If s ( x ) = 2 - x² and t ( x ) = 3x, what is s ( t ( -7 ) )?

Answers

Answer 1

Answer:

s (t (-7))=?

Step-by-step explana

s (t (-7))=  -7s t


Related Questions

If f(x)=x+1, find f(x+10).

Answers

Answer:

x + 11

Step-by-step explanation:

Substitution!

Since you're trying to find f(x+10), you would replace each x in the equation (in this case only one) with x+10.

So instead of

[tex]x+1[/tex]

it would be

[tex](x+10)+1 = x + 10 + 1 = x + 11[/tex]

Please help, will award brainliest

Answers

Answer:

The answer is B

Step-by-step explanation:

You would plug in 1 wherever there is an x in the equation

A group of friends bought 7 tickets to a dog show for 30$ each. How much did they spend on the tickets?

Answers

Answer:

$210

Step-by-step explanation:

30*7= 210

Answer: $210

Step-by-step explanation:

the sum of seven and the product of two and a number x

Answers

Answer:

          7 + 2x

Step-by-step explanation:

the product of two and a number x is 2•x

so the sum of seven and the product of two and a number x is:

7 + 2x

Janie uses a reflecting tool to reflect Point B onto Point A. Which of the following statements are true/false about the line of reflection?
Reflection line is perpendicular to AB. (T/F) true

Reflection line does not bisect AB. (T/F) false

Reflection line passes through the midpoint of BA. (T/F) true

Reflection line forms two equal angles with segment AB. (T/F)true

Answers

Answer:

1. True 2. False 3. True 4. True

Step-by-step explanation:

Answer:

You are right

Step-by-step explanation:

You are right


Which property would you use first, in solving the equation -4/5x = -2?

Answers

Answer:

Multiplying each side by the denominator

Step-by-step explanation:

Helppppp meeee:((((




Estimation
Fruit Prices
Karla is making fresh grape jelly. She buys 18.7
pounds of grapes
Cost (per pound)
Estimate the total cost.
$2.78(18.7)
ples
$1.89
Karla will spend about
on grapes
$5.28
$19
$36
$40
$278
$60

Answers

Answer:

Karla will spend $60 on grapes.

Step-by-step explanation:

Answer:Karla is making fresh grape jelly. She buys 18.7 pounds of grapes.

Estimate the total cost.

$2.78(18.7)

Karla will spend about

$60

on grapes.

Step-by-step explanation:i did the test

Please help me, its due today!!!

Answers

Answer:

532$

Step-by-step explanation:

14% of 600 is 84 $

14% of 1200 is 168$

140 per day and there is 2 days so 140x2

add them all up and you get 532

f(x)=-2 find x if f(x)= 32= 11
help

Answers

Answer:

B

x = -17

Step-by-step explanation:

so essentially what it is saying is that x = -2

SO

3(-2) - 11

-6 - 11

-17

The super speedway at Daytona International Speedway is 2.5 miles long. The road course there is 1.4 times as long as the super speedway. How long is the road course?

Answers

Answer:

3.5 miles

Step-by-step explanation:

From the question, we have the following information:

The super speedway at Daytona International Speedway is = 2.5 miles

long

The road course there is = 1.4 times as long as the super speedway.

How long is the road course?

The length of the road course is calculated as:

1.4 × length of the super speedway

1.4 × 2.5 miles

=>3.5 miles

Therefore, length of the road course I s 3.5 miles.

5(x - 2) + 2x = 11 can someone help me solve

Answers

Answer:3

Step-by-step explanation:5(x-2) +2x=11

5x-10+2x=11

7x-10=11

7x=21

X=3

Need 13&14!! ASAP, will put Brainliest

Answers

Answer:

13- A 14-B

Step-by-step explanation:

You take the formula (x1+x2/2, y1+y2/2) and plug in accordingly. For instance, when you plug the values in for 13, you would get:

x1+-9/2, y1+7/2= -8,2

All you have to do from there is a simple guess and check or plug in each number from the multiple answer choices you have. You should then get A (-7,-3) Do the same with 14, in which you should get B (11,-20)

Sorry for taking so long to answer but hope this kind of helps.

Which of the following is a proportion? 9/12= 8/10 3/4= 9/12 6/8= 8/12 12/18= 9/16

Answers

Answer:

It would be 3/4=9/12

Step-by-step explanation:

The proportion relationship of the given ratios is 3/4= 9/12 thus option (B) is correct.

What are the ratio and proportion?

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

As per the given,

In the fractions, 3/4

Multiply by 3 on the numerator and denominator.

3/4 x 3/3 = 9/12

3/4 x constant = 9/12

Remove constant.

3/4 ∝ 9/12

Hence "The proportion relationship of the given ratios is 3/4= 9/12".

For more information about ratios and proportions,

brainly.com/question/26974513

#SPJ2

Bethany’s mom made her a sandwich with a length of 8 cm and a height of 6 cm. If she cuts it in half diagonally as shown, what is the length of the cut edge?

Answers

Answer:

10

Step-by-step explanation:

a^2 + b^2 = c^2 (Pythagorean Theorem)

The length is 8(a)

The width is 6(b)

C is the unknown

8^2+6^2 = 100

then you need to square root the 100

[tex]\sqrt{100} = 10[/tex]

A person came to work at 7:30am went out at 11:45am had lunch came in at 12:30pm and left at 5:15pm. How many hours did this person work?

Answers

Answer:

9 hours

Step-by-step explanation:

if they came in at 7:30 a.m and leaves at 11:45 a.m they have been there for 4 hours and 15 minutes.

If they arrive at 12:30 p.m and leave at 5:15 p.m they have been there for 4 hours and 45 minutes

so in total they have been there for 9 hours

plz some1 help my sister out ! thank you :)

Answers

0.8? 24 divided by 30 (round the answer to 9 digits after the decimal point)

Answer:

0.8

Step-by-step explanation:

24 divided by 30 = 0.8

That is 80% of the days.

As a decimal though, it is 0.8.

Hope this helps!

. If f(x) = 3x - x, what is the value of f(7 - 2)?

Answers

Answer:

10

Step-by-step explanation:

f(x) =3x-x=2x,

f(7-2)=f(5)= 2*5=10

Solve for y: 2x + 5y =-10 Write your answer in slope-intercept form.​

Answers

Answer:m= 2/5

Step-by-step explanation:

Solve the equation-3y = 21 using inverse operations. What is the inverse operation step? What is the solution?

Answers

Answer:

Y=-7

Step-by-step explanation:

The solution to the equation -3y = 21 is y = -7.

To solve the equation -3y = 21 using inverse operations, we want to isolate the variable y by performing the inverse operation.

Now, the inverse operation of multiplication by -3 is division by -3.

By dividing both sides of the equation by -3, we can isolate y.

Let's perform the inverse operation:

(-3y) / -3 = 21 / -3

y = -7

Therefore, the solution to the equation -3y = 21 is y = -7.

Learn more about Equation here:

https://brainly.com/question/29657983

#SPJ6

20 is 60% of what number

Answers

Answer:

33.33

Step-by-step explanation:

60% of 33.33 is 20. 100% of 33.33 is 33.33, therefore 60 percent of 33.33 equals 20.

Answer:

[tex] \huge{ \boxed{ \tt{33.33}}}[/tex]

Step-by-step explanation:

[tex] \star{ \: \sf{ \: Suppose, \: the \: number \: be \: x}}[/tex]

[tex] \star \: \sf \: Create \: an \: equation \: and \: solve \: for \: x[/tex]

[tex] \underline{ \underline{ \mathfrak{lets \: solve}}} : [/tex]

[tex] \sf{ \: 60\% \: \: of \: \: x \: = 20}[/tex]

[tex] \text{Step \: 1} : \sf{ \: Convert \: percentage \: ( \%) \: into \: fraction}[/tex]

[tex] \sf{To \: do \: so, \: Divide \: it \: by \: 100 \: and \: remove \: the \: \% \: symbol. \: }[/tex]

[tex] \sf{Then, \: Simplify \: the \: fraction \: to \: its \: lowest \: term.}[/tex]

[tex] \hookrightarrow{ \sf{ \frac{60}{100} x = 20}}[/tex]

[tex] \hookrightarrow{ \sf{ \frac{ \cancel{60} ^{ \: \: 3} }{ \cancel{100} \: ^{ \: 5} } x = 20}}[/tex]

[tex] \hookrightarrow{ \sf{ \frac{3}{5}x = 20}} [/tex]

[tex] \hookrightarrow{ \sf{0.6x = 20}}[/tex]

[tex] \text{Step \: 2} : \sf{Divide \: both \: sides \: by \: 0.6}[/tex]

[tex] \hookrightarrow{ \sf{ \frac{0.6x}{0.6} = \frac{20}{0.6}}} [/tex]

[tex] \text{Step \: 3} : \sf{Calculate}[/tex]

[tex] \hookrightarrow{ \sf{x = 33.33}}[/tex]

The required number is 33.33

Hope I helped!

Best regards! :D

~[tex] \sf{TheAnimeGirl} [/tex]

1. N - 80 = 40 2. 15n = 30 3. N + 284 = 350 4. 6 + 9 = 3 x n 5. N divided by 3 = 6 +1 6. 12 - 8 = n divided by 5 7. 58 x 6 = n - (723 + 327) 8. 4n + 12 = (7 + 9) x 2

Answers

Answer:

1. [tex]N=120[/tex]

2. [tex]n=2[/tex]

3. [tex]N=66[/tex]

4. [tex]n=5[/tex]

5. [tex]N=21[/tex]

6. [tex]n=20[/tex]

7. [tex]n=1398[/tex]

8. [tex]n=5[/tex]

Step-by-step explanation:

1.

[tex]N-80=40[/tex]

[tex]N=40+80[/tex]

[tex]N=120[/tex]

2.

[tex]15n=30[/tex]

[tex]\dfrac{15n}{15}=\dfrac{30}{15}[/tex]

[tex]n=2[/tex]

3.

[tex]N+284=350[/tex]

[tex]N=350-284[/tex]

[tex]N=66[/tex]

4.

[tex]6+9=3\times n[/tex]

[tex]15=3n[/tex]

[tex]\dfrac{15}{3}=n[/tex]

[tex]n=5[/tex]

5.

[tex]\dfrac{N}{3}=6+1[/tex]

[tex]\dfrac{N}{3}=7[/tex]

[tex]N=7\times 3[/tex]

[tex]N=21[/tex]

6.

[tex]12-8=\dfrac{n}{5}[/tex]

[tex]4=\dfrac{n}{5}[/tex]

[tex]4\times 5=n[/tex]

[tex]n=20[/tex]

7.

[tex]58\times 6=n-(723 + 327)[/tex]

[tex]348=n-1050[/tex]

[tex]348+1050=n[/tex]

[tex]1398=n[/tex]

8.

[tex]4n+12=(7+9)\times 2[/tex]

[tex]4n+12=16\times 2[/tex]

[tex]4n+12=32[/tex]

[tex]4n=32-12[/tex]

[tex]4n=20[/tex]

[tex]n=\dfrac{20}{4}[/tex]

[tex]n=5[/tex]

Therefore, the solutions are 1. [tex]N=120[/tex]

2. [tex]n=2[/tex]

3. [tex]N=66[/tex]

4. [tex]n=5[/tex]

5. [tex]N=21[/tex]

6. [tex]n=20[/tex]

7. [tex]n=1398[/tex]

8. [tex]n=5[/tex]

Answer:

HE IS RIGHT

Step-by-step explanation:

I don't understand this or i dont know the answer

Answers

Answer:Not clear

Step-by-step explanation:

5
Write the decimal expansion for
9

Answers

Answer:

I believe the answer is 0.55

Step-by-step explanation:

divide5/9

Malon owns a corn field and has placed fences around four polls, A, B, C, D that delimit the edges of the field. He needs to drive around the field every day to check whether anybody has tried to break in. The four poles are located at:

A (6,5)
B (16,5)
C (16,-4)
D (6,-4)

How many miles will Malon drive if he starts at pole A and drives around the entire border of the field?

Answers

C is the answer I believe

2(4s-16)-5s= -5 What is S?

Answers

8s-32-5s=-5
3s=-5+32
s=27/3
s=9
I hope that was helpful

Answer:

s=9

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    2*(4*s-16)-5*s-(-5)=0

Pull out like factors :

  4s - 16  =   4 • (s - 4)

Pull out like factors :

  3s - 27  =   3 • (s - 9)

3 • (s - 9)  = 0

Solve  :    s-9 = 0

Add  9  to both sides of the equation :

                     s = 9

Idk if this is confusing but I know the answer.

Need help on 12 please!

Answers

Answer:

False

Step-by-step explanation:

√10 * 3 = 3√10

√10 * 3 does not equal √30


Find a fraction in between 21/34 and 34/55

Answers

Answer:

A fraction between that is 2311/3740

Step-by-step explanation:

This is because the denominator is simplified into one number and the fraction is taken from there.

Answer:

2311/3740

Step-by-step explanation:

34 = 2×17

55 = 5×11

LCM = 2×5×11×17 = 1870

⁵⁵⁾21/34 = ²⁾1155/1870 = 2310/3740

³⁴⁾34/55 = ²⁾1156/1870 = 2312/3740

2310/3740 < 2311/3740 < 2312/3740

Whats the answer to this one?

Answers

The answers are P: (-4,3) Q: (4,-3)

Hana made $126 for 7 hours of work.
At the same rate, how many hours would she have to work to make 216?

Answers

Answer:

12 hours

Step-by-step explanation:

126 dollars / 7 hours of work = 18 dollars per hour (Pretty neat honestly)

So she made 216 dollars / x = 18 dollars per hour

18x=216 (cross multiply)

216/18 = 12 hours of work

Answer: 12 hours

Step-by-step explanation:

It takes her 7 hours to make $126 dollars and we need to find out how many hours(a) to make $216

So this is the equation

7 hours= 126 dollars

a hours= 216 dollars

Cross multiply

126 x a = 7 x 216

126a = 1512

Divide both sides by 126

a= 12 hours

~~~Inuola1234

Mary drove 4 hours to reach her camping spot. She increased her speed by 15 miles per hour reducing her travel time by one hour. How fast did she drive going to the camping spot?

Answers

Answer:

45 miles per hour

Step-by-step explanation:

Mary drove 4 hours to reach her camping spot. Driving home, she increased her speed by 15 miles per hour, reducing her travel time by 1 hour. How fast did she drive going to the camping spot?

d = rt

Where,

d = distance

r = rate of speed

t = time

Going to the camping spot

d=rt

Where, t = 4 hours

d = r × 4

d = 4r (1)

Driving home

She reduced her travel time by 1 hour

That is t = 4 -1 = 3 hours

Then increased speed by 15 miles per hour

That is r = r + 15

d=rt

d = (r+15) × 3

d = 3r + 45 (2)

Equating the two equations

4r = 3r + 45

Collecting like terms

4r - 3r = 45

r = 45

r = 45 miles per hour

check:

d = 4r

d = 45*4

=180 miles

d = 3r + 45

d = 3*45 + 45

= 135 + 45

=180 miles

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