All categories

3 years ago

Find x 76° 6x-9 47°

Mathematics

1 answer:

Zina [86]3 years ago

5 0

This is not formatted correctly.

76 degrees and 47 degrees?

You might be interested in

You have a 5-question multiple-choice test. Each question has four choices. You don’t know any of the answers. What is the exper

mrs_skeptik [129]

Each question has four choices, then the probability to guess a correct answer is $p= \frac{1}{4}$ and the probability to select incorrect choice is $q=1-p=1- \frac{1}{4} = \frac{3}{4}$ .

You have a 5-question multiple-choice test, then n=5. The probability that you will guess exactly three out of five questions correctly is 

 $C_n^kp^nq^{n-k}=C_5^3p^3q^{5-3}= \dfrac{5!}{3!\cdot 2!} \left( \dfrac{1}{4} \right)^3\left( \dfrac{3}{4} \right)^2=\dfrac{1\cdot 2\cdot 3\cdot 4\cdot 5}{1\cdot 2\cdot 3\cdot 1\cdot 2} \cdot \dfrac{9}{1024} =$ 
$= \dfrac{90}{1024} = \dfrac{45}{512}$ .

6 0

3 years ago

Read 2 more answers

Can someone help me pls I’m stuck on both problems

Degger [83]

Answer:

171

Step-by-step explanation:

6x6x4.75 is 171

3 0

3 years ago

Read 2 more answers

Here are scores for two softball teams for seven innings. Each team's total score is the sum of the numbers in its row. Rosie's

gladu [14]

Answer:

<h2> The Susans Bees lost by 3 points.</h2>

Step-by-step explanation:

Rosie's Riveters has 13 points in all.

The Susans Bees have 10 points in all.

13 - 10 = 3.

5 0

2 years ago

True or false 398+9 = 400+8

defon

Answer: False

Step-by-step explanation:

398 + 9 = 407

400 + 8 = 408

If the equation was 398 + 10 then yes it will be equal to 400 + 8

4 0

3 years ago

Can someone explain how to do this?

Tems11 [23]

x+7
------------------- =
x^2+4x -21

x+7
= -------------------
   (x+7)(x-3)

1
= ----------  where x is not equal -7 and 3
   x - 3

answer is A. first choice

4 0

3 years ago

Find x 76° 6x-9 47°​

Find x 76° 6x-9 47°