how do i find the volume in 3d shapes, please help i need to get better grades

Answer:

Step-by-step explanation:

[tex]7x^{2} +1 = 15x[/tex] and [tex]63x^{2} +9x= 135x[/tex]

so, divide because to solve for area you multiply so the opposite of multiplication is division, Anyway so [tex]135x/15x=9x[/tex]

Hope this helps.

Answer: 11.5

Step-by-step explanation:

Answer:

0.00000368

Step-by-step explanation:

Answer:

The radius of the arc is 5

Step-by-step explanation:

An arc is a part of the circumference of a circle that has been cut out. It can be best understood as an incomplete circle. The length of the arc is how long the arc is.

The formula relating how long the arc is with its radius is

length of arc = [tex]\frac{\theta}{360} \times 2 \pi R[/tex]

where R is the radius we are looking for.

Θ = 135 which can be seen as the arc angle

[tex]R =\frac{l \times 360}{\theta \times 2 \pi} =\frac{(15 \pi /4) \times 360 }{135 \times 2 \pi}=5[/tex]

The radius of the arc = 5

Answer:

Simplifying

3x + -5 = 3x + -10

Reorder the terms:

-5 + 3x = 3x + -10

Reorder the terms:

-5 + 3x = -10 + 3x

Add '-3x' to each side of the equation.

-5 + 3x + -3x = -10 + 3x + -3x

Combine like terms: 3x + -3x = 0

-5 + 0 = -10 + 3x + -3x

-5 = -10 + 3x + -3x

Combine like terms: 3x + -3x = 0

-5 = -10 + 0

-5 = -10

Solving

-5 = -10

Step-by-step explanation:

The solution is, solutions in the equation 3x + 5 = 3x + 10 is no solution.

Simplify simply means to make it simple. In mathematics, simply or simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.

here,, we have,

Simplifying

3x + -5 = 3x + -10

Reorder the terms:

-5 + 3x = 3x + -10

Reorder the terms:

-5 + 3x = -10 + 3x

Add '-3x' to each side of the equation.

-5 + 3x + -3x = -10 + 3x + -3x

Combine like terms: 3x + -3x = 0

-5 + 0 = -10 + 3x + -3x

-5 = -10 + 3x + -3x

Combine like terms: 3x + -3x = 0

-5 = -10 + 0

-5 = -10

Solving

-5 = -10

Hence, The solution is, solutions in the equation 3x + 5 = 3x + 10 is

no solution.

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Answer:

x = 4.5

Step-by-step explanation:

Angle B = angle C because it is an isosceles triangle.

3x32 = 87-2x

96 = 87-2x

reduce:

9 = 2x

x = 4.5

An isosceles triangle is one with two equal-length sides. The value of x is 11.

An isosceles triangle is one with two equal-length sides. It is sometimes stated as having exactly two equal-length sides, and sometimes as having at least two equal-length sides, with the latter form containing the equilateral triangle as a particular case.

Since in an isosceles triangle, the angle made by the equal sides and the base are equal, therefore, we can write,

∠B = ∠C

3x + 32 = 87 - 2x

3x + 2x = 87 - 32

5x = 55

x = 11

Hence, the value of x is 11.

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Answer:

-21x-8

Step-by-step explanation:

(13x-3)+(-34x-5)  

(13x-34x)+(-3-5)

-21x+(-8)=

-21x-8

Answer:

a) 1/10

b) 110

Step-by-step explanation:

A) we start by getting the total number of rolls

That would be;

11 + 22 + 7 + 8 + 13 + 19 = 80

The frequency of getting a 4 is 8

The probability that the next roll will be a 4 is;

8/80 = 1/10

b) Firstly, we get the probability of getting a 2

We have this as:

22/80

So for 400 rolls, the number of 2’s will be;

22/80 * 400

= 22 * 5 = 110

Answer:

(1,3)

Step-by-step explanation:

Coordinates are counted first how much spaces on the x-axis. Which in this case Is 1.

And how much spaces on the y- axis in this case 3.

To the right 1 and Up 3.

(1,3)

:)

Answer:

(1, 3)

Those are the coordinates.

Hope that helps!

Step-by-step explanation:

Answer:

Step-by-step explanation:

7) A

8) D

9) B

10) A

Answer:

I think it's 52 but I'm not sure

Step-by-step explanation:

The 6 stands for the side right? so I did the 6x it's four side. and the 7 stands for all the triangles right? so I did 7x the other four and added the answers together

sorry if it's wrong tho

Answer:The square root is √23 = 4.795.

Step-by-step explanation:

Answer:

7 seconds

Step-by-step explanation:

Hello There!

I had created a graph to make it easier to understand

So when y = 0 is when the ball is at the ground

when y = 0 x = 7 so it took about 7 seconds for the ball to hit the ground

Answer:

7

Step-by-step explanation:

Answer:

372

74.4

87

67

Step-by-step explanation:

A. Total marks scored by Harman = maths + science + English + history + Sanskrit

= 86 + 74 + 67 + 56 + 89

= 372

Total marks scored by Harman = 372

B. Average scored by Harman = Total marks scored by Harman / Number of subject

= 372 / 5

= 74.4

Average scored by Harman = 74.4

C. Highest score obtained for science = Disk ha

= 87

D. Lowest score obtained by Ankur = science and Sanskrit

= 67

He scored the same mark in both science and Sanskrit

Lowest score obtained by Ankur = 67

Answer:

Well if each plate is 5.70 then the answer is 34.2

Step-by-step explanation:

Each plate was $0.95 if that's what you're trying to figure out but you didn't really specify what we were looking for

Answer:

B

Step-by-step explanation:

Answer:

The answer is A, Point W.

This is because (2, -5.5) is equal to (x, y). So, x would be 2, while point y will be -5.5. Point W represents this because it goes to 2 on the x axis, and down to -5.5 on the y axis.

Answer:

52 cm ^ 2

Step-by-step explanation:

the big rectangle area: 12 x 4 = 48 cm ^2
the small triangle area: 1/2 Bh = 1/2 (4 ) (3) =  12/2 = 6 cm^s

Area of the shade: 48 + 6 = 52 cm^2

Answer:

Jerome got 5 quarters, 1 dime and, and 3 nickels.

Step-by-step explanation:

Let's define the variables:

N = number of nickels he got

D = number of dimes he got

Q = number of quarters he got

We know that the nickels were worth $0.15

And each nickel is whort $0.05

Then:

N*$0.05 = $0.15

N = $0.15/$0.05 = 3

N = 3

Now we also know that there is a total of 9 coins, then:

N + D + Q = 9

3 + D + Q = 9

D + Q = 9 - 3 = 6

D + Q = 6

And we also know that the total change received is $1.50, then:

D*$0.10 + Q*$0.25 + N*$0.05 = $1.50

We know that N = 3, then we can replace that and get:

D*$0.10 + Q*$0.25 + 3*$0.05 = $1.50

D*$0.10 + Q*$0.25 = $1.50 - $0.15 = $1.35

D*$0.10 + Q*$0.25 = $1.35

Then we have two equations:

D + Q = 6

D*$0.10 + Q*$0.25 = $1.35

To solve this, we can isolate one of the variables in one of the equations, i will isolate D in the first one:

D = 6 - Q

Now we can replace this in the other equation:

(6 - Q)*$0.10 + Q*$0.25 = $1.35

Now we need to solve this for Q.

$0.60 - Q*$0.10 + Q*$0.25 = $1.35

Q*$0.15 = $1.35 - $0.60 = $0.75

Q = ($0.75)/($0.15) = 5

Q = 5

Then Jerome has 5 quarters.

Now we can return to the equation:

N + Q + D = 9

We already know that:

N = 3

Q = 5

Then if we replace those in the equation, we get:

3 + 5 + D = 9

8 + D = 9

D = 9 - 8 = 1

D = 1

Answer:

The answer is b

Step-by-step explanation:

b is  6xy

2x+4y is the equivalent expression of x+x+4y.

An expression is combination of variables, numbers and operators.

The given expression is  x + x + 4y

x plus x plus four times of y.

In the given expression x and y are two variables.

Equivalent expressions are expressions whose value will remain same after simplifying or solving.

We need to add x variable terms once and then with y term

x + x + 4y

2x+4y

Hence, 2x+4y is the equivalent expression of x+x+4y.

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Answer:

Statement               | Reason

1. AB = CB               | Definition of isosceles triangle

2. AD = CD              | Definition of median

3. BD = BD               | Reflexive property

4. ΔADB ≅ ΔCDB    | SSS (Side-side-side)

Answer:

Solution given:

1.AB=BC. definition of isosceles ∆

2.AD=DC. definition of median

3.BD=BD reflexive

4.∆ADB=∆ CDB S.S.S.axiom

Answer:

I will give u the steps undunderneath

work out volume by :

base times length times height

so question 1 is : 4 times 1 times 6 which is 24ft²

same goes the rest

hope this helps. can I have brainliest please.

Answer:

2 1/5 for alice

4 3/14 for Bert

5 for Carl

5 for Eva

5 1/2 for Dennis

Carl and Eva

Answer:

17

Step-by-step explanation:

Answer:

0.06

Step-by-step explanation:

Answer:

I'm pretty sure it's an open circle on 22 pointing to the right

Answer:

It would be h>22. So graph it at 22.

Step-by-step explanation:

Was it correct?? Hope this helps!!