All categories

2 years ago

I need help please help this is do tomorrow

Mathematics

1 answer:

VikaD [51]2 years ago

6 0

Answer: A!

Step-by-step explanation:

You might be interested in

WILL GIVE BRAINLIEST<br><br>Find the scale factor

Sloan [31]

Please I’m in 5th grade I tried but it’s too hard but please mark me Brainlyest

7 0

2 years ago

Read 2 more answers

The lengths of nails produced in a factory are normally distributed with a mean of 3.34 centimeters and a standard deviation of

Shtirlitz [24]

Answer:

3.47 and 3.21

Step-by-step explanation:

Let us assume the nails length be X

$X \sim N(3.34,0.07^2)$

Value let separated the top 3% is T and for bottom it would be B

$P(X < T)= 0.97$

Now converting, we get

$P(Z < \frac{T-3.34}{0.07})= 0.97$

Based on the normal standard tables, we get

$P(Z < 1.881)= 0.97$

Now compare these two above equations

$\frac{T-3.34}{0.07} = 1.881 \\\\ T = 1.881 \times 0.07 + 3.34 \\\\ = 3.47$

So for top 3% it is 3.47

Now for bottom we applied the same method as shown above

$P(Z < \frac{B-3.34}{0.07})= 0.03$

Based on the normal standard tables, we get

$P(Z < -1.881)= 0.03$

Now compare these two above equations

$\frac{B-3.34}{0.07} = -1.881$

$= -1.881 \times 0.07 + 3.34 \\\\ = 3.21$

hence, for bottom it would be 3.21

7 0

2 years ago

Divide three fourths ÷ two fifths

KengaRu [80]

Your answer would be on eof the three
15/8
1.875
1 7/8
Hope this helps...

7 0

2 years ago

Read 2 more answers

Help with number 11 forgot how to do problem

Lelu [443]

The first equation can be written as:
2x = 5 + 3y

Substituting the second equation into the first equation and rearranging:
-4y - 16 = 5 + 3y
-21 = 7y
y = -3

Substituting y = -3 into the second equation:
x = -2(-3) - 8
x = -2

7 0

3 years ago

Read 2 more answers

Brainlest if done all thank you

Shkiper50 [21]

#1: for x input:6,9,13. y=12,15,19 #2: for x input:0,3,7. y= -1,2,6, #3: for x input:0,6,12, y=0,18,36 #4: for x input:2,4,5. y=1,2,2.5 #5: 33

7 0

2 years ago

Read 2 more answers