f(x) = 2x2 – 15
Find f(-2)

Answers

Answer 1
Wherever you see an x, replace it with -2,
So f(-2) = 2(-2^2) -15
= (2x4)-15
= -7

Related Questions

1 3/4 x 1 1/3 give your answer as a mixed number

Answers

Answer:

2 1/3

Step-by-step explanation:

1 3/4  is equivalent to 7/4

1 1/3 is equivalent to 4/3

7/ 4 x 4/3

reduce with greatest common factor so the two 4 are out (show a line crossing out the top and bottom 4 )

now you're left with 7 x 1/3 = 7/3

7/3 = 2 1/3

The product of two given mixed fractions is [tex]2\frac{1}{3}[/tex].

The given mixed fractions are [tex]1\frac{3}{4}[/tex] and [tex]1\frac{1}{3}[/tex].

What is the product of two fractions?

The product of two fractions is the product of the numerators and the product of the denominators.

Product of two fractions = Product of their denominators / Product of their numerators.

Here, the mixed fraction [tex]1\frac{3}{4}[/tex] can be written as [tex]\frac{7}{4}[/tex] and the mixed fraction [tex]1\frac{1}{3}[/tex] can be written as [tex]\frac{4}{3}[/tex].

Now, 7/4 × 4/3

= 7/3

= [tex]2\frac{1}{3}[/tex]

Therefore, the product of two given mixed fractions is [tex]2\frac{1}{3}[/tex].

To learn more about the product of two fractions visit:

https://brainly.com/question/7335118.

#SPJ2

) What is the area of the rectangle below?
5/6m 2/3m

Answers

Answer:

5/9 m^2

Step-by-step explanation:

the area of a rectangle is length * width

So the area = 5/6 m * 2/3 m = 10/18 m^2 = 5/9 m^2

This is urgent please help

Answers

Answer:

C is the answer i

Step-by-step explanation:

Find the midpoint of each line segment.
10)
-
A) (2,-2.5)
B) (-1.5, 1)
C) (3.5, 1)

Answers

B looks like the most probable choice because x is sitting between -2 and y is on 1.
I think it’s A Because it looks the closest plus it can’t be be because it’s 1, -1.5 and that’s not it And I don’t think it’s C

HELP I NEED HELP ??????

Answers

Speed = distance/time
Distance = 204 miles
Time = 3 hours
204/3 = 68
Solution: 68 mph
204 miles/3 hours = 68 miles per hour

If a rental apartment has 984 square feet, and the monthly rent per square foot is $1.80, what is the total monthly rent?

Answers

Answer:

Step-by-step explanation:

Well the monthly rent, as an equation, would be:

[tex]y=1.8x[/tex]

Where x is the square footage of the apartment. Thus, substituting in 984 for x:

[tex]y = 1.8 * 984 = 1771.2[/tex]

Thus, the monthly rent will be $1771.20

Hope this helps!

Identify the correct property of equality to solve each equation.

x
6
= 5

Answers

Yes it’s equality to solve

You guys you gotta help me.

Answers

Answer:

What do you need help with tell me and I will give u answer.

Step-by-step explanation:

IS IT A OR B OR C OR D

Answers

Answer:

A

Step-by-step explanation: Commutative property is when you can change the order of multiplying numbers but still get the same product.

4 x 1 =4

1 x 4= 4

Same answer different order!

I’m pretty sure it’s A

Colby graphed a scatter plot of student exam scores (y) and the number of hours each student had slept the night before the exam. She drew the trend line and calculated its equation to be y=9/2x + 60. What is the predicted score for a student who slept 6 hours the night before the exam?

Answers

DjAnswer:

Step-by-step explanation:09981

Which is fraction is less 1/5 4/5?

Answers

Answer:

1/5

Step-by-step explanation:

Look at it this way; 1/5th of a pizza. Five parts of a pizza, you only have one. But 4/5? You have four slices of the pizza! Much more! Yum.

Answer:

1/5<4/5

Step-by-step explanation:

Estimate: How many egss will there be if a farmer has 2 chickens? (x = 2)

Answers

Answer:

approxtimately 2 a day or 600 in a year

Step-by-step explanation:

because there are only 2 chickens to produce 2 eggs although they will produce more over time because 1 chicken produces 1/2 an egg a day or 1 egg a day so you will either get 250 or 300 eggs a year from one chicken

4(2p+3)=16
solve the equation

Answers

Step-by-step explanation:

4(2p+3)=16

8p +12=16

8p=16-12

8p=4

p = 4/8

p = 1/2

Final Answer: [tex]p = \frac{1}{2}[/tex]

Steps/Reasons/Explanation:

Question: Solve the equation [tex]4(2p + 3) = 16[/tex].

Step 1: Divide both sides by [tex]4[/tex].

[tex]2p + 3 = \frac{16}{4}[/tex]

Step 2: Simplify [tex]\frac{16}{4}[/tex] to [tex]4[/tex].

[tex]2p + 3 = 4[/tex]

Step 3: Subtract [tex]3[/tex] from both sides.

[tex]2p = 4 - 3[/tex]

Step 4: Simplify [tex]4 - 3[/tex] to [tex]1[/tex].

[tex]2p = 1[/tex]

Step 5: Divide both sides by [tex]2[/tex].

[tex]p = \frac{1}{2}[/tex]

~I hope I helped you :)~

Mark bought 12 movie tickets for $120. What is the equation that
represents this? *
Your answer

Answers

Answer:

12x = $120

Step-by-step explanation:

12 tickets * price = $120

is it 10? i divided 120 by 12

If two parallel lines are cut by a transversal, then alternate exterior angles are

a.) Congruent
b.) Supplementary

Answers

Answer:

A: Congruent

Step-by-step explanation:

The correct answer is A) Congruent. This means they are equal in size.

Pleaseee help on this❤️

Answers

B is incorrect which means it is the answer

Answer:

The answer is D the last one

Step-by-step explanation:

Continue the pattern 0,1,3,7,15,31, blank

Answers

Answer:

63

Step-by-step explanation:

What is the next number in this sequence: 1, 3, 7, 15, 31,

Blank = 63

Pattern equals (# * 2) + 1

ex. 1x2 = 2

2+ 1 = 3

3x2 = 6

6+1 = 7

and so on

SelectTWO expressions that are equivalent to 8(x + 5y).
(8x + 5y)
(8x + 13y)
4(2x + 10y)
2(4x + 20y)

Answers

Answer:

The bottom two

4. Chrissy had 4 gallons of gas in her tank when she arrived at the
gas station. She pumped gas into her car at a rate of 0.3 gallon per
second. How many gallons of gas were in the tank after s seconds?

Answers

it would be 15 I think : )

What is 916 divided by 320

Answers

Answer:

2.8625

Step-by-step explanation:

The answer is 2.8625

The side lengths of a triangle are 6,8, and 10. is this a right triangle. will give brainliest.​

Answers

Answer:

D

Step-by-step explanation:

Pyth Theorem = a² + b² = c²

= 8² + 6² = 10²

= 64 + 36 = 100

= 100 = 100

Thus, this is a right triangle.

Answer:

D.

Step-by-step explanation:

D. Yes, because 6^2+8^2=10^2

Pythagorean theorem

Dilation is a transformation that requires a center of dilation and a scale factor.
True
False

Answers

Answer:

false

Step-by-step explanation:

Do any of you stan loona? (Clear and simple)

Answers

Answer:

yeah

Step-by-step explanation:

Yes.

Loona: literally queens will never stop listening to them

Solve. Shauna's favorite breakfast cereal was on sale, so she bought 16 boxes. Each box contained 6 ounces of cereal. How many pounds of cereal did Shauna buy?

Answers

Answer:

6 pounds

Step-by-step explanation:

16 boxes x 6 ounces = 96 ounces

96 ounces = 6 pounds

the answer is 6 you welcome for helping

What is the value of x in the equation
5(4x-10)+10x = 4(2x-3)+2(x-4)?


O -7/4 O -1/4. O 3/20. O 3/2

Answers

Answer:

Step-by-step explanation:

7x 14x the answer is 6x

Please please help, I don’t understand. It’s art. How do I do this

Answers

Answer:

Just make something that balances , make it equal in force and weight on both sides for it to balance and just did shapes or something, once you got the base, for more (points) just cut out little orgami pieces or just a simple shape and use stick them on or balance them on both sides, make it look simple yet complex.

Answer:

get 4 things from around your house then stack them or lean them aginst echouther in a unique or creative way then take a picture and submit it

Step-by-step explanation:

I'm doing my homework, but I can't find an answer to this problem:
83-(14-34)*2

Answers

Answer:

123

Step-by-step explanation:

83-20 x 2

83 +40

=123

Ok here is the question with the picture

Answers

Answer:

The answer is c :D brainliest pls

Flying against the , a jet travels 2850 miles in 3 hoursFlying with the Jetstream, the same travels 8190 miles in 7 hours. What is the rate of the in still and what is the rate of the Jetstream ?

Answers

Answer:

ASK

ALGEBRA

Joey C. asked • 07/15/15

Flying against the wind, a jet travels 1860 mi in 3 hours.

Flying against the wind, a jet travels 1860 mi in 3 hours. Flying with the wind, the same jet travels 9180 mi in 9 hours. What is the rate of the jet in still air and what is the rate of the wind?

Follow2

Add comment

More

1 Expert Answer

By:

Best

Andrew M. answered • 07/15/15

TUTOR New to Wyzant

Mathematics - Algebra a Specialty / F.I.T. Grad - B.S. w/Honors

SEE TUTORS LIKE THIS

Let J = rate of jet in still air

Let W = rate of wind

Distance formula: d = rt so r = d/t

Flying against the wind the Jet flies at a rate of J - W = 1860mi/3hrs = 620 mph

Flying with the wind the Jet flies at a rate of J+W = 9180mi/9hrs = 1020 mph

The average of these two rate is the speed of the Jet in still air

J = (620+1020)/2 = 820 mph

J - W = 620 so

820 - W = 620

W = 820 - 620 = 200 mph

The Jet in still air flies at a rate of 820 mph

The wind speed is 200 mph

What is the solution to the equation? 2/3a -1/6=1/3

Answers

Answer:

by2

a−2=

6

5

a

\frac{2}{3}a-\frac{5}{6}a=2

3

2

a−

6

5

a=2

\frac{4a-5a}{6}=2

6

4a−5a

=2

\frac{-a}{6}=2

6

−a

=2

-a=2\times 6−a=2×6

-a=12−a=12

a=-12a=−12

Therefore, the value of a will be -12.

#Learn more

Solve : 3a + 4/ 2 - 6a = -2/5

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