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Arturiano [62]
2 years ago
15

I NEED NUMBER 4 PLEEEEEASE

Mathematics
1 answer:
german2 years ago
8 0
Find the area of the first dish: since it's a square multiply the side by the side: 8•8=64. Find the area of the second dish: 9•9=81. Now subtract the first one for the second one: 81-64=17 square inches :)
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Which improper fraction is represented by the model?<br> 12 / 4<br> 10 / 3<br> 12 / 3
Ksivusya [100]

Answer:

\frac{10}{3}

Step-by-step explanation:

each circle is composed of 3 sectors

The first 3 are completely shaded representing 3 + 3 + 3 = 9 sectors

the last one has 1 sector of 3 shaded representing  1 sector

sectors shaded = 9 + 1 = 10

improper fraction is then \frac{10}{3}

3 0
2 years ago
The mean of a set of data is -3.82 and its standard deviation is 2.31. Find the z score for a value of 3.99.
gtnhenbr [62]

Answer:

The z- score for a value of 3.99 will be 3.38.

Step-by-step explanation:

It is given that the mean of a set of data is -3.82 and its standard deviation is 2.31.

Thus, the value of the z-score=\frac{value-mean}{standarddeviation}

=\frac{3.99-(-3.82)}{2.31}

=\frac{3.99+3.82}{2.31}

=\frac{7.81}{2.31}

=3.38

Thus, the z- score for a value of 3.99 will be 3.38.

6 0
2 years ago
Given 3x &lt;-6 find the solution set
ivanzaharov [21]

3x <-6

divide each side by 3

x < -2

5 0
3 years ago
Select the correct answer.<br> What are the roots of 12x = 9 + 5x2?
Lorico [155]

Answer:

12x=9+5x^{2}

12x=9+5x2

Step-by-step explanation:

5 0
2 years ago
Write an equation for a line perpendicular to y = 2 x + 4 and passing through the point ( − 2 , 3 ) . Express your answer in slo
aleksklad [387]

Answer:

y = -1/2x + 2

Step-by-step explanation:

A perpendicular line will have a opposite reciprocal slope.

Since the line's slope is 2, the perpendicular line will have a slope of -1/2

Plug in the slope and given point into y = mx + b, and solve for b

y = mx + b

3 = -1/2(-2) + b

3 = 1 + b

2 = b

Plug in the slope and b into y = mx + b

y = -1/2x + 2

So, the equation is y = -1/2x + 2

3 0
2 years ago
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