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3 years ago

What is the value of x?

Mathematics

1 answer:

mojhsa [17]3 years ago

8 0

It would be 25°. also, the interior angles of a triangle always add up to 180 so use that to find answers for other questions like this

You might be interested in

Gretchen is rolling a number cube. What is the probability of rolling a 1 followed by a 2 or a 3

stira [4]

Answer:

1/18

Step-by-step explanation:

The probability of rolling a 1 is 1/6 because there are 6 numbers. You multiply that probability by the probability of getting a 2 or 3 which is 2/6 or 1/3 to get 1/18.

3 0

3 years ago

Product of two integers is -6 and There sum is 1

dedylja [7]

Answer:

3 and -2

Step-by-step explanation:

xy = -6

x + y = 1

let 'x' = y-1

y(y-1) = -6

y² - y + 6 = 0

(y-3)(y+2) = 0

y = 3 and -2

7 0

3 years ago

The scores on a psychology exam were normally distributed with a mean of 60 and a standard deviation of 10 . A failing grade on

tensa zangetsu [6.8K]

Answer:

The cutoff for a failing score was 40,

Approximately 2.3% of the students failed.

Step-by-step explanation:

Given,

Mean, $\mu=60$

Standard deviation, $\sigma=10$

Let x represents the cutoff for a failing score,

Thus, according to the question,

$\frac{x-\mu}{\sigma}=-2$

$\frac{x-60}{10}=-2$

$x-60=-20$

$x=-20+60$

$x=40$

Thus, the cutoff for a failing score is 40,

∵ P(<-2) = 0.02275 = 2.275 % ≈ 2.3 %

Hence, Approximately 2.3 % of the students failed. 

7 0

3 years ago

What is the answer for 7x minus x

larisa86 [58]

$\bf{7x-x}$

We can take out x as a factor

$\bf{x(7-1}$

What is 7-1=?

6 !

So then that means

$\bf{x(6)=6x}$

So your final answer is

$\boxed{\bf{6x}}$

8 0

3 years ago

Read 2 more answers

The gas tank in the car holds 20 gallons of gasoline. You used up 4 gallons and 1 quart on your trip. How much gasoline is left

erma4kov [3.2K]

There are 4 quarts in a gallon so the amount used can be shown as 4 1/4, or 4.25 so to find out how much gas is left in the tank you simply subtract 4.25 from 20.

20-4.25

=15.75

There is 15.75, or 15 3/4, gallons of gasoline left in the tank.

7 0

3 years ago

Read 2 more answers