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hram777 [196]
3 years ago
7

X + y = 7 graph each linear equation

Mathematics
1 answer:
amm18123 years ago
3 0

<u><em>Answer:</em></u>

<u><em>y = 7 - x</em></u>

<u><em>x = 7 - y</em></u>

<u><em>Hope this helps:3</em></u>

<u><em></em></u>

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Use the distributive property to remove the parentheses.
erik [133]

Divide each term in  

4

x

=

7

by  

4

.

4

x

4

=

7

4

Cancel the common factor of  

4

.

Tap for more steps...

x

=

7

4

The result can be shown in multiple forms.

Exact Form:

x

=

7

4

Decimal Form:

x

=

1.75

Mixed Number Form:

x

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1

3

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5 0
2 years ago
-6/7 graph on the number line
avanturin [10]
That would be in the II quadrant
So across to negative 6 and up to 7 is your coordinate
5 0
3 years ago
The proportion of junior executives leaving large manufacturing companies within three years is to be estimated within 3 percent
Leona [35]

Answer: 709

Step-by-step explanation:

The formulas we use to find the required sample size :-

1. n=(\dfrac{z^*\cdot \sigma}{E})^2

, where \sigma = population standard deviation,

E = Margin of error .

z* = Critical value

2. n=p(1-p)(\dfrac{z^*}{E})^2 , where p= prior estimate of population proportion.

3. If prior estimate of population proportion is unavailable , then we take p= 0.5 and the formula becomes

n=0.25(\dfrac{z^*}{E})^2

Given : Margin of error : E= 3% =0.03

Critical value for 95% confidence interval = z*= 1.96

A study conducted several years ago revealed that the percent of junior executives leaving within three years was 21%.

i.e. p=0.21

Then by formula 2., the required sample size will be :

n=0.21(1-0.21)(\dfrac{1.96}{0.03})^2

n=0.21(0.79)(65.3333)^2

n=(0.1659)(4268.44008889)\\\\ n=708.134933333\approx709 [Round to the next integer.]

Hence, the required sample size of junior executives should be studied = 709

4 0
3 years ago
I need help now it’s an iready
schepotkina [342]

answer:

21 + 3x (you would not put the x again since it is already given)

step-by-step explanation:

  • we have to distribute 3 to the expression in the parenthesis

3 (7 + x)

= 21 + 3x

  • this will be the expression once we distribute
3 0
2 years ago
I need to know what r equals ?
kifflom [539]
It is radius! Hope this helps!! :)
6 0
3 years ago
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