easy 8th grade math please help

Easy 8th Grade Math Please Help

Answers

Answer 1

Answer:

25x<25x

Step-by-step explanation:

i think its that

Answer 2

Answer:

1 ≤ x

Step-by-step explanation:

20 + 5x [tex]\leq[/tex] 5(1 + 4x)

20+ 5x ≤  5 + 20x

      -5x           -5x

20 ≤ 5 + 15x

-5     -5

15 ≤ 15x

÷15   ÷15

1 ≤ x


Related Questions

what is elasticity?​

Answers

Answer:

the ability of an object or material to resume its normal shape after being stretched or compressed; stretchiness.

Step-by-step explanation:

Answer:

the ability of an object or material to resume its normal shape after being stretched or compressed

Help me.............

Answers

The next two numbers are -8 and 4 because each number is divided by 2

29.8 is 10 times as much as what ​

Answers

Answer:

298

Step-by-step explanation:

29.8 is 10 times as much as 298

The required proportion value is 2.98 which is equal to one-tenth of 29.8.

Given that,
To determine 29.8 is 10 times as much as a number.


What is arithmetic?

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Let the number be x,

According to the question.
29.8 = x10
x = 29.8 / 10x
x = 2.98

Thus, the required proportion value is 2.98 which is equal to one-tenth of 29.8.

Learn more about arithmetic here:

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Given the function f(x) = 4x evaluate

f(-2)

Answers

Answer:

the answer =-8

Step-by-step explanation:

you subsitute -2 for x so its 4(-2) which is -8

Answer:

Given value x=-2, just substitute it to [tex]4^{x}[/tex]

= [tex]4^{-2}[/tex]   (this uses the property [tex]a^{-m}=\frac{1}{a^{m} }[/tex])

= This results in:

[tex]\frac{1}{4^{2} } = \frac{1}{16 }[/tex]

Given x∥y and m∠2=23° .

What is m∠7?

Enter your answer in the box.

Answers

Answer:

angle2=23°

angle7=angle5

angle2=angle6

so,angle8=23°

total angle = 180°

angle7=180°-46°=134°÷2=67°

Using corresponding angles are equal property we found that m∠7 = 157°

What are corresponding angles?

When two parallel lines are intersected by an transversal line then the pair of angles formed on one same side of transversal on both parallel lines are corresponding angles. As in the figure attached ∠ 1 and ∠5 are  corresponding angles.∠4 and ∠8 are also corresponding angles.

Corresponding angles are always equal.

Given that x and y are parallel lines.

Then ∠2 and ∠6 are corresponding angles , therefore m ∠2 = m ∠6

Given that m∠2 = 23°

m∠6 = 23°

As ∠7 and ∠6 are on same line hence they are supplementary

m∠7  + m∠6 = 180°

⇒m∠7 + 23° =180°

m∠7  =180°- 23° = 157°

Therefore, the measure of angle ∠7 is 157°

Also, learn more about  angles from the link below:

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Draw the image of ABC under dilation whose center is P and scale factor is 4.

Answers

Answer:

By plotting points A', B' and C' we can get the dilated image A'B'C'.

Step-by-step explanation:

Let the point P is origin (0, 0), segment AB lies on the x-axis and segment PC on the y-axis,

Coordinates of A, B and C will be (1, 0), (2, 0) and (0, 2).

When triangle ABC is dilated by a scale factor 4 about the origin,

Rule for dilation;

(x, y) → (4x, 4y)

New coordinates of the points A, B and C will be,

A(1, 0) → A'(4, 0)

B(-2, 0) → B'(-8, 0)

C(0, 2) → C'(0, 8)

Answer:

Correct

Step-by-step explanation:

New coordinates of the points A, B and C will be,

A(1, 0) → A'(4, 0)

B(-2, 0) → B'(-8, 0)

C(0, 2) → C'(0, 8)

what is the answer when you simplify?.​

Answers

The answer when you simply is B. 4^2

Answer:

C

Step-by-step explanation:

Because when you multiply 4³ × 4^4 = 16384

And 4^9 = 262144

(divide) 16384/262144 = .0625

.0625 = [tex]\frac{1}{16}[/tex]

[tex]\frac{1}{4^2}[/tex] = [tex]\frac{1}{16}[/tex]

because 4 * 4 = 16

HOPE THIS HELPED!!!

i need help on this one plz and thanks :)

Answers

29 degrees
opposite angles - 97
97 + 54 = 151
180-151= 29

help
thanks!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The answer is A because that information they gave to you

Solve for the value of s.
(35+6)/(25-1)º

Answers

Answer:

615/360º

Step-by-step explanation:

Help me with this please

Answers

Answer:

a -30

b - 40

c - 40

d - 40

e - 110

f - 110

g - 30

h - 140

i - 70

j - 70

I believe all of these are right. Sorry if they are not. I hope this helps!

HELP!!! RIGHT NOW!! Please solve the problem as soon as possible!

Answers

Answer:

The domain is continuous and the weight y of x identical hardcover books

Step-by-step explanation:

Discrete means non continuous data. This is continuous and equal so the domain is continuous.

Also, precipitation each week can vary so that won't work. Eating carrots each day can also vary so that doesn't work. The cost of an item can vary almost every day! So that is not true.

Therefore it is the last one, because it is identical and all of the coordinates make (1,3).

Hope this helps! :)

what is the slope of the line that passes through the points (4,-2) and (24,-17)

Answers

Answer:

-3/4

Step-by-step explanation:

Use the formula y2-y1/x2-x1. When you plug in your x and y's, you should get -17+2/24-4. Simplify and you get -15/20, Simplify again and you get -3/4

tavon has a $50 gift card that loses $2 for each 30-day period it isnt used. he has a $40 card that loses $1.50 for each 30-day period day it is not used. write and solve an equation to determine the number of 30-day periods until the value of the gift cards will be equal. what will the value of each card be when they have equal value?

Answers

Answer:

bmbmvm mbxmvxkbxkhxkbxkhxkhxkhxkhxkbxkhxkgx୮୬୩୭୪୨୭୪୨୭୨୭୨୭୪୭୪

Answer:

Answer:

Let the  number of 30 day period be = p

Step-by-step explanation:

part b= So, there will be 20 30-day periods until the cards will be equal in value. The answer is $10

Which of the following statements BEST proves that ∠XWY ≌ ∠ZYW?

A.
If two parallel lines are cut by a transversal, then corresponding angles are congruent.

B.
If two parallel lines are cut by a transversal, then complementary angles are congruent.

C.
If two parallel lines are cut by a transversal, then alternate interior angles are congruent.

D.
If two parallel lines are cut by a transversal, then alternate exterior angles are congruent.

Answers

Answer: C

Step-by-step explanation:

The pair of angles created on the inner side of the parallel lines intersected by a transversal but on opposing sides of the transversal is known as an alternative interior angle. The correct option is C.

What are Alternate Interior angles?

When two parallel lines are intersected by a transversal, the pair of angles created on the inner side of the parallel lines but on opposing sides of the transversal is known as an alternative interior angle. These angles are always equal in measure.

The best statements BEST that proves ∠XWY ≌ ∠ZYW is that If two parallel lines are cut by a transversal, then alternate interior angles are congruent.

Hence, the correct option is C.

The complete question is mentioned in the image below.

Learn more about Alternate Interior Angles here:

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The predicted calories in food items based on grams of fat are represented by the residual plot.
What does the pattern in the residual plot indicate about the type of model?
A. The pattern is random, indicating a good fit for a nonlinear model.
B. The pattern shows the points are far from the zero line, indicating a good fit for a linear model.
C. The pattern is random, indicating a good fit for a linear model.
D. The pattern shows the points are far from the zero line, indicating a good fit for a nonlinear model.
E. The pattern is random, indicating that the model is unable to be determined.

Answers

Answer:

The correct option is;

C. The pattern is random, indicating a good fit for a linear model

Step-by-step explanation:

A graph that has the residuals (the difference between the value observed and the value expected (regression analysis) on the vertical axis and the variable that is not affected by the other variables (independent variable) on the x or horizontal axis is known as a residual plot

A linear regression model is suited in a situation where the points are dispersed randomly on both sides of the horizontal axis

Therefore, given that the first point is below the horizontal axis and the next point is above the horizontal axis, while the third and the fourth points are below the horizontal axis, the fifth, sixth, and seventh points are above the horizontal axis and the eighth point is below the horizontal axis, the points are random around the horizontal axis, indicating the suitability of a linear regression model.

Answer:

C. The pattern is random, indicating a good fit for a linear model.

Step-by-step explanation:

Took the test. It's 100% correct.

find the next two numbers in the pattern -2,20,-200,2000

Answers

-200,-2,20,2000 in order hope this helps you

how do you write y-2=-1/3(x-7)

Answers

Answer:

y= -1/3 + 13/3

Step-by-step explanation:

y-2=-1/3(x-7)

Use the distributive property to simplify the right side of the equation

y-2=(-1/3 * x) + (-1/3 * -7)

y-2=-1/3x + 7/3

Add 2 to both sides get the y by itself. 2 can be expressed as 6/3

(y-2) + 2=(-1/3x + 7/3) + 6/3

y= -1/3x + 13/3

If c+d=40 and 10 ≤ c ≤ 30, all of the following are possible values of d EXCEPT,
A. 7
B. 14
C. 21
D. 28

Answers

Answer:

A. 7

Step-by-step explanation:

If you were to solve for c by using d as 7 you would get:

c+7=40

c would then equal 33, which is greater than 30

tell me some irrational numbers​

Answers

Answer:

square root of 2, pi, square root of 5, square root of 10, square root of 3, square root of 15

Step-by-step explanation:

Answer:

√8 √1.6 -√11 π √2/5

Step-by-step explanation:

Help! What is 3.50 +4.50

Answers

Answer:

8

Step-by-step explanation:

The answer is 8.00 hope this helps

Please help me. WILL GIVE BRAINLIEST

Answers

Answer:

d

Step-by-step explanation:

Answer:

third option

Step-by-step explanation:

Given that x = - 2 + [tex]\sqrt{8}[/tex] is a root

Complex roots always occur as conjugate pairs , thus

x = - 2 + [tex]\sqrt{8}[/tex] is a root then x = - 2 - [tex]\sqrt{8}[/tex] is a root

The required factor is then

(x - (- 2 - [tex]\sqrt{8}[/tex] ) )

What is the equation of the line?
Explain.​

Answers

Answer:

y = -2/1x-2

Step-by-step explanation:

If each unit happens to be 1 then this will be correct, but it is hard to determine the equation without units.

Which values are in the solution set of the compound inequality –8 < 3x + 7 ≤ 10? Select three options.

O –15
O –5
O –3
O 0
O 1

Answers

Answer: 1&-5

Step-by-step explanation:

Share 96 sheep in the ratio 7:1:4

Answers

Answer:

56:8:48

Step-by-step explanation:

1] add th eratio numbers together

7+1+4=12

2} write the ratio as fractions

7/12  1/12  4/12

3] use the formula (ration number/total number * number of sheeps)

a] 7/12 * 96 = 56

b] 1/12 * 96 = 8

c] 4/12 * 96 = 48

3] write your answer as a ration

7 : 1 : 4 = 56 : 8 : 48

Answer:

The answer is 56 : 8 : 32

Step-by-step explanation:

7 + 1 + 4 = 12

7/12 x 96 = 56

1/2 x 96 = 8

4/12 x 96 = 32

Order the expressions from least to greatest.
22 x 5
111
82 – 60

Answers

Answer:

82 - 60, 22 × 5, 111

Step-by-step explanation:

Solve the expressions:

22 × 5 = 110111 = 11182 - 60 = 22

Order the expressions from least to greatest:

The third expression has the least value, so it is firstThe first expression has the next greatest value, so it is secondThe middle expression has the greatest value, so it is last

Write out the expressions from least to greatest:

82 - 60, 22 × 5, 111

Which of the following statements are true about the polynomial?
7x^3y+10x^2y^3+13xy^2+14
A.The degree is 4.
B.This expression is called a trinomial.
C.The leading coefficient is 10.
D.The constant term is 7x3y.

Answers

Answer:

b

Step-by-step explanation:

The perimeter of a rectangle is 90 centimeters. The length is 27 centimeters. What is the width of the rectangle?

Answers

Perimeter is 2 x length + 2 x width
We can write that as...
P=2L+2W
We also know the length and perimeter so we substitute and solve like this
90=2 x 27 + 2W
90=54+2W
90-54=54-54+2W (property of subtraction equality)
36=2W
Divide by 2 (property of division equality)
W=18

Thus, the width of the rectangle is 18 cm

what is the value of 10-¹​

Answers

Answer:

100.

Step-by-step explanation:

it may be 100. im not sure though

Answer:

[tex]\frac{1}{10}[/tex]

Step-by-step explanation:

[tex]10^{-1}[/tex] = [tex]\frac{1}{10^{1} }[/tex]= [tex]\frac{1}{10}[/tex]

alguien que me ayude por favor

Answers

i can't see the paper

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