Mathematics High School

Which function is f(5) for the function -2x^2+2x-3

A: -107
B: -63
C: -43
D: -37

Answers

Answer 1

Answer:

C

Step-by-step explanation:

-2x^2 + 2x -3

-2(5)^2=

-50

2(5)

= 10

-50+10-3

is -43 so C

Related Questions

PLZZZ ANSWER I BEG U
Graph a line with a slope of 2 that goes through the point (4, 8).

To graph a line, plot two points on the line.

Answers

Answer:

Step-by-step explanation:

Two flag poles at Liberty Park are 27 feet tall. The distance from the top of one flag pole to the base of the other is 45 feet. What is the distance between the two flag poles?

Answers

Answer:

Step-by-step explanation:

Answer:

The distance between the two poles is 36 feet.

Step-by-step explanation:

If 2 flag poles are 27 feet tall each

if the distance from one flag pole to the base of the other flag pole is 45 feet, this forms the shape of a right angle triangle.

Here, we are going to make use of the Pythagoras theorem.

a2 + b2 = c2

27 2 + b2 = 45 2

b2 = 45 2 - 27 2

b = 45 2 - 27 2 (square root)

b = 2025 - 729

b= 1296 (square root)

b = 36

After a 12% increase the cost of a new cooker is £190.40
Work out the original price of the cooker.

Answers

Answer:

1

X+.12*x=190.40

X(1+.12)=190.40

X=190.40/1.12=170

2a

X+x+25=100

2x=75

X=37.5%

Men=.375*270=101

2b

A 381 foot cable runs from the top of a radio tower to a skate in the ground. If it hits the ground 167 feet from the base of the tower , what is the angle of elevation that is makes with the ground?

Answers

Answer:

64°

Step-by-step explanation:

Using Pythagoras rule :

Cosθ = adjacent / hypotenus

Adjacent = 167

Hypotenus = 381

Cosθ = 167 / 381

Cosθ = 0.4383202

θ = Cos^-1(0.4383202)

= 64.003

Hence, angle of elevation = 64°

Bruce flipped a penny 5 times. It landed on heads 2 times and tails 3 times. If he flips the coin a 6th time, what statement is true?
A. It is more likely to be heads.
BIt is equally likely to be heads or tails.
C. It is more likely to be tails.
D. It in not likely to be tails.

Answers

Answer:

B

Step-by-step explanation:

I would say B because they're only 2 options head and tails.

✩brainliest appreciated ✩

what is the nth term rule of the linear sequence below 1,7,13,19,25

Answers

First you see how it goes up 6 each time this is the start of your nth term rule
6n
Then -6 from the first term to get the ‘0th term’ 1-6=-5
So nth term rule is
6n-5
hope this helps

which on these sequences are a fibonacci sequence?? HELP ASAP!!

Answers

Answer:

i believe it's c

Step-by-step explanation:

from what I know the fibonacci sequence is numbers that go up by adding the following number so 1+2 is three and then 2+3 is 5

Answer: C

Explanation:
In the Fibonacci Sequence, you just continuously add the last number in the sequence to the next number in the sequence.

Example:
1, 2 (the next number would be 3 bc 1 + 2 = 3 and so fourth.)

PLSSSSSS HELPPPPPPP FAST WILL GIVE BRAINLIEST

Answers

Answer:

The average number of points scored by a member of the team.

Step-by-step explanation:

The center of the data is another phrase for the mean of the data

Mean: the average of all data given (Add all the numbers up and divide by the amount of numbers there are).

Hope this helped :)

Answer:

I believe the answer would be A.

Step-by-step explanation:

You can get rid of B. and C. since it is in the middle. The highest would be at the top/right side and the lease would be at the bottom/left side. Then the total score does not make much sense because you would have to add up every number

how will you remember what changes when reflecting across the x-axis?
here are 20 points lovely person

Answers

Answer: When you reflect a point across the x-axis the x-coordinate remains the same, but the y-coordinate is transformed into its opposite

Step-by-step explanation:

Can someone please help me

Answers

Answer:

I think it would be the last one

pls help me i will give brainliest

Answers

Answer:

120°

Step-by-step explanation:

If the line were to continue down to form a triangle at the bottom, it would cross the line with an interior angle of 70°.  Since we have two of the angles, we subtract them from 180°.

180-70-50=60°

That would be the third interior angle at the top of the triangle.  Angle x is supplementary to that.

180-60=120°

Can someone please help me

Answers

Answer:

95

Step-by-step explanation:

because 95 is on the other side I think it's called anterior angles or something

95 because they are both across from each other which make them equal to each other

what is 2x + 7x + 8a + 9a

Answers

Answer: 9x + 17a

Step-by-step explanation:

2x + 7x + 8a + 9a

2x+7x= 9x

8a+9a= 17a

= 9x +17a

Answer:

9x + 17a

Step-by-step explanation:

9x + 17a. (A side note is that you can't add x and a together because they are different variables.)

Enter the value of 62×31+14÷2 as a whole number.

Answers

= 1929

Step-by-step explanation:

= 62 × 31 + 14 ÷2= 62 × 31 + 7= 1922 + 7= 1929

MARK ME BRAINLIST

Answer:

wdu4ehrh4hru4

Step-by-step explanation:

yes i am god

Complete the ratio table explain or show your work (you must do either)

Answers

Answer:

7 21 35 49

3  9  18  27

Step-by-step explanation:

the top is going up by 14 and you subtract 9 from 27

Solve this equation.
-4 (y - 3) = 36

Answers

-4y + 12 = 36

-4y = 24

y = - 6

Answer:

y = -6

Step-by-step explanation:

To solve for y, you must isolate the variable by first dividing both sides by -4:

-4 (y-3) = 36

÷-4

y-3 = -9

Next, add 3 to both sides and you will get your final answer:

y-3 = -9

+3

y = -6

To check your answer, you can plug in -6 for y to ensure that the overall result is 36:

-4(-6-3) = -4(-9) = 36

36 = 36

Hope this helped!

Can the sides of a triangle have lengths 1, 4, and 5?

Answers

Answer:

No, it can't. The sum of any two sides must be bigger than the third side to form a triangle.

Step-by-step explanation:

1+4 = 5

There are GCF of two numbers is three and the LCM is 180. If one of the numbers is 45,what is the other number ?

Answers

Answer:

The other number is 12

Step-by-step explanation:

There are GCF of two numbers is three and the LCM is 180. If one of the numbers is 45,what is the other number ?

Let us represent the other number as x

There are GCF of two numbers is three and the LCM is 180.

Therefore:

45 × x = 3 × 180

45x = 3 × 180

x = 3 × 180/45

x = 12

Therefore, the other number is 12

Can some one tell me the answer


Find the missing angle

Answers

The answer is 137°...

Answer:

137°

Step-by-step explanation:

See image

Which polynomial is a quintic trinomial?
A.−x4−5x2+1
B. 3x5+7x2−9x4
C. x3+2x2−8x+16
D. x² + 4

Answers

Answer:

D. x^2+4

Step-by-step explanation:

I have seen this exact question and this was the answer.

Hope it helps.

If a basketball was super inflated and had a rebound ratio of 85%, write an equation to determine what the height of the basketball would be after 6 bounces if it was dropped from a height of 10 ft.

Answers

Answer:

3.77ft

Step-by-step explanation:

According the question

The height of the basketball dropped from a height of 10ft after 6 bound having a rebound ratio of 85%

= 10(17/20)^6 = 3.77 feet

Tell which value of the variable is the solution of the equation. 6c=96; c=14,15,16,17

Answers

Answer:

c = 16

Explanation:

Do it on a calculator it'll be correct

16. Physical Science A ball is dropped from a
height of 500 meters. The table shows the height
of each bounce, and the heights form a geometric
sequence. How high does the ball bounce on the
8th bounce? Round your answer to the nearest
tenth of a meter.

Answers

Ball will bounce 83.9 meters high on the 8th bounce.

Geometric sequence:

nth term of a geometric sequence is given by the expression,

        [tex]T_n=ar^{n-1}[/tex]

        Here, [tex]a=[/tex] First term

         [tex]r=[/tex] Common ratio in each term

         [tex]n=[/tex] Number of term

    From the table attached,

  First term [tex]a=400[/tex] meters   Common ratio [tex]r=\frac{\text{Second term}}{\text{First term}}[/tex]

                                       [tex]=\frac{320}{400}[/tex]

                                       [tex]=0.8[/tex]

           8th term of the sequence will be,

           [tex]T_8=400(0.8)^{8-1}[/tex]

           [tex]T_8=83.886[/tex]

                [tex]\approx 83.9[/tex] meters

Find out more information about geometric sequence here;

https://brainly.com/question/11266123?referrer=searchResults

Solution or no solution?

Answers

I think the answer is solution


When making a monthly budget, a family estimated they would spend
$600 on groceries. They spent $640. What was the percent error?

Answers

they added the tax witch is 20% more than what the price tag says

Use the rectangle shown to answer the question.
32 feet
8 feet
Stephanie dilated the rectangle and the dimensions of the image were 24
feet by 6 feet. What was the scale factor used? (In decimal form)

Answers

.75 is the scale factor,
24/32= .75
6/8 = .75

Please help me with this

Answers

Put one point at -10,6 and another at 6,-10

What is the value of expression below -8.125 + 7 3/8

Answers

Answer:-6/8, -3/4, -0.75

Step-by-step explanation:

Background info:

0.125=1/8

An you can also use the commutative property to "flip" the equation

Let's rewrite -8.125 as 8 1/8 because we know 1/8=0.125

And let's write it as a improper fraction - 65/8 and let's write 7 3/8 too as 59/8

Now we have to use the distributive property and subtract 65/8 from 59/8 (59/8 - 65/8) and you will get -6/8 or simplified -3/4 or in decimal -0.75

answer this please :D but bot kokes serious answers

Answers

1 1/5 = 1.2
1.5-1.2 = 0.3

Help me people please

Answers

Answer:

C

Step-by-step explanation:

When the domain is y, the line is always horizontal

X could be anything and the line would still be horizontal because y is 1.5

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