3 years ago

I need help cuz I don't understand

Mathematics

2 answers:

Jlenok [28]3 years ago

4 0

The answer is 78%

text me if i'm wrong

egoroff_w [7]3 years ago

3 0

I agree also the answer is 78%

You might be interested in

The weights of items produced by a company are normally distributed with a mean of 4.5 ounces and a standard deviation of 0.3 ou

GalinKa [24]

Answer:

The right solution is:

(a) 0.8849

(b) 12.28%

(c) 4.9935

(d) 28004

Step-by-step explanation:

Given:

Mean,

= 4.5

Standard deviation,

= 0.3

(a)

P(x > 4.14)

As we know,

⇒ $z = \frac{4.14-4.5}{0.3}$

$=-1.20$

then,

⇒ $P(z>-1.20) = P(z$

$=0.8849$

(b)

P(4.8 < x < 5.04)

= $P(\frac{4.8-4.5}{0.3} < \frac{x-\mu}{\sigma} < \frac{5.04-4.5}{0.3} )$

= $P(1$

= $P(z$

= $0.9641 -0.8413$

= $0.1228$

or,

= $12.28$ (%)

(c)

P(x > x) = 0.05

z value will be,

= 1.645

⇒ $1.645 = \frac{x - 4.5}{0.3}$

$x = 4.9935$

(d)

P(x < 5.01)

⇒ $z = \frac{x- \mu}{\sigma}$

$=\frac{5.01-4.5}{0.3}$

$=1.7$

P(z < 1.70) = 0.9554

⇒ $n = \frac{27875}{0.9954}$

$=28004$

3 0

3 years ago

What is the expression 6k + 50.5 equal to? How do you write this equation?

vivado [14]

Answer:

$\huge\green{ \mid{ \underline{ \overline{ \tt ♡ ANSWER ♡ }} \mid}}$

$6k + 50.5 = 0 \\ 6k = - 50.5 \\ k = \frac{ - 50.5}{6} \\ k = - 8.4166..$

$\huge\blue{ \mid{ \underline{ \overline{ \tt ꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐ }} \mid}}$

7 0

3 years ago

Using only addition, how can you add eight 8’s to get the number 1,000?

FinnZ [79.3K]

Answer:

888+88+8+8+8

Step-by-step explanation:

5 0

3 years ago

Triangle ABE ~ Triangle CDE. Find the length of altitude for NE.

Varvara68 [4.7K]

Hope that it will help you

7 0

3 years ago

1/2x=1/4 what does x =???

nalin [4]

Answer:

x=2

Step-by-step explanation:

First of all cross-multiply.

1/2x=1/4

(1) x (4) =1 x 2x

4=2x

After flip the equation.

2x=4

Then divide both sides by 2.

2x/2=4/2

x=2

6 0

4 years ago

Read 2 more answers