Mathematics College

q(x) = –2x+1
r.(x)=x²+2
Find the value of q (r (3)).

Q(x) = 2x+1r.(x)=x+2Find The Value Of Q (r (3)).

Answers

Answer 1
-21

r(3) = 3^2 + 2
= 11
q(11) = -2(11) + 1
= -22 + 1

Related Questions

I bought 5 1/2 yards of fabric. I used 2/3 of the fabric to make curtains. How much fabric did i use?

Answers

Answer:

you used 4 5/6

Step-by-step explanation:

5 1/2 and 2/3 need to be equivalent so change them to 5 3/6 and 4/6.

then subtract :)

hope this helps doll! :3

In a lab a 30% acid solution is being mixed with a 5% acid solution to create a 10% acid solution. What is the ratio
of the amount of the 30% solution to the amount of 5% solution used to create the 10% solution?
1.3
1:4
1.5
1.6
Done
Intro

Answers

Answer:

1:4

Step-by-step explanation:

If x is the volume of 30% acid solution, and y is the volume of 5% acid solution, then:

0.30x + 0.05y = 0.10(x + y)

0.30x + 0.05y = 0.10x + 0.10y

0.20x = 0.05y

x/y = 0.05/0.20

x/y = 1/4

what is the decimal value of 3/5​

Answers

Answer: 0.6

Explanation: it is fairly easy, a fraction is always division so... all you need to do is 3 divided by 5, 3/5=0.6

Answer:

0.6

Step-by-step explanation:

Just divide 3 by 5. Fractions are also basically a division problem.

Hope this helps! :)

Look at the incomplete multiplication problem below.

638 times 56 = 3828. 3828 + question mark = blank

What value is missing?
31,500
31,900
35,280
35,728

Answers

Answer:

B

Step-by-step explanation:

-21x^2+35x=0
Solve for x

Answers

Answer:

Step-by-step explanation:

exact form: x=63/5

an expression equivalent to –8(2s–5)–4

Answers

Answer:

The answer:-16s+40-4

Answer:

-4 x (4s - 9)

Step-by-step explanation:

For the function h (2) = 9+ 6x , what is the domain of function h if the range is
{-12, -3, 15, 24}?

Answers

Answer:

x = 1/6 (h(2) - 9), h(2) element R

456x5 is what I can’t figure this out please help!!

Answers

Answer: 2,280

456 times 5

Answer:

2280

Step-by-step explanation:

Multiply 5 times 2325 it ain't that hard g just use google lol

PLEASE ANSWER I WILL MARK BRAINLEIST


The leg of a right triangle is 2 units and the hypotenuse is 5 units. What is the length, in units, of the other leg of the triangle?

Group of answer choices

3

Square root of 21

Square root of 29

7

Answers

Answer:

It is the Square root of 21

Step-by-step explanation:

Answer is square root of 21

How: a square+b square=C square
C=Hypotenuse
A=leg
5^5-2^2 =21
Then it’s the square root of 21

Jack has let out 40 m of kite string when he observes that his kite is directly above Jill. If Jack is 25 m from Jill, how high is the kite?​

Answers

Answer:

Use this formula:

A^2 + B^2 = C^2

40 is the hypotenuse of the triangle:

 

A^2 + 25^2 = 40^2

A=31.2 meters (Approx)

A quality control manager is inspecting four digital scales to see if they accurately reflect a weight of 0 ounces. The table shows the weight displayed on four empty scales.

Empty Scale Weight Displays
Scale 1
–1 ounce
Scale 2
–2 ounces
Scale 3
0 ounces
Scale 4
–1 ounce

What is the average error in the scale displays?

Answers

Answer:

-1 Ounces

Hope this was helpful!

Answer:

-1 ounce

Step-by-step explanation:

translation is the point (2, −6). At what coordinates is the image of point (−3, −2) located under the same translation?

Answers

Answer:

hey

Step-by-step explanation:

Find the inverse of this function
g(x)=2(x-3)^5

Answers

here you go, let me know if you have a question about the steps

Conversion Formulas
K = Cº + 273

Answers

Her answer is correct I hope that helps

Si tienes 5 manzanas para comer durante la semana y te comes el 20% el primer día cuántas manzanas quedan para el resto de la seman?

Answers

Answer: El o Ella tiene 4 manazanas izquierda comer para el semana

Step-by-step explanation: Si necesitas ayuda con algo más estoy disponible generalmente de 9 a.m. a 3:50 p.m.

The number of apples left to eat are equivalent to 4.

What is percentage?

In mathematics →

a percentage is a number or ratio expressed as a fraction of 100.it is often denoted using the percent sign "%".

Given is that you have 5 apples to eat during the week and you eat 20% on the first day.

Assume the number of apples left are {x}. So, we can write -

{x] = 5 - 20% of 5

{x} = 5 - (20/100) x 5

{x} = 5 - 1

{x} = 4

Therefore,

To solve more questions on percentage, visit the link below -

brainly.com/question/24159063

#SPJ2

{Question in english -

If you have 5 apples to eat during the week and you eat 20% on the first day, how many apples are left for the rest of the week?}

Please help this one will give you extra points

Answers

THE ANSWER IS B

A: 1/3*6,000,000 does NOT equal 18,000,000

C: However, 2/5*6,000,000 does equal 2, yet, $2.4*10^3 is a FALSE STATEMENT and it doesn't make sense

D: Not ALL statements are correct

I think the answer is B

Which expression is equivalent to (fa)(5)?

Answers

Answer:

ylyiky lio

Step-by-step explanation:

Suppose Phil reads a book that contains 16 conspiracy theories. When he researches the theories, he finds that 75% of them are false. How many of the theories are true?

Answers

Answer:

4

Step-by-step explanation:

GEOMETRY Write and solve an equation to find the value of x so that it figures have the same area.

Answers

Answer:

C. x=7 and the expression is (5+x)9=x*(15 3/7)

Step-by-step explanation:

The width of the first shape is 5+x and the length is 9

The width of the second shape is x and the length is 15 3/7

You want the same area of the figures, so they are equal. And the formula for the area of a rectangle is l*w. So...

(5+x)9=x*(15 3/7)

45+9x=(108/7)x

315+63x=108x

63x-108x=-315

-45x=-315

x=7

So, your answer is C.

If (4,-9) is rotated 270° about the origin the new point would be :

A. (-9,-4)
B. (9, 4)
C. (-4,9)
D. (-9,4)

Answers

The correct answer is c -4,9

Prime factorization of 60?

6, or 15,or 3,or 9



please help!!

Answers

Answer:

The real Prime factors of 60 are 2, 3 and 5 so the answer should be 3


When she first purchased it, Soledad's computer had 500 GB of hard drive space. After six months, there
were only 407 GB available. Enter and solve an equation to find the amount of hard drive space that
Soledad used in the first six months. Uses as your variable.
- 500
The equation is
She has used
GB of memory

Answers

Answer:

I think 500-407=93

can some one help me please

Answers

Angle addition postulate. Hope this helps!

3 plus 2 =
wzsxdcfgvbhjnkrdfvgbh

Answers

Answer:

5

Step-by-step explanation:

three plus two equals 5

Answer:

5

Step-by-step explanation:

3+2=5

:3

it took jaivin 18 minutes to jog 4 laps . how many minutes did it to jog each lap at this rate?

Answers

Answer:

4.5 minutes for each lap

Step-by-step explanation:

18 min/ 4laps

simplify to 9min/2laps which equals 4.5 mins/lap

Mr. paulson has been on a train for 4 hours and traveled 320 miles. At this rate, how far will he traveled in 5 hours?

Answers

Answer:

at 5 hours he will have traveled 400 mi

Step-by-step explanation:

320÷4= 80

320=4, then 400=5

hope this helps

What is the solution for this inequality?
8x<-32

Answers

Answer:

8x<-32

x<4

Step-by-step explanation:

divide both of these numbers by 8

Step-by-step explanation:

rhrufh38299917489xjqgs8cjrnjci

Camille has no more than $20.00 to spend each week for lunch and bus
fare. Lunch costs $3.00 each day, and bus fare is $0.75 each ride. Write an inequality for
this situation. Can Camille buy lunch 5 times and ride the bus 8 times in one week?

Answers

Answer:

No, because 5 x 3 is 15 and 8 x .75 is 6.So you add 6 and 15 then you get 21 so she would need an extra dollar

A primatologist believes that rhesus monkeys possess curiosity. She reasons that, if this is true, then they should prefer novel stimulation to repetitive stimulation. An experiment is conducted in which 12 rhesus monkeys are randomly selected from the university colony and taught to press two bars. Pressing bar 1 always produces the same sound, whereas bar 2 produces a novel sound each time it is pressed. After learning to press the bars, the monkeys are tested for 15 minutes, during which they have free access to both bars. The number of presses on each bar during the 15 minutes is recorded. The resulting data are as follows:What is the alternative hypothesis? In this case, assume a nondirectional hypothesis is appropriate because there is insufficient empirical basis to warrant a directional hypothesis. What is the null hypothesis? Using ? = 0.052 tail, what is your conclusion? What error might you be making by your conclusion in part c?
Subject Bar 1 Bar 2
1 20 40
2 18 25
3 24 38
4 14 27
5 5 31
6 26 21
7 15 32
8 29 38
9 15 25
10 9 18

Answers

Answer:

It is statistically significant that mean of difference scores is different from 0

Step-by-step explanation:

Subject    Bar 1      Bar 2      Difference

1                 20          40            20

2                 18          25             7

3                 24          38            14

4                 14           27            13

5                 5            31             29

6                 26          21             -5

7                 15           32            17

8                 29          38            9

9                 15           25           10

10                9             18           9

Mean of difference =[tex]\frac{Sum}{10}=\frac{123}{10}=12.3[/tex]

Standard deviation s =[tex]\sqrt{\frac{(x_i-\bar{x})^2}{n}}=8.93[/tex]

Null Hypothesis : mean of difference scores is 0 : [tex]H_0:\mu=0[/tex]

Alternate Hypothesis : mean of difference scores is different from 0 : [tex]H_a:\mu \neq 0[/tex]

We will use t test for unpaired

[tex]t = \frac{x-\mu}{\sqrt{\frac{s^2}{n-1}}}\\t = \frac{12.3-0}{\sqrt{\frac{8.93^2}{10-1}}}\\t=4.13[/tex]

Level of significance (two tailed) =[tex]\alpha = 0.05[/tex]

Degree of freedom = n-1 = 10-1 =9

Using calculator

The p-value is .002559.

p value < α

So ,we reject null hypothesis

So, It is statistically significant that mean of difference scores is different from 0

At the produce store you can buy 4 bags of bananas for $29.88. How much would it cost if u were to buy 6 bags?

Answers

Answer:

44.82

Step-by-step explanation:

29.88 divided by 4 is 7.47 times 6 is 44.82

Answer:

44.82$

Step-by-step explanation:

4:29.88

6:x

4x=179.28

x=44.82$

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