Mathematics Middle School

(30 points worth, pls help)
Use the function f(x) to answer the questions. f(x) = −16x2 + 60x + 16 Part A: What are the x-intercepts of the graph of f(x)? Show your work. (2 points)

Answers

Answer 1

Step-by-step explanation:

x intercept y=0

0 = 16x^2 - 60x -16

0 = 16x^2 + 4x - 64x - 16

0 = 4x (4x + 1) - 16 (4x + 1)

0 = (4x - 16) (4x + 1)

4x - 16 = 0 or 4x +1 = 0

4x = 16 or 4x = -1

x = 4 or x = -1/4

(4,0) and ( -1/4,0)

Answer 2

Answer:

x intercept y=0

0

= 16x^2 - 60x -16

0 = 16x^2 + 4x - 64x - 16

0 = 4x (4x + 1) - 16 (4x + 1)

0 = (4x - 16) (4x + 1)

4x - 16 = 0 or 4x +1 = 0

4x = 16 or 4x = -1

x = 4 or x = -1/4

(4,0) and ( -1/4,0)

Step-by-step explanation:

0  = 16x^2 - 60x -16

0 = 16x^2 + 4x - 64x - 16

0 = 4x (4x + 1) - 16 (4x + 1)

0 = (4x - 16) (4x + 1)

4x - 16 = 0 or 4x +1 = 0

4x = 16 or 4x = -1

x = 4 or x = -1/4

(4,0) and ( -1/4,0)

Related Questions

which angles are adjacent to each other ? Select all the apply

Answers

Answer:

angle 3 and 4

angle 2 and 3

Answer:

its the 3rd and 4th one

Step-by-step explanation:

find surface area of the prism pls!!!!! explain too. I really need help!!!

Answers

i believe you have to multiply meaning 6x5x2 it’s 60.

Answer: 104 square inches

Step-by-step explanation:

The surface area of a prism is the sum of the surface are of all of it's faces.

We can turn that into this equation SA =  2(w x l) + 2(l x h) + 2(w x h) where w is width, l is length, h is height, and 2(w x l) is the top and the bottom surface areas, 2(l x h) is the left and right sides, and 2(w x h) is the front and back.

Substitute to get this:  SA =  2(6 x 2) + 2(2 x 5) + 2(6 x 5)

Simplify with multiplication to get this: SA = 24 + 20 + 60

Simplify with addition to get this: SA = 104

Add the unit label and you get 104 square inches.

Mitra lives in San Francisco and takes a plane to Hawaii. When Mitra left the house it was -4°. When the plane landed in Hawaii, Mitra realized it was 32° hotter! What was the temperature when Mitra landed in Hawaii?

Answers

Answer:

28 degrees

Step-by-step explanation:

-4 + 32 = 32 - 4 = 28

hope this helped

28 degrees

All you need to do is add 32 to -4, or take 32-4

iki has a piece of string that she cuts into smaller pieces. This line plot shows the lengths of the pieces. Raj has a piece of string that is 12 as long as Kiki's third-longest piece. (Note: The problem says third-longest piece, not third-longest length.)

How long is Raj's piece of string?

Enter your answer as a mixed numbe
Line plot titled Pieces of String. The number line is labeled Length in inches and goes from 4 and 1 fourth to 5 and 3 fourths by fourths. Thereare 2 marks above 4 and 1 fourth, 3 marks above 4 and 1 half, 2 marks above 4 and 3 fourths, 2 marks above 5, 4 marks above 5 and 1 fourth, 1 mark above 5 and 1 half, and 2 marks above 5 and 3 fourths.
Please no fake links, thanks!

Answers

Answer:19 inches

Step-by-step explanation:

19 inches have a good day

X=5 then 3x + 2 =


Pls help I don't know

Answers

Answer:

17

Step-by-step explanation:

Substitute "x" for "5" in the equation

3(5) + 2

15 + 2

17

Answer:

3x + 2 = 17

Step-by-step explanation:

x = 5

3x + 2

plug in 5 for x

3(5) + 2

multiply

15 + 2

add

17

Therefor

3x + 2 = 17

Which describes all decimals that are rational numbers?
A. the decimal terminates or repeats.
B. the decimal terminates and does not repeat.
C. the decimal neither terminates nor repeats.
D. the decimal repeats and does not terminate.

Answers

Answer: A. the decimal terminates or repeats.

===========================================================

Explanation:

A terminating decimal example would be something like 0.2 which converts to the rational number, aka fraction, 1/5. The word "terminate" means "stop", so it's any decimal that doesn't go on forever.

A repeating decimal is something like 0.33333 where the 3s go on forever, and that converts to 1/3.

If any of these conditions happen, then the number is rational.

--------

For something like pi = 3.14159... where there isn't a pattern and it goes on forever, then we consider this number irrational. The term "irrational" literally means "not rational". So this allows us to rule out choice C.

Choices B and D are partially true, but they only paint half the picture needed to form all rational numbers. Choice A is the most complete statement.

In other words, while choice B is technically true, it leaves out repeating decimals. Choice D is the same way but it leaves out terminating decimals. So we can rule out choices B and D.

The answer is aaaaaaaaaaaaaaaaaaaa

Can someone please help me answer this it's in the screenshots below

Answers

1) Monday
2) 13
3) 10
4) It starts at a higher temperature then slowly decreases, then increases again
5) On sunday the temperature was the lowest, this is because it is the lowest on the graph at 10
6) They should’ve added more numbers between to have a more clear answer
1)Monday
2)13
3)10
4)it start hot then goes down a little bit and the goes up on Friday and goes back down
5)it was on Sunday
6)by having more information about the temperature

please help it's due in a few minutes

Answers

Answer:

x + 90 = 7x

<=> 6x = 90

<=> x = 15

with x = 15 => the measure of each vertical angle is

7 x 15= 105⁰

The answer is x=15 I check twice

Find the solution to the system of equations by graphing.

y= 6-x and y=x-2
A (2, 4)
B (-4,2)
C (4.2)
D no solutions

Help please!!

Answers

The answer is C

Do you need the step by step ?

Answer:

C is the answer :)

Step-by-step explanation:

I hope this answer helps you out!

How many faces have an area of 70 cm2?

Answers

Answer:

3

Step-by-step explanation:

The base of it: 5*14 = 70

The left side: 14*5 = 70

The right side: 14*5 = 70

The two triangle sides are 7*12 = 84 cm^2

3 faces have an area of 70cm^2

helpppp plzzz helllpppp...and give steps plzz

Answers

Yesterday was a nice weekend and we just woke back to the bed so I’m tired lol
I just woke up forgive me

6(5 - 3x) - 5(3x + 2)

Answers

Answer:

Step-by-step explanation:

I conclude that you need to find the value of x

6(5 - 3x) - 5(3x + 2)

30 - 18x -15x -10 = 0

-33x +20 = 0

33x = -20

x = -20/33

The answer is
= −33x+20

if the diameter of a disc is 50 ft, what will be the area of the disc?


Please help me on this.
i'm stuck on it.

Answers

Hey there! Your answer is:

1,963

Step-by-step explanation:

Please mark Brainliest<3

Yo I was stuck on this to but it is really simple it’s
1963

my teacher took my pop tart-

Answers

Wow... Unbelievable Fire that teacher right now >:(
Just…… go buy another one. If you need assistance on which one to chose I personally like the strawberry one them things good.

please help thank youuuu

Answers

Answer:

C

Step-by-step explanation:

I honestly took an educated guess

Negative association or correlations are defined by one variable increasing while the other is constantly decreasing. The correct answer is C

Do the ordered pairs (2, 20), (5, 15), (12, 19), and (14, 13) represent a function?

Answers

Answer:

yes

Step-by-step explanation:

Yes it does because the c values don’t repeat

The ratio of the corresponding linear measures of two similar waffle cones is 2 to 3. The smaller cone has a volume of about 18 cubic inches.

Answers

Answer:

what is joint stock company

Is this what you are looking for?
42.7 in ^3

A fully loaded and fueled spacecraft can weigh close to 4.6 million pounds. What is this weight converted to​ tons?

Answers

the answer to your wis 2300
Spacecraft converted into tons would be 2,300

Which angles are vertical to each other ? Select all that apply.

Answers

Answer:

angles 5 and 7

angles 2 and 4

angles 12 and 10

the answers are 5&7 and 10&12

Question 4 (Yes/No Worth 1 points)
(02.01 LC)
Is the following relation a function?
х y
6 -1
-1 2
4 3
0 3

Answers

Answer:

no, I don't think so.

Step-by-step explanation:

sry if I'm wrong I'm still learning

no it’s not a function

There are many cones with a height of 12 inches. Let r represent the radius and V
represent the volume of these cones.

Plot points that show the volume when r=1, r=2, r=3, and .r=4.

HELP!

Answers

Answer:

If R = 1, ~12.57 is the y. (r is the x.)

If R = 2, ~50.27

If r = 3, ~113.1

If r = 4, ~201.06

Step-by-step explanation:

The formula of a cone is pi * r^2 * h/3

If r = 1, we have pi * 1^2 * 12/3

12/3 = 4

and 1^2 = 1

pi * 1 * 4

4 * pi = ~12.57

if r  = 2, we have an imrpoved formula,

pi*2^2 * 4  (h/3 became 4 since 12/3 = 4)

2^2 = 4

4*4 = 16

pi * 16 = ~50.27

If r = 3

our formula is pi*3^2*4

3^2 = 9

pi*9*4

9*4 = 36

36* pi = ~113.1

If r = 4,

our formula is

pi*4^2*4

4^2 = 16 and 16*4 = 64

pi*64 = ~201.06.

Answer:

If R = 1, ~12.57 is the y. (r is the x.)

If R = 2, ~50.27

If r = 3, ~113.1

If r = 4, ~201.06

Step-by-step explanation:

***no links please***

Answers

Answer:

3(pi)

Step-by-step explanation:

8.33 (repeating 33) is 8.333333...

3(pi) = 9.42477796...

17/2 = 8.5

sqrt(64) = 8

Answer: 3(pi)

Answer:

3 times pi

Step-by-step explanation:

8.33

pi times 3 is about 9

8.5

8

please help. also don't really explain just say the WHOLE answer.

Answers

Answer:

4. 6x + 5y + 18

5. 10x + 21y + 5

3. 7x + 3y + 28

Step-by-step explanation:

Just add terms with the same variable like numbers with x, y or no variable at all

Answer:

4.6x+5y+18

5.10x+21y+6

6.7x+3y+28

Step-by-step explanation:

Hope this helps :) since u didn't want me to explain. I give u the answer

Which of the following triangles have three sides of different length?

A. acute
B. scalene
C.equilateral
D. right

Answers

Answer:

B. scalene

Step-by-step explanation:

A. acute - all angles are less than 90 degrees

B. scalene - all sides are different lengths

C.equilateral - all sides the same length

D. right- one angle is 90 degrees

Answer:

B

Step-by-step explanation:

Scalene Triangle A scalene triangle is a triangle in which all three sides are different lengths. Equilateral A polygon is equilateral if all of its sides are the same length

Hope this helps =)

Quick, can someone help me, please?

Answers

Picture not clear enough.
not clear.. sorry, did you figure it out or still not?

7/15(x+4)+2/15(x+4)=7 1/5

Answers

Answer:

x = 59/3

Step-by-step explanation:

X=59/3
Download the app photo math and it will help

can someone answer these for me please

Answers

Bro just look at the graph.
Hi the answer is hidden in the graph look close and find the pattern it should be very easy for you!

Question: What is x????​

Answers

The answer for x will be 15

Answer:

x= 15

Step-by-step explanation:

because the other side is equal so you want to find what number times 3 will get you 45

jenny picked 40 roses and gave away 10. what percent of roses did she give away?

Answers

The answer is 25%. If you take 40 and multiply by 2.5, it will equal 100. After that you multiply 10 by 2.5 and you get 25.

Answer: 25%

Step-by-step explanation:

Which expression has a value of 31 when x = 6, y = 10, and z = 11?
A.
3xyz

B.
2x + 3y – z

C.
4yz – 2x

D.
xy – 2z

Answers

C explanation I already did this question
the answer is B

2x 6=12
3x10=30
12+30=42
42-11=31
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