-1/4 + (-2/7)
Get the sum of the problem

Answer:

we get 48 if we divide both:)

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Let's solve for v :

here, the the terms associated with v, that us -14v and 14v gets cancel out, so there's no solution for v and hence it's value can't be determined.

Hello there!

This triangle is equilateral. Therefore, all the sides are equal.

We are given one of them. It is 12 units.

Therefore, all the other sides are 12 units long.

So a=12

Hope this helps you! :)

#HaveAnAmazingDay

[tex]GraceRosalia[/tex]

The area of a shape is the amount of space it can occupy.

The value of r is 13

From the question (see attachment), we have:

[tex]\mathbf{A =176}[/tex] --- area of the shaded region

[tex]\mathbf{w = 2}[/tex] --- the width of the shaded region

The area of the complete circle would be:

[tex]\mathbf{A_1 =\pi (r + w)^2}[/tex]

The area of the small circle is:

[tex]\mathbf{A_2 =\pi r^2}[/tex]

So, the area of the shaded region is:

[tex]\mathbf{A = A_1 - A_2}[/tex]

Substitute known values

[tex]\mathbf{176 =\pi (r + w)^2 - \pi r^2 }[/tex]

Substitute 2 for w

[tex]\mathbf{176 =\pi (r + 2)^2 - \pi r^2 }[/tex]

Expand

[tex]\mathbf{176 =\pi (r^2 + 4r + 4) - \pi r^2 }[/tex]

Open brackets

[tex]\mathbf{176 =\pi r^2 + 4\pi r + 4\pi - \pi r^2 }[/tex]

Cancel out line terms

[tex]\mathbf{176 =4\pi r + 4\pi }[/tex]

Divide through by 4

[tex]\mathbf{44 =\pi r + \pi }[/tex]

Factor out pi

[tex]\mathbf{44 =\pi(r+ 1) }[/tex]

Divide through by pi

[tex]\mathbf{r + 1= \frac{44}{ \pi} }[/tex]

Substitute 22/7 for pi

[tex]\mathbf{r + 1= \frac{44}{ 22/7} }[/tex]

Using a calculator, we have

[tex]\mathbf{r + 1= 14}[/tex]

Solve for r

[tex]\mathbf{r= 14 -1}[/tex]

[tex]\mathbf{r= 13}[/tex]

Hence, the value of r is 13

Read more about areas of circles at:

https://brainly.com/question/23328170

Answer: 1) 4320 cm^3

              2) 1728 cm^2

Step-by-step explanation:

1) V= 12 x 12 x 30 = 4320

2) S= 144 + 144 + 12 x 30 x 4 = 1728

Answer:

Step-by-step explanation: WELL i cant help lm really sorry

Answer:

13) 10

17) 15

21) 10

25) 1

Step-by-step explanation:

13)

     5x becomes 5(2) which is 5 times 2 = 10

17)

    (4x) + 7 becomes (4 times 2) + 7 = 15

21)

    (2x) + (2y) becomes (2 times 2) + (2 times 3)

                      = 4 + 6

                      = 10

25)

   1/2(z - x) becomes 1/2(4 - 2)

    = 1/2(2)

    = 1

Answer:3[tex]\frac{1}{2}[/tex] hours

Step-by-step explanation:

You plan to go a total distance of 21 miles. At 6 miles per hour it takes you

[tex]\frac{21}{6}[/tex] hours or3 and [tex]\frac{3}{6}[/tex] which equals 3 and 1/2 hours

Answer:

12 15 18 9 7

Step-by-step explanation:

Answer:

Step-by-step explanation:

Multiples of 3 greater than 3 are:

The only odd number is 7

Answer:

The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).

Answer:

The answer is 6 :)

Step-by-step explanation:

The GCF of two non-zero integers, x(30) and y(42), is the greatest positive integer m(6) that divides both x(30) and y(42) without any remainder.

Answer:GCF=2

Step-by-step explanation:

The lowest factor that fits is 2.

2x15=30

2x21=41

Answer:

[tex]y = \frac{10x - 1}{45} \\ [/tex]

Step-by-step explanation:

[tex] \frac{10x - 1}{3y} = 15 \\ 10x - 1 = 15 \times 3y \\ 10x - 1 = 45y \\ \frac{10x - 1}{45} = y \\ [/tex]

Answer:

Step-by-step explanation:

2x+20=12x

We can subtract 2x from both sides:

2x+20-2x=12x-2x

20=10x

20/10=x

x=2

Answer:

A

Step-by-step explanation:

Answer:

18p + 14

Step-by-step explanation:

6

(

3

+

2

)

+

2

{\color{#c92786}{6(3p+2)}}+2

6(3p+2)+2

1

8

+

1

2

+

2

Answer:

1:6

Step-by-step explanation:

A part-to-whole ratio of 1:6 means that there is 1 of something and the total is 6. It also means that there are 5 of something else. To convert a Part-to-Whole ratio such as 1:6, you replace the colon with a fraction bar to get this answer:

1:6 → 1/6

Answer:

55°,90°,35°

Step-by-step explanation:

the sum of interior in a triangle is 180° and 55 +90+35=180

Answer:

c because there's no answer to the other equation and I already use math for it and it's the answer

Answer:

1/2/11

Step-by-step explanation:

1/5×5/10/11=1/5×65/11

=13/11

=1/2/11

Answer:

46.5

Step-by-step explanation:

9×6=54

54-7.5=46.5

The currency called the dollar can be divided or reduced into smaller forms also known as pennies, quarters, nickels and dimes.

The number of pennies is 5, the number of dimes is 5, the number of quarters is 30.

It is important to note that

a penny = $0.01

a dime = $0.10

a quarter = $0.25

Let's represent the number of

pennies = p

dimes = d

quarters = q

The number of pennies is equal to the  number of dimes, hence:

p = q, so we can represent the number of pennies and dimes as y

The box currently  contains 40 coins

So: 40 = y + y + q

q = 40 - 2y...........Equation 1

The total value of the coins is $8.05

So: 0.01y + 0.1y + 0.25q = 8.05 ........... Equation 2

We substitute 40 - 2y for q in Equation 2

0.01y + 0.1y + 0.25(40 - 2y) = 8.05

0.01y + 0.1y + 10 - 0.5y = 8.05

Collect like terms

0.01y + 0.1y - 0.5y = 8.05 - 10

-0.39y = -1.95

Divide both sides by -0.39

-0.39y/-0.39 = -1.95/0.39

y = 5

Since y represents the number of pennies and dimes,  the number of pennies is 5 and the number of quarters is 5.

To solve for the number quarters, we would use equation 1

q = 40 - 2y...........Equation 1

q = 40 - 2 x 5

q = 40 - 10

q = 30

The number of quarters is 30.

Therefore, we have 5 pennies, 5 dimes, and 30 quarters.

To learn more, visit the link below:

https://brainly.com/question/17573861

Answer:

x = 8

Step-by-step explanation:

Supplementary angles add up to 180 degrees to make a straight line.

The red square in one of them indicates that it is 90 degrees on their side which means that it is 90 degrees on the other where (6x+2) and 40 degrees are.

(6x+2) + 40 = 90

6x + 42 = 90

6x = 48

x = 8

-4

Step-by-step explanation:

(n + 5)2 for n = -7

= (-7 + 5)2

= (-2)2

= -4

Another way :

(n + 5)2

= 2n + 10

= 2(-7) + 10

= -14 + 10

= -4