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3 years ago

Ype the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

Mathematics

1 answer:

kondor19780726 [428]3 years ago

5 0

Answer:

-1,487.9

Step-by-step explanation:

Subtract 215.5 from -1,275.5.

-1,491

then add 125.5 to -1,491.

-1,365.5

finally, subtract 122.4 from -1,365.5.

-1,487.9

Essentially, you are starting at 1,275.5 feet below sea level, which makes it negative.

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If 62% of customers prefer low cholesterol bacon, what number of degrees on a pie chart would be used to represent this?

Natalija [7]

62% of 360° = 0.62*360° = 223.2°

8 0

3 years ago

Find the value of c that makes each trinomial a perfect square. x^2+5x+c

fredd [130]

Answer:

25/4

Step-by-step explanation:

x² + 5x + c

x² + 2(x)(5/2) + (5/2)²

(5/2)² = 25/4 or 6¼

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3 years ago

You are a nascar fan that collects cars that are 1:64 scale to the original car. if your collection has cars that ar 3 inches in

Nitella [24]

The scale is 1:64.

Therefore if the length of the model is 3 inches, the true length of the vehicle is
3 * 64 = 192 inches = 192/12 ft = 16 ft

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3 0

3 years ago

Read 2 more answers

Which of the following is the missing justification?

Montano1993 [528]

Answer:

B and C

2. B Multiplication property of equality

3. C Distributive Property

Step-by-step explanation:

1. Given

$\dfrac{1}{5}\cdot x+6=5$

2. Multiply this equation by 5:

$\left(\dfrac{1}{5}\cdot x+6\right)\cdot 5=5\cdot 5$

Multiplication property of equality

3. Use distributive property of equality:

$\dfrac{1}{5}\cdot x\cdot 5+6\cdot 5=25\\ \\x+30=25$

4. Subtract 30:

$x+30-30=25-30\\ \\x=-5$

Subtraction property of equality.

7 0

3 years ago

Read 2 more answers

I need help on two questions!

Inessa05 [86]

1) Answer: $\frac{x^{2}}{100} +\frac{y^{2}}{4} = 1$

Explanation:

The equation of an ellipse is: $\frac{(x-h)^{2}}{a^{2}} +\frac{(y-k)^{2}}{b^{2}} = 1$ ; where (h, k) is the center, "a" is the x-radius, and "b" is the y-radius.

Center Radius

x-axis: (10 + -10)/2 = 0 10 - 0 = 10

h = 0 a = 10

y-axis: (2 + -2)/2 = 0 2 - 0 = 2

k = 0 b = 2

Now, input the values into the equation:

$\frac{(x-0)^{2}}{10^{2}} +\frac{(y-0)^{2}}{2^{2}} = 1$

$\frac{x^{2}}{100} +\frac{y^{2}}{4} = 1$

************************************************************************

2) Answer: $\frac{x^{2}}{1} +\frac{(y+2)^{2}}{4} = 1$

Explanation:

Vertices are: (0, 1) and (0, -5) ------> x-values are the same, y = 1, -5

Covertices are: (-1, -2) and (1, -2) ----> y-values are the same, x = -1, 1

Center Radius

x-axis: (-1 + 1)/2 = 0 1 - 0 = 1

h = 0 a = 1

y-axis: (1 + -5)/2 = -2 1 - (-2) = 3

k = -2 b = 3

Now, input the values into the equation:

$\frac{(x-h)^{2}}{a^{2}} +\frac{(y-k)^{2}}{b^{2}} = 1$

$\frac{(x-0)^{2}}{1^{2}} +\frac{(y-(-2))^{2}}{3^{2}} = 1$

$\frac{x^{2}}{1} +\frac{(y+2)^{2}}{9} = 1$

3 0

4 years ago