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3 years ago

6

Height of student folliwing normal distribution with a mean 170 cm and standard deviation of 5 cm. What is range of values conta

ins 95% of data

1 answer:

Gekata [30.6K]3 years ago

6 0

I say 34 do not know if it is right

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Please help! The question is in the picture!

Kamila [148]

Answer:

A.

Step-by-step explanation:

Distributive property means (in this case) to multiply what's inside the () by what's outside the (). Therefore, I believe A is the only one that makes sense.

Hope this helps!

5 0

3 years ago

Hello, I'm trying to solve 6x + y = 4, x - 4y = 19. I have found the y but I cant seem to find the x. Plz help and we cant use d

gizmo_the_mogwai [7]

Answer:

$x=\frac{7}{5}$

$y=-\frac{22}{5}$

Step-by-step explanation:

Given:

The given expressions are.

$6x+y=4$

$x-4y=19$

We need to find x and y values.

Solution:

Equation 1⇒ $6x+y=4$

Equation 2⇒ $x-4y=19$

First solve the equation 1 for y.

$6x+y=4$

$y = 4-6x$ --------(3)

Substitute $y = 4-6x$ in equation 2.

$x-4(4-6x)=19$

Simplify.

$x-(4\times 4 - 4\times 6x)=19$

$x-(16-24x)=19$

$x-16+24x=19$

Add 16 both side of the equation.

$25x-16+16=19+16$

$25x=35$

$x=\frac{35}{25}$

Divide Numerator and denominator by 5.

$x=\frac{7}{5}$

Substitute x value in equation 3 and simplify.

$y=4-6(\frac{7}{5})$

$y=4-\frac{6\times 7}{5}$

$y=4-\frac{42}{5}$

$y=\frac{5\times 4-42}{5}$

$y=\frac{20-42}{5}$

$y=-\frac{22}{5}$ .

Therefore, the value of $x=\frac{7}{5}$ and $y=-\frac{22}{5}$ .

6 0

3 years ago

Round 34.6352 to the nearest hundredth.

Bad White [126]

Answer:

34.64

Step-by-step explanation:

<u>Step 1: Round to the nearest hundredth</u>

34.6<u>3</u>52

Since the thousandths place is at or above 5, that means we round up the hundredths place.

34.6<u>3</u>52

34.64

Answer: 34.64

4 0

3 years ago

Read 2 more answers

Help please? 10 points. Correctly

Romashka [77]

From the Figure :

Point A is (-3 , -3)

Point B is (6 , 6)

We know that, The Mid Point of Two Points (x₁ , y₁) and (x₂ , y₂) is given by :

$\mathsf{\implies [(\frac{x_1 + x_2}{2})\;,\;(\frac{y_1 + y_2}{2})]}$

$\mathsf{\implies Midpoint\;of\;Line\;AB\;is\;[(\frac{-3 + 6}{2})\;,\;(\frac{-3 + 6}{2})]}$

$\mathsf{\implies Midpoint\;of\;Line\;AB\;is\;[(\frac{3}{2})\;,\;(\frac{3}{2})]}$

$\mathsf{\implies Midpoint\;of\;Line\;AB\;is\;(1.5,1.5)}$

4 0

3 years ago

Hey lol i don't really need help on this cuz i could honestly look it up in the notes, but im lazy.

sertanlavr [38]

Theoretically =theory is potentially done, experimental is experiment XD XD. They both have to do with probability

3 0

2 years ago