Determine the points of intersection of the given
functions.
y=-x2 + 3x + 20
y = -2x + 15
Describe the features of the graphing calculator you
would choose and why.

Answers

Answer 1

Answer:

New questions in Mathematics

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Step-by-step explanation:


Related Questions


Using the line of best fit for the above data, what is the approximate difference between the actual value for x = 10 and the predicted value for x= 10?
A. 1.60
B. 1.65
C. 1.70
D. 1.75

Answers

Answer:

I dont know

Step-by-step explanation:

I NEED HELP ASAP this question is worth 10 points

Answers

Answer:

X       5         10        15         20          15

Y      25        50        75        100       125

Y = 5X

k = 5

option C

???????????????….?????…..?????????

Answers

Answer:

C

Step-by-step explanation:

Sine equals opposite over hypotenuse, which would be y/19. To find y multiply by 19 to get y=19sin33°

Correct answer: 19cos33°

The values given are 19 (hypotenuse), y (adjacent side), and the angle (33°)

The formula for cosine is adjacent side divided by the hypotenuse

After plugging in the values given into the formula cosx=ad/h, we have:

Cos33°=y/19 Here, we need to isolate the Y

And, the final result is
19Cos33°= Y

So, the correct answer is the letter D

HELPPPPPP ITS URGENT!!!!!!!!!!!!!!!!!
Thomas is going to deposit $840 in an account that earns 7.5% interest compounded annually. His wife Sheril will deposit $1,250 in an account that earns 6.9% simple interest each year. They deposit the money on the same day and make no additional deposits or withdrawals for the accounts. What statement is true concerning Thomas' and Sheril's account balance after 5 years?

a
Thomas' account will have about $475.32 less than Sheril's account.
b
Sheril's account will have about $431.25 less than Thomas' account.
c
Sheril's account will have about $475.32 less than Thomas' account.
d
Thomas' account will have about $431.25 less than Sheril's account.

Answers

Answer:

A

Step-by-step explanation:

trust

Answer:

The answer is A Thomas' account will have about $475.32 less than Sheril's account

Step-by-step explanation:

Its A because 840 Plus 7.5% Is 903 which means And 1,250 plus 6.9% is 1,336.25 so Sheril has $475.32

What equation can I
use to find 42×51

Answers

Answer:

2142

Step-by-step explanation:

someone please helppp

Answers

Answer:

D. 10cm

Step-by-step explanation:

Because 20-10=10

Pls mark brainliest

I would say ten cm but I’m not totally sure

Describe the event as impossible, unlikely, equally likely, likely, or certain.

The probability of tossing a 6-sided number cube and rolling a number less than 1 _________.​

Answers

Answer:

impossible

Step-by-step explanation:

I would say impossible

A 2-gallon bucket of paint costs $58.00. What is the price per quart? $​

Answers

Answer:

7 dollars and 25 cents

Step-by-step explanation:

there is 8 quarts in 2 gallons then divide 58 dollars by 8 and you get 7 dollars 25 cents

Division is one of the four fundamental arithmetic operations. The price per quart is $7.25 per quart.

What is Division?

The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.

Given that A 2-gallon bucket of paint costs $58.00. Therefore, the price per gallon is,

Price per gallon = $58/2

Since a gallon is equal to 4 quarts. Therefore, the price per quart is,

Price per quart  = $58/(4×2) = $7.25 per quart

Learn more about Division:

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10-What is the length of arc AB in circle Q?

Answers

Answer:  57.2

Step-by-step explanation:

Answer: C

Step-by-step explanation:

The length of the arc AB will be 5/18 of the circumference of the circle, which equals 2πr

The function F is defined by F(x)= 12/x + 1/2
Use this formula to
find the following values of the function:
F(k)
F(a/2)
F(x-1)
F(2x+3)
F(x+h)

Answers

Answer:

F(2x+3) = 12/(2x+3) +1/2

Step-by-step explanation:

Put the argument of the function where the variable is. You can simplify if you want, but the original function definition is not simplified, so we assume it is not required.

F(x) = 12/x + 1/2

Put (2x+3) where x is:

F(2x+3) = 12/(2x+3) + 1/2

12/k+1/2

24/a+1/2

12/x-1+1/2

12/2x+3+1/2

Answers should be correct, respectively (to the order of ur questions)

Plz help this is almost due

Answers

Answer:

possibly b,c,d

Step-by-step explanation: B, C, D because a doesn't have a -t, my teacher taught me to see which one is different.

Pls anyoneee I neeed help

Answers

Answer:  11 goes in the blank in the denominator

The probability as a fraction is 5/11

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

Explanation:

There are 250 red and 300 blue. This gives 250+300 = 550 total marbles.

Divide the number of red (250) over the number total (550) to get the fraction 250/550. Reduce this fraction by dividing both parts by 50. Note how 50 is the GCF of 250 and 550.

Let A = 250 and B = 550.

A/GCF = 250/GCF = 250/50 = 5 which is the numerator already written for usB/GCF = 550/50 = 11 will go in the blank in the denominator

The fraction A/B = 250/550 fully reduces to 5/11.

We can think of it like saying "There are 5 red marbles out of 11 total".

5/11 = 0.4545 = 45.45% approximately

In the diagram, LM is parallel to IK. Find the length of LM, to the nearest tenth of a metre.

Answers

Answer:

Step-by-step explanation:

The sdgytsssfjndd hdjdensbdnd did dudnebshds didn’t did

Please help on this I am confused

Answers

Answer:

400

Step-by-step explanation:

okay so 400 because you find the height and the base sides and you get the answer, sorry if incorrect

A woman shoots her husband, then holds him underwater for five minutes. Next, she hangs him. Right after, they enjoy a lovely dinner. Explain.

Answers

Answer:

She took a photo of him and developed it in the dark room.

Step-by-step explanation:

Answer:

The woman is obviously bats%!t insane.

Step-by-step explanation:

What else is there to say..

Solve for x.
x = [?]
4x + 3
2x + 9

Answers

Answer:

18x

Step-by-step explanation:

4x+3=7x

2x+9=11x

7+11x=18x

-5x’2+9x-3=0

Descriminant:

Number of real solution:

Answers

Answer:

2 x ^2 − 2 x + 4 = 0

x ^2 − 2 x + 4 = 0

2 x ^2 − x = 0

Step-by-step explanation:

HELP! THIS IS DUE TODAY, and i will mark brainlest!

Answers

Answer:

Your answer is the 4th answer.

Step-by-step explanation:

In order for something to be a function, each output can only have one input. Because the output 4 is listed twice, this is not a function.

Answer:

the third one

Step-by-step explanation:

it would have to y values for the one x value 3 so it would not pass the pencil line test

Round the number 178.572 to the ones place

Answers

Answer:

178.570

Step-by-step explanation:

Answer:

it stays the same so 178.572

Step-by-step explanation:

Sarah Goes To Dinner With 2 Of Her Friends. The Total Cost Of Dinner Is $61.92 Her Friends Pay 2/3 of the total cost. Exactly How Much Does Sarah Pay ?

Answers

Answer:

$20.64

Step-by-step explanation:

if you cut 61.92 in to thirds

61.92/ 3= 20.64

so if Sarah's friends payed 2/3 of the bill Sarah herself payed 1/3 which is $20.64

brainliest goes to whoever answers the question correctly also if you want more points answer my other questions

Answers

Answer:

function is non linear and decreasing

Step-by-step explanation:

between x=4 and x=6 the line has a negative slope, meaning that it is decreasing, and it can't be a linear function because a linear function a function whose graph is a straight line.

hope this helps!

The students in Mrs. Langford‘s fourth and sixth. Algebra class took the same test results of the scores are shown in the following table based on this data which class has the largest friend of test scores explain

Answers

Step-by-step explanation:

bdhdvdbdbdnduehbydgddcdjsogd

What is Linda’s variation among all 10 days?
Please explain how

Answers

Answer:

+10 + 10 + 10 -2 - 8

Step-by-step explanation:

Solve the varible :
1: -5z + 8 = 33
2: -4b - 7 = 37
3: 8x + (-9) = 45
4: 6c + 7 = -29

Answers

Answer:

1: -5z + 8 = 33

-5z=33-8

z=-25/5

z=-5

2: -4b - 7 = 37

-4b=37+7

b=-42/4

b=21/7

3: 8x + (-9) = 45

8x=45+9

x=54/8

x=27/4

4: 6c + 7 = -29

6c=-29-7

c=-36/6

c=-6

Help me with this please!!!!!!!!

Answers

d = 12.25

Step-by-step explanation:

d = √(x2 - x1)^2 + (y2 - y1)^2 + (z2 - z1)^2

P1(0, 0, 0) P2(-1, 7, -10)

Substitute the values in the above equation and you will get

d = √(-1 - 0)^2 + (7 - 0)^2 + (-10 - 0)^2

= √(1 + 49 + 100)

= √150

= 12.25

Answer:

12.25

Step-by-step explanation:

A Ferris wheel has a radius of 50 feet, and its center is 60 feet off the ground. How many points on the Ferris wheel are: 30 feet off the ground?

Answers

Answer:

Step-by-step explanation:

The answer is 6

The number of points are:

2 points for 30 feet off the ground. 1 points for 110 feet off the ground. 0 points for 5 feet off the ground.What is Circumference?

The measurement of the circle's perimeter, also known as its circumference, is called the circle's boundary. The region a circle occupies is determined by its area.

Circumference (or) perimeter of circle = 2πR

A Ferris wheel has a radius of 50 feet, and its center is 60 feet off the ground.

So, DA = r = 50 feet

OB = 30 feet

<AOC = 2 <AOB

          = 2 x arc sin (4/5)

and, Circumference = 2πr = 100π

Then, AC = (2π - 2 arc sin (4/5)) . 50

Let there are total p points

So, A= (1- arcsin (4/5)/π )p

Thus, 2 points for 30 feet off the ground.

and, 1 points for 110 feet off the ground.

and, 0 points for 5 feet off the ground.

Learn more about Circumference here:

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The circle below is centered at the origin and has a radius of 7. What is its
equation?
10
-10
10
- 10
O A. x²-7=7
B. x2 + y2 = 49
c. x2 - y2 = 49
D. x² + 7 = 7

HELPPP ASAPPP

Answers

Answer:

x^2 +y^2 = 49

Step-by-step explanation:

The equation for a circle is

(x-h)^2 + (y-k)^2 = r^2  where (h,k) is the center of the circle and r is the radius

( x-0)^2 + (y-0)^2 = 7^2

x^2 +y^2 = 49

4*
Which property of real numbers is illustrated below?
12(x + 4) =12x + 48
A.
Distributive property of multiplication
B. Distributive property of addition
C. Associative property of multiplication
D. Associative property of addition​

Answers

A: Distributive property of multiplication

Answer

Step-by-step explanation:

If an exponential function grows by a factor of (2.5), what percent is being
added?

2.5%
250%
150%
25%

Answers

Answer:

Hello! answer: 250%

Hope that helps!

A cell phone company advertises that their data plan costs "0.02 cents" for every kilobyte of data. Corinne used 1000 kilobytes of data. Using the advertised price, determine how much Corinne owes on the data plan.

Answers

0.02 x 1000 = 20, which is your answer
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