Given f (x) = 5x - 3, find f (-2)

Answers

Answer 1

Answer:

f(- 2) = - 7

Step-by-step explanation:

To evaluate f(- 2) substitute x = - 2 into f(x), that is

f(- 2) = 5(- 2) + 3 = - 10 + 3 = - 7


Related Questions

Three times the sum of a number and 9 is 12 find the number

Answers

Answer:

324

Step-by-step explanation:

9 x 12 = 108 x 3 = 324....yay

Help!!!! I need this due my 9:30

Answers

D! 33.85 is 15 less than 34 and 16.29 is 29 more than 16

Answer:

D. Subtract 15 cents and add 29 cents

Step-by-step explanation:

He should subtract 15 cents and add 29 cents. This is because at 33.85 we estimated to 34 dollars which was 15 cents higher, so we must subtract by 15 to get to the exact cost. We also need to add 29 cents since we rounded down from 16.29 to 16.

use double number lines to find the missing number​

Answers

I belive it’s 320! I hope this helped

Answer:

320

Step-by-step explanation:

80 is 25% of:

ok how we do this is 25% of something is 1/4 of something

so 80 is 1/4 of:

yep, 80 x 4.

80 x 4 is 320, there is your answer!

Yw :D

Consider the following formula used to find the volume of a cone.
h
V = ir2
3
Which of the following represents the formula that could be used to find the height of the cone?

Answers

[tex]\\ \sf\longmapsto V=\pi r^2\dfrac{h}{3}[/tex]

[tex]\\ \sf\longmapsto \dfrac{h}{3}=\dfrac{V}{\pi r^2}[/tex]

[tex]\\ \sf\longmapsto h=\dfrac{3V}{\pi r^2}[/tex]

Option B

Answer:

[tex] \hookrightarrow \: { \rm{V = \pi {r}^{2} \frac{h}{3} }} \\ [/tex]

• simplify making h the subject:

[tex]{ \rm{3V = \pi {r}^{2} h}} \\ \\ { \boxed{ \boxed{ \rm{h = \frac{3V}{\pi {r}^{2} } \: }}}}[/tex]

HELP LAST ATTEMPT ( get marked brainliest show work

Answers

Answer:

D

Step-by-step explanation:

Area of H = 25pi

Area of J = 225pi

225pi/25pi = 9

Evaluate.

38−(7+2×4)+182

Enter your answer in the box.

the answer is 32

Answers

[tex]205[/tex]

hope it helps

The endpoints of are A(2, 2) and B(3, 8). is dilated by a scale factor of 3.5 with the origin as the center of dilation to give image . What are the slope (m) and length of ? Use the distance formula to help you decide: .
A.
m = 6, A'B' =
B.
m = 21, A'B' = 3.5
C.
m = 21, A'B' =
D.
m = 6, A'B' = 3.5

Answers

D m=6, A’B’=3.5 answer to question

Answer:

Step-by-step explanation:

Deon plans to ride a 15 mile bicycle trail. If his average speed is 20mi/h, which equation can he use to find the time t, in hours, for the ride?

Answers

Answer

15=20t

Step-by-step explanation:

Answer:

t = 15 / 20

Step-by-step explanation:

Given:

Distance traveled by Deon to ride a bicycle trail = 15 mile

Average speed of Deon to ride a bicycle trail = 20 mi/hour

Step-by-Step:

Let 'T' be the time taken to ride the bicycle trail.

We will use distance speed formula to write the equation to find the time 'T' in hours, for the ride.

[tex]Distance=\frac{Speed}{Time}[/tex]

Distance = 15 miles

Speed = 20 miles / hour

Time = 15 / 20

Assuming time is t, the formula would be:

t = 15 / 20

"t = 15 mi/ 20 mi/hr " will help Deon calculate the time he will take.

Therefore, t = 15 / 20

what is 1\4y+3/8 factored

Answers

Answer:

[tex] \frac{1}{4} (y + \frac{3}{2} )[/tex]


Let's Create
Fill in the blank with the value that will make the equation true.

1) __+2/3= -1/4
2) __-3/4= -7/12
3) __÷3/4= -2
4) __÷0.04=800
5) (____)(5.6)= -6.72

Let's Analyze
Fill in the blank with the value that will make the equation true.

1) 1/4+___=7/12
2) 5/8-___= -3/8
3) 1/3÷___= 1/9
4) (2.1)(____)=0.63
5)_____-0.98= -7.65

Answers

Answer:

.

1) 1/4+___=7/12

2) 5/8-___= -3/8

3) 1/3÷___= 1/9

4) (2.1)(____)=0.63

value

My work is already late because I was suppose to turn it in at 9:30 PM sooo like help?

Answers

The answer is 500.902 hope you get it right

is it normal to forget things almost 4 months after a concussion?

Answers

Answer:

Yes I've had that too

Step-by-step explanation:

I had mine for about 5-6 months

Answer:

Yes, a concussion can cause long-term memory loss and recurring short-term memory loss, even weeks, months, or years after the head trauma. Usually, this is known as a symptom of post-concussion syndrome

7 1/3 or 6 2/3 pls help

Answers

Answer:

7 3/3

Step-by-step explanation:

+3221654236583217089

Salaries for teachers in a particular elementary school district are normally distributed with a mean of $41,000 and a standard deviation of $7,200. We randomly survey ten teachers from that district. (Round your answers to the nearest dollar.)
(a) Find the 90th percentile for an individual teacher's salary.
$


(b) Find the 90th percentile for the average teacher's salary.
$

Answers

Using the normal distribution and the central limit theorem, it is found that:

a) The 90th percentile for an individual teacher's salary is $50,216.

b) The 90th percentile for the average teacher's salary is $43,914.

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

It measures how many standard deviations the measure is from the mean.  After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation given by [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

In this problem:

Mean of $41,000, thus [tex]\mu = 41000[/tex].Standard deviation of $7,200, thus [tex]\sigma = 7200[/tex].

Item a:

The 90th percentile is X when Z has a p-value of 0.9, so X when Z = 1.28. Thus:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]1.28 = \frac{X - 41000}{7200}[/tex]

[tex]X - 41000 = 1.28(7200)[/tex]

[tex]X = 50216[/tex]

The 90th percentile for an individual teacher's salary is $50,216.

Item b:

Average for a sample of 10, thus [tex]n = 10, s = \frac{7200}{\sqrt{10}}[/tex].

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]1.28 = \frac{X - 41000}{\frac{7200}{\sqrt{10}}}[/tex]

[tex]X - 41000 = 1.28\frac{7200}{\sqrt{10}}[/tex]

[tex]X = 43914[/tex]

The 90th percentile for the average teacher's salary is $43,914.

A similar problem is given at https://brainly.com/question/24663213

hi! ❤️ I’m looking for help here thanks.

Answers

Answer:

CBA = 88

BCA = 44

Step-by-step explanation:

Hope this helps! Pls give brainliest!

The denominator of a fraction is two more than the numerator. If both numerator and denominator are increased by one, the simplified result is 6/7. Find the original fraction.

Answers

Answer:

10/12

Step-by-step explanation:

Let's work backwards.

We decrease both 6 and 7 by one, then we get 5 and 6. So our new fraction is 5/6. We know that the denominator is two more than the numerator, so we have to pick numbers that are multiples of 5 and 6 and make it so the denominator is two more than the numerator.

Lucky for us we only have to multiply 5 and 6 by 2 to get an answer that works:

10/12

A number is doubled and then increased by seven. The result is fifty-one. What is the original number?

Answers

Answer: I believe it's 22

Step-by-step explanation:

51 - 7 = 44

If the result is 55 and was increased by 7, you'll subtract 7 from 55 and you'll get 44.

44/2 = 22

To find the number that is doubled and makes up 44, you'll divide 2 from 44 and you'll get 22

Anyone know the answer ? Please help asap :((

Answers

Answer:

Point B

Step-by-step explanation:

Answer:

the answer is point b...

Childhood participation in sports, cultural groups, and youth groups appears to be related to improved self-esteem for adolescents (McGee, Williams, Howden-Chapman, Martin, & Kawachi, 2006). In a representative study, a sample of n = 100 adolescents with a history of group participation is given a standardized self-esteem questionnaire. For the general population of adolescents, scores on this questionnaire form a normal distribution with a mean of μ = 50 and a standard deviation of σ = 15. The sample of group-participation adolescents had an average of M = 53.8.
Does this sample provide enough evidence to conclude that self-esteem scores for these adolescents are significantly different from those of the general population? Use a two-tailed test with α = .05.

Answers

Testing the hypothesis, we can conclude that since the p-value of the test is 0.0114 < 0.05, which means that the sample provides enough evidence to conclude that self-esteem scores for these adolescents are significantly different from those of the general population.

At the null hypothesis, we test if the mean is the same of the general population, that is:

[tex]H_0: \mu = 50[/tex]

At the alternative hypothesis, we test if it is different, that is:

[tex]H_1: \mu \neq 50[/tex]

The test statistic is given by:

[tex]z = \frac{M - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

For this problem, the parameters are:

[tex]M = 53.8, \mu = 50, \sigma = 15, n = 100[/tex]

Then, the value of the test statistic is:

[tex]z = \frac{M - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]z = \frac{53.8 - 50}{\frac{15}{\sqrt{100}}}[/tex]

[tex]z = 2.53[/tex]

Two tailed test, so the p-value is P(|z| < 2.53), which is 2 multiplied by the p-value of z = -2.53.

Looking at the z-table, z = -2.53 has a p-value of 0.0057

2(0.0057) = 0.0114

The p-value of the test is 0.0114 < 0.05, which means that the sample provides enough evidence to conclude that self-esteem scores for these adolescents are significantly different from those of the general population.

A similar problem is given at https://brainly.com/question/25147864

HELP. FIND X AND EXPLAIN THE ANSWER

ANSWER CHOICES:

A. x=-3
B. x=4
C. x=48
D. x=29

Answers

Answer:

D. x=29

Step-by-step explanation:

(2x-10)+(4x+16)=180

6x+6=180

6x=174

x=29

What term describes the amount you must pay in order to be considered “up-to-date” with your credit card payments?
Interest
Minimum payment
Closing balance

Answers

Minimum payment of the credit card balance as it was stipulated in your bill

Please answer!no links!!

Picture is included

I selected b but not sure…

Answers

Answer:

B is the correct answer darling

Step-by-step explanation:

don't doubt yourself :)

have a lovely day <3

Answer:

B

Step-by-step explanation:

[tex]\dfrac{-1}{5}(30x-10)=15\\\\ \dfrac{-1}{5}*30x -10* \dfrac{-1}{5}=15\\\\-6x + 2 = 15[/tex]

Select the correct answer from each drop-down menu.
Kurt deposited money into his bank account every month. The amount of money he deposited in the first 5 months of 2014 is listed in the table.

Month Amount Deposited
(dollars)
January 1,200.32
February 985.43
March 1,200.65
April 1,987.34
May 1,000.98
The total amount of money that Kurt had deposited into his account at the end of May is
$6,374.72
. The total amount of money that he had deposited into his account at the end of March is
.
Reset

Answers

9514 1404 393

Answer:

  $3386.40

Step-by-step explanation:

The amount at the end of March can be found two ways:

  add up the deposits for Jan, Feb, Mar:

     1200.32 +985.43 +1200.65 = 3386.40

  subtract Apr and May from the May total:

     6374.72 -1000.98 -1987.34 = 3386.40

The total amount of money that he had deposited into his account at the end of March is $3386.40.

Find the 16th term of the arithmetic sequence whose common difference is d=9 and whose first term is a, = 1.

Answers

Answer:

136

Step-by-step explanation:

Common difference of 9 means that each term is 9 apart from each other:

1 + 9 = 10 + 9 = 19 + 9 = 28 ...

We can then find the nth term

The difference is 9 → 9n

The 0th term is 1 - 9 = -8

nth term = 9n - 8

Finally plug in (substitute) 16 for n

9(16) - 8 = 144 - 8 = 136

The 16th term is 136

Question : -

Find the 16th term of the arithmetic sequence whose common difference is d=9 and whose first term is a, = 1.

Given : -

common difference ( d ) = 9

first term ( a ) = 1

To Find : -

We have to find the 16th term of Arithmetic Progression or sequence .

Concept : -

Concept of this question belongs to arithmetic progression ( sequence ) where we can find the values of a , d , nth term by using nth term formula .

So Starting the Solution : -

We know that 16th term of a.p. is ,

a + ( 16 - 1 ) d

a + 15 d --------- ( 1 )

Here value of ,

a = 1

d = 9

Substituting, value of a and d in equation 1 :

1 + 15 ( 9 )

1 + 135

136

Therefore , 16th term of the given arithmetic progression is 136 .

# [tex] \rm{Keep \: Learning}[/tex]

12345678910121314151617181920 so i can know answer my question yeet help me ​

Answers

Answer:

1) 529

2) 20.5

3) 7,216

4) 13238.2

5) 254.75

Step-by-step explanation:

1) Multiplication 2) Subtraction and Addition 3) Addition and Multiplication 4) Subtraction 5) Multiplication and Subtraction

-ROR

Answer:

1) 529

2) 20.5

3) 720.6

4) 13238.2

5) 254.75

Step-by-step explanation:

You either multiply, add, subtract or divide the numbers.

4(3M - 2) + 2(2M - 1) when M = 5

Answers

Answer:

70

Step-by-step explanation:

4(3m-2)+2(2m-1)

4(3×5-2)+2(2×5-1)

4×13+2×9

52+2×9

52+18

HELP LAST ATTEMPT to ( get marked brainliest show work !

Answers

Answer:

B. 5 3/4 feet

Step-by-step explanation:

33 sq ft is the total area so you need the side lengths, its a square rug, so you just square the number

sqrt 33 = 5 3/4

Answer:

B. 5 3/4 feet

Step-by-step explanation:

33 sq ft is the total area so you need the side lengths, its a square rug, so you just square the number

sqrt 33 = 5 3/4

Manuel the trainer has two solo workout plans that he offers his clients: Plan A and Plan B. Each client does either one or the other (not both). On Monday there were 12 clients who did Plan A and 2 who did Plan B. On Tuesday there were 3 clients who did Plan A and 5 who did Plan B. Manuel trained his Monday clients for a total of 21 hours and his Tuesday clients for a total of 12 hours. How long does each of the workout plans last?

Answers

the answer is akuma di ra 33

The sum of two numbers is
17. Their difference is 41. Find the numbers.

Answers

Answer:

The numbers are 12 and −29.

Mark me as the brainlist

There are 28 students in a class. Sixteen of the students are men. What percent of the class are women? Round to the nearest tenth.

Answers

Answer:

42.9%

Step-by-step explanation:

If 16 are men, this means 12 of the students are women (28 - 16 = 12)

So, 12 out of 28 are women = 12 ÷ 28 = 0.42857... = 42.857...% = 42.9%

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They never came back. In crossing the moor to their favourite snipe-shooting ground they were all three engulfed in a treacherous piece of bog. It had been that dreadful wet summer, you know, and places that were safe in other years gave way suddenly without warning. Their bodies were never recovered. That was the dreadful part of it. Here the childs voice lost its self-possessed note and became falteringly human. "Poor aunt always thinks that they will come back some day, they and the little brown spaniel that was lost with them, and walk in at that window just as they used to do. That is why the window is kept open every evening till it is quite dusk. Poor dear aunt, she has often told me how they went out, her husband with his white waterproof coat over his arm, and Ronnie, her youngest brother, singing, Bertie, why do you bound? as he always did to tease her, because she said it got on her nerves. Do you know, sometimes on still, quiet evenings like this, I almost get a creepy feeling that they will all walk in through that windowShe broke off with a little shudder. It was a relief to Framton when the aunt bustled into the room with a whirl of apologies for being late in making her appearance."I hope Vera has been amusing you? she said."She has been very interesting, said Framton."I hope you dont mind the open window, said Mrs. Sappleton briskly; "my husband and brothers will be home directly from shooting, and they always come in this way. Theyve been out for snipe in the marshes today, so theyll make a fine mess over my poor carpets. So like you men-folk, isnt it?She rattled on cheerfully about the shooting and the scarcity of birds, and the prospects for duck in the winter. 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