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3 years ago

Pls help me quick !! Just simple quick answers

Mathematics

1 answer:

Aleksandr-060686 [28]3 years ago

4 0

Answer:

j=3 inches

Step-by-step explanation:

Since the two triangles are similar, we can set up a ratio

1in:3in

j:9in

Now we solve for j

Since the length of the side of the shorter triangle is 1/3 the length of the side of the longer triangle (as shown by the ratio 1:3 which can also be written as 1/3), we can multiply 9 by 1/3. This gives us 3.

So j=3 inches

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The distribution of bladder volume in men is approximately normal with mean 550 ml and standard deviation 100 ml. what percent o

ruslelena [56]

To solve this, we use the z-test.

z = (x – u) / σ

when x = 450

z = (450 – 550) / 100

z = -1

We use the standard distribution tables to find for P.

P = 0.1587

Since we are looking for values greater than x = 450, therefore:

1 – 0.1587 = 0.8413

This means that 84.13% have bladder volume larger than 450 mL.

7 0

3 years ago

What number fills in the blank to complete the factorization of 3x + 24? (x + 8)

Crank

we have

$3x+24$

Find the greatest common factor GCF

we know that

$3\\ Factors=1,3\\ \\ 24=2^{3}*3\\ Factors=1,2,3,4,6,8,12,24$

The GCF is equal to $3$

therefore

$3x+24=3*(x+8)$

the answer is

The number is $3$

8 0

4 years ago

Read 2 more answers

Camila sets up a passcode on her tablet, which allows only nine-digit codes. A spy sneaks a look at Camila's tablet and sees her

laila [671]

Answer:

$\frac{1}{10^9}$ probability the spy is able to unlock the tablet on his first try.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Desired outcomes:

1 correct password, so $D = 1$

Total outcomes:

Nine-digit codes.

For each digit, there are 10 possible outcomes. So

$T = 10^9$

What is the probability the spy is able to unlock the tablet on his first try?

$p = \frac{D}{T} = \frac{1}{10^9}$

$\frac{1}{10^9}$ probability the spy is able to unlock the tablet on his first try.

7 0

3 years ago

X and Y are continuous values, both measured to 2 significant figures. X=230 and Y=400. work out the greatest possible value of

kirill115 [55]

"Two significant figures" means that a digit after the second one could actually be anything ... it wasn't measured. 'X' could be anything from 230 to 239. 'Y' could be anything from 400 to 409. The greatest possible value of that fraction is. (239)/(409 squared) .

8 0

4 years ago

The circle's area?

shepuryov [24]

Step-by-step explanation:A≈50.27km²

d Diameter

Using the formulas

A=πr2

d=2r

Solving forA

A=1

4πd2=1

4·π·82≈50.26548km²

Questions and answers the answer is 50.27km

5 0

3 years ago