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3 years ago

Solve for n. 39 = n − –12 n =

Mathematics

1 answer:

Cloud [144]3 years ago

6 0

Answer:

Two negative make a positive so this equation is basically 39 = n + 12 so you need to subtract 12 from each side. This makes it n = 27

Hope this helps!

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Pls answer quickly!!!

gizmo_the_mogwai [7]

Answer:

x = 90

y = 100

z = -10

Step-by-step explanation:

To find x and y in the above parallelogram ABCD as shown above, recall that one of the properties of a parallelogram is: the consecutive angles in a parallelogram are supplementary.

This means that the sum of angle A and angle B in the parallelogram ABCD = 180°.

Thus,

(x + 30)° + (x - 30)° = 180°

Solve for x

x + 30 + x - 30 = 180

x + x + 30 - 30 = 180

2x = 180

Divide both sides by 2

2x/2 = 180/2

x = 90

=>Find y:

Also, recall that opposite angles in a parallelogram are congruent.

This means, angle A and angle C in parallelogram ABCD above are equal.

Thus,

(x + 30)° = (y + 20)°

Plug in the value of x to solve for y

90 + 30 = y + 20

120 = y + 20

Subtract 20 from both sides

120 - 20 = y

100 = y

y = 100

=>Find z, if z = x - y

z = 90 - 100

z = -10

8 0

4 years ago

Find the volume of a cylinder that has a diameter of 12 in. and a height of 15 in

daser333 [38]

Answer:

<h3> $\sf{ \boxed{ \bold{1697.14}}}$ </h3>

Step-by-step explanation:

Given,

diameter ( d ) = 12 in

height ( h ) = 15 in

finding the radius of a cylinder

Radius is just half of diameter.

Radius ( r ) = 12 / 2 = 6 in

finding the volume of a cylinder having radius of 6 in and height of 15 in

Volume of a cylinder =  $\sf{\pi \: {r}^{2} h}$ 

⇒ $\sf{ \frac{22}{7} \times {6}^{2} \times 15}$

⇒ $\sf{ \frac{22}{7} \times 36 \times 15}$

⇒ $\sf{1697.14} \: in$ 

Hope I helped!

Best regards!!

6 0

4 years ago

Read 2 more answers

Can a human bean hep meh wit dis pls i ned hep

Morgarella [4.7K]

Answer:

See below

Step-by-step explanation:

to find the slope of a line you need to use the formula y1-y2/x1-x2

2. the points are (3,2) and (1,-2)

y1-y2 = 2--2 = 4

x1-x2 = 3-1 = 2

4/2 is the same as 2

3. (1,4) and (2,1)

4-1=3

1-2=-1

3/-1 = -3

the slope is -3

4. (6,5) and (3,1)

5-1 = 4

6-3 = 3

4/3

the slope is 4/3

6 0

3 years ago

X Y Is this "table" linear or nonlinear?

Gnesinka [82]

They are linear.
hope it helps goodluck

3 0

3 years ago

In triangle RST, RS=4, ST=8, RT=5 what type of angle is R

dem82 [27]

I would say that it's an acute angle ....

4 0

3 years ago

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