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IgorC [24]
3 years ago
5

Is 12 a prime or composite number? And why?.

Mathematics
2 answers:
KonstantinChe [14]3 years ago
7 0
12 is decided by 2 and 3 so it’s not prime
Brut [27]3 years ago
7 0

Answer:

Composite

Step-by-step explanation:

Cant be prime cause it's an even number (not 2)


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Please answer question 18 using the information above.
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Third and forth.

Step-by-step explanation:

Marks up mean increasing the price.

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3 years ago
You have an equation y=x+7. Is the ordered pair (1,6) a solution? Yes or no?
vaieri [72.5K]
Answer:
no

step-by-step explanation:
y=x+7
x is the slope of 1
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because 7 is the y-intercept and the slope is positive it never touches (1,6)
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3 years ago
The sum of a number times 4 and 18 is at least 25
dmitriy555 [2]
Divide each term by 4+8 and simplify.
x<span>≥25/12

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3 years ago
Find the equation of the line using the point-slope formula. Write the final equation using slope-intercept form. (1,2) with a s
Lilit [14]

Answer:

y-2=\displaystyle -\frac{3}{4}(x-1)

OR

y=\displaystyle -\frac{3}{4}x+\frac{11}{4}

Step-by-step explanation:

Hi there!

Point-slope form: y-y_1=m(x-x_1) where <em>m</em> is the slope of the line and (x_1,y_1) is a given point

Given that the slope is -3/4, we can plug it into y-y_1=m(x-x_1) as <em>m</em>:

y-y_1=\displaystyle -\frac{3}{4}(x-x_1)

We can also plug in the given point (1,2):

y-2=\displaystyle -\frac{3}{4}(x-1)

Slope-intercept form: y=mx+b where <em>m</em> is the slope and <em>b</em> is the y-intercept (the value of y when the line crosses the y-axis)

To write the equation in slope-intercept form, isolate <em>y</em>:

y-2=\displaystyle -\frac{3}{4}(x-1)\\\\y=\displaystyle -\frac{3}{4}(x-1)+2\\\\y=\displaystyle -\frac{3}{4}x+\frac{3}{4}+2\\\\y=\displaystyle -\frac{3}{4}x+\frac{11}{4}

I hope this helps!

8 0
2 years ago
Which point is on the line of the equation y-4 = -1/2 (x - 2) ?
Gennadij [26K]

Answer:

4.0148 rounded to the nearest thousand is 0, but if you meant rounded to the nearest thousandth, it would be 4.015 because the 8 in the ten thousandth column would cause the 4 in the thousandth column to round up to 5.

Step-by-step explanation:

8 0
3 years ago
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