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Sphinxa [80]
3 years ago
11

Evaluate -15a (-3) for a= 2 and b=-3 A.) 5/24 B.) -5/24 C.) -1080 D.) -40/3

Mathematics
1 answer:
zloy xaker [14]3 years ago
4 0
Hhjhhhu did I need ooo 40
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Which expression is equivalent to...
torisob [31]

Answer:

x^{\frac{2}{7} } y^{-\frac{3}{5} } \\  i.e answer A.

Step-by-step explanation:

This question involves knowing the following power/exponent rule:

\sqrt[n]{x^m} = x^\frac{m}{n} \\\\so \sqrt[7]{x^2} = x^\frac{2}{7} \\\\and  \\\\ \sqrt[5]{y^3} = y^\frac{3}{5} \\

Next, when a power is on the bottom of a fraction, if we want to move it to the top, this makes the power become negative.

so the y-term, when moved to the top of the fraction, becomes:

y^{-\frac{3}{5} } \\

So the answer is: x^{\frac{2}{7} } y^{-\frac{3}{5} } \\

7 0
2 years ago
Sarah has 5 peppermints. Chase has p fewer peppermints than Sarah. Write an expression that shows how many peppermints Chase has
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5-p i think? How many peppermints are there in actual?
6 0
2 years ago
Which the parabola opens,
Dmitrij [34]

Table (A) represents the parabola y = x² - 6x in which the parabola opens and the y-intercept is (0, 0) table (A) is the correct choice.

<h3>What is a parabola?</h3>

It is defined as the graph of a quadratic function that has something bowl-shaped.

We have the tables shown in the picture.

We know the quadratic form of a parabola is:

y = ax² + bx + c

If a > 0 the parabola opens

In the equation:

y = x² - 6x

1 > 0 the parabola opens and y-intercept is:

y = 0 (plug x = 0 in the given equation)

a = 1, b = -6, and c = 0

Thus, table (A) represents the parabola y = x² - 6x in which the parabola opens and the y-intercept is (0, 0) table (A) is the correct choice.

Learn more about the parabola here:

brainly.com/question/8708520

#SPJ1

8 0
2 years ago
Which BEST describes the difference between the medians of boys and girls as a multiple of the interquartile range for the boys.
rusak2 [61]

Answer:

B)  7\8

Step-by-step explanation:

Boy interquartile range = 4

Difference between medians = 3.5

therefore,  

3.5 \4 = 7\8

5 0
3 years ago
Find the surface area ​
Helen [10]
We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area. Hope this helps!
3 0
3 years ago
Read 2 more answers
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