Mathematics High School

pleaseeee help me, i dont have much time to finish

Answers

Answer 1

Answer:

[tex]\sqrt{80} \\OR \\ 5\sqrt{4}[/tex]

Step-by-step explanation:

pythagorean theorm

and then simplify with a factor tree or leave it as is.

BRAINLIEST PLEASE IF RIGHT

Related Questions

Find the inverse of each of the given functions.
f(x) = 4x - 12

Answers

Answer:

(x + 12) / 4

Explanation:

This was the way I was taught, hopefully it helps you.

y = 4x - 12

x = 4y - 12

x + 12 = 4y

(x + 12) / 4 = y

does the point ( 2, 1 ) satisfy the equation y = 2x?

Answers

Answer:

No.

Step-by-step explanation:

Y=2x goes up twice and to the right once, it passes through the origin, therefore it won't touch or go pass by point (2,1)

At a middle school, 74 students have freckles. There are 258 students in the school. To the nearest tenth of a percent, what percent of the students have freckles?

Answers

If there are 258 kids total in school, then let’s take it as 100%
And 74 kids have freckles, so we have to find the % of those kids with freckles.
258–100%
74-?%

Let’s find 1% of the kids.
258/100=2.58

Now let’s find the % of 74 kids.
74/2.58=28.68%~28.7%
(The percent of the kids with freckles is 28.7%)

Use a proportion to estimate each population. (Please solve both questions, thank you) (I’ll reward you with brainliest :)

20.

total counted: 102
tagged counted: 38
total tagged: 56
21.

total counted: 958
tagged counted: 210
total tagged: 305

Answers

Answer:

Step-by-step explanation:

Step 1. (The capture) Capture a sample total counted =958, and them back tagged counted=38,total tagged=56

The idea is to estimate the proportion p = m/N of tagged =102.

Step 2. (The recapture) After everything has settled down, capture a new sample of n fish. Count the number of tagged fish. Suppose that k of them are tagged.

It is reasonable that, k/n would be a good estimante for p = m/N.

Accordingly, for an estimate N of N, se solve the equation m/N= k/n.

The length of Side C D is 11 inches and the length of Side C F is 11 StartRoot 3 EndRoot inches. What is the length of Side D F? Round to the nearest tenth.

11 inches
15.6 inches
19.1 inches
22 inches

Answers

Answer:

Step-by-step explanation:

Determine the measure of x and the exterior angle.
X =
Exterior Angle =
3x + 25°
20°
X + 550

Answers

Answer:

x=65°

Step-by-step explanation:

Since all exterior angles add up to 360°.

⇒(3x+25°) + (20°) + (x+55°) =360°

⇒4x+100°=360° {Add up like terms}

⇒4x=260° {Subtract 100 from both sides}

∴ x=65° {Isolate x (divide both sides by 4)}

I hope this helped you with your math problem but more especially with understanding how to solve.

What can be concluded about the sphere? Check all that apply. The sphere has a radius of 10 cm. The diameter measure is substituted into the formula to find the volume. The radius is half the diameter. The formula to apply is V = four-thirds B h The volume of the sphere is two-thirds the volume of a cylinder with the same radius and height.

Answers

Answer: Its C and E on engenuity

Step-by-step explanation:

The radius is half the diameter.

The volume of the sphere is two-thirds the volume of a cylinder with the same radius and height.

Answer: C, E

Step-by-step explanation: Got it right on edge

The run is the__
change between two points on a line.
A. rising
B. horizontal
C. average
D. vertical

Answers

Answer:

Horizontal

Step-by-step explanation:

The mathematical definition of slope is very similar to our everyday one. In math, slope is the ratio of the vertical and horizontal changes between two points on a surface or a line. The vertical change between two points is called the rise, and the horizontal change is called the run.

Joey is buying a new couch for his living room. The couch costs $379.00. He has a choice of using a coupon for 5% off before taxes, getting a rebate of $20 after taxes, or getting a discount of $18 before taxes. If the sales tax rate is 8%, which option is the better deal?

Answers

Answer:

rebate of 20 after taxes

Step-by-step explanation:

Answer:

rebate of 20 after taxes

Step-by-step explanation:

What are my zeros (x^2 - 8x + 1)?

Answers

Answer:

x= 7.87298334621 x=.12701665379

Step-by-step explanation:

This is in standard form so we have to factor this into

x^2-8x + 16 + 1 = 16

(x-4)^2 = 15

(x-4) = [tex]\sqrt{15\\}[/tex]

x-4= ± 3.87298334621

x-4 = 3.87298334621 x-4= -3.87298334621

x= 7.87298334621 x=.12701665379

PLS HELPP!! thank you

Answers

Answer:

$20.71/[tex]ft^{2}[/tex]

Step-by-step explanation:

290 ÷ 14 = 20.71 (rounded)

Juan ran the lemonade stand for 3 more days after his
first day profit of $12. Each day, he used the money
from sales to purchase more lemons, cups, and sugar
to make more lemonade. The table shows how much
he spent and earned each day
What is the expression needed to find his total
eamings?
52
16-7-22 - 12 - 18-9
16-22-18-7-12-9
16-22-18-7-12-9
16 - 7 + 22-12-18-9

Answers

The answer: C/16 + (–7) + 22 + (–12)

Jay tossed two coins several times and then
recorded the results in the table below.
Coin Toss Results
Toss 1
H;H
Toss 2
H;T
Toss 3
T;T
Toss 4
T;T
Toss 5
T;H
What is the experimental probability that
the coins will land on different sides on his
next toss?
A.1/5
B.2/5
C.3/5
D.4:5

Answers

Answer: I'm pretty sure that the answer is a

Hope this helps :)

Step-by-step explanation:

pls help and neatly show work !!

Answers

Answer:

see explanation

Step-by-step explanation:

The zeros of the graph are x = - 4 and x = 2 , then the factors are

(x + 4)(x - 2) and

y = a(x + 4)(x - 2) ← a is a multiplier

To find a use any other point on the graph and substitute into the equation

Using (0, - 8 ) , then

- 8 = a(4)(- 2) = - 8a ( divide both sides by - 8 )

1 = a

y = (x + 4)(x - 2) = x² + 2x - 8

with b = 2 and c = - 8

The graph is increasing from the turning point ( vertex) to the right

vertex = (- 1, - 9 )

Increasing in the interval [- 1, ∞ )

8.
Find the selling price of a $450 painting with a 45%
markup.

Answers

The answer is 652.50

450+45%

what is the image of the point (-1,-4) after rotation of 90 degrees counterclockwise

Answers

Answer:

(4,1)

Step-by-step explanation:

The mapping is (x, y)=(-y,- x)

(-1,-4)=(4,1)

The 90° counterclockwise is(4,1)

Mark the brainiest if correct

Please help with Volume

Answers

Given:

Length of the cuboid tank = 4 m

Breadth = 2.5 m

Height = 2.4 m

One third of the tank is filled with water.

1 cubic meter = 1000 liters.

To find:

The quantity of the water in the tank.

Solution:

Volume of a cuboid is:

[tex]V=l\times b\times h[/tex]

Where, l is length, b is breadth and h is the height.

The volume of the tank is :

[tex]V=4\times 2.5\times 2.4[/tex]

[tex]V=24[/tex]

Volume of tank is 24 cubic meter.

One third of the tank is filled with water. So, the volume of the water is

[tex]\dfrac{24}{3}=8[/tex]

The volume of water is 8 cubic meters.

We have,

1 cubic meter = 1000 liters.

8 cubic meter = 8000 liters.

Therefore, the quantity of the water in the tank is 8000 liters.

Help please please help help please help!!!!

Answers

Answer:

Explanation:

8.13×10¹⁴

The answer is 14.
Step by step explanation the equation is 8.13*10^14

A regular hexagon is dilated by a scale factor of 2.5. What happens to the perimeter in this process?

Answers

Answer:

Step-by-step explanation:

perimeter of larger hexagon=2.5 perimeter of smaller hexagon

What is the solution set of the quadratic inequality x^2+x-2 ≥ 0

{x| x ≤ -2 or x ≥ 1}
{x| x ≤ -1 or x ≥ 2}
{x| x ≥ -2 or x ≤ 1}
{x| x ≥ -1 or x ≤ 2}

Answers

the answer is the first one

63, 70, 68, 73, 58, 67. What is the mean absolute deviation for these numbers?

Answers

Answer:

66.5

Step-by-step explanation:

HELP! Find the area of the parallelogram the figure is not drawn to scale

Answers

Area of a parallelogram= base x height
38 x 35= 1330
It is not 44 because the height and base should form a perpendicular line

The area of the parallelogram in the diagram given is: 1,330 in.²

What is the Area of a Parallelogram?

Area of a parallelogram = (base × height)

Given the following dimensions of the parallelogram:

Base = 38 in.

Height = 35 in.

Area of the parallelogram = 38 × 35

Area of the parallelogram = 1,330 in.²

Learn more about the area of a parallelogram on:

https://brainly.com/question/3050890

PLZ HELP! AND NO LINKS I will mark the brainiest to whoever can answer this!!!!!!!!

Answers

Answer:

A. 7

Step-by-step explanation:

The rest of the numbers are in the 20's and 30's. 7 is obviously a single digit number, meaning that it is the outlier.

8. What is the surface area of the pyramid
shown below?

Answers

Answer:

Surface area of square pyramid = 380 m²

Step-by-step explanation:

Given:

Side of square base =10 m

Height of Square pyramid = 14 m

Find:

Surface area of square pyramid

Computation:

Surface area of square pyramid = Surface area of Base + 4[Surface area of triangle]

Surface area of square pyramid = [side x side] + 4[(1/2)(b)(h)]

Surface area of square pyramid = [10 x 10] + 4[(1/2)(10)(14)]

Surface area of square pyramid = 100 + 4[70]

Surface area of square pyramid = 100 + 280

Surface area of square pyramid = 380 m²

Using the graph, determine the coordinates of the vertex of the parabola

Answers

Answer:

The vertex is (3,1)

Step-by-step explanation:

Answer:

(3, 1)

Step-by-step explanation:

Locate the vertex. Here it represents the maximum value of this quadratic function. The x-coordinate shown is 3 and the y-coordinate is 1. Thus, the vertex is (3, 1).

Miss Gonzales opened an account with a deposit of $2,000,
The account earned annual simple interest.
She did not make any additional deposits or withdrawals.
At the end of 6 years, the balance of the account was $2,696.
What is the annual interest rate on this account?

Answers

Answer:

i think its 18%

Find the exact value of each trigonometric function using the unit circle

Answers

Answer:

Step-by-step explanation:

use the co-terminal idea Scarlett, 990° = 270 °. You can see this just by looking at the picture.

Tan(270 ) = sin(270) / cos(270) = -sin(90) / cos(90) so now we know that Tan(270) is one of the non-existant angles b/c cos(90) = 0 and that would mean that we have some number over 0... and then the universe blows up.. like my calc II professor liked to say :| I think he was being a bit dramatic. :P anyway, you want answers not long boring stories.. :D so Tan(270) DNE ( does not exist )

If we were to look at a graph of Tan , we'd see that at 270° or 3[tex]\pi[/tex]/2 , Tan runs off to infinity. So there isn't a number to represent it. :/ I'm attaching a picture of the graph

notice in the graph, that when tan gets to 3/2, it's running off to infinity ??

Please help! Will give brainlist if correct. If possible pls explain how you got the answer

Answers

Answer:

30 I think

Step-by-step explanation:

Area of a triangle is (base×height) ÷2

So that means that to solve this you'd need to do 20 (the base) ×3 (the height). This gives you 60; then you divide it by 2. This gives you 30.

I This correct? I don’t fell confident about it and it’s worth 100 points if a did a mistake pls help me fix it and explain?

Answers

Hey! If you need more help with big idea get a app called “Slader” you can find hw answer and quiz answers on their! Just look up the book you’re using on the app

Ms. Thompson is baking bread. The recipe calls for 6.5 cups of flour. She has already put in 2 cups.
How many more cups does she need to put in?

Answers

Answer:

4.5 cups flour

Step-by-step explanation:

6.5 - 2 = 4.5

She put 2 cups so if u do
6.5 - 2 =4.5

This is your answer

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