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Valentin [98]
3 years ago
15

I'd GIVE BRAINLY

Mathematics
1 answer:
kvasek [131]3 years ago
8 0

Answer:

one and three ninths tarts.

Step-by-step explanation:

7/9+5/9=12/9. Convert to a mixed number so subtract 9 from 12. 1 3/9

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f(x)=4x^3-5

Step-by-step explanation:

7 0
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Perpendicular to the line 2x-5y=-11; passes through (7,5)
Westkost [7]

Answer:

y=-\frac{5}{2}x+\frac{45}{2}

Step-by-step explanation:

The slope intercept form of a line is given as:

y = mx + c

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Let's rearrange the equation given in this form:

2x - 5y = -11

5y = 2x + 11

y = 2/5 x + 11/5

So the slope is 2/5

Slope of line that is perpendicular to this is the "negative reciprocal" of this slope. Which means the slope of perpendicular line would be  -5/2

Thus, equation would become:  y = -5/2x + c

Now we need to find c. For this we plug in 7 into x and 5 into y and solve for c [(7,5) is the point given]. Thus,

y=-\frac{5}{2}x+c\\5=-\frac{5}{2}(7)+c\\5=-\frac{35}{2}+c\\c=5+\frac{35}{2}\\c=\frac{45}{2}

Thus, the equation of perpendicular line is:

y=-\frac{5}{2}x+\frac{45}{2}

8 0
4 years ago
What is this half circles radius and how do you find it?
mr Goodwill [35]

Answer:

The radius of the semicircle is 4 cm

Step-by-step explanation:

The diameter of the semicircle is 8 cm

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The radius of the semicircle is 4 cm

6 0
3 years ago
Read 2 more answers
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