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2 years ago

Explain how to model 32% on a 10-by-10 grid. How does the model represent ratio of 32 to 100.

Mathematics

1 answer:

pantera1 [17]2 years ago

4 0

To model 32%, you would just color in 32 out of 100 blocks. It represents the ratio because out of 100 blocks, 32 are shaded.

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Simplify the expression 34÷(−23)+0.5 . Write in simplest form.

denpristay [2]

Answer:

-0.97 or -97/100

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2 years ago

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Complete the equation of the line through (-9,7) & (-6,-3)

scZoUnD [109]

Answer:

$y=-\frac{10}{3}x-23$

Step-by-step explanation:

we have the points

(-9,7) and (-6,-3)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{-3-7}{-6+9}$

$m=-\frac{10}{3}$

step 2

Find the equation in point slope form

$y-y1=m(x-x1)$

we have

$m=-\frac{10}{3}$

$(x1,y1)=(-6,-3)$

substitute

$y+3=-\frac{10}{3}(x+6)$ ---> equation in point slope form

step 3

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$y+3=-\frac{10}{3}(x+6)$

Isolate the variable y

Distribute right side

$y+3=-\frac{10}{3}x-20$

subtract 3 both sides

$y=-\frac{10}{3}x-20-3$

$y=-\frac{10}{3}x-23$

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2 years ago

1/3x² + x+5/3x² = 1/9<br><br>HAHAHAHA......

mr_godi [17]

Answer:

Now, 3x 2+x+5⩾0

This is because b² −4ac=1−4×5×3

=−59 (roots are imaginary)

3x²+x+5=(x−3)² =x²+9−6x and x−3⩾0

2x²+7x−4=0

2x²+8x−x−4=0

2x(x+4)−1(x+4)=0

(2x−1)(x+4)=0

x= 1/2 and−4 but x≥3

∴ No solution.

lol hehehe

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Marrrta [24]

Answer:

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Step-by-step explanation:

as i guess i think haha

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The length of a rectangle is 4 inches longer than it is wide. If the area is 60 square inches, what are the dimensions of the re

Ainat [17]

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