Mathematics High School

a b c or d help me plzz

A B C Or D Help Me Plzz

Answers

Answer 1

Answer:

D

Step-by-step explanation:

Answer 2

Answer:

The correct answer is D

Step-by-step explanation:

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Related Questions

Solve pls

for the function -2x²+x+1 find f(3)

Answers

Answer:

f(3) = -14

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = -2x² + x + 1

f(3) is x = 3

Step 2: Evaluate

Substitute:                    f(3) = -2(3)² + 3 + 1Exponents:                   f(3) = -2(9) + 3 + 1Multiply:                        f(3) = -18 + 3 + 1Add:                              f(3) = -15 + 1Add:                              f(3) = -14

hii please please help i’ll give brainliest if you give a correct answer tyyyyy

Answers

6 because Elena is gaining by 2 miles every hours, so if there is a 12 mile difference it will take Elena 6 hours to catch up

What is the value of the expression 5ab - 2c, where a = 2, b = 3 and c=0?
A 8
B 28
C 30
D 503

Answers

Answer:

30

Step-by-step explanation:

5*2*3-2*0 ( when we multiply any number with zero then the result is also zero)

30-0

30

for the function -2x²+x+1 find f(3)

Answers

Answer:

-14

Step-by-step explanation:

Plug 3 in for x

-2 (3)² + 3 + 1

-2 (9) + 3 + 1

-18 + 3 + 1

-14

Answer:

f(3) = -14

Step-by-step explanation:

[tex]f(x)=-2x^{2} +x+1\\f(3)=-2(3)^2+3+1\\f(3) = -2(9)+4\\f(3) = -18+4\\f(3) = -14[/tex]

Martha estimated there were 91 marbles in a jar for a contest. The actual number of marbles in the jar was 113. What was the percent error of Martha's estimation?
A. 24.18%
B. 80.53%
C. 22%
D. 19.47%

Answers

Answer:

D. 19.47

Step-by-step explanation:

91/113 = 80.53

100.00-80.53 = 19.47

Answer:

19.47% to the nearest hundredth.

Step-by-step explanation:

Value of the error = 113 - 91 = 22.

Percent error = (22/113) * 100

= 19.47.

Can somebody help me thank you.

Answers

Answer:

perimeter of the following figure will be equal to 440 miles.

Step-by-step explanation:

perimeter refers to measure of total boundaries of a figure

hence perimeter will be the sum off all sides

so , P = 170 + 30 + 160 +80 = 440 miles

i hope u got it.

have a great day .

Select the three situations that model a sum of zero.
Explain your answer. ​

Answers

i believe it’s the first third and fourth because, 10 and -10 cancel out to 0, moving 12 and going -12 back also cancels out and the car returns to the ground so the toy car ends in the same place it started

Answer:

Step-by-step explanation:

1,2,4

Christine's middle school total of 900 students and 45 teachers. The local high school has 110 teachers and a student-teacher ratio propotional to the middle school's. How many students find when she gets to high school

Answers

Answer:

2,200

Step-by-step explanation:

From the above, we were given that;

Total students in Christine's middle school = 900

Teachers in Christine's middle school = 45 teachers

Local high school = 110 teachers

Then, we can write an equation ratio and solve it.

900 students / X = 45 teachers / 110 teachers

If we cross multiply, we'll get

900 × 110 = 45 × X

45X = 99,000

Divide both sides by 45

45X/45 = 99,000/45

X = 2,200

Therefore, Christine would find 2,200 students when she gets to high school.

How would you divied 15 in half. If you answer, i will revial 2 things

Answers

Answer:

7.5

Step-by-step explanation:

if you are looking for gae anime to watch YOU NEED TO WATCH GIVEN

Answers

Answer:

.....

..

Step-by-step explanation:

umm.

ok free points if

Hello There! I, personally, dont like gae anime's.... But thanks for free points ;)!!!

Hope This Helps! Have A Great Day!

What does this equal me nor my brother can figure this out

Answers

Answer:

2 14/18

Step-by-step explanation:

because you just multiply the numerators and denomitors you must make an improper fraction first though

Help me please due in 20 minutes

Answers

Answer:

y=4

Step-by-step explanation:

What’s the answer???

Answers

Answer:

i'm not sure what is it ?

Step-by-step explanation:


[tex]y - 2x = 7[/tex]
how do i solve this?​

Answers

what is the question looking for? X or y?

Which is the most accurate way to estimate 52% of 63

Answers

You can put 63 in the calculator and multiply is by .52 which will give you 32.76

identify like terms 2d 5f 2g 7 3g g

Answers

Answer:

Step-by-step explanation:

The degrees of the terms in the order given are 2, 4, 1, 3, 0. The second-highest of these numbers is 3, and the corresponding term is ...

 B: -g^3

(3g+5)(2g-7)

(3g+5)(2g-7)=6g²-21g+10g-35 = 6g²-11g-35

A person invests 3000 dollars in a bank. The bank pays 4.25% interest compounded semi-annually. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 5600 dollars?

Answers

Answer:

The person must leave the money for approximately 14.8 years.

Step-by-step explanation:

This can be calculated using the formula for calculating the future value as follows:

FV = PV * (1 + r)^n …………………………………. (1)

Where;

FV = Future value of the investment = 5600

PV = Present value of the investment = 3000

r = semiannual interest rate = 4.25% / 2 = 0.0425 / 2 = 0.02125

n = number of semiannuals = ?

Substitute the values into equation (1) and solve for n, we have:

5600 = 3000 * (1 + 0.02125)^n

5600 / 3000 = 1.02125^n

1.02125^n = 1.86666666666667

Loglinearizing both sides, we have:

nlog1.02125 = log1.86666666666667

n = log1.86666666666667 / log1.02125

n = 0.271066772286539 / 0.0091320695404719

n = 29.6829509548973

Since n is number of semiannuals, we divide the answer by 2 obtain the number of years as follows:

Number of years = 29.6829509548973 / 2 = 14.8414754774487

Rounding to the nearest tenth of year, we have:

Number of years = 14.8

Therefore, the person must leave the money for approximately 14.8 years.

Skyler has twice as many apples in her grocery bag as her
friends Macy and Janelle combined. Macy has 15 apples
in her bag. Skyler has 50 apples in her bag. How
many apples does Janelle have in her grocery bag?

The equation 2(x + 15) = 50 models this situation. Which choice shows the
sequence of operations needed to solve this problem, using both arithmetic
and algebra?

A. Subtract 15 divide by 2 X = 35/2

B. Subtract by 15 divide by 2 X = 10

C. Divide by 2 subtract by 15 X = 10

D. Divide by 2 subtract by 15 X = 35/2

Answers

Answer:

Step-by-step explanation:

It's C.

C
The point (-3,5) is going to be reflected over the line y=-x. What are the
coordinates of the image?*

Answers

Answer:

25 x

Step-by-step explanation:

Help will mark brainliest answer

Answers

Answer:

i think its 75

Step-by-step explanation:

bend your head to the right and compare to a 90 degree square

it's acute

Answer: 75°

Step-by-step explanation:

m∠BGC + m∠AGB + m∠AGE = 180°

m∠BGC + 31 + 74 = 180°

m∠BGC + 105 = 180°

m∠BGC = 75°

Mr. Demers is making a drink by adding flavor drops to his water. If he puts 3 drops in a 12 ounce glass of water, how many ounces does he use PER DROP?

Answers

Answer:

Step-by-step explanation: if he puts 3 drops in a 12 ounce glass of water he should be using 4 ounces per drop 12 ounces divided by 3 drops gives you 4 ounces per drop

Answer: 4 ounces per drop

=======================================================

Explanation:

"Per drop" means "per 1 drop" or "for each 1 drop".

We start off with the ratio of

3 drops: 12 ounces

Divide both parts of that ratio by 3 so that "3 drops" turns into "1 drop"

Doing so gets us the new ratio of

1 drop: 4 ounces

So he uses 4 ounces per drop.

Your employees spend 50% of their time walking around your shop, and you find you can improve workflow to reduce walking distances by 20%. If your payroll is about $11,000 per week, what is a good estimate of the annual economic impact of improving workflow?

Answers

Answer:

Step-by-step explanation:

57,200

Solve: y = -7(-13)
it said 21 was wrong

Answers

Answer: y = 91

Step-by-step explanation:

y = -7(-13)

y = -7 x -13

y = 91

there are 12 boys and 8 girls in the french club.
1) what is the ratio of boys to girls?
A. 2:5
B. 3:5
C: 2:3
D: 3:2
2) what percent of the members of the french group are girls?
A) 8%
B) 40%
C) 60%
D) 75%

Answers

Answer:

1)

D. 3:2

2)

B. 40%

as, no. of girls=8

total no. of students =12+8=20

now,

percentage of girls=no.of girls/total no. of students ×100%

=8/20×100%

=40%

I low key need halp. Very soon, please send halp. :>

Answers

Each flower arrangement will have 5 lillies and 13 roses
Not sure but maybe, 6(5l + 13r)

Which is an example of a statistical question?

|
|How old am 1?
How old is the teacher?
How old will I be after my next birthday?
How old are the students ín math class?

Answers

Statistic questions can only be answered with collective data

Answer: how old are the students in the math class

Why: because their ages vary and can be used as data

Answer:

Question 4 is a statistical question aka answer D

Step-by-step explanation:

Correct on edge

A wheel makes 35 revolutions per min. How many revolutions does it make per second?
The wheel makes revolutions per second.
(Type an integer or a simplified fraction.)

Answers

Answer:

7/12 revolutions per second

The wheel makes revolutions per second is 7/12.

What is the unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given that, a wheel makes 35 revolutions per min.

Here,

35/1 minute × 1 minute/60 seconds

= 35/60

= 7/12 revolution per second

Therefore, the wheel makes revolutions per second is 7/12.

To learn more about the unitary method visit:

brainly.com/question/22056199.

#SPJ2

can someone help me pls

Answers

I shown my work in the picture below along with the answer

How would you solve this?

Answers

Answer:

For the equation, you should subtract 2x on both sides to get -y = -2x - 4.  Flip the y's negative sign to get a proper function which is y = 2x + 4.  The y-intercept is at (0, 4) and each unit will move two units up along the x-axis.

I will give you the brainlist and 5 stars if you answer this. This is for simple probability.

A refrigerator has a variety of drinks. The contents are shown below. if one drink is picked randomly, then which of the following is NOT true. This is the content:

Drinks: Quantity:

Water - 14

Cola - 28

Lemonade - 7


A. You are twice as likely to select a cola than a water.

B. You are half as likely to select a lemonade than water.

C. You are more likely to select a cola than a water or a lemonade.

D. You are twice as likely to select a water than a cola.

Answers

Answer:

d is false

Step-by-step explanation:

water = 14 and cola is 28

you are half as likely to select a water than cola

D is false. You are twice as likely to select a water than a colo
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