Need help! Its For Khan Academny

Need Help! Its For Khan Academny
Need Help! Its For Khan Academny

Answers

Answer 1

Answer:

Your 3 answers are

A) y=0.25xC) GraphE) Table

Step-by-step explanation:

If you were to graph them and compare the original graph they are exactly the same.

A) y=0.25x is the same thing as y= 1/4 * x

slope m is 1/4 on the original graph and given decimal form.

C) Is the same graph but the point given is at (4,1)

E) is the points between 6<x<8 and 1.5<y<2 as the original graph.


Related Questions

Find the least common multiple 18, 9​

Answers

Answer:

The common multiple is 18

Step-by-step explanation:

Because 9*2=18 and 18*1=18

Answer:

Simply 18.

Step-by-step explanation:

18 = 2*9

exact side length of a cube of 55 units

Answers

Answer:

3.68

Step-by-step explanation:

55 = l x w x h

what x what x what would equal 55

5 x 11 = 55

so

I need the answer to this question

Answers

Answer:

its either 2 or 4 because a triangle can't change its shape it need to be the same shape

Answer:

2, 3, and 4.

Step-by-step explanation:

  The only answer that would result in a non-congruent triangle would be Option 1. It is asking you to dilate by a scale factor of 2 which would make the triangle 2 times bigger. In that case, the triangle to not be congruent.

  Reflections, Rotations, and Translations do not change the size of the triangle which means it remains congruent.

Asked about this yesterday, can someone please help! I really need to pass my math class!

Answers

Answer:

use area

Step-by-step explanation:

we can't use volume here since we are dealing with the outside part only

so area of a cylinder is =πr²h

our r represents the radius which is diameter/2

r=7.5/2

=3.75m

our h represents height which is 12.5m

so put in our formula

area = π×(3.75)²×(12.5)

=552.2330836m³

that's it dear

give my answer a brainliest

Find the surface area and volume of a cube with a cylinder cut out
Cylinder has 1m radius, cube: 6m

Answers

Answer:

247.42 m^2 to the nearest hundredth

Step-by-step explanation:

The surfaces area of the side of the cylinder = 2πrh

= 2π(1)(6)

= 12π m^2.

Now we need the surface area of the cube minus the 2 circles at each end of the  cylinder

= 6^3 - 2πr^2

= 216 - 2π

So the required surface area

=  12π + 216 - 2π

= 217 + 10π

= 247.4159 m^2

Two prisms are similar and their ratio of similarity is 2:5.

Find the area of a base of the larger prism if the area of a base of the smaller prism is 31 square units.

Round to the nearest hundredth.

help fast please

Answers

Answer:

77.5 square units

Step-by-step explanation:

set up a proportion first.

[tex] \frac{2}{5} = \frac{31}{x} [/tex]

then, cross multiply

2x = 155

divide by 2

x = 77.5

The area of the base of the larger prism is approximately 193.75 square units.

How to calculate the area?

If two prisms are similar, then their corresponding sides are proportional. Let the smaller prism have a base area of 31 square units, and let the corresponding side of the larger prism have length x.

Since the ratio of similarity is 2:5, we have:

x / s = 5/2

where s is the length of the corresponding side of the smaller prism. Solving for x, we get:

x = (5/2) x s

We know that the area of the base of a prism is given by the formula:

A = s²

Substituting the value of s in terms of x, we get:

A = ((5/2) x s)²

A = (25/4) x s²

Substituting the value of s² in terms of the area of the smaller prism, we get:

A = (25/4) x 31

A = 775/4

A = 193.75 square units

Therefore, the area of the base of the larger prism is approximately 193.75 square units.

To know more about an area of prism follow

https://brainly.com/question/28016184

#SPJ2

PLS ANSWER FAST!! WILL GIVE BRAINLIEST!!

Answers

Answer:

See below

Step-by-step explanation:

27 ^1/5      is the radical sign with a 5 in the V portion   and   27   under the horizontal bar portion       ====>   the 1/5th root of 27

Answer:

⁵ 27

i dont know how to get the line think

Change 2700 mL to litres

Answers

Answer:

the answer is 2.7litres

Answer: 2.7litres

Step-by-step explanation: 1000ml makes 1litre

2700÷1000=2.7

What is the angle, in degrees, if the Area is 180 square miles and the radius is 42,240 feet?

Answers

Step-by-step explanation:

the area of a circle (all 360°) is

pi×r²

with r being the radius.

the area of a circle segment is just the corresponding fraction of the whole circle.

so the area of a segment of x degrees is

pi×r² × x/360

in our case we know

pi×42240² × x/360 = 180 mi²

we also know that there are 5280 ft in 1 mile.

so, the radius is actually

42240 / 5280 = 8 miles

and therefore our equation resulting in mi² has to use miles and not ft and has to look that way :

pi×8² × x/360 = 180 mi²

pi×64 × x/360 = 180

pi×64 × x = 180×360

pi×x = 180×360/64 = 1012.5

x = 1012.5/pi = 322.2887598...°

so, the angle of the segment of a circle with the area of 180 mi² and the radius of 8 mi is 322.2887598...°

In a school, 2/3 the students study a language.
Of those who study a language, 2/5 study French.
Find the ratio of students who study French to students who do not study French.
Give your answer in its simplest form?

Answers

Answer:

4:11

Step-by-step explanation:

let's say there 15 students, 10 of them study a language. Of the 10, 4 (the 2/5) study french, so of the 15 students 4 study french, making it 4:11.

2/3 - language

10/15

2/5 - French

2/5: 10/15
5:3

HELP ME OUT PLS!!!!! I ONLY HAVE 1 MIN LEFT TO FINISH MY WORK!!! 20 PTS

1. Referring to the table above, how would you graph the solution set representing students that receive a note sent home to parents?

Draw points on the integers to the right of, and including, 0.
Draw points on the integers to the left of 0.
Draw points on the integers to the right of 0.
Draw points on the integers to the left of, and including, 0.

2. Tomas is leaving a tip of 18% of his original bill. If the amount of the tip is $2.34, which of the following equations can be used to find the amount of his original bill?
0.18b = 2.34
b - 0.18 = 2.34
2.34 x 0.18 = b
b/2.34 = 0.18

Answers

Answer:

It would be $13 as the original bill

But the correcy answer is D  

Step-by-step explanation:

78. Using your own words, explain the
difference between a polynomial with five
terms and a polynomial with a degree of 5.

Answers

Answer:

terms are like 2x 2x^2 3x ect. polynomials with a degree of 5 is where the term that has the highest exponent is the degree

Step-by-step explanation:

^

Find the DIAMETER of a circle for the circumference given.
circumference = 87 km
A) 4 km
C) 12 km
B) 10 km
D) 8 km

Answers

Circumference=87km

Diameter be d

πd=Circumferenceπd=87d=87/πd=27.71km

Find the surface area of the cylinder in terms of pi.

Answers

Answer:

104π cm²

Step-by-step explanation:

Surface Area of cylinder

SA = 2πrh + 2πr²SA = 2πr (h + r)r is the radius and h is the height

Given (from the figure)

r = 4 cmh = 9 cm

Solving

SA = 2πr (h + r)SA = 2π × 4 (9 + 4)SA = 8π × 13SA = 104π cm²

If A = 26, B = 19.5, then C =

Answers

Answer:

Asuming this is a triangle: C = 32.5

Step-by-step explanation:

Asuming this is a triangle:

Use the pythagorean Therom:

[tex]A^2 + B^2 = C^2[/tex]

[tex]26^2 + 19.5^2 = C^2[/tex]

[tex]676+380.25=1056.25[/tex]

[tex]C= \sqrt{1056.25}[/tex]

[tex]C= 32.5[/tex]

The ratio of the number of bananas to the number of apples at a fruit stand is 3:5. Moe says that the ratio is equivalent to 12:25.

Answers

Answer: Moe is wrong.

Step-by-step explanation:

Moe is incorrect because 25 divided by 5 equals 5 (constant of proportionality) but 12 divided by 3 does not equal 5 (it equals 4)

In the ordered pair below, which value represents the output of a function?
(4, 20)

Answers

Answer:

4 units to the right on the x- axis & 20 units up on the y-axis

Step-by-step explanation:

X-Axis= horizontal-------

Y-Axis= Vertical  I I I

The first ordered pair is 4 which goes on the X axis (left to right) left is negative right is positive.

next is 20 on the y axis (up and down) . the y axis is like an elevator up is positive and down is negative

For large parties A restaurant adds a 15% service charge to the bill how much would be added to a bill of 638. 40

Answers

Answer:

95.76$

Step-by-step explanation:

Calculate 15% of 638.40$

we have 15%/100% x 638.40

which is 95.76$

It means that a charge of 95.76$ will be added to an amount of 638.40$

What is the best name for angle Y?

Triangle X Y Z. Side X Z extends to form angle W.
exterior angle
alternate interior angle
remote interior angle
adjacent interior angle

Answers

Answer:

Exterior angle.

Step-by-step explanation:

by my analysis

if hey said triangle XYZ

it should mean each exterior angle is named either X, Y, or Z.

so angle Y should be an exterior angle (outside angle).

but the angle formed by X and Z will be an interior angle (inside angle).

Hope this helps .

Answer:

The answer is C: Remote Interior Angle

Step-by-step explanation:

Took the Test.

If the diameter of a youth baseball is 2.8 inches and the diameter of an adult softball is 3.8 inches, what is the approximate difference in their volumes? use 3.14 for pi. round to the nearest tenth. recall the formula sphere volume = four-thirds pi r cubed. 1.0 cubic inch 17.2 cubic inches 40.2 cubic inches 137.8 cubic inches

Answers

The approximate difference in their volumes is 17.2 cubic inches

Volume of a sphere

A sphere is a round solid figure, with every point on its surface equidistant from its centre.

The formula for calculating the volume of a sphere is;

V = 4/3πr³

where:

r is the radius of the sphere


Given the following

diameter of youth ball =2.8in

radius of youth ball r = 1.4in

diameter of adult ball =3.8in

radius of adult ball R = 1.9in

Determine the difference in volume

D = 4/3π(R³ - r³)

Substitute

D = 4/3π(1.9³ - 1.4³)

D = 4/3π(4.115)

D =17.2 cubic inches

Hence the approximate difference in their volumes is 17.2 cubic inches

Learn more on volume of sphere here: https://brainly.com/question/10171109

Answer:

B 17.2

Step-by-step explanation:

Plss help i will give 100 for the right answer

Answers

A tree struck by lighting broke at a point 13 ft above the ground as shown. What was the height of the tree to the nearest tenth of a foot?

13² + 38² = c², so 169 + 1444 = c², 1613 = c², and 40.2 ≈ c.

Add this length to the height of the bottom tree: 40.2 + 13 = 53.2 ft.

The height of the tree was about 53.2 ft.

Explanation:

Solved using pythagoras theorem.

Stumped on this question, please add explanation if you can

Answers

Answer:

C

Step-by-step explanation:

Lets look at all the answer choices:

A and looks like a little number.

B said 7. 7 x 16 = 122 7 x 12 = 84.

122 + 56 = 178. 140 + 84 = 224.

B is incorrect

C said 21. 21 x 16 = 336 21 x 12 = 252

336 + 56 = 392 and 140 + 252 = 392

C is the correct answer.

36 A community center is collecting blankets. The director of the center has asked 135 families
to donate 3 blankets each. If 20% to 40% of the families donate 3 blankets each, which of
these could be the number of blankets the center collects from these families?
F 240
G 50
H 110
J 170

Answers

Answer: H is between 81 And 162

Step-by-step explanation: 20/100 ×135/1 = 27 FamilieFamilies with 81 Blankets

40/100 × 135/1 = 54 families with 162 Blankets

i) Given that a = 1, b = 3, c = 7, evaluate abc

Answers

ABC = A×B×C1×3×7 = 21

Hope it helps

Given ↓The expression abca =1 b = 3c = 7

To Find ↓The simplified value of this expression

Calculations ↓

If we weren't given the values of the variables, it would be impossible to simplify the expression any further.

Luckily, we are given the value of each of the three variables.

The value of a is 1 :

1bc

or

bc

The value of b = 3 :

3c

Finally, the value of c is 7 :

3*7

21

Evaluated Expression ↓

21

solve for x : -2 + x = 3

Answers

Answer:

x = 5

Step-by-step explanation:

- 2 + x = 3

x = 3 + 2

x = 5

______

Hope it helps ⚜

Answer

- 2 + x = 3

5 = x

Identify the slope and y-intercept of each of the following lines. Then graph each line.
x = -7
Do I mark the graph attached?

Answers

Answer:

Below!

Step-by-step explanation:

Since there is a variable (x) on the L.H.S and a constant (-7) on the R.H.S, the line will be a vertical line intersecting the x-coordinate (-7).

~Graph attached

Determining the y-intercept of the line:

Since the line is a vertical line, it's y-intersept is undefined as it will never intersect the y-axis.

Determining the slope of the line:

To determine the slope of the line, pick any two points that is on the line.

⇒ (-7, 0) and (-7, 1)

Using the slope formula (y₂ - y₁/x₂ - x₁):

⇒ 1 - 0/-7 - (-7)⇒ 1/-7 + 7⇒ 1/0

∴ Any number divided by 0 is undefined

⇒ underfined

Thus, the slope and the y-intercept are undefined.

x=-7

So

line will be parallel to y axis

no y intercept as parallel to y axis means it will never intercept y axis

Slope will undefined

Graph attached

For each figure, find x.

Answers

Step-by-step explanation:

[tex]9 \\ {x}^{2} = 225 \\ x = 15 \\ .......... \\ 10 \\ {x}^{2} = 676 \\ x = 26[/tex]

Solve the equation. Then check your solution

v/7=3

A.-21
B.21
C.-4
D.10



Answers

Step-by-step explanation:

[tex] \frac{v}{7} = 3 \\ [/tex]

[tex] \frac{v \times 7}{7} = 3 \times 7 \\ [/tex]

[tex]v = 21 \\ [/tex]

Answer:

Option B is correct i.e. 21

Step-by-step explanation:

In the question we're provided with an equation that is :

v/7 = 3

And we are asked to find the solution for the equation .

Solution : -

[tex] \longrightarrow \: \frac{v}{7} = 3[/tex]

Multiplying by 7 on both sides :

[tex] \longrightarrow \: \frac{v}{ \cancel{7} }\times \cancel{7} = 3 \times 7[/tex]

On further calculations , we get :

[tex] \longrightarrow \: \blue{\boxed{v = 21}}[/tex]

Therefore , solution for equation is 21 .That means option B is the correct answer.

Verifying :

We are verifying our answer by substituting value of v in the equation given in question :

[tex] \longrightarrow \: \frac{v}{7} = 3[/tex]

Putting value of v :

[tex] \longrightarrow \: \cancel{\frac{21}{7}} = 3[/tex]

By dividing 21 with 7 , we get :

[tex] \longrightarrow \:3 = 3[/tex]

[tex] \longrightarrow \: L.H.S=R.H.S[/tex]

[tex] \longrightarrow \: Hence , \: Verified.[/tex]

Therefore , our answer is valid .

#Keep Learning

You get a qoute for insurance on your forester. They qoute you $1,860 for 1 year. How much is your insurance payment per month?

Answers

answer $155
problem explanation: 1 year = 12 months
1860/12= 155

Answer:

$155

Step-by-step explanation:

Simplify Each Radical Expression. Leave in radical form. (Do not use decimals.)
3. 4[√(3)] - 7[√(3)]

Answers

[tex]4\sqrt 3 - 7 \sqrt 3\\\\=(4-7) \sqrt 3\\\\=-3\sqrt 3[/tex]

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