:

In triangle abc ac=8cm, line bm is a median

Answers

Answer:

In triangle ABC, centroid D is on the median line segment AM.

Step-by-step explanation:

If AB=13cm,BC =13cm and AC=10cm, calculate: the height BM of the triangle. In triangle ABC, centroid D is on the median line segment AM.

hope i helped

The perimeter of a rectangular field is 358 m.
If the length of the field is 96 m, what is its width?

Answers

Answer: 83 meters

Step-by-step explanation:

The perimeter of a rectangle is 2l + 2w, where l is the length and w is the width.

2(96) + 2w = 358

192 + 2w = 358

2w = 166

w = 83

Hope it helps :) and let me know if you want me to elaborate.

Find the gradient and intercept on the x and y axes of the straight line with the following equation.

y + 5x = 13

Answers

Answer:

gradient is 5

Step-by-step explanation:

x intercept, replace y with 0

y +5x= 13

0+ 5x =13

0 - 13= -5x

-13= -5x

-13/-5 = -5x/-5

x = 13/5

y intercept, replace x with 0

y+5x=13

y+5(0)=13

y+0=13

y =13

What is the slope of the line on the graph?
Enter your answer in the box.

Please help me!

Answers

Answer:

Step-by-step explanation:

We can use the points on the line to find the slope

(0,-1) and (1,5)

Using the slope formula

m = ( y2-y1)/(x2-x1)

= (5 - -1)/(1-0)

= (5+1)/(1-0)

= 6/1

= 6

Answer:

m = 6 units

Step-by-step explanation:

To get from point (0, -1) to point (1, 5) that are on the line we have to go up 6 units and 1 unit to the right

slope = rise /run = 6/ 1 = 6

if i had 475 connolies and got left with 24 and i sold them for 2.50 how much money did i make.

Answers

1127.50 money

475-24=451
451 times 2.5

If x=√7/5 and 5/x=p√7 find p
Plz tell fast
I will mark as branliest

Thank you

Answers

Replace x with √7/5

5/√7/5 = p √7

Divide both sides by √7

P = 5/√7/5 /√7

P = 25/7

Answer: p = 25/7

the sum of two numbers is 21 the second number is six times the first one

Answers

Answer:

18+3

Step-by-step explanation:

3x6= 18

and 18+3=21

Cantaloupes are four for $9, how many can you buy for $25?

Answers

You can buy 2

Explanation
25$/9$=2.8 but you can’t buy .78 of a cantaloupe

Write 19/25 in decimal form.

Answers

0.76 19 divided by 27= 0.76

I need help with these 2 problems I cant figure out.

Answers

I started by labeling the right angle (Angle C) 90º. Next, I wrote down everything in one equation.

2x + 90 + 3x - 20 = 180º (180 degrees in a triangle)

Next, I add 20 on both sides.

2x + 90 + 3x = 200º

I combine like terms (2x and 3x)

5x + 90 = 200º

I subtract 90 from both sides.

5x = 110º

Divide 110 by 5 to get x.

x = 22

======

For problem two, I label all the angles I know.

49º + 80º + r = 180º

I add 80 and 49.

129º + r = 180º

I subtract 180 and 129 and get 51º, which is your angle for R.

For angle X, you know that angle R plus angle X equals half of a circle, which is 180º

We know from before that 129º is 180º without R, so X is 129º

I hope this helps! Let me know if I'm wrong!

help plz i will give brainliest

Answers

Answer:

(If needed explanation ask in the comments! ty)

Hope This Helps! •v•

I need help with my Algebra 1 ugh plz help! Sorry there’s a typo

Answers

Answer:

2 is x>3

3 is x ≤ −9/4

4 is x<25

that all i could do but if you need more help go to mathwey

Step-by-step explanation:

Help help help help help help help

Answers

9514 1404 393

Answer:

1400 in 2020

Step-by-step explanation:

The number of students is increasing by 100 each year, so in 3 more years, the number will be 1100 +3×100 = 1400 students in 2020.

A group of engineers developed a new design for a steel cable. They need to estimate the amount of weight the cable can hold. The weight limit will be reported on cable packaging. The engineers take a random sample of 44 cables and apply weights to each of them until they break. The 44 cables have a mean breaking weight of 778.1 lb. The standard deviation of the breaking weight for the sample is 15.5 lb.

Find the 99% confidence interval to estimate the mean breaking weight for this type cable.

( , )

Answers

Answer:

372.r2

Step-by-step explanation:

The p/q form of 0.4277777....... ,9 # 0 is 77/180 ( ) 180 43 90 37 90

Answers

Answer:

77/180

Step-by-step explanation:

x = 0.42777....

Multiply by 1000 (the number of digits in decimal)

1000x = 427.7777......

100x = 42.7777...... {Now subtract}

900x = 385

x = 385/900

x = 77/180

Evaluate. -1/4(d+1) < 2
Please show how

Answers

Answer:

-1/4 (d+1)< 2

(d+1) × -1 < 2×4

(d+1) × -1 < 8

-d - 1 < 8

-d < 8 + 1

-d < 9

d > -9

d = { -8, -7, -6....., 0, 1, 2, 3, 4,....}

Step-by-step explanation:

brainliest plz

An auto shop charges a customer an equal amount for each new tire purchased plus an additional fee for an oil change.
The function C(t) = 87t +32 represents the total cost, C, of getting an oil change and purchasing t, tires.
What does the number 87 represent in the function?
A The slope and the cost per tire purchased.
B The slope and the fee for an oil change.
The y-intercept and the cost per tire purchased.
The y-intercept and the fee for an oil change.

Answers

The cost per unit of the auto shop function is the slope of the function

87 represents the slope and the cost per tire purchased

The function is given as:

[tex]\mathbf{C(t) = 87t + 32}[/tex]

A linear function is represented as:

[tex]\mathbf{C(t) = mt + b}[/tex]

Where:

m represents the slope or the unit rate.

So, by comparison:

[tex]\mathbf{m = 87}[/tex]

This means that 87 represents the slope and the cost per tire purchased

Answers

I found this on another question made before

What is the slope of the line graphed below

Answers

Answer:

mx + y = c slope = - 4 and y - intercept = 2 , then the equation of line is mx + y = c .

Step-by-step explanation:

If I am wrong sorry If I am right mark me brainliest

I was not taught this lesson in class today.

Answers

Answer:

Step-by-step explanation:

No slope is given so your slope is 0. Since both have no slope, they are both flat and therefore parallel

Can you guys tell me the answer to this question?

Answers

Answer:

I get the answer 52°......................

Solve the equation |p − 8| = 4.

Answers

Answer:

p (4;12)

Step-by-step explanation:

lp - 8l = 4

---------------

p - 8 = 4

p = 12

---------------

- p + 8 = 4

p = 4

--------------

P: (4,12)

Answer:

P = -6 hope it helps

Step-by-step explanation:

help pls?? answer for me??f

Answers

ANSWER

C PO SANA MAKATULONG PO YAN

what is the answer to∠X≅∠X

Answers

Answer: ∠A ≅ ∠A; reflexive property

Step-by-step explanation: found it online :)

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