Mathematics High School

Let f(x) = 3x2–5, find f(-5).
A. 70
B. 71
C. 72
D.73

Answers

Answer 1
Given equation:

[tex]f(x) = 3x2 - 5[/tex]

If x=-5Solution:

[tex]f( - 5) = 3( - 5)2 - 5 \\ = 3 \times - 5 \times 2 - 5 \\ = - 30 - 5 \\ = - 35[/tex]

Solved ✔︎

Related Questions

A smartphone costs $140. Sales tax is 4%. What is the total cost, including tax?

Answers

Answer:

145.60

Step-by-step explanation:

what two numbers have a sum of 4 and product of 12

Answers

The numbers are 6 and -2.
6 + -2 is 4
as well as 6 x -2 is -12

Answer:

6 and 2 this is the answer my child.

what is 523,278,and 351 .Estimate the total

Answers

Answer:

Your weight...

Step-by-step explanation:

what the power a when 5^a = 1/125

Answers

Answer:

a = -3

General Formulas and Concepts:

Algebra I

Solving Exponential EquationsExponential Property [Rewrite]: [tex]\displaystyle b^{-m} = \frac{1}{b^m}[/tex]

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle 5^a = \frac{1}{125}[/tex]

Step 2: Solve for a

Rewrite:                                                                                                                [tex]\displaystyle 5^a = \frac{1}{5^3}[/tex]Rewrite [Exponential Property - Rewrite]:                                                       [tex]\displaystyle 5^a = 5^{-3}[/tex]Set:                                                                                                                    [tex]\displaystyle a = -3[/tex]

Between which two consecutive whole numbers can we find 96−−√?

A.7 and 8
B.8 and 9
C.9 and 10

Answers

C. 9 and 10 I think


Hoped it helped (:

I need help asap

write an inequality that represents the graph .

Answers

Answer:

x ≤ -5

-5 is the point and the point is filled and pointing to the left so it's less than or equal to

A filled circle means it less/greater then or equal to.
The point starts on -5 and goes to the left so it would be x <= -5

David is making his own strawberry yogurt. In David's mixture, the number of strawberries is proportional to the amount of milk, in cups. David uses 4 cups of milk for every 14 strawberries in his mixture. Which equation represents the relationship between s, the number of strawberries, and m, the number of cups of milk he uses? ​

Answers

4 cups of milk = 14 strawberries

We want to find out how many strawberries for one cup of milk.   We can set a proportion.

4 / 1   =  14 / S

Cross multiply to solve for S.

4S = 14

 S = 7/2

S = (7/2)M

A)
The car accelerates for 10 seconds
B)
The car moved forward at a constant speed for 6 seconds before moving
backwards
The car accelerated for 6 seconds and continued at a constant speed
D)
The car moved forward at a constant speed for 6 seconds and then stopped
moving suddenly

Answers

Answer:

C The car accelerated for 6 seconds and continued at a constant speed

is it
A) X || Z
B) A T Z
C) A || B
D) X T A

Answers

Answer:

Well I would say the answer is A

Step-by-step explanation:

Because there is no metion of line A

Hope this helps have an awsome day!

forty three thousandths as a decimal? please hurry i need an answer now!

Answers

Answer:

0.043

Step-by-step explanation:

Answer 0.043

This is correct because each decimal after the dot adds.

Hope this was helpful :)

someone please help me

Answers

Answer:

that's an angle bisector my man

Corresponding Angle is the answer

Which of the following rational number between 3/7 and 7/8 ?
13/56
19/56
27/56
53/56

Answers

Answer:

Step-by-step explanation:

There are two ways to do this. You could use your calculator to find out the decimal numbers that are equivalent to the two given fractions. Then check which one of the givens falls between these two numbers. I wouldn't do it that way -- not when you are told that the answer has 56 as the denominator.  So ...

The best way to do it is to change the two givens so that they have a denominator of 56

3/7 = 3*8/7*8 = 24 / 56

7*7 / 7*8 = 49 / 46

So you need a number that is between 49 and 24

There is only one 27 / 56

What is the value of 32.5 ÷ 4.5 × − 4.5 , written as a decimal?
giving brainly

Answers

Answer:

-32.5 hope this helps:)

The answer is (-32.5)

The 4.5 both cancel each other out

The base of a 14-foot ladder is 5 feet from a building, If the ladder reaches the flat roof, how tall is the building?

Answers

Using trigonometry you use cosine and get a final answer of 13.067 ft tall

The height of the wall of the building is 13.067 feet.

What is the Pythagorean theorem?

Pythagorean theorem states that in the right angle triangle the hypotenuse square is equal to the square of the sum of the other two sides. According to this statement, the areas of the squares on the other two sides add up to the size of the square whose side is the hypotenuse.

Given that the base of a 14-foot ladder is 5 feet from a building. The height of the building will be calculated as below:-

Applying the Pythagorean theorem to calculate the height of the building.

H² = P² + B²

14² = P² + 5²

P² = 14² - 5²

P = √171 = 13.07 feet

Therefore, the height of the wall of the building is 13.067 feet.

To know more about the Pythagorean theorem follow

https://brainly.com/question/343682

#SPJ2

Solve for p.


3(p + q) = p


A. q = â€"two-thirds

B. q = â€"start fraction three over two end fraction

C. p = â€"two-thirds

D. p = â€"start fraction three over two end fraction


Solve for b, then find the value of b when a = 3.


4a = 2b â’ 7

A. â€"nine-halves

B. five-halves

C. nineteen-halves

D. 17


d = rt

A. r = dt

B. r equals t over d

C. r equals d over t

D. r equals d minus t


Find the width of a rectangle with a perimeter of 90 and a length of 15.

A. 90

B. 15

C. 45

D. 30

Answers

Answer: C

Step-by-step explanation:

thank me later

Find the measure of the missing angles.
98°
с
b

Answers

Answer: b and c = 82 degrees

Explanation: Angle of a straight trine adds up to 180 degrees

180 - 98 = 82

Angle b and c are vertical angles, so they have the same measure.

Answer:

196

Step-by-step explanation:

a- 98

b-196

c-196

d=98

add 98+98=196

5a+3a-4=36


Somebody please answer this

Answers

Answer:

a=4

Step-by-step explanation:

combine like terms

8a-4=36

add on both sides

8a-4+4=36+4

8a=32

divide

a=32/8

a=4

Answer:

a = 5

Step-by-step explanation:

5a+3a = 8a

8a - 4 = 36

8a - 4 + 4 = 36 + 4

8a = 40

a = 40 divied by 8

a = 5

guess my age and ill make you brianlest 2007 8 14

Answers

Answer:

15 or 16

is it? I dont know

Answer:

14 year old

Step-by-step explanation:

8 14 2007

which units in the metric system are used to measure distance?

Answers

Answer:

In the metric system of measurement, the most common units of distance are millimeters, centimeters, meters, and kilometers.

I think it is right ...

1
Select the correct answer.
What is the solution for t in the equation?
It - t = 2
=
.
t =
7
30
A. B.
t
11
O C.
t = 6
OD.
30

Answers

A i think is the answer

qs and tv are parallel lines​

Answers

answer:
angle vuw and angle sru


explanation:
corresponding angles

Without finding the product, what is the sign of this product?(-4)(-1)(-2)(-6)(-3)(-5)(-2)(-2)​

Answers

Answer:

positive (+)

Step-by-step explanation:

- × - = +

+ × - = -

+ × + = +

Answer:

there are 8 numbers, all are negetive and they are multiplied with each-other

we know, (-negative)(-nagative) = positive number

so even quantity of negative numbers multiplied with each-other makes a positive number.

so the sign of the product is +

Step-by-step explanation:

For my mathematics homework

Answers

Answer:

how do u solve this?

Step-by-step explanation:


A manager started a meeting with his staff at 9:30.The meeting ended at 10:25.How long did the meeting last

Answers

Answer:   55 minutes

Step-by-step explanation:

How long the meeting last = End time - Starting time

                =  10:25 - 9:30

                =  9:85 - 9:30   [I converted 10:25 to make it easier to see the

                                           subtraction. This is posibble because 1hr = 60mins]

                = 55 mins

Evan ran 20 meters in 5.8 seconds. Yelena ran 20 meters in 5.4 seconds. Who ran faster? Explain how you
know.

Answers

Answer: Yelena

Step-by-step explanation:

5.4 is shorter than 5.8

Answer:

Yelena

Step-by-step explanation: I know this because Yelena and Evan both ran the same distance, but Yelena's time for the run was faster than Evan's.

x−5/8=2x−1 solve for x

Answers

Answer:

[tex] if \: \frac{x - 5}{8} = 2x - 1) \times 8 \\ x - 5 = 16x - 8 \\ 15x = 3 \\ x = \frac{15}{3} \\ \therefore \: x = 5 \\ if \: your \: quetion \: is \\ x - \frac{5}{8} = 2x - 1) \times 8 \\ 8x - 5 = 16x - 8 \\ 8x = 3 \\ x = \frac{3}{8} \\ try \: to \: use \: brackets \: next \: time[/tex]

order -.48, -.47, -.45, -.46 from least to greatest pls​

Answers

It’s already in the order of least to greatest

Answer:

-0.48, -0.47, -0.46, -0.45

Step-by-step explanation:

Initially, you may think to put -0.45 as the least value out of the four. However, we are dealing with negatives. This changes the way we order the numbers.

Here's what you need to know:

The closer a negative number is to 0, the greater it is. The farther a negative number is to 0, the less it is. For instance, -1 is a lot closer to being a positive number as opposed to -14.

Now, you apply that concept to this question.

-0.45 is the greatest since it is closer to 0 than -0.48!

I hope you find this helpful :D

NEED ANSWER ASAP! State the possible RATIONAL zeros for the function. Then find all the rational zeros. Use the rational zeros theorem (p/q) and please show work!! tysm!!!

the function:
f(x) = 3x^3 + 11x^2 + 5x - 3

Answers

Answer:

Use the Rational Zero Theorem to find rational zeros

Step-by-step explanation:

numbers between 1/10 and 4/5?​

Answers

I believe your answer is 2/10,3/10,4/10,5/10,6/10,7/10.

4/5 can be converted to 8/10 by multiplying the denominator and the numerator by 2 so the new numbers are 1/10 and 8/10 the numbers that are between that are 2/10,3/10,4/10,5/10,6/10,7/10.

x^2 - 6x + 1 = 0 by completing the square​

Answers

Answer:

See below.

Step-by-step explanation:

x^2 - 6x + 1 = 0

x^2 - 6x = -1

We halve the coefficient of  x (which is -6/2 = -3) and square it, then add this to both sides:-

x^2 - 6x + (-3)^2 = -1 + (-3)^2

x^2 - 6x + 9 = -1 + 9

(x - 3)^2 = 8

x - 3 = ±√8

x =  3 ± √8

= 0.17, 5.83   to 2 decimal places.

Answer:

[tex]x = - 2 \sqrt{2} + 3 \\ or \\ x = 2 \sqrt{2 } + 3[/tex]

Other Questions
Suppose we know that a confidence interval is (27,35), with a margin of error of 4. Find the sample mean (x). What mean History is human action and human action is history 13. Amy will rent 10 different movies this month.A one-day rental fee is $1.50.A monthly pass is $10.00. (Unlimited visits during the month)How much money will Amy save by buying a monthly pass? Please help I will give you brainless please Which phrase describes the partial meaning of the underlined word in this sentence? A volcano, from its caldera all the way down to its laccoliths and magma chambers, is a serious danger A. A trait of magma B. A part of a volcano C. A result of erupting D. A type of volcano Match the letter with the corresponding Workspace Area Options :-workspace settings-options bar-menu bar-toolbar Explain the term soil profile (needs to be a paragraph) Which statements describe elliptical galaxies? *Select the two correct answers.* A. They include the Milky Way.B. They are the most common galaxy type. C. They typically contain very little gas and dust.D. They include the universe's largest galaxies. Which group on the Periodic Table has elements that would easily combine with elements from Group 1 (which have one valence electron) because they have 7 valence electrons? Micah is saving to buy a new guitar and every month is putting $45 from his paycheck into his savingsaccount. He has already saved $120. How many more months will it take before he has enough to buythe guitar if it costs $415? Following the example ofBeethoven's Symphony No.3, manysymphonies composed during theEarly Romantic period increasedA. to eight hours or longer.B. from five minutes to 70 minutes.C. from about 20 minutes to 45 minutes or longer. Please help me with this question! Right answers only! In a friendly soccer game, you hit a ball with a speed of 13 m/s at an angle of 24 degrees above the horizontal. (A) How long does it take for the ball to reach the goal if it is 4.2 meters away? (B) How high is the ball when it reaches the goal? Express 8 1/5% as a mixed number or a fraction Please show work so I can understand it so I know what to do on problems that look like this in the future How does the rock cycle and plate tectonics interfere with geochemists trying to determine the age of the Earth? Chose the best answer. The rock cycle and plate tectonics cause Earth to lose its outer layer every one billion years as it creates new crust.The rock cycle and plate tectonics cause Earth's rocks to break down over time and they are recycled through natural processes. The rock cycle and plate tectonics cause Earth's original rocks to be buried deep in the ocean where they cannot be discovered. A 26 ft ladder leaning against a wall begins to slide. How fast is the top of the ladder sliding down the wall at the instant of time when the bottom of the ladder is 10 ft from the wall and sliding away from the wall at the rate of 3 ft/sec? Which trade routes connected the cities of Krakw and Kiev? NEED HELP!!!!! 12 POINTS!!!!If there are two objects of equal size but object A is heavier than object B, which statement is TRUE according to Newtons second law of physics?OPTIONS:A. Object A will require less force to be set in motion and will travel faster.B. Object B will require less force to be set in motion and will travel faster.C. Object A will require more force to be set in motion but will travel faster than object B.D. Object B will require more force to be set in motion but will travel faster than object A.PLEASE NO LINKS 1. He cuts his hair and bleaches it to avoid being identified. He tells the story. * 1 point 2.) This is the Spy for the Greasers. * 1 point 3.) This guy is always cracking Jokes and getting his two cents in. * 1 point 4.) This character is the pet of the greaser gang. * 1 point 5.) Ponyboy runs away after this character hits him * 1 point 6.) He is the wild one of the group but has a soft spot for Johnny. * 1 point 7.) He ends up getting killed in the park by a switchblade. * 1 point 8.) This is the greaser known for his looks and rodeo skills. * 1 point 9.) What does Cherry say is the main difference between Greasers and Socs? * 1 point a. Greasers feel too violently and Socs dont feel anything b. Greasers dont have money and Socs do c. Greasers are mean and Socs are nice d. Greasers deserve what they get and Socs never get in trouble 10.) What are the Greasers two rules? * 1 point a. Fight with weapons, dont get caught b. Dont get caught, back up your buddies c. Back up your buddies, steal what you can d. Hustle, Loyalty, Respect 11.) What is the Main Conflict in The Outsiders? * 1 point a. Johnny killing a Soc b. Cherry Valance working with the Greasers c. The Socs and Greasers hate each other and that is leading to confrontations. d. The Greasers keep getting jumped by the Socs. 12.) What event below was foreshadowed in The Outsiders? * 1 point a. Ponyboy and Johnny getting jumped b. The fire at the church c. Ponyboy getting sick from cigarettes d. All of the above 13.) What did Johnny notice about Bob that scared him? * 1 point a. He was a Soc b. He was wearing rings c. He had a knife d. He had a gun 14.) Why does Johnny want to turn himself in? * 1 point a. So Ponyboy does not get into trouble b. Cherry Valence said she would testify that it was self defense c. He thought he had a good chance of getting off easy d. All of the above 15.) What does Ponyboy realize Darry is really afraid of at the hospital? * 1 point a. Nothing b. Ponyboy hating him c. Pony and Soda leaving him d. Ponyboy running away How does the phrase "strength in unity and in the vulnerability of the divided" affect the overall meaning of the paragraph? what is the name of the process that happens in the mitochondria?