Mathematics High School

Given g(x)=x2-3x+8 evaluate
A) g(4). B) g(-5)

Answers

Answer 1

Answer:

g(4) = 12

g(-5) = 48

Step-by-step explanation:

I will assume that you meant g(x)=x^2 - 3x + 8,

A) To find g(4), substitute 4 for each instance of 'x' in this function:

g(4) = (4)^2 - 3(4) + 8, or

g(4) = 16 - 12 + 8, or

g(4) = 12

Similarly, g(-5) = (-5)^2 - 3(-5) + 8 = 25 + 15 + 8 = 48

g(-5) = 48

Answer 2

Answer:

A) 12

B) 18

Step-by-step explanation:

A) 4^2 - 3(4) + 8

16 - 12 + 8 = 12

B) -5^2 - 3(-5) + 8

25 + 15 + 8 = 48

Related Questions

WILL GIVE BRAINLIEST!!

Hooke’s Law for an elastic spring states that the distance a spring stretches varies directly as the force applied. If a force of 180 newtons stretches a spring 5 cm, how much will a force of 270 newtons stretch the same spring?

Answers

Answer:

Simple springs obey Hooke's Law. Hooke's Law states that the force on a spring is proportional to it's displacement from it's resting length:

F = -k*x

Where F is the force, x is how far the string is stretched or compressed, and k is a proportionality constant called the spring constant. The negative sign is because the spring resists stretching.

In this case, we can solve for k using the first case:

(100N) = -k * (5cm)

k = ???

And plug that answer in to find x in the second case:

(360N) = -k * x

This is a "Hooke's Law" problem: the restoring force required to compress or stretch a spring is proportional to the distance the spring is deformed. You can figure solve it by setting up a proportion equation and then using the algebraic tool of cross multiplication to solve for the unkown "stretch".

1) set up the proportion equation

100 = 360

5 x

2) cross multiply to get a linear equation

100x = 5*360

3) solve for x

100x = 1800

x = 18

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Answer:

The law: F=kx

Therefore,

180N = k * 5cm

k = 180÷5= 36N per cm

Using the known constant with the law,

270=36*x

x= 270 ÷ 36 = 7.5cm

Solve for n.

n + 1 = 4(n – 8)
i will give a brainliest

Answers

n + 1 = 4(n - 8)

n + 1 = 4n - 32

n - 4n = -32 - 1

-3n = -33 / : (-3)

n = 11

Which fraction equals a repeating decimal 3/10 6/12 1/3 3/4

Answers

Answer:

1/3

Step-by-step explanation:

because 1/3 is 0.333333

What is the GCF of 14 and 16?

Answers

2.

it’s the highest number you can divide both of those by

2.4.6.8.10.12.14.16

Put the following equation of a one into a slope -intercept form, simplifying all fractions.

8x+6y=-54

Answers

Answer:

y = -4/3x -9

Step-by-step explanation:

Slope intercept form is

y = mx+b where m is the slope and b is the y intercept

8x+6y = -54

Subtract 8x from each side

8x+6y-8x = -8x-54

6y = -8x-54

Divide each side by 6

6y/6 = -8x/6 -54/6

y = -4/3x -9

Answer:

y = -4/3x - 9

Step-by-step explanation:

Putting this into 'y=mx+c' form:

i) Firstly, make it only y on the LHS:

6y = -8x-54

ii) Secondly, making the 'y' have a co-efficient of 1. This can be done by dividing both sides by 6:

6y/6 = -8x/6 - 54/6

y = -4/3x - 9

Hence,

y = -4/3x - 9

Hope this helps and be sure to have a wonderful time ahead at Brainly! :D

solve the inequality
(x+5)^2≤0

Answers

Answer:

-5

Step-by-step explanation:

8. Negative three times the sum of a number and two is fifteen

Answers

Answer:

-3(n + 2)= 15

Step-by-step explanation:

Based on this question, we know that the equation involves multiplication. Here we start our equation with -3!

Then it says "times the sum of a number and two" So let's just say the "number" is "n". The word "sum" means the answer to an addition problem, thus we know that we are adding "n" and 2. Let's put that in parenthesis!

-3(n+2)

And it says "is fifteen" which also means "equals to fifteen"

Therefore, the answer is:

-3(n + 2) = 15

Hope you find this useful :D

How do I do 7<1+x in linear equations

Answers

Answer:

7<1+x

1+x>7

x>7-1

x>6

Step-by-step explanation:

hope this helps a little

please solve for me

Answers

Answer:

Kznnznxndnnx xkndnx xjx xjxndjxs mxmzmxmx. J xnd dnxndnxjndnx. Jx xis bx 9837ei3xid dus

Step-by-step explanation:

Szjnznz s8sbbsnsjs

Mzmzmznzm

Mzmsmxmx

Mzmxmkx

Km mmx

Zkskms

Kzmz

what does 2 - 2 equal

Answers

Answer:

2 -2 = 0

hope this helps <3

It takes 5 minutes for 7 people to drink 25 pints of water.At this rate,how long would it take 15 people to drink 160 pints of water

Answers

Answer:

14.9 min

Step-by-step explanation:

r=rate

r25=5*7

r25=35

r=35/25

r=1.4

substitution

r160=t*15

t=time

r=1.4

1.4*160=t*15

224=t*15/15

224/15=t

14.9 min

PLEASE HELP WILL MAKE BRAINLIEST!
The expression ____ means 15 minus the product of 5 times the difference of p minus 6. If p = 8, then the value of the expression is 5.FILL IN THE BLANK
A.15 - 5p - 6
B.15 x 5 - (p - 6)
C.(15 - 5) x (p - 6)
D.15 - 5(p - 6)

Answers

Answer:

hope you like my answer its letter B

.Write 1.2 - 10-5 in standard form

Answers

1.2 .10/2=120.0( standard form)

because the exponent of the 10s term is positive we must move the decimal point 2 places to the right.

Can you mark this Brainliest? Thanks love!!

⋅

4-2y=-2x in slope intercept form

Answers

Answer:

y=x+2

Step-by-step explanation:

4-2y=-2x

Divide everything by 2.

2-y=-x

Switch to y=mx+b form.

-y=-x-2

Multiply everything by +1.

y=x+2

It took a car 2 days to travel 2274 miles. What was this car's average speed, in miles per hour? (round to the nearest mile per hour)

Answers

Answer:

47 mph

Step-by-step explanation:

1 day = 24 hours, so 2 days = 48 hours.

2274/48 (2274 miles per 48 hours, simplify!) This equals 47.375. Round it down to 47 mph.

This is assuming the car took no breaks.

Hope this helps!

which one would it be

Answers

Answer:

the answer would be c. .........

How do solve this chart!? : (

Answers

It just looks like a blank chart, what's the question that goes with ur

Answer:

blank chart

Step-by-step explanation:

22. Write the word sentence as an equation. The product of negative 2 and 5 plus a number d = 14.

also please solve and "product" means multiply.

Answers

The equation is:
-2 * 5 + d = 14

Solving by multiplying -2 and 5 first:
-10 + d = 14

Add 10 to both sides to get rid of the negative 10:
-10 + d + 10 = 14 + 10

-10 plus 10 gives 0 and it cancels out so:
d = 24 is the solution.

30 POINTS IF U ANSWER!
Alonso paid for repairs on his car, and 3
5
of the bill was for labor costs. How much was the total bill if the cost of the labor was $79.50? Let b = the amount of the total bill.

Which equation and solution is correct?
Five-thirds b = 79.50, and the total bill was $47.70.
Three-fifths (79.50) = b, and the total bill was $127.20.
Five-thirds b = 79.50, and the total bill was $212.00.
Three-fifths (b) = 79.50, and the total bill was $132.50.

Answers

Answer:

132.50

Step-by-step explanation:

3/5b = 79.50

b = (79.50) / (3/5)

b = 79.50 * 5/3

b = 397.50/3

b = 132.50

132.50 is the total bill

justify each step and write their properties

2(7-v)-3v

Answers

Answer:

[tex]{ \rm{2(7 - v) - 3v}}[/tex]

• Apply distribution property

[tex]{ \rm{ = 14 - 2v - 3v}}[/tex]

• Simplify:

[tex] = { \rm{14 - 5v}}[/tex]

Answer:

Given, Distributive, Associative, Addition, Simply

Step-by-step explanation:

2(7 - v) - 3v Given

14 - 2v - 3v Distributive

14 + (-2v -3v) Associative

14 + (5v) Addition

14 - 5v Simply

Can you use mechanical pencils on the PSAT?

Answers

Answer:

Step-by-step explanation:

only number 2 pencils im pretty sure

I need help with find this problem out

Answers

Ok so first, we know just by looking that QT is 180° since it’s a fraught angle. If you subtract angle QRS from QT, you’ll get the value for angle SRT. 180-162 is 18 so SRT IS 18°. The other angle of the triangle is already given to us as 130°. Since all three angles of a triangle add up to 180°, we can subtract the two angles to get the remaining one. 180-130-18 is 32 so the missing angle is 32°
Hope this helped :)

Answer:

Step-by-step explanation:

Hi there!

∠SRQ = 162°

∠STR = 130°

∠RST = ?

Now;

∠SRQ = ∠RST+∠STR [external angle is equal to the sum of opposite interior angles of triangle]

∠RST = ∠SRQ-∠STR

∠RST = 162°-130°

Therefore, the measure of ∠RST is 32°.

Hope it helps!

Can I please know how to solve this

Answers

Multiply numerator with numerator and denominator with denominator. And also convert any mixed numbers to fractions before multiplication.

Sorry that took so long......

Messed up on the last part!

Have a great day!!!!!

Scooter rental company A charges an initial fee of $3 plus $1.15 for every hour. Scooter rental company B charges $1.75 for every hour. A customer finds that after h hours, the scooter rental companies will cost the same.

Which equation represents this situation?

1.75h+1.15h=3

1.75h=3−1.15h

1.15h=3+1.75h

1.15h+3=1.75h

Answers

Answer:

This is a little late but it's D. 1.15h+3=1.75h

Step-by-step explanation:

I took this test

Is the table a linear function?
Yes or no

Answers

yes it is a linear function

Robin earned $4,320 in 9 weeks and worked 40 hours in each week. How much did he earn per hour?

Answers

you do 4320÷ 9= 108 and that's your answer right there

How are rates and ratios related?

Answers

Answer:

Rates are ratios that are renamed so that one of the numbers is 1. It is usually the denominator of the original ratio.

point S lies an AB. If AB=34 units, AS=5+2x units, and SB=x+2 units, what is the length of AS in units?

Answers

Answer:

5+2x+x+2=34

7+3x=34

7-7+3x=34-7

3x=27

3x/3=27/3

x=9

5+2x=AS

5+(2*9)=AS

5+18=AS

23=AS

23 units

Step-by-step explanation:

PLZZZ HELP X IS 44 .............

Answers

Answer:

y = 136

Step-by-step explanation:

the line is 180 degrees so

180-44 = 136 degrees

Answer:

y=136

Step-by-step explanation:

x=44 y=136

44+136=180

1)the fish vendor sells 5/7 kilos of bangus for 75.50. if you will buy 2 1/7 kilos of bangus,how much will cost?

Answers

Answer: 好吧，您看到当您将其乘以 73 然后除以时，您将获得免费的旁遮普语和免费的，乔·佩珀将在凌晨 3 点拜访您

Step-by-step explanation: 详见附件

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Given g(x)=x2-3x+8 evaluate A) g(4). B) g(-5)

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Given g(x)=x2-3x+8 evaluate
A) g(4). B) g(-5)