If k(x) = 2x² -3.Vx, then k(9) is

Answers

Answer 1

Answer:

159

Step-by-step explanation:

k (9) = (2 * [tex]9^{2}[/tex]) - 3

= (2 * 81) - 3

= 162 - 3

= 159


Related Questions

7. On Monday, Jeremiah had a debt of $92.80 after buying a pair of Jordan's. Jeremiah was
paid $126.42 from his job at Home Depot on Tuesday. After depositing his check from
Home Depot, what is the amount, in dollars, in Jeremiah's bank account?
A $33.62
B. $219.22
C. $174.42
D. $42.22

Answers

Answer:

A $33.62

Step-by-step explanation:

To figure this out you have to take -92.80 and add 126.42 to get $33.62. Have a great day and LEAVE ME ALONE PLZ! <3

Answer:

-92.80+126.42=33.62

Step-by-step explanation

Since you owe $92.80 it would be a negative. So it would be like this.

126.42-92.80= 33.62

Or

-92.80+126.42=33.62

Hope this Helps.  

21 laps in 7 minutes round to nearest hundredth

Answers

3 laps a minute.

I am not exactly sure what you’re looking for but this is something.

Which of the following is a Pythagorean triple?
A. (5, 12, 15)
B. (8, 9, 10)
C (8, 15, 17)
D. (3, 3, 6)

Answers

Answer: C
Explanation: 8^2 + 15^2 = 17^2
64+225=289

what is the correct factorization of x^2+5x-6?

Answers

The answer is (x-1) (x+6)

Answer:

[tex](x+6)(x-1)[/tex]

Step-by-step explanation:

[tex]x^{2}+5x-6\\[/tex]

ac ⇒ [tex]1*-6[/tex] ⇒ [tex]-6[/tex]

b ⇒ 5

[tex]6*-1=-6\\6-1=5[/tex]

[tex](x+6)(x-1)[/tex]

[tex]x*x=x^2\\x*-1= -x\\6*x=6x\\6*-1=-6\\\\x^2-x+6x-6\\x^2+5x-6[/tex]

A forest covers 71,000 acres. A survey finds that ​0.3% of the forest is​ old-growth trees. How many acres of​ old-growth trees are​ there?

Answers

Answer:

213 acres

Step-by-step explanation:

Can anyone help please

Answers

When You divide numbers it makes the value smaller so subtracting the exponents will make the value with that base smaller

Answer:

Well multiplication is the inverse of additon. And when multiplying you add the exponents.

So when dividing you subtract the exponents

Lisa has 6 hours of studying to do. If she divides her study time into 1/2-hour sessions, how many study sessions will she need?

Answers

Answer:

12 i think?

Step-by-step explanation:

only simplify, don’t solve please. thank you!

Answers

Answer:

4x

Step-by-step explanation:

the -8 and +8 cancel out

x and 3x are both positive so add them

you're left with 4x

Simplifying is the same as solving this question. I'll give steps instead.

x - 8 + 3x + 8

x + 3x - 8 + 8       (Arrange the equation)

(x + 3x) (- 8 + 8)   (Parentheses the like terms together)

(4x) (0)                 (Solve)

4x                        (Simplified)

Cheers!

1What is the simple interest on #25 000 for 3years at 5% per annum?.

#28 750

#3 750

#2 875

#375


Answers

Answer:

3750

Step-by-step explanation:

Simple interest (I) is calculated as

I = [tex]\frac{PRT}{100}[/tex] ( P is the principal, R is rate of interest and T time in years )

Here P = 25000, R = 5 and T = 3 , thus

I = [tex]\frac{25000(5)(3)}{100}[/tex]

  = [tex]\frac{375000}{100}[/tex]

  = 3750

What is the image point of (0, 1) after a translation right 5 units and up 5 units? You

Answers

Answer:

(5,6)

Step-by-step explanation:

Add 5 to each side since it is going in both positive directions (up and down)

(5,6)

Answer: (5, 6)
Explanation: I just took the test, I’m 100% sure.

The LMC of 4 and 7 is

Answers

Answer:

28

Step-by-step explanation:

4: 8,12,16,20,24,28

7:14,21,28

28 is the answer

The number of pounds of dog food that a pet store has is represented by the equation y = -15 x + 430, where x represents the number of days that the store is open and y represents the pounds of dog food in stock in the store. How many pounds of dog food will the pet store have after 21 days? *

A. 92
B. 115
C. 315
D. 336

Answers

Answer:

bro its b

Step-by-step explanation:

Josh went to a local barber to get his haircut. It cost $18 for the haircut. Josh tipped the barber 15%. What was the total cost of the haircut including tip?

Answers

$20.70

Step-by-step explanation:

15% of 18 is 2.7 so 18 + 2.7 = 20.70

Help, question is in image..

Answers

Answer:

Yes, SAS

Step-by-step explanation:

The Triangle Congruence Theorem would be SAS as there are 2 equal sides with lines (AB = xy) and (BC = yz)

And there are is a pair of equal angles as they both have a 90 degree angle

= SAS

6
Translate into a mathematical
expression:
?/1
Twice a number, increased by the
sum of the same number and five.
I

Answers

Answer:

2x + (x + 2)

Step-by-step explanation:

Let the number = x

"twice a number" means 2x

"increased by the sum of the same number and five" means to add x + 5, so the expression is

2x + (x + 2)

An apple tree is 93 ft tall and a peach tree is 5ft tall. How much taller is the
apple tree than the peach tree? help!!

Answers

88ft. You need to subtract 5 from 93 (93-5) which would equal 88

I have a question please help ;w;

Answers

Answer:

4

Step-by-step explanation:

help asappp!!! correct answer pleas :)​

Answers

Answer: y = 3x + 4

Explanation: The slope is positive 3x and the y-intercept is +4 therefore the equation is y = 3x + 4 in y = mx + b form.

(mx is for slope, b is for y-intercept)

Hope this helps :)

A spinner has 8 equal sectors with different letters for each sector, as shown below:

A spinner with 8 equal sectors is shown. The sectors are labeled B, Y, G, P, O, V, M, and R.

Hamlet spins the spinner 13 times, and it stops at the letter R 9 times. If he spins the spinner a 14th time, what is the theoretical probability that this time it will stop at the letter R?

Answers

Answer:

The theoretical probability of obtaining letter 'r' at the 14th spin is:

1/8

Step-by-step explanation:

It is given that:

A spinner has 8 equal sectors with different letters for each sector.

The sectors are labeled b, y, g, p, o, v, m, and r.

Hamlet spins the spinner 13 times, and it stops at the letter r 9 times.

We are asked to find the theoretical probability that we will get  letter r at the 14th spin.

The theoretical Probability is given as the ratio of number of favorable outcomes to the total number of outcomes.

Hence, the theoretical probability of obtaining letter 'r' at the 14th spin is:

( As there are a total of 8 outcomes( or 8 sectors) out of which there is only one sector which is red)

Hope this helped

Tony’s taxi had a rate chart posted on the side of each cab. Distance charge: 1 mile- $3.50 2 miles- $5.50 4 miles- $9.50

Answers

Answer:c=2m+1.50

Step-by-step explanation:

If you plug in each mile for M that’s how you get the answer .

PLEASE HELP ASAP!!! If ABCD is a rectangle and m

Answers

Answer:

C = 94

Step-by-step explanation:

Say the centre point is Y, then the triangle BCY is an isosceles, therefore angle BCY = angle CBY

So the base points of that triangle are both 47, to find the angle of BYC, you just do:

180 - 47 - 47 = 86

and then since x is on a line with 86, and angles on a straight line add up to 180:

180 - 86 = 94

answer is 94 degrees

Answer:

94

Step-by-step explanation:

Evaluate the expression 6 + 8f for f = 4.*​

Answers

Answer:

38

Step-by-step explanation:

8*4=32

add 6

Hope this helps!

What will be the answer for x?

Answers

Answer:

x=8

Step-by-step explanation:

5x+6+134=180

5x=40

x=8

Which is equivalent to 4 radical 9^1/2x

Answers

Answer: 9 1/8x

Step-by-step explanation:

help with this pleaseeee

Answers

The measure of angle ABC is equal to ABD + CBD. If you have the measure of ABC and CBD, then you can subtract CBD from ABC to get the measure of ABD. Proof below:
ABC = ABD + CBD
subtract CBD from both sides
ABC - CBD = ABD

Write an equation that represents the question below...​

Answers

Answer:

first use your brain

Step-by-step explanation:

step by step you have to learn first

Answer:

30

Step-by-step explanation:

15 x 2 = 30

he was q5 feet ahead so in another hour he will be 30 feet

Calculators cost $12.99 each, rulers cost $0.49 each, pencils cost $0.10 each, and erasers
cost $0.05 each. How much would Mrs. Algebra's single order be? Use the expression below
to calculate the total.

Answers

Given :

Calculators cost $12.99 each, rulers cost $0.49 each, pencils cost $0.10 each, and erasers  cost $0.05 each.

To Find :

How much would Mrs. Algebra's single order be.

Solution :

Total price paid by Mrs. Algebra = Price of pencil + price of ruler + price of calculator + price of eraser.

T = $(0.10 + 0.49 + 12.99 + 0.05)

T = $13.63

Therefore, Mrs. Algebra's single order cost is $13.63 .

Hence, this is the required solution.

$132.75 discounted 40%

Answers

Answer:

$79.65

Step-by-step explanation:

Answer:

$79.65

Step-by-step explanation:

Discount: $53.10

Final Price: $79.65

A missile is launched along a path determined by the function below, where f(x) is the height of the missile in feet x seconds after the launch.
A plane is flying nearby at a height of 650 feet.
Is the plane in danger of being hit by the missile?
Why or why not?

f(x)=-2x^2+72x

Answers

Answer:

The plane will be fine.

Step-by-step explanation:

[tex]f(x) =-2x^{2}+72x\\650=-2x^{2}+72x\\2x^{2}-72x+650=0\\[/tex]

There are no real solutions.

Please help me and I’ll give you brainiest!!!!!!!!!



Have a wonderful day!!:))))))!!!!!!

Answers

Y33x is your answer and
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