All categories

2 years ago

I was in the hospital and missed a whole lesson in math HELP ME PLZZZ

Mathematics

1 answer:

lukranit [14]2 years ago

4 0

Answer:

1.5 inches

Step-by-step explanation:

Area of a square:

A = a²

Given:

A = 2.25

Find a:

A = a²

2.25 = a²

$\sqrt{a^2} =\sqrt{2.25}$

a = 1.5

You might be interested in

Need help plzz%zzzzzzzzzzzz

SSSSS [86.1K]

Answer:

where is the question plez give question

7 0

2 years ago

Express 100,0000 as a power of 10

marusya05 [52]

I believe it is 10 and however many zeros there are and there's 6 so if I'm not mistaken the answer is $10^{6}$ .

4 0

2 years ago

Read 2 more answers

Solve the inequality <br> 2x-1/x > 1

Grace [21]

Answer:

− 1 /2 < x < 0

or x > 1

Step-by-step explanation:

Solve the inequality by finding the roots and creating test intervals.

Glad I could help!!

8 0

2 years ago

Read 2 more answers

4(x+2) help please.

inna [77]

Answer:

4x + 8

Step-by-step explanation:

4(x+2)

4*x + 4*2

4x + 8

4 0

2 years ago

Read 2 more answers

A survey showed that 77% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 22 adults are

Sveta_85 [38]

Answer:

The probability that no more than more than 11 of them need correction for their eyesight is 0.00512

No, 11 is not a significantly low low number of adults requiring eyesight correction .

Step-by-step explanation:

A survey showed that 77% of adults need correction for their eyesight.

If 22 adults are randomly selected, find the probability that no more than more than 11 of them need correction for their eyesight.

n =22

p = 0.77

q = 1-p = 1- 0.77=0.23

We are supposed to find $P(x\leq 11)$

$P(x\leq 11)=P(x=1)+P(x=2)+P(x=3)+.....+P(x=11)$

Formula : $P(x=r)=^nC_r p^r q^{n-r}$

$P(x\leq 11)=^{22}C_1 (0.77)^1 (0.23)^{22-1}+^{22}C_2 (0.77)^2 (0.23)^{22-2}+^{22}C_3 (0.77)^1 (0.23)^{22-3}+.....+^{22}C_{11} (0.77)^1 (0.23)^{22-11}$

Using calculator

$P(x\leq 11)=0.00512$

So, The probability that no more than more than 11 of them need correction for their eyesight is 0.00512

No, 11 is not a significantly low low number of adults requiring eyesight correction .

3 0

2 years ago