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KIM [24]
2 years ago
13

Help me pleaseee please please please

Mathematics
2 answers:
Karo-lina-s [1.5K]2 years ago
8 0

Step-by-step explanation:

it is the second one -4(3_8×)

Gelneren [198K]2 years ago
6 0
It’s the second one. -4(3-8x)
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Find the difference.<br> (-2ab-2a-5) - (6ab+2)
9966 [12]

Answer:

-8ab - 2a - 7

Step-by-step explanation:

Since you're subtracting/adding I like taking away the parentheses which makes the equation: -2ab - 2a - 5 - 6ab - 2

You combine like terms and get:

-8ab - 2a - 7

4 0
3 years ago
Please help me out!! points
riadik2000 [5.3K]

Answer:

Step-by-step explanation:

MP=27, MN=NO=OP=MP/3=27/3=9

LN=MP-2MN

LN=45-2(9)

LN=45-18

LN=27

7 0
3 years ago
Solve the equation 1/2x -5+2/3x=7/6x+4
prohojiy [21]
1/2x -5+2/3x =7/6x+4
First, you need to find the least <span>common </span>denominator between the 3 fractions....
2-3-6 The GCF is 6...
So to get rid of the fractions, multiply the whole equation by 2

6[ 1/2x -5+2/3x =7/6x +4 ]=
3x -30 +4x =7x +24

Now that we got rid of our fractions, we combine like terms...

3x -30 + 4x= 7x + 24
7x -30 = 7x + 24
-30 = 24 is not true

So, there is no solution

Hope this helps Nic
If you have seen this method in school before....
Maybe this will seem familiar
Good Luck!<span />
7 0
3 years ago
For a sample of n = 30 scores, a score that is 6 points above the mean has a z-score of z = 1.50. What is the sample standard de
sleet_krkn [62]

Answer:

4

Step-by-step explanation:

The z-score is calculated by the following formula

z=(x-μ)/σ

where

μ=Population mean

σ=Population standard deviation

If the z-score for a specific sample mean is discussed then z-score is computed as

z=xbar-μ/σxbar.

where

μ=Population mean

σxbar=Sample standard deviation

As the population mean and mean of sampling distribution of mean are equal so, μ is used in above equation.

Now, the z-score is given

1.5=xbar-μ/σxbar

σxbar=xbar-μ/1.5.

Also we know that z-score corresponds to a score that is 6 points above mean which means that xbar-μ=6.

σxbar=6/1.5

σxbar=4.

Thus, the required sample standard deviation is 4.

6 0
3 years ago
You buy lunch for guests at a party. You can spend no more than $100. You will spend $20 on beverages and $10 per guest on sandw
solmaris [256]
You can invite 2 people+ you so that would be 3 people.So 1 bevrage and one sandwitch each person and you have 10$ tip
5 0
3 years ago
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