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True [87]
3 years ago
7

Is this correct?? I need help!!!

Mathematics
2 answers:
Allisa [31]3 years ago
8 0
Yes it is correct :)!
Karolina [17]3 years ago
5 0
Yes it is indeed correct!!
You might be interested in
What two numbers are added together and equal -8.
Anastasy [175]

Answer: You might need to be more descriptive, there's a lot of numbers that could be added together to equal -8.

-4 + -4 = -8.

-6 + -2 = -8.

etc.

4 0
3 years ago
Read 2 more answers
I have a few Algebra problems that I have no clue how to solve. Help would be greatly appreciated!
DENIUS [597]

I'm just going to number all of the problems so life get's easier. :D

JSYK: A negative and a negative multiplied make a positive. Like that... a + and a + is +. And a + and a - is a - .


1) 37= -3+5(k+6)

1. Use Distributive Property to take out the parentheses. Positive 5 times k and then 5 times 6... 37=-3+5k+30. 2. Take all the normal number to either side of the equal sign. 37-3-30=5k 3. Subtract all the numbers on the left side.... 4=5k 4. Now divide both sides by 5 to isolate <em>k</em>.... k=[tex] \frac{4}{5} [/text] ----------------------------------------------------------------------------------------------- 2) -2= -(w-8)

1. Use Distributive Property to take out the parentheses. "Distribute the negative sign... -2= -w+8 2. Put the -w to the left side and the -2 to the right side, so that the variable won't be negative... w= 2+8 3. Add everything on the right side... w= 10 ----------------------------------------------------------------------------------- 3) 42= 8x+13x

1. Since both of the numbers have the same variables (in this case, x), add them up... 42=21x 2. Divide each side by 21 to isolate <em>x</em>... x=42 ------------------------------------------------------------------------------------ 4) 8= 8c-4(c+8)

1. Use Distributive Property. Multiply <em>negative</em> 4 with c and 8... 8=8c-4c-32 2. On the right side, 8 and 4 both have the same variable, <em>c </em>, solve it!...8=4c-32 3. Put -32 to the left side... 8+32=4c 4. Add on the left... 40=4c 5. Divide both sides by 4 to isolate <em>c</em>... c=10 ------------------------------------------------------------------------------------- 5) -11-5z= 6(5z+4) 1. Use Distributive Property; multiply positive 6 with 5z and 4... -11-5z=30z+24 2. Bring -5z to the right and positive 24 to the left... -11-24= 30z+5z 3. Subtract the integers on the left and add the numbers with same variable on the right... -35=35z 4. Divide both sides by 35 to isolate <em>z</em>... z= -1 ----------------------------------------------------------------------------- 6) 0= -5y-2y

1. Subtract the negative number with the same variable, <em>y</em> ... 0= -7y 2. Divide both sides by -7, to isolate <em>y</em>... y=0

And for the last two, I don't know either... my apologies! I hope my answers help! :D

8 0
4 years ago
If a population proportion is believed to be​ 0.6, how many items must be sampled to ensure that the sampling distribution of Mo
user100 [1]

Answer:

<em>The answer is 5</em>

Step-by-step explanation:

<em>From the question given,   we have to make reference to what we already know.</em>

<em>Recall that,  for normality assumptions np and nq values need to be greater than or equal to 5.</em>

<em>Hence,</em>

<em>P = 0.6, where p = population proportion </em>

<em>q = 1 – p=</em>

<em>1 – 0.6 = 0.4</em>

<em>n = 13</em>

<em>thus,</em>

<em>np = 13 x 0.6 = 7.8 > 5</em>

<em>Therefore,</em>

<em>nq = 13 x 0.6 = 5.2 > 5</em>

5 0
3 years ago
Read 2 more answers
what is the length of a picture frame whose width is 3 inches and whose proportions are the same as as a 9-inch wide by 15-inch
forsale [732]

Answer:

5"

Step-by-step explanation:

Set this up as a proportion: 3 is your constant of proportionality

3 / 5

9 / 15

3/5 x 3/3 = 9/15

3 0
4 years ago
This is graphing linear equations. I'm very confused on the m part
Leona [35]
In the slope intercept form equation, y =mx+b, m is the slope, or the coefficient of x.
Therefore, the slope, or m, in this situation is -2/3.
Hope this helps!
3 0
3 years ago
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