Mathematics High School

I need help with this please

I Need Help With This Please

Answers

Answer 1

Answer:

CB

Step-by-step explanation:

Answer 2

Answer:

CB

Step-by-step explanation:

Related Questions

Help ASAP!!! Easy question i guess?

Which of the following two-dimensional shapes can be rotated to create a sphere?

A. Triangle
B. Square
C. Circle
D. Ellipse

please give an explanation and not just a letter or answer. Thank you.

Answers

The answer is C. circle because a sphere is formed by rotating a circle by any of its diameters

The shape that can be rotated to create a sphere is the circle (option C).

A sphere is a three-dimensional object with all points equidistant from its center. When a circle is rotated about its center axis, it creates a three-dimensional shape that perfectly matches the definition of a sphere.

Let's consider the other options and why they cannot be rotated to form a sphere:

A. Triangle: A triangle is a two-dimensional shape with straight sides. Rotating a triangle around any axis would not result in a three-dimensional shape with all points equidistant from its center, which is the defining characteristic of a sphere.

B. Square: Similarly, a square is a two-dimensional shape with straight sides. Rotating a square around any axis would not create a sphere, as it would still retain its flat, planar nature.

D. Ellipse: An ellipse is a two-dimensional shape resembling a squashed or stretched circle. Rotating an ellipse would not result in a sphere, as it would still retain its elliptical shape.

Therefore, the shape that can be rotated to create a sphere is the circle (option C) due to its symmetrical and curved nature.

To know more about sphere click here :

https://brainly.com/question/27821560

#SPJ2

Solve the system of equations
Y = 2x
X - Y = 10


Answers

Answer:

x=-10, y=-20

Step-by-step explanation:

first you substiture the y in the second equation with the first

x-2x=10

then solve

1x-2x=-1

-x=10

multiply both sides by a negative to make the varible a

positive

x=-10

now we substitue the x in the first equation with -10

y=2(-10)

y=-20

Lucy has 30 bean plants, 24 tomato plants, and 18 pepper plants. She wants to put the plants in rows with only 1 type of plant in each row. Each row will have the same number of plants. How many plants can Lucy put in each row?

Answers

30 because the max amount of plants is 30. so you would need 2 more on tomato nd 12 more on pepper


Two brothers, Gethin and David, share a sum of money in the ratio 2:7.
David gets £30 more than Gethin. Calculate how much money the brothers share.

Answers

12£ and 42£

Step-by-step explanation:

gethin gets 2/9

David gets 7/9

total money is equal to 54

Gethin gets 54x 2/9=12

David gets 54x7/9=42

Kelly met Jesse and Liza at The Maxx for breakfast. The
graph shows Kelly's speed during her 12 minute drive.

Answers

Answer:

wheres the graph? thats what we need

Step-by-step explanation:

Gary ran 6 more laps than Edwin during track practice. Together they
ran 40 laps. How many laps did each person?

Answers

Answer:

edwin 14, gary 20

Step-by-step explanation:

70 students per 2 teachers. How many students per teacher?

Answers

Answer:

35 students per teacher

Step-by-step explanation:

Answer:

35 students per teacher

Step-by-step explanation:

Divide 70 and 2

70/2=35

i don’t understand.
online school is hard

Answers

Answer:

4. [tex]6\sqrt{3}[/tex]

6. [tex]\frac{2\sqrt{6} }{3}[/tex]

8. 23.78

A circle has a diameter of 28 feet. What is the
circumference of the circle?

Answers

Answer:

14

Step-by-step explanation:

the answer is 87.96 ft

Expand and Simplify
2(x-4)+5(x+3)

Answers

expand by distributing

2x-8+5x+15

combine like terms to simplify

7x+7

Two friends, Sasha and Maria, are growing out their hair. They plan to cut it off at a certain
point and donate it to a charity that makes wigs for people with cancer. Sasha's hair is
already 10 centimeters long and grows at a constant rate of 3 centimeters per month. Maria's
hair is 36 centimeters and growing at a speed of 1 centimeter per month. If the girls get their
hair cut on a certain day, they will have exactly the same length to donate. How long will that
take? How long will their hair be?
In
months, both girls' hair will be
centimeters long,

Answers

Answer:

13 months, 49 cms

Explanation:

For Sasha, multiply 3 and 13 together for the growth per month. You should get 39, then add the 10 cm Sasha already has. The sum is 49.

For Maria, multiply 13 and 1 for the growth per month. You should get 13, then add the 36 Maria already has. The sum is also 49.

Hope this helps!

please help!!!!!!!! it’s due in an hour!!!!!!!

Answers

Using (b/2)^2 to create the order, the answer is : 6r^2 -17r + (577/24)

How many degrees is -6.2 rotations clockwise

Answers

answer: −2,232°
explanation:
360°(-6.2) = −2,232°

Which expressions are equivalent to 3(x + 3y + 2x − y )?

3(3x + 2y) and 9x + 6y
3(3x + 4y) and 9x + 12y
3(x + 4y) and 3x + 12y
3(x + 2y) and 3x + 6y
​

Answers

Answer:

3(3x + 2y) and 9x + 6y

Step-by-step explanation:

3(x + 3y + 2x - y)

= 3 (x + 2x) + (3y - y)

= 3 (3x + 2y)

= (3 • 3x) + ( 3 • 2y)

= 9x + 6y

LI
EA
5
S
3. What is 4/5x 25?
a. 5
b. 10
C. 15
d. 20

Answers

Answer: D. 20

Step-by-step explanation:

(4/5)(25/1)

= 100/5

=20

Determine the value of the expression -6.5-(8.2-11.4)

Answers

Answer:

65558 карочедавай ×××××××

Answer:

-3.3

Step-by-step explanation: your welcome!(:

Convert 26 4/5 to an improper fraction

Answers

Answer:

134/5

Step-by-step explanation:

First you do 26 times 5 which is 130. And then you add 4, which is equal to 134/5

Find the solution of this system of equations.
Separate the x- and y-values with a comma.
X + 2y = 8
x - y = 2

Answers

Answer:

Step-by-step explanation:

x + 2y = 8

x - y = 2

x + 2y = 8

-x + y = -2

3y = 6

y = 2

x - 2 = 2

x = 4

(4, 2)

2 /8 The Math Club’s spring banquet was a huge success, and Ray and Aletha are calculating the tip. The total bill was $360. What is the amount of tip that Ray and Aletha if they leave a 20% tip? $50 $542 $72 $56

Answers

Answer:

$72

Step-by-step explanation:

im guessing

Needed ASAP!! I will give brainliest if all completed.

Answers

#2 is slope 1/3 and t intercept of 6 if I’m not mistaken
2. Slope: 3 Y: 6
3. Slope: 4/5 Y: None
4. Slope: - 3/4 Y: 1

Please help it’s for a grade I’ll give you Brinley if right

Answers

Answer: D

Step-by-step explanation:

1. The diameter equals
a. Radius square
b. three times the radius
c. twice the radius
d. half the radius

Answers

Answer:

C) twice the radius

Step-by-step explanation:

the radius is half the diameter

simplify the expression (sqrt3+i)(sqrt3-i) and write the result in the form a+bi

Answers

Answer:

4

Step-by-step explanation:

This expression is a difference of squares.

(√3 + i)(√3 - i) = (√3)²-(i)², which is

3 - (-1)

= 3 + 1

= 4

Which of the following shows the correct solution steps amd solution to 7x-4=-18

Answers

Answer:

D

Step-by-step explanation:

7x - 4 = -18            (add 4 to both sides)

7x = -14                  (divide both sides by 7)

x = -2

the answer is D

A line is parallel to y = -3x + 2 and
intersects the point (4,3). What is the
equation of this parallel line?
y = [?]x + [ ]

Answers

Answer:

y=-3x+15

Step-by-step explanation:

Lauren ran the 400-meter dash in fifty-three and ten hundredths seconds. How
should this decimal be written correctly?



A: . 5310

B: 53.10

C: 53.01

Answers

Answer:

B

Step-by-step explanation:

Im not quite sure but i think it is b i hopeitcan help you!

if you have three apples and john takes 1 how many do you have

Answers

Answer:

you got two apple left I hope this helps

you would have 2 left

please help!
Megan has a bag with 8 red cubes, 3 yellow cubes, and 5 green cubes. What is the probability she will pick a red cube, keep it, and then pick another red cube?

Answers

Answer:

1st time: 50% chance or 8/16 chance

2nd time: 46% chance or 7/15

I can try again if its wrong

Answer:

7/30

Step-by-step explanation:

8/16 that she picks a red cube.

7/15 that she picks another red cube after keeping the first red cube.

multiply 8/16 (1/2) times 7/15 to get 7/30 as your final answer

Write the slope intercept form of the equation of each line

Answers

Answer:

The slope is 1/4 so the slope intercept form is y=1/4+3

Step-by-step explanation:

To find the slope the easiest way from looking at a graph is just to find the rise over run. From looking at the graph we can see that the next point from 0,3 is 4,4. The y here is increased by 1, which means the rise is 1. The x is increased by 4 so the run is 4. From putting rise (1) over run (4) the slope is 1/4. The formula for slope intercept is y=mx+b. m is slope so we substitue that for 1/4 so now we have y=1/4x+b. Then the b is the y intercept, or, at what point the line crosses the y line. Which in this case is 0,3 so the y intercept would be 3 because that is what height it crosses the y line.

25.37 x 3.8
pls help

Answers

Answer:

96.406 :)

Step-by-step explanation:

Answer:

calculator

Step-by-step explanation:

i

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