All categories

3 years ago

B. , using the Pythagorean Theorem, show that. C. Solve for X

Mathematics

1 answer:

valkas [14]3 years ago

4 0

X=20
WORK:

100+ 3x +x=180
4x+100=180
-100 -100
4x=80
divide both sides by 4
x=20

You might be interested in

HELP PLEASE

DENIUS [597]

The answer is 90° degrees.

8 0

3 years ago

Suppose that you randomly draw one card from a standard deck of 52 cards. After writing down which card was drawn, you replace t

KengaRu [80]

Answer:

0.139

Step-by-step explanation:

We are given that

Total number of cards=52

n=18

We have to find the probability of drawing at least 7 spades

Total number of spaded in deck of 52 cards=13

Probability of getting spade= $p=\frac{13}{52}=\frac{1}{4}$

Probability, $P(E)=\frac{favorable\;cases}{total\;number\;of\;cases}$

Probability of getting no spade= $q=1-p=1-\frac{1}{4}=\frac{3}{4}$

By binomial theorem of probability

$P(X=x)=\binom{n}r}p^rq^{n-r}$

P(x $\geq 7)=1-P(x\leq 6)$

The probability of drawing at least 7 spades= $1-\sum_{r=0}^{6}\binom{18}{r}(\frac{3}{4})^{18-r}(\frac{1}{4})^r$

The probability of drawing at least 7 spades=0.139

4 0

3 years ago

What do the dots above the number 3 respresent?

nydimaria [60]

Answer:

the dots represent how many people have 3 email accounts. In this case 5.

Step-by-step explanation:

It is the 3rd one. There are exactly 5 students with 3 email accounts.

Let me know if it was helpful.

5 0

4 years ago

Read 2 more answers

Find the value of a2+bc√−d, when<br><br> a = –3, b = 2, c = 100, and d = –2.

pav-90 [236]

Umm im pretty sure d= -3x im not to sure

5 0

3 years ago

Read 2 more answers

Need help bad! and thankyou so much.

puteri [66]

Answer:

Step-by-step explanation:

Given

C = πd ( isolate d by dividing both sides by π )

$\frac{C}{\pi }$ = d → C

6 0

4 years ago