Can someone please help me with Systems of Equation. If so please comment here and friend me at fmilluzionz#1521. I am in 8th grade math

Answers

Answer 1

Answer:

The FitnessGram PACER Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The test is used to measure a student's aerobic capacity as part of the FitnessGram assessment. Students run back and forth as many times as they can, each lap signaled by a beep sound.

Step-by-step explanation:


Related Questions

A square has an area of 148.84m2.
Work out the perimeter of the square

Answers

Answer:

48.8m

Step-by-step explanation:

Formula for square area = [tex]a^{2}[/tex] = 148.84 [tex]m^{2}[/tex]

=> a = [tex]\sqrt{148.84}[/tex] = 12.2

Formula for square perimeter = 4a = 4 x 12.2 = 48.8 m

The perimeter of the given square is 48.8 m.

What is perimeter of a square?

The perimeter of any closed geometrical object is defined as the distance around that object. The perimeter of a square is the distance covered by its four sides.  Perimeter surrounds or outlines the shape in a two-dimensional plane.

Since all the sides of a square are equal, therefore, the perimeter of square will be 4 times its side, i.e. 4 × Side. It is measured in units, such as m, cm, in, ft, etc.

According to question,

Given area of a square = 148.84 m²

We all know that,

Area of a square = (Side)²

⇒ (Side)² = 148.84 m²

⇒ Side = √(148.84 m²)

⇒ Side = 12.2 m

Therefore, perimeter of the given square = 4 × Side

                                                                     = 4 × 12.2

                                                                     = 48.8 m

Hence the perimeter of a square = 48.8

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PLEASE I NEED HELP
If f(x) = x/2 -3 and g(x) = 4x2+ x - 4, find (f+g)(x). A. 4x2 + 3/2x-7 B. 4x2 + 1/2x - 1 C. 6x2 - 7 D. 4x2 + 3/2x -1​

Answers

Answer:

A.

[tex]4x {}^{2} + \frac{3}{2} x - 7[/tex]

Step-by-step explanation:

Add theses functions

[tex] \frac{x}{2} - 3 + 4 {x}^{2} + x - 4 \\ 4 {x}^{2} + \frac{3}{2} x - 7[/tex]

What is 442 divided by 13

Answers

442 divide 13 = 34!!!!!!!!

4.
What would be the purchase price for a $5,000, 91-day T-bill paying 3%
interest?
a. $4,925.00
b. $4,962.50
C. $5,000.00
d. $5,037.50​

Answers

Answer:

B

Step-by-step explanation:

     A = P(1+i/n)^t

   5000 = P(1+0.03/(361.3/91)^1                 361.3   ???  it worked

          P = 5000/1.007556048

          P = $4962.50309  

    the 91 day T-bill confused by financial calculator  which got   $4962.78 for a quarterly compound interest rate

Pedro throws a ball upward at a rate of 20 meters per
second from an initial height of 2 meters. The height
of the ball above the ground can be approximated by
h = -512 + 20t + 2, where t represents the amount of time,
in seconds, since the ball has been released.
What is the maximum height that the ball reaches?

Answers

Answer:

The maximum height that the ball reaches is of 3.96 meters.

Step-by-step explanation:

Vertex of a quadratic function:

Suppose we have a quadratic function in the following format:

[tex]f(x) = ax^{2} + bx + c[/tex]

It's vertex is the point [tex](x_{v}, y_{v})[/tex]

In which

[tex]x_{v} = -\frac{b}{2a}[/tex]

[tex]y_{v} = -\frac{\Delta}{4a}[/tex]

Where

[tex]\Delta = b^2-4ac[/tex]

If a<0, the vertex is a maximum point, that is, the maximum value happens at [tex]x_{v}[/tex], and it's value is [tex]y_{v}[/tex].

In this question:

The height after t seconds is given by:

[tex]h(t) = -51t^2 + 20t + 2[/tex]

Which is a quadratic equation with [tex]a = -51, b = 20, c = 2[/tex]

What is the maximum height that the ball reaches?

This is [tex]h_v[/tex].

[tex]\Delta = b^2-4ac = 20^2 - 4(-51)(2) = 808[/tex]

[tex]y_{v} = -\frac{\Delta}{4a} = -\frac{808}{4(-51)} = 3.96[/tex]

The maximum height that the ball reaches is of 3.96 meters.

Which quadrilaterals always have two pairs of congruent angles?

Answers

Answer:

A kite is a quadrilateral with exactly two pairs of adjacent congruent sides

Step-by-step explanation:

yw!!

if you actually know plz give an explanation to the answer so i know you aren't just answering for points, please help this is due before 12:00

Answers

Answer:

A.

Step-by-step explanation:

it is the only one that makes sense, because it deals with 8th graders, all others include gender which i do not think that matters.

Mark and Doug work at the mall. Last week,
Mark worked five less than three times the
number of hours that Doug worked. If their total
number of combined hours was 13 more hours
than Mark worked, how many hours did they
work in total?

Answers

If Mark and Doug work at the mall and their total number of combined hours was 13 more hours than Mark worked, The number of hours they work in total is 47 hours.

How to find the hours worked?

Let x represent the time Doug  worked

let 3x - 5 represent the number of hours Mark worked

Hence,

x + 3x - 5 = 3x -5 +13

4x-5=3x-5+13

4x-5=3x+8

Add 5 to both side

4x-5+5 =3x+8+5

simplify

4x =3x +13

subtract 3x from both side

4x -3x = 3x + 13 =3x

1x = 13

x =13/1

x =13 (Doug)

Hence,

3x -5 where x = 13

3 (13) -5

= 39 -5

= 34 hours (Mark)

Total hours

(Doug + Mark)

= 13 hours + 34 hours

= 47 hours

Therefore the total hours is 47 hours.

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Is the first one correct and what are the ages? Thanks

Answers

Answer:

a = 30°

Step-by-step explanation:

We need to find the value of a.

We know that, a straight line makes an angle of 180°.

In this case,

a+3a+2a = 180

6a = 180

a = 30°

So, the value of a is equal to 30°.

A store sells shirts.
• The store has 72 shirts.
• 25% of the shirts are green.
of the green shirts have stripes.
How many shirts are green and have stripes?

Answers

Answer:

54are green and have strips

Step-by-step explanation:

72=100% of the total number of shirts

25%=18 shirts

so that means 18 shirts are green

72-18=54

so 54 striped green shirts.

4. Suppose the length of each side of a cube of ice is 4 centimeters. Find
the surface area of the cube. *

Answers

Answer:

96cm^2

Step-by-step explanation:

cubes have 6 identical sides

4*4=16

16*6=96

The row of elements increase from left to right by number of
( neutrons, electrons, protons or quarks.)​

Answers

Answer:

protons- (i hope this helps!) Im sorry if this is wrong!

Step-by-step explanation:

I think its the answer i have the same question and i don't know it so...

A regular triangular pyramid has a base length of 4.6 centimeters and a slant height of 4 centimeters.
What is the lateral area of the pyramid?the height of the triangular base is approximately 4 cm, what is the surface area of the pyramid?
cm?

Answers

Answer:

hsjsbdjkdowjd nskdkndbdndkckdbnd

The owner of a store buys wooden benches for $50 each. She marks up the
price by 75%. At the end of the season, she sells the remaining benches for
30% off. How much profit does the owner make on each bench at the end of
the season? Show your work

Answers

Answer:

Step-by-step explanation:sdf

HELP! WILL GIVE BRANLIEST!

Answers

6x+x-8=90 because right angle
7x=98 combine like terms
7x/7=98/7
X=14
m<1=6*14=84
m<2=14-8=6

Answer:

ITS X=14 GURL TRUST

Step-by-step explanation:

Answer this question and I'll give you Brainliest! Worth 7 points!

Solve the equation using ANY method! You will get 2 answers!

-5x² = -25

AND please explain! Thank you!!!

Answers

Answer:

see the image below.

Step-by-step explanation:

I hoped this helped:)

Answer:

2.2 or -2.2

Step-by-step explanation:

-5x^2=-25 first, divide by -5

x^2=5 next, take the square root of 5

The square root of 5 is approximately 2.2, and so you get either 2.2 or -2.2, since a negative times a negative is a positive, so it could be -2.2 as well.

Which distance measurement is the most precise?
O A. 73 yards
O B. 57 yards
O C. 29.25 yards
O D. 77.2 yards

Answers

Answer:

C- 29.25

Step-by-step explanation:

This answer goes into the thousendths place, meaning this is the most accurate.

34 + (-21) +15 = 0
5
-2
NE
2.

Answers

Answer:

[tex]34 + ( - 21) + 15 = 28[/tex]

Simplify the following expression: 3x-(2+4x)

Answers

Answer:negative x and negative 2

-x    -2

Step-by-step explanation:

2). The scale factor of two regular octagons is 52. Find the ratio of their
perimeters and the ratio of their areas, *

Answers

Answer:

Step-by-step explanationBy definition we have that the area of a regular octagon is:

A = 4.83L ^ 2

Where, L is the length of the octagon side.

the similarity ratio = the area ratio.

We have then:

similarity ratio = (50) / (18) = 25/9.

the ratio of the perimeters

A1 = 4.83L1 ^ 2

L1 ^ 2 = A1 / 4.83

L2 ^ 2 = A2 / 4.83

L1 ^ 2 / L2 ^ 2 = A1 / A2 = 25/9

L1 / L2 = 5/3

The perimeter is:

P1 = 8L1

P2 = 8L2

P1 / P2 = 8L1 / 8L2 = L1 / L2 = 5/3

answer:

similarity ratio:

25: 9

the ratio of the perimeters:

5: 3

Sarah earned $12 per hour babysitting.
Sarah babysits 15 hours each week.

she receives a 7%pay increase.
How much more money will Sarah earn each week
after the pay increase?

Answers

Answer:

She makes 192.6$$

Step-by-step explanation:

9996666669999999999999 + 767859439234567890

Answers

Answer:

9.9974345e+21

Step-by-step explanation:

im a big brain

True or false: If your expression contains more than one set of parentheses, you should evaluate all of them before doing anything else.

Answers

Answer:

The answer to the above question would be true

someone please help me with this ASAP!

Answers

Answer:

foreal

Step-by-step explanation:

The list shows the numbers of employees in the nine departments at a company.

14, 23, 6, 54, 30, 26, 17, 3, 26

What is the range of the numbers of employees in these departments?
51
18
26
23

Answers

Answer:

51

Step-by-step explanation:

largest number - smallest number

54 - 3 = 51

Answer:

51

step by step

Explanation: The range of a data set is the difference between the largest number in the data and the smallest number in the data set which in this case is 54 - 3 of 51. So the range of this data set is 51.

Michelle and Jay both earn money by melting scrap iron. The amount of iron melted by Michelle, y cubic feet, after x hours is given by the equation y = 17/3x . The graph shows the amount of scrap iron melted by Jay after x hours. Who is spending more time scrapping iron? The picture is down below!
Pls don't put a link or I will report you!

Answers

Answer:

Jay

Step-by-step explanation:

by the graph, after 10 hours, Jay melts 95 ft³

by the equation y = 17/3x, after 10 hours, Michelle melts 0.57 ft³

I need help fast please answer!

Answers

Answer:

B

Step-by-step explanation:

HELP PLEASE HELP ME YOU'LL GET 50+ POINTS BRAINLIEST AND BRAINLIEST PLEADE HELP EM ANSWER CORRECTLY

Answers

Answer:

b

Step-by-step explanation:

its a curved line downwards linear is a straight line and it is decreasing

The answer is B u welcome

If g(x) = -3(x) - 5 then g(?) = 25
10
-20
5
-10

Answers

Answer:

D) -10

Step-by-step explanation:

We will assign g(x) to be equal to 25, and then solve for x:

25 = -3x-5

30 = -3x

10 = -x

-10 = x

So D is correct

Answer:

-10 is correct option

Step-by-step explanation:

g(x)=-3(x)-5

g(-10)=-3(-10)-5

=30-5

=25

Plzzz help asappppppoppp

Answers

Answer:

C

Step-by-step explanation:

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