Mathematics College

Evaluate the function.
f(x) = -x^2+ 7x - 13
Find f(-3)

Answers

Answer 1
the answer to this is -25
Answer 2
f(x) = -x^2 +7x-13
f(-3) = -(-3)^2 + 7(-3) - 13
f(-3) = 3^2 -21 -13
f(-3) = 9-21-13
f(-3)= -25

Related Questions

X+Y=4.25
16.90X+4Y=36.35
What are the values of X and Y

Answers

Answer:

Y = 2.75X = 1.5

Step-by-step explanation:

X+Y=4.25

16.90X+4Y=36.35

That means that;

X = 4.25 - Y

Substituting X into the second equation is;

16.90 * (4.25 - Y) + 4Y = 36.35

‭71.825‬ - 16.90Y + 4Y = 36.35

‭71.825‬ - 12.90Y = 36.35

‭71.825‬ - 36.35 = 12.90Y

Y = ‭35.475‬/12.90

Y = 2.75

X = 4.25 - Y

= 4.25 - 2.75

= 1.5

From the computation done, the value of X is 2.75 and Y is 1.5.

The following information can be depicted:

X + Y=4.25 .... i

16.90X + 4Y=36.35 ..... ii

From equation i

X = 4.25 - Y

We'll substitute X into the second equation and this will be:

16.90(4.25 - Y) + 4Y = 36.35

‭71.825‬ - 16.90Y + 4Y = 36.35

‭71.825‬ - 12.90Y = 36.35

Collect life terms

‭71.825‬ - 36.35 = 12.90Y

Y = ‭35.475‬/12.90

Y = 2.75

Since X = 4.25 - Y

X = 4.25 - 2.75

X = 1.5

Learn more about equations on:

https://brainly.com/question/13763238

If Tori has 100 apples, and Peppa has 200, Alex had 300, and Lorenzo has 3 times the amount they did combined, How many apples does Lorenzo have?

Answers

Answer:1,800 apples

Step-by-step explanation:100+200+300 is 600 and when you multiply that times 3 you get 1,800.

Answer:

1,800.

Step-by-step explanation:

Add all of the apples together and multiply by 3.

2x2 forma exponencial

Answers

4 or (2)^2 that’s what I think it’s asking but the question should be more clear

Is -15 less than -18

Answers

Answer:

No it is more

Step-by-step explanation:

The home that you want to purchase requires that you pay 3 points towards a $225,600 loan. Determine the cost of the home after the 3 points have been applied.

a.$225,600

c.$230,112

b.$227,856

d.$232,368

Answers

............…… is b ………

Answer:

D

Step-by-step explanation:

Comment above.

If people blink about 17 times per minute, how many times do they blink in 8 hours?

Answers

Answer:

8,160 times in 8 hours.

Step-by-step explanation: What You must do is Multiply 17 and 60 because there are 60 mins in an hours. You get 1,020 blinks an hour. Now multiply 1,020 and 8 to get 8,160 blinks in 8 Hours.

Can someone help me

Answers

Answer:

with what?

Step-by-step explanation:

Adjacent angles that form a linear pair are supplementary angles. True or false?

Answers

Answer:

FALSE

Step-by-step explanation:

Answer:

Step-by-step explanation:

It's true. If you have a straight line and you put the endpoint of a ray on that line and let the ray go in the direction it is pointing, 2 angles will be formed unless the ray is part of the line.  

The way the question is worded, you have a linear pair which means there are 2 distinct angles whose vertex is on a line.

That's the very definition of supplementary.

/O-O\ Help no fake answers

Answers

Answer:

I want to say it is the first one and the and the third one

Step-by-step explanation:

Answer:

a, d and e

Step-by-step explanation:

3.5%=3 1/2% of 20

3.5x100=0.035 of 20

3.5+3.5=7 (x2), then 20/2 will be 10

7% of 10

You deposit $400 in an account that pays 2.4% annual interest compounded monthly a. When does your balance first exceed $500? after years and months b. Use the compound interest formula to find the balance after this amount of time. The balance is $​

Answers

Answer:

The answer is $88

Step-by-step explanation:

The Math.random () function returns a floating-point, pseudo-random number in the range 0–1 (inclusive of 0, but not 1) with approximately uniform distribution over that range — which you can then scale to your desired range.

Helpp me with question 18.

Answers

Answer: A) <

Step-by-step explanation: 98.546 is less than 98.654

16 x 21 + 5

pls answer

Answers

Answer:

341

Step-by-step explanation:

Answer:

341

Step-by-step explanation:

Miguel is selling tickets to a barbecue. Adult tickets cost $7.00 and children's tickets cost $4.00. He sells five more children's tickets than adult tickets. The total amount of money he collects is $218.00. How many adult tickets and how many children's tickets did he sell?
adult tickets
children's tickets

Answers

218= 7x + 4(x+5)
x=18

Waylon played defense in 12 soccer games. This was 60% of the total games he played. How many games did Waylon play?

Answers

Answer:

20 games

Step-by-step explanation:

(12/x)=(60/100)

12*100=1200

60x=1200

x=20

20    

Step-by-step explanation:

Which choice correctly shows rounding to the hundredths place?
4.234 + 4.752 + 7.99 right-arrow 4.2 + 4.8 + 8.0
3.825 + 4.792 + 3.0805 right-arrow 3.82 + 4.79 + 3.82
3.824 + 4.765 + 1.732 right-arrow 3.81 + 4.77 + 3.80
3.8765 + 4.824 + 1.733 right-arrow 3.88 + 4.82 + 1.73

Answers

Answer:

the last one:))))

Step-by-step explanation:

trust me

3.8765 + 4.824 + 1.733 → 3.88 + 4.82 + 1.73
The hundredths place is the second number after the decimal.
If the 3rd number after the decimal is 5-9, you round the second number up

How do i solve this slope of a line from a graph?​

Answers

Answer:

How you solve it is you pick two points on a line and figure out their coordinates. Determine the difference in the y-coordinates of those two points. Then you also do the same thing with the x-coordinates. Then you divide the difference in the Y and X coordinates .

Step-by-step explanation:

hope this helps 100% sure though that it is right.

Natalie buys a basketball for $25.57 and an air pump for $15.61. How much change will she receive if she pays for both items with a $50 bill?


i don't get it

Answers

Answer:

8.82

Step-by-step explanation:

Add the basketball and airpump together and subtract from 50

Answer:

$8.82

Step-by-step explanation:

ya add $25.57 + $15.61 which equals $41.18.

then you subtract. 50.00-41.18= $8.82

What is the value of g(2)?

Answers

Answer:

2g

Step-by-step explanation:

What is the error in this problem?

Answers

What problem was it not there

Chelsea
Enter in the missing numbers to create equivalent ratios.
5
2
4
25
20
Enter in the missing numbers

Answers

Step-by-step explanation:

The way to find missing numbers in equivalent ratios is to multiply the means (the first denominator and the second numerator) and multiply the extremes (the first numerator and the second denominator). It sounds really complicated, but it is quite simple =)

2/5 = x/10

The means in this equivalent ration are 5 and x. The extremes are 2 and 10.

5x = 20

Now solve =)

x = 4

That was pretty simple. Let's move on to the next one. Do exactly the same thing here:

4/10 = 6/x

60 = 4x

15 = x

That was pretty simple, too! Keep going!

6/15 = x/25

15x = 15

x = 10

All of these should be equal, so check them by dividing:

2/5 = 0.4

4/10 = 0.4

6/15 = 0.4

10/25 = 0.4

They all check out, so these are your answers: 2/5, 4/10, 6/15, 10/2

pls give brainest

The dinner bill for four people came to $108.60. If they plan to leave a 20% tip and split the bill equally, how much will each person pay?

Answers

Answer:

32.15

Step-by-step explanation:

Answer:

$32.58 per person

Step-by-step explanation:

What is the slope of a line that is parallel to the line y = 2x + 4 ? *

Answers

Answer:

The slope should be 2 from the parallel line

Step-by-step explanation:

Hope this helps!

Hello! (:

Since parallel lines have the same slope, then the line has a slope of 2.

So, if the given line has a slope of 2, then the line parallel to it has a slope of 2 as well.

Hope it helps!

If you have any question or query, feel free to ask!

~An excited gal

[tex]SparklingFlower[/tex]

Find the values of x and y. The diagram is not to scale.

Answers

Answer:

51+x-5+y-6=180

x+y=180-51+5+6

X+y=140

Answer x=77 y=63

(those 2 lines with the arrows are perpendicular so their angles are the same 72° and (x-5)=77-5= 72°)

The values of x and y are 77 and 63 respectively.

What is Angle?

Angle is defined as the figure formed by two lines or rays which has a common point of intersection where the angle is formed.

Sum of the interior angles of a triangle is supplementary.

That is three angles (y - 6)°, 72° and an unknown angle is supplementary.

We have two parallel lines given and a transversal line intersects the parallel lines.

So the unknown angle of the triangle and the angle 51° are alternate interior angles and are thus equal.

So the third angle of the triangle = 51°

(y - 6) + 72 + 51 = 180

y - 6 + 123 = 180

y + 117 = 180

y = 63

The angles (x - 5)°, 51° and (y - 6)° are supplementary.

(x - 5) + 51 + (y - 6) = 180

x - 5 + 51 + 63 - 6 = 180

x + 103 = 180

x = 77

Hence the value of x is 77 and the value of y is 63.

To learn more about Angles, click on the link given below :

https://brainly.com/question/28451077

#SPJ2

I need help with 1-19!! Please help me!!!

Answers

Answer:

I need help with1-9!! please help me!!

Which graph represents the equation 3x+y=-1?

Answers

C. with the root being (-1/3, 0)

Answer:

The answer is c

Step-by-step explanation:

I put this into my graphing calculator to solve it. To do this by hand though you need to choose two numbers and enter then for x and that should give you the numbers the you need to plot on your graph.

Hope that help :)

8. Find the value of x.
42.3
56.4
a. 108
b. 16.5675
C. 108.6
d. 7

Answers

Answer:

i'm answer is letter b 16. 5675

Is so easy pls help 20 points

Answers

Answer:

24

Step-by-step explanation:

bc 60-36=24 (idk if this is right)

Is numbers 9 and 10 correct ??!!

For number 9 I put : -2
For number 10 I put : 5/4, 4/5 , .75, 1.4, -5.8

Answers

Answer:

the answers are -2 and -5.8, 0.75, 4/5, 5/4, 1.4

Step-by-step explanation:

Frank has 6 blocks of cheese. How many pizzas can he make if each pizza needs 4/3 a block of cheese?​

Answers

Step-by-step explanation:

So if you need to use 4/3 of a cheese block that is 1 1/3 of those cheese blocks so keep adding until you get to 6 blocks of cheese or just about 6 blocks

Help me pls!!!ASAP I don’t get it

Answers

it’s 106 !! so option c
option c!!!!!!!!!!!!
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