Mathematics Middle School

pls answer soon it's a study guide ​

Pls Answer Soon It's A Study Guide

Answers

Answer 1

Answer:

Step-by-step explanation:

Related Questions

I NEED HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Amsterdam is the same distance from see level as Drachten

Step-by-step explanation:

both 2 units AWAY, although one is negative they are the same amount away from zero

for example, |2| = |-2|

whats the constant of the function?

Answers

Answer:

-4

Step-by-step explanation:

In mathematics, a constant function is a function whose value is the same for every input value. For example, the function is a constant function because the value of is 4 regardless of the input value. The answer is -4

Melanie had 4 2/3 pounds of chopped walnuts. She used 1 1/4 pounds in a recipe. How many pounds of chopped walnuts did she have left?

Answers

Answer:

Step-by-step explanation:

To make the denominator the same on both sides you need to multiply 1/4 by three and make it 3/12 and multiply 2/3 by four to get 8/12 and then you just subtract to get 3 5/12

Answer: 3 5/12

Step-by-step explanation:

Which expression is equal to 420−−√−345−−√?




115√

−115√

5√

−5√

Answers

Answer:

[tex]-\sqrt{5}[/tex]

I hope that this helps anyone in the future! I took the test and got a good grade thanks to the anwser above

you and your friend are walking through town. there is a building making a 90 degree angle with the ground and you are standing 40ft away looking up and a 30 degree angle. how tall is the building?

Answers

Answer:

tan 30 = height of building / 40

height = 40 × 1/√3=40/√3

or = 23.1 feet

Which are the roots of the quadratic function f(q) = 02 - 125? Select two options.
O q = 5/5
O q = -5/5
q=3/5
q = -3/5
q=25/5

Answers

It’s is the first and second one

Please help me with this question I will mark you as the best answer if correct

Answers

Answer:

Line : y = ax + b, passes (0, 3) and (2, -3)

=> b = 3

=> 2a + b = -3

=> a = -6/2 = -3

=> Slope a = -3

=> Option D is correct

Hope this helps!

:)

Answer:

D is the answer

Step-by-step explanation:

Slope = rise / run

Slope = y2-y1 / x2-x1

Where coordinates are

(0,3),(2,-3)

So x1=0,y1=3 , x2=2 , y2= -3

Slope= -3-3/ 2-0

Slope = -6/2

Slope = -3

How do you define the radian measure of an angle?

Answers

Answer:

it is the ratio of the length of the arc the angle forms÷the radius of the circle

Can someone help me find the evaluation for #20 I need to show my work

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(96*4)/8 which is 48

Answer for brainliest!

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Answer:

i think it's C

Step-by-step explanation:

Answer:

I think the answer is b but thats wat i think

What is 3/4 + 1/3 ?
* 15p*

Answers

3/4= .75
1/3= .33
.75+ .33= 1.08
in decimal form it is 1.0833 and in fraction form it’s around 1 1/13

Factor the polynomial.

125x^3+27

Answers

Answer: (5x+3) (25x^2-15x+9)

(5x + 3) (25x^2-15x + 9)

what is the value of x?

Answers

Answer:

you need a d/protector to do this

Step-by-step explanation:

Mr. Smith plans to build a 3-foot-wide walkway

around the outside of the cabin, as shown in the floor

plan. What will be the area, in square feet, of the top

surface of the walkway?

A. 171

B. 324

360

396

720

Answers

Answer:

360

Step-by-step explanation:

The area of the top surface of rectangular cabin walkway is given by the equation A = 360 feet²

What is the Area of a Rectangle?

The area of the rectangle is given by the product of the length of the rectangle and the width of the rectangle

Area of Rectangle = Length x Width

Given data ,

Let the area of the rectangular cabin be represented as A

Now , the initial length of the cabin = 30 feet

The initial width of the cabin = 24 feet

And , Mr. Smith plans to build a 3-foot-wide walkway around the outside of the cabin

So , the increased length of the rectangular cabin = 30 + 6 = 36 feet

The increased width of the rectangular cabin = 24 + 6 = 30 feet

Now , Area of Rectangle = Length x Width

Substituting the values in the equation , we get

Area of rectangular cabin A = 36 x 30

Area of rectangular cabin A = 1080 feet²

Now , the area of the cabin before increment of sides = 24 x 30

The area of the cabin before increment of sides = 720 feet²

So , the area of the walkway = 1080 - 720 = 360 feet²

Area of rectangular cabin walkway A = 360 feet²

Hence , the area of the rectangular cabin walkway is 360 feet²

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y=|x| (What is the range of this function?)

Answers

Answer:

Any number both positive or negative.

y = {all numbers}

Step-by-step explanation:

Answer:Any number both positive or negative.

Step-by-step explanation:y=(all numbers)

Miguel worked 5 days last week. If he worked 7.2 hours on average each day, how many hours did he work for the week?

Answers

Multiply the hours per day by the number of days.

7.2*5=36 hours total

Students are voting on the color of T-shirts to wear on their field trip. There are 160 students-65 boys and 95 girls-going on the
field trip. A random sample of students is chosen. Surveying the random sample produced a representative sample of the
population. Which was most likely true of the representative sample?
VA
The representative sample contained all 160 students,
The representative sample contained more boys than girls.
The representative sample contained more girls than boys.
The representative sample contained an equal number of boys and girls,
Save and Exit
Next
Submit
Mark this and retum

Answers

Answer:

The representative sample contained more girls than boys.

Step-by-step explanation:

A "sample" of something is a small part of it. A "representative sample" is a small part of the students that represents them all. A random sample would not include all 160 students. It is more likely that there would be more girls than boys, than more boys than girls. In total, there are more girls than boys: 95 girls to 65 boys. It is more likely that a sample of the total students would be just like the total, but smaller.

(10,17),(7,8) slope?

Answers

Answer:

1/3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

[tex]Slope=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{8-17}{7-10}\\\\=\frac{-9}{-3}\\\\=3[/tex]

Finding a Linear Regression Model
Warm-Up
Find a linear function that models the data in the table
2
y
f(x) =
-4
-6
-1
-1
0
1
2
4
3
7

Answers

Answer:

f(x) = 1.8x + 1

Step-by-step explanation:

I graphed the table on the graph below and found the equation of the line.

If this answer is correct, please make me Brainliest!

Sabrina has a rug with a perimeter of 18 feet. She decides to place a border around the rug so that the new length of the rug is 8 feet and the width is 4 feet. The border is the same width all the way around. A rectangle has a length of 8 feet and width of 4 feet. The equation which represents x, the width of the border is 2 (8 minus 2 x) + 2 (4 minus 2 x) = 18. What is the width of the border? Three-fourths ft 1 and one-half ft 1 ft 3 ft

Answers

Answer:

3/4 ft.

Step-by-step explanation:

2(8-2x)+2(4-2x)=18

16-4x+8-4x=18

-8x=18-24

-8x=-6

x=-6/-8

x= 3/4

The width of the border is 3/4.

What is perimeter of rectangle?

The perimeter of rectangle is, P= 2(l + b).

Given:

length= 8 feet, width = 4 feet

2(8-2x)+2(4-2x)=18

16-4x+8-4x=18

-8x=18-24

-8x=-6

x=-6/-8

x= 3/4

Hence, the width of the border is 3/4.

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What type of function best models the data in this table? Justify your reasoning.

x 2 5 8 11 14 17
y 16 25 34 43 52 61

Answers

Answer:

The function that models the data in this table would be a linear function.

Step-by-step explanation:

161-52=9

7-14=3

9/3=3

52-43=9

14-11=3

9/3=3

30 POINTS

For the graph below, which of the following is a possible function for h?

h(x) = 8x


h(x) = 5x


h(x) = 9x


h(x) = x21

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Answer:

5x

Step-by-step explanation:

Which number in the set {6, 12, 18, 36} satisfies the equation 3x-9=27?

Answers

Answer:

12

Step-by-step explanation:

3x-9=27

3x=36

x=12

will give brainlist if its right!

Answers

Answer:

7/30

Step-by-step explanation:

or 7 out of thirty.

plz correct me if im wrong, ill fix it

Answer:

7/30

Step-by-step explanation:

First you need to add up all the frequency so you know the total number that they has spun which is 30. So you put the total frequency that number 4 has on. Which is  7/30

Help with this please. Im giving 20 points
Three ballet dancers are positioned on stage. Mia is straight behind Jane and
directly left of Christine. If Jane and Mia are 3 meters apart, and Christine and Jane
are 5 meters apart, what is the distance between Mia and Christine?

Answers

Answer:

4

Step-by-step explanation:

Find the measure of the given arc in Circle C.

Answers

Answer:

AE=90°

AED=140°

DBA=220°

NEED HELP it’s a mastery grade!!

Answers

Answer:

2.49

Step-by-step explanation:

Answer:

2.49

Step-by-step explanation:

first u do 13.96 divde by five then to check it do 2.49 x 5

Mental Math
Solve
119*121

Answers

Answer:

14399

Step-by-step explanation:

break it down yall

119=100+19

121=100+21

100*100=1000

19*21=4399

add em up

Answer:

14,399

Explanation:

Set it up in a table and multiple.

I hope this helps you!

Please help! Its one of my last! Please include steps as well since i have to show work. I will give brainliest.

Answers

Answer:

600 sq mm

Step-by-step explanation:

I divided the shape into 2 shapes and found each shapes area and after that added both of its area to find the area of the above shape

area of rectangle= b x h

so, 15x30=450mm (square)

area of triangle= b x h (divided) 2

so, 10x30=300 (divided) by 2

= 150mm (square)

so, 450 (plus) 150= 600mm (square)

Choose all of the terms that can be used for x in a function.

Answers

Answer:

Eg.y=3x

Step-by-step explanation:

Answer:

Eg.y=3x

Step-by-step explanation:

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When it produces and sells 12,500 units, its average costs per unit are as follows: Average Cost per Unit Direct materials $ 7.20 Direct labor $ 4.20 Variable manufacturing overhead $ 1.70 Fixed manufacturing overhead $ 5.20 Fixed selling expense $ 3.70 Fixed administrative expense $ 2.70 Sales commissions $ 1.20 Variable administrative expense $ 0.70 Required: 1. Assume the cost object is units of production: a. What is the total direct manufacturing cost incurred to make 12,500 units? b. What is the total indirect ma Solve8 - (2x - 9) = 17-24