PLEASE HELP!!!!!! 20+ POINTS
I have not been paying attention in class at all for the past 3 weeks, and we have a test tomorrow. Please explain all this stuff and more related to it. if it is not good enough then I will delete it and you will not get the points.

PLEASE HELP!!!!!! 20+ POINTSI Have Not Been Paying Attention In Class At All For The Past 3 Weeks, And

Answers

Answer 1

Answer:

B. (x , y) -> (-y , x)

Step-by-step explanation:

counter clockwise rotation 90° : (x,y) -> (-y,x)


Related Questions

>

Jess was drawing a map of her neighborhood. What is the measure of the angle of the intersection between Derby

Drive and Rosemont?

>

Academy

(3x + 15°

Rosemont

ogle Play

1030

(x + 10)

Derby Drive

13

23

54

ENG 12:13 AM

INTL 2/3/2021

Answers

Answer:

23 degrees

Step-by-step explanation:

Find the diagram attached

The sum of angle on the straight line is 180°

103+3x+15+x+10 = 180

128+4x =180

4x = 180-128

4x = 52

x = 52/4

x = 13

The measure of the angle of the intersection between Derby Drive and Rosemont is x+10

= 13+10

= 23 degrees

Hence the measure of the angle is 23 degrees


Solve the system of linear equations by substitution.
y = -2x + 10
y = x +1

Answers

Step-by-step explanation:

y=14

y=1

thats the answer.

rewrite in a simpler equivalent form and solve

Answers

Given:

The equation is

[tex]\dfrac{3x}{7}+\dfrac{2}{7}=2[/tex]

To find:

The simpler equivalent form and solve the given equation.

Solution:

We have,

[tex]\dfrac{3x}{7}+\dfrac{2}{7}=2[/tex]

It can be written as

[tex]\dfrac{3x+2}{7}=2[/tex]

Multiply both sides by 7.

[tex]3x+2=14[/tex]

[tex]3x=14-2[/tex]

[tex]3x=12[/tex]

Divide both sides by 3.

[tex]x=\dfrac{12}{3}[/tex]

[tex]x=4[/tex]

Therefore, the simpler equivalent form of the given equation is [tex]3x+2=14[/tex] and the solution is x=4.

A 12 foot ladder is leaning against a house. The bottom of the ladder is 3 ft from
the house. How high does the top of the ladder reach? Round to the nearest
tenth.

Answers

Answer:

h = 11.61 foot

Step-by-step explanation:

Given that,

The length of a ladder, l = 12 foot

The bottom of the ladder is 3 ft from  the house.

We need to find how high does the top of the ladder reach. Let it is h. The length of the ladder will be the hypotenuse. 3 ft will be the base. So,

[tex]12^2=3^2+h^2\\\\h^2=144-9\\\\h=11.61\ \text{foot}[/tex]

So, the top of the ladder is at a height of [tex]11.61\ \text{foot}[/tex].

Determine the mean, median, mode, and range for the data set:
5, 6, 12, 7, 8, 10, 8
Mean-
Median-
Mode-
Range-

That’s the question

Answers

Answer:

Step-by-step explanation:

Mean (Average): 8

Median (Middle): 8

Mode (Most Common): 8

Range (Biggest - Smallest): 7

A scientist is performing a study on mosquitoes. She collects water with mosquito larvae and places it in an enclosed container in her lab. The scientist uses data from the study to create the function, M(t)=-3t^2+57t-144, where t is the number of days in the study.

Part A: Which equivalent form of M(t) reveals when the mosquitoes first appeared in the container and when there were no more mosquitoes in the container?

Part B: How long were there mosquitoes in the container?
Please show the work love yaa.

Answers

Answer:

M(t) = -3 (t - 16) (t - 3)

Step-by-step explanation: Assuming you are working on the practice book - section 5: quadratic equations and functions than this is the correct answer to your question. Although there is another question below the on you have asked on in the actual textbook so if you need help on that just ask me in the comments below.

What is -1/6 as a decimal? a) -16 b) - 6 c) - 6 d) -1.6​

Answers

Answer:

-0.16666666666666

Step-by-step explanation:

-.16

Answer:

0.1667

Step-by-step explanation:

4. simplify 32³/⁵. a. 2. b. 8. c. 16. d. 24​

Answers

Answer:

2^(5×3/5)=2³=8is your answer

Select the correct answer.
Which is the graph of the function }(r).= x3 – 3,2 – 417

Answers

where the answer choices ?

Please help I have 2 minutes!

Answers

Answer:

I think y= -3x+2 ? not sure

Step-by-step explanation:

Answer:

6 < 2+1= 3F

Step-by-step explanation:

First, we know that the x is going to the right

1 up, 2 down.

If you go down 6 and go back up 1 we will have the equation 6 < 2+1=3F

You can also use Desmos Graphing Chart to help you!

-6 = 1+3 < 4

Hope this helps!

Mark as Brainllest if it helped you!

hola please help i’ll give brainliest but please answer correctly

Answers

Answer:

Step-by-step explanation: 1) 14.5 bc

We have the equation:

43.5 ÷ 3 = 14.500

Calculated to 3 decimal places.

2) They are all the same because they are the same numbers but in different places.

i hope this helps! =3

Answer fast!!!!!!!!!

Answers

Answer:

208?

Step-by-step explanation:

Answer:

Decimal- 2.08

Mixed Number- 52/25

PLS I REALLY NEED HELP?

Answers

well you have to subtract. i think you have to do 15-10% which is 14.9

SOMEONE ON THIS PLANET PLEASE HELP

Answers

Answer:

38*

Step-by-step explanation:

Sandra is thinking of two numbers.
Her two numbers have a negative sum, but a positive product.
Give an example of what her numbers could be.
and

Answers

Answer:

-2, -3

Step-by-step explanation:

Any 2 negative numbers would work

When 2 negative numbers are multiplied together, the product is always a positive number

Example: -2,-3

(-2)+(-3)=-5

(-2)(-3)=6

The example of her numbers could be -2 and -3.

What is a word problem?

A word problem is a verbal description of a problem situation. It consists of few sentences describing a 'real-life' scenario where a problem needs to be solved by way of a mathematical calculation.

For the given situation,

Let the two numbers be x and y.

Two numbers have a negative sum, but a positive product.

So, the two numbers are -x and -y.

Let us consider the two numbers be -2 and -3

Sum of two numbers = [tex]-2+(-3)[/tex]

⇒ [tex]-5[/tex]

Product of two numbers = [tex](-2)(-3)[/tex]

⇒ [tex]6[/tex]

Thus the sum have a negative number and the product is a positive product.

Hence we can conclude that the example of her numbers could be -2 and -3.

Learn more about word problem here

https://brainly.com/question/9214190

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d: 11
A food company is designing boxes for several products. Each box is a rectangular prism.
15
The company makes a single serving cereal box that contains 1.2 ounces of cereal. They plan to make an extra large box for school
cafeterias. The extra large box will be a dilation of the single serving box using a scale factor of 4. How many ounces of cereal will
the extra large box contain?
I need step by step

Answers

dude it keeps saying incorrect when i put the answer bro it says it again

How many ounces of cereal will the extra large box contain is 76.8 ounces.

Number of ounces of cereal?

Using this formula

Number of ounces of cereal=Number of ounces×Scale factor

Let plug in the formula

Number of ounces of cereal=1.2×4×4×4

Number of ounces of cereal=1.2×64

Number of ounces of cereal=76.8 ounces

Therefore how many ounces of cereal will the extra large box contain is 76.8 ounces.

Learn more about number of ounces of cereal here:https://brainly.com/question/19263252

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Use the distributive property to find the value of x.

-1.2(3 – x) = -1.8

-3.6 + 1.2x = -1.8

1.2x = 1.8

X= ?

Answers

Answer:

1.5

Step-by-step explanation:

-1.2(3-×)=-1.8

-3.6+1.2×=-1.8

1.2×=3.6-1.8

1.2×=1.8

1.2/1.2×=1.8/1.2

×=1.5

100+100+43+12+-21+43=?

Answers

Answer:

277

Step-by-step explanation:

Hope this helped!! :)

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

Correct me if I'm wrong, thanks

A hibernating animal lost 5 pounds.
Write a signed number to represent this weight change.

Answers

Answer:

-2

Step-by-step explanation:

The sign would be negative because the pounds were lost not gained

If you need to make $678 and it costs $28 to make it and you are selling it for $40 each .. What is the minimum you have to sell

Answers

Complete question :

Mitch is making birdhouses to sell. He needs to make at least $678. Each birdhouse costs $28 to make. He is selling them for $40 each. What is the minimum he can sell to reach his goal?

Answer:

57

Step-by-step explanation:

you need to make $678 and it costs $28 to make it and you are selling it for $40 each .. What is the minimum you have to sell

Target profit = $678

Expenses per product = $28

Income per sale = $40

Profit per sale = $(40 - 28) = $12

Let number of sales or product = x

Hence,

$12 * x ≥ 678

12x ≥ 678

x ≥ 678 / 12

x ≥ 56.5

To the nearest whole number = 57

What is the equation of the line that passes through the point ( -1, 1) and is perpendicular to 2x + 4y = 16?
A. y = −2x − 1
B. y − 3 = 2x
C. y = 6x + 7
D. Cannot be determined

Answers

Answer:

B

Step-by-step explanation:

We want the equation of the line that passes through the point (-1, 1) and is perpendicular to:

[tex]2x +4y=16[/tex]

Remember that the slopes of perpendicular lines are negative reciprocals of each other.

So, let's find the slope of the original line first. We can do so by converting it to slope-intercept form. Thus:

[tex]4y=-2x+16[/tex]

Therefore:

[tex]\displaystyle y=-\frac{1}{2}x+4[/tex]

The slope is -1/2.

The negative reciprocal of -1/2 is 2.

Thus, the slope of our new line is 2.

The slope is 2 and it passes through the point (-1, 1).

We can use the point-slope form:

[tex]y-y_1=m(x-x_1)[/tex]

Substitute:

[tex]y-(1)=2(x-(-1))[/tex]

Distribute:

[tex]y-1=2x+2[/tex]

Subtracting 2 from both sides yields:

[tex]y-3=2x[/tex]

Therefore, our answer is B.

What is the chance you'll roll this FNC (fair # cube) and it will land on a number less than 5?
A. 4 in 6 chance
B. 3 in 6 chance
C. 1 in 6 chance
D. 5 in 6 chance

Answers

You’re answer is A because there are only 4 numbers below 5 so it’ll be 4/7

What is two thing you like about math

Answers

Answer:

1. Math encourages curiosity and questions.

2. Math can save you money. ...

please help i’m sorry!!! 15 points again!

Answers

Answer:

Guess I'll agree with the other person.

Step-by-step explanation:

n + 5 = n +7 Find a value of n that makes the equation true.

Answers

Answer:

This equation has no solution.

Step-by-step explanation:

n should equal some value that makes the statement true, and there is none. To prove this, solve for n and you'll get a nonsensical answer.

n + 5 = n + 7

n = n + 2

0 = 2 ?

Robert wants to try some new chocolate chip cookie recipes. His current recipe calls for three and a half cups of flour for every bag of chocolate chips. He wants to determine which recipes require more or less flour than his current recipe. Sort the items into the diagram below.

Answers

Please attach the diagram with your question

In ΔSTU, s = 3.8 inches, t = 9.8 inches and u=9.6 inches. Find the measure of ∠U to the nearest 10th of a degree.

Answers

Answer:

m∠U = 75.7°

Step-by-step explanation:

use Law of Cosines:

9.6² = 3.8² + 9.8² - 2(3.8)(9.8)·cos U

92.16 = 14.44 + 96.04 - 74.48·cos U

92.16 = 110.48 - 74.48·cosU

-18.32 = -74.48·cosU

cos U = -18.32/-74.48

cos U = 0.24597

arccos U = 75.7

Answer:

m∠U = 75.7°

Step-by-step explanation:

its on delta and if you use a calculator then its m∠U = 75.7°

–19w + 11 = –17w − 19
w=?

Answers

Answer:

W = 15. I hope this helped.

Step-by-step explanation:

Steps:

1.Add 19w to both sides.

11=−17w−19+19w

2.Simplify  -17w-19+19w to  2w-19

11=2w−19

3.Add 19 to both sides.

11+19=2w

4. Simplify  11+19  to  30.

30=2w

5.Divide both sides by 2.

30/2 = w

6.Simplify 30/2 to  15.

15=w

7.Switch sides.

w=15

Use the regression calculator to compare the teams’ number of runs with their number of wins.

A 2-column table with 9 rows. Column 1 is labeled R with entries 808, 768, 655, 684, 637, 619, 613, 609, 563. Column 2 is labeled W with entries 93, 94, 66, 81, 86, 75, 61, 69, 55.

What is the y-intercept of the trend line, to the nearest hundredth?

Answers

Answer:

-23.21

there should be a two part for this and the answer would be D y= 0.15x - 23.21

Step-by-step explanation:

The line of best will be y = 0.15x - 23.21  and the y-intercept is -23.21 after applying the formula.

What is the line of best fit?

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

[tex]\rm m = \dfrac{n\sum xy-\sum x \sum y}{n\sum x^2 - (\sum x)^2} \\\\\\\\\\rm c = \dfrac{\sum y -m \sum x}{n}[/tex]

The data is given:

R(x)     W(y)

808     93

768     94

655     66

684     81

637     86

619     75

613     61

609     69

563     55

The line of best fit can be written as:

y = mx + c

Here m is the slope of the line best fit and c is the y-intercept

Putting the values in the formula we get:

m = 0.15

c = -23.21

The line of best fit is:

y = 0.15x - 23.21

Thus, the line of best will be y = 0.15x - 23.21  and the y-intercept is -23.21 after applying the formula.

Learn more about the line of best fit here:

brainly.com/question/14279419

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Choose all the numbers that 135 is divisible by.

Answers

Answer:

1, 3, 5, 9, 15, 27, 45, 135.

Step-by-step explanation:

Answer:

The factors of 135 are 1, 3, 5, 9, 15, 27, 45, 135

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