Mathmatics 8th grade

Mathmatics 8th Grade

Answers

Answer 1

Answer:

f or 2 meters is the correct answer

Step-by-step explanation:

Answer 2

Answer:

2.8

Step-by-step explanation:

2.8*2.8=7.84. 2.8 is the closest to the length of one side of the square.


Related Questions

If g(x) = (24 – x)2 + 7, what is
the value of g(6)?
O 250
O-2
O 243
O 331

Answers

[tex]g(x) = (24 - x)2 + 7\\= 48 - 2x + 7\\g(6) = 48 - 2 \cdot 6 + 7\\= 48 - 12 + 7\\= 43[/tex]

The numbers 987654321 are written out in a row. Place between them exactly 2 minus signs so that the value of the expression obtained is the minimum.

Answers

Answer:

Step-by-step explanation:

45

Answer:

12

Step-by-step explanation:

It is assumed the order of the numbers doesn't change.

987 - 654 - 321 =333 - 321 =12

What is the factored form of x3+ 64?

Answers

Answer:

the answer is  (x – 4)(x2 + 4x + 16).

Answer:

Step-by-step explanation:

Write an equation of the line passing through the point (5, 1) that is perpendicular to the line 5x+3y=15.

Answers

Answer:

y = [tex]\frac{3}{5}[/tex] x - 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

5x + 3y = 15 ( subtract 5x from both sides )

3y = - 5x + 15 ( divide all terms by 3 )

y = - [tex]\frac{5}{3}[/tex] x + 5 ← in slope- intercept form

with slope m = - [tex]\frac{5}{3}[/tex]

Given a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-\frac{5}{3} }[/tex] = [tex]\frac{3}{5}[/tex] , thus

y = [tex]\frac{3}{5}[/tex] x + c ← is the partial equation

To find c substitute (5, 1) into the partial equation

1 = 3 + c ⇒ c = 1 - 3 = - 2

y = [tex]\frac{3}{5}[/tex] x - 2 ← equation of perpendicular line

Here, we are required to Write an equation of the line passing through the point (5, 1) that is perpendicular to the line 5x+3y=15.

The equation of the line is; 3x - 5y = 10.

By comparison with the equation of a straight line: y = Mx + c

The equation 5x+3y=15 can be rewritten as ;

y = (-5/3)x + 5

Therefore, the slope of the equation is; (-5/3)

The product of the slope of two perpendicular lines is: -1.

therefore m1m2 = -1

Therefore; M2 = -1/(-5/3)

Therefore M2 = 3/5

The equation of the line passing through the point (5, 1) that has slope, M2 = 3/5 is;

3/5 = (y - 1)/(x - 5)

By Cross product;

3x - 15 = 5y -5

Therefore, the equation of the line is;

3x - 5y = 10.

Read more:

https://brainly.com/question/17076690

Which linear equation below represents the line that goes through the point (3.4) and has a slope of 2?

Answers

Answer:

Linear equation with a slope of 2 that goes through the point (3, 4) is [tex]y = 2\cdot x -2[/tex].

Step-by-step explanation:

From statement we know the slope of the line and a point contained in it. Using the slope-point equation of the line is the quickest approach to determine the appropriate equation, whose expression is:

[tex]y-y_{o} = m \cdot (x-x_{o})[/tex]

Where:

[tex]m[/tex] - Slope, dimensionless.

[tex]x_{o}[/tex], [tex]y_{o}[/tex] - Components of given point, dimensionless.

[tex]x[/tex], [tex]y[/tex] - Independent and dependent variable, dimensionless.

If we know that [tex]m = 2[/tex], [tex]x_{o} = 3[/tex] and [tex]y_{o} = 4[/tex], the linear equation is found after algebraic handling:

1) [tex]y-4 = 2\cdot (x-3)[/tex] Given

2) [tex]y = 2\cdot (x-3) +4[/tex] Compatibility with Addition/Existence of Additive Inverse/Modulative Property

3) [tex]y = 2\cdot x -2[/tex] Distributive Property/[tex](-a)\cdot b = -a\cdot b[/tex]/Definition of sum/Result

Linear equation with a slope of 2 that goes through the point (3, 4) is [tex]y = 2\cdot x -2[/tex].

6) A tree casts a shadow 60 feet long. At the same time, a nearby 8-foot post casts a 12- foot shadow. How tall is the tree?​

Answers

Answer:

  40 ft

Step-by-step explanation:

The tree's shadow is 60/12 = 5 times the length of the shadow of the post. So, we figure the tree is 5 times the height of the post:

  5(8 ft) = 40 ft . . . height of tree

__

You may want to write a proportion:

  tree height/tree shadow = post height/post shadow

  t / 60 = 8 / 12

  t = 60(8/12) = 40 . . . . multiply by 60

i need help badly plzzzzz

Answers

Answer:

Sorry but this is not mathematics, if you put it in computer and technology, your question may be answered

Sorry but I can't help.

Answer:

option 1 is the correct answer

Step-by-step explanation:

since 12 is less than 20. then we will deduct -1 from y; which is 0

what is the range of the function below in set builder notation? y=|x-3|

Answers

Answer:  [tex]\{y | \ y \in \mathbb{R}, \ y \ge 0\}[/tex]

This translates to "y is any real number such that it is 0 or larger".

The reasoning is that the result of any absolute value function is either 0 or positive. In other words, we'll never get a negative result of an absolute value function. This is due to how absolute value represents distance. Negative distance does not make sense.

So if y = |x-3| then y = 0 is the smallest output possible. We could have any positive output we want.

In terms of a graph (see below), the V shape is at the lowest point (3,0). The y coordinate is all we care about in terms of finding the range. So we see the lowest y value is y = 0.

At what points do the the graphs of y = 2x+1 and y= -(x-1)^2+3 intersect?
O A. (-2, -6) and (2, 2)
O B. (-1, -1) and (1,3)
O C. (-3,5) and (2, 2)
O D. (1, 3) and (3,7)

Answers

The answer would be B. (-1,-1) and (1,3)

Hope that helped

John is gliding along on his scooter at a speed of 2.8 m/s when
suddenly he collides with Sam who is walking around the corner. If
John is brought to rest in 0.15 s, what is his acceleration?

Answers

Answer:

18.67 m/s²

Step-by-step explanation:

a = ∆v/ t

a= v - u/t

a = 2.8 - 0 / 0.15

a = 2.8 / 0.15

a = 18.67 m/s²

Just need answer, that fills in the blanks, i dont need work shown ty
will give brainly!!

Answers

The answer is 60 degrees


HELP!!!!
It was saying that my question is to short so I am just writing this to make it longer! and Thank you to the person who answers my question I do appreciate you taking time out of your day to help me!

Answers

What’s there question??

First Question: G=?

Second Question: H=?

Third Question: I=?

Answers

Answer:

92°100°114°

Step-by-step explanation:

Refer to attached

Added parallel lines in red to help:

g = 360° - (144°+124°) = 92°h = 360° - (162° + 98°) = 100°i = 360° - (117° + 129°) = 114°

WILL MARK BRAINLIST PLSS HELP

Answers

1.)A   2.)B.  3.)C.  4.)C.   5.)B

I think the only one i might of gotten wrong is 4. if any are wrong. please let me know for future reference.

~ItsOniiSama ❤

Hope this helps! If so please ,mark brainliest!

Answer:

1. A

2. A

3. C

4. C

5. B

Step-by-step explanation:

i do beleive these are the correct answers

find the first five terms of each sequence an = -2(n-7)

Answers

Answer:

when n=1

= -2(1-7) = 12

when n=2

= -2(2-7) = 10

when n=3

= -2(3-7) = 8

when n=4

= -2(4-7) = 6

when n=5

= -2(5-7) = 4

Step-by-step explanation:

A line segment is a geometric figure that consists of what?

Answers

An infinite number of individual points placed side by side .

In 2014, a toy store sold 12,823 stuffed animals. In 2015, the toy store sold 24,290 more stuffed animals than it did in 2014. The toy store sold the same number of stuffed animals in 2016 as it did in 2015. How many stuffed animals did the toy store sell in 2014, 2015, and 2016 combined?

Answers

Answer:

i say 24,890

Step-by-step explanation:

The number of stuffed animals did the toy store sell in 2014, 2015, and 2016 combined is 87,049.

Given that, in 2014, a toy store sold 12,823 stuffed animals. In 2015, the toy store sold 24,290 more stuffed animals than it did in 2014.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Let the number of stuffed animals did the toy store sell in 2014, 2015, and 2016 combined be x.

Number of toys sold in 2014 = 12,823

Number of toys sold in 2015 = 12,823 + 24,290

=37,113

The toy store sold the same number of stuffed animals in 2016 as it did in 2015. That is, 37,113.

Now, x = Number of toys sold in 2014 + Number of toys sold in 2015 + Number of toys sold in 2016

=12,823+37,113+37,113

=87,049

Therefore, the number of stuffed animals did the toy store sell in 2014, 2015, and 2016 combined is 87,049.

To learn more about an equation visit:

brainly.com/question/14686792.

#SPJ5

The intersection of two streets forms a parallelogram. One street is 40 feet wide. The height of the parallelogram formed is 25 ft. What is the area of the intersection?

Answers

Answer:

1000 feet²

Step-by-step explanation:

Given that,

Width of a parallelogram is 40 feet

Height of the parallelogram is 25 feet

We need to find the area of the intersection that forms a parallelogram. The formula for the area of a parallelogram is given by :

A = base × height

A = 40 × 25

A = 1000 feet²

So, the area of the parallelogram is 1000 feet²

Divide. 32 by 565 Enter your answer in the boxes as a mixed number in simplest form.​

Answers

Answer:

17 21/32

Step-by-step explanation:

6. Edward bought 23.4 pounds of potatoes and 26.1 pounds of carrots.
How many pounds of vegetables did he buy in all? *
O 49.5 pounds
O 50 pounds
O 50.5 pounds
O 63.3 pounds

Answers

Answer:

49.5 lbs.

Step-by-step explanation:

23.4 + 26.1 equals 49.5 pounds

Hopefully this helps you  :)

pls mark brainlest ;)

13. To enter the play area, children must be more than 4 feet tall.

Answers

Answer:

Is this full qn ?. I don't think sooo.

Expressions that simplify to the same expression are called _ _ _ _ _ _ _ _ _ _.

Answers

Answer:

Step-by-step explanation: Expressions that simplify to the same equations are called Linear equations.It can simplify the same equation.

Step-by-step explanation:

please solve 6 number​

Answers

Answer:

5

Step-by-step explanation:

The mean is calculated as

mean = [tex]\frac{sum}{count}[/tex]

Here sum = 75, mean = 15 and let n be count, thus

[tex]\frac{75}{n}[/tex] = 15 ( multiply both sides by n )

75 = 15n ( divide both sides by 15 )

5 = n ← number of terms

Answer:

The answer to 6 is 5

Step-by-step explanation:

Evaluate the expression when a = 3, b = 2, and c= -3: (a³ + 2bc)/( c² -5)

Answers

((3*3*3)+2(-6))/((-3*-3)-5)
(27-12)/9-5
15/4

In an AP with 18 terms the common difference is $-3$−3 . If the nth term is $-5$−5, what is its first term?

Answers

Answer:

46

Step-by-step explanation:

The n th term of an AP  is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here d = - 3 and [tex]a_{18}[/tex] = - 5 , thus

a₁ + (17 × - 3) = - 5

a₁ - 51 = - 5 ( add 51 to both sides )

a₁ = 46

Answer:

a = 46

Step-by-step explanation:

Refer to the attachment.

Find the distance between (8, -4.7) and (8, 5.3)

Answers

Answer:

d = 10

Step-by-step explanation:

[tex]d= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\d= \sqrt{(8-8)^2+(5.3-(-4.7))^2} \\d= \sqrt{(0)^2+(10)^2} \\d= \sqrt{0+100} \\d= \sqrt{100}\\ d= 10[/tex]

What is
Two million, one hundred fifty-six thousand, four

Answers

Answer:2,156,004

Step-by-step explanation:

Answer: 2,156,000.00

Step-by-step explanation:

Is the following sometimes, always, or never true? If two lines intersect to form congruent adjacent angles, then the lines are perpendicular.

Answers

Answer:

sometime

Step-by-step explanation:

d. -6.24, -4.03, -1.82, 0.39, ... Find the 20th term.

Answers

Answer:

the 20th term of the sequence is 35.75

15 Points, PLEASE HELP! What expression is equivalent to 8.4x - 7.2y?
1.2(6x + 7y)
1.2(6x - 7y)
1.2(7x + 6y)
1.2(7x - 6y)

Answers

1.2(7x - 6y) is equivalent to 8.4x- 7.2y

Answer: 1.2(7x - 6y) is equivalent to 8.4x- 7.2y

Step-by-step explanation:

I took the test

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