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Fantom [35]
3 years ago
9

What is the value of n?

Mathematics
2 answers:
babunello [35]3 years ago
3 0

Answer:

C. 95

Step-by-step explanation:

Start by finding the two other angles in the triangle.

121* and 144* both have supplementary angles in the triangle. This means their counterparts added to them equals 180*

180-121=59 and 180-144=36

These are two of the angles in the triangle. Every triangle's angles add up to 180, so add the two together and then subtract that from 180.

180-(59+36)=180-95=85*

So the angle next to n is 85*. But, this angle and angle n are supplementary as well!

So, 180-85=n

n=95

There's probably other ways to solve this one, but this is how I'd do it. Hope I helped!

Lyrx [107]3 years ago
3 0

Answer:

its 95 just had that question on apex (:

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Evaluate the expression 18 - 7 x 2 + 6
blsea [12.9K]

Answer:

The answer is 10.

Step-by-step explanation:

7*2=14

Then the expression becomes 18-14+6

18-14=4

4+6=10

6 0
3 years ago
if there is a 10% chance of sun tomorrow and 20% chance of wind and no sun what is the probability that it is windy given that i
harkovskaia [24]

Answer:

=22%

Step-by-step explanation:

Since we have given two conditions simultaneously that is windy and not sunny. So we will use the concept of conditional probability.

The probability of sunny day= P(sunny)=10%

P(sunny)=10%=0.1

The probability of windy and not sunny=P(windy|not sun)=20%

P(windy|not sun)=20% = 0.2

Now divide the both probabilities:

P(windy|not sun)/P(sunny)

=0.2/[1-0.1]              

{Hence there are 10% chances of sun tomorrow than there are (1 - 0.1) chances of no sun}

If we subtract 1 from 0.1 than it becomes:

=0.2/0.9

=2/9

=0.2222222222

=22%

Hence the probability that it is windy = 22% ....

6 0
3 years ago
A model scale is 1 cm = 8m.<br> If the actual object is 40 meters, the model is<br> ____ cm long.
Dovator [93]

Answer:

Mmmmmmmmmmmmm.............

Step-by-step explanation:

MI no sabo amigo perdon

8 0
3 years ago
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Let f(x, y) = (x + y)e x 2−y 2 and R be the rectangle enclosed by the lines x − y = 0, x − y = 2, x + y = 0, and x + y = 3.
dalvyx [7]

Answer:

(1/4)*(e⁶ - 7)

Step-by-step explanation:

a) Given

x − y = 0  if  x = 0  ⇒  y = 0

x − y = 2  if  x = 0  ⇒  y = -2;  if  y = 0   ⇒  x = 2

x + y = 0  if  x = 0   ⇒  y = 0

x + y = 3  if  x = 0  ⇒  y = 3;  if  y = 0   ⇒  x = 3

then we show the region R in the pics 1 and 2.

b) We make the change of variables as follows

u = x + y

v= x - y

If

x - y = 0  ⇒ v = 0

x − y = 2  ⇒ v = 2

x + y = 0  ⇒ u = 0

x + y = 3  ⇒ u = 3

Where u is the horizontal axis and v is the vertical axis, the new region S is shown in the pic 3.

c) We evaluate ∫∫R (x + y)*e∧(x² - y²)dA

The procedure is shown in the pic 4, where we have to calculate the Jacobian in order to use it to get the answer.

7 0
3 years ago
The store brought a pair of shoes for 40$ and sold it for 50$. What percentage was the markup?
PSYCHO15rus [73]

Answer:

20%

Step-by-step explanation:

You would do 40/50 and then 40/50 is also 80/100. Then you'd take the remainder and that'd be the mark up price.

8 0
3 years ago
Read 2 more answers
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