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Alekssandra [29.7K]
3 years ago
5

Which is the value of this expression when a=5 and k=-2? [3^2a^-2]^k [3a^-1]

Mathematics
1 answer:
Alex Ar [27]3 years ago
3 0

Answer:243 /3125

(Decimal: 0.07776)

Step-by-step explanation:((32)(5−2))2(3(5−1))

((32)(5−2))2(3(5−1))

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if a chocolate cake is divided into six equal and each has 280 calories, how many calories are in the whole cake
Contact [7]

Answer:

1680

Step-by-step explanation:

280 x 6 = 1680

3 0
3 years ago
Maria and Nate graphed lines on a coordinate plane. Maria's line is represented by the equation y = -5/6x +8. Nate's line is per
eduard

Answer:

c)   6x - 5y = 15

Step-by-step explanation:

Slope-intercept form of a linear equation:  y=mx+b

(where m is the slope and b is the y-intercept)

Maria's line:  y=-\dfrac{5}{6}x+8

Therefore, the slope of Maria's line is -\frac{5}{6}

If two lines are perpendicular to each other, the product of their slopes will be -1.

Therefore, the slope of Nate's line (m) is:

\begin{aligned}\implies m \times -\dfrac{5}{6} &=-1\\m & =\dfrac{6}{5}\end{aligned}

Therefore, the linear equation of Nate's line is:

y=\dfrac{6}{5}x+b\quad\textsf{(where b is some constant)}

Rearranging this to standard form:

\implies y=\dfrac{6}{5}x+b

\implies 5y=6x+5b

\implies 6x-5y=-5b

Therefore, <u>option c</u> could be an equation for Nate's line.

3 0
3 years ago
!! WILL MARK BRAINLIEST PLZ HELP !!
Luba_88 [7]

Answer:

c

Step-by-step explanation:

.................................

5 0
3 years ago
How many feet are in 24 yards? A. 2 B. 72 C. 288 D. 8
Alinara [238K]
1 yard=3 feet
24 yards=
24 yards=24 times yards=24 times (3feet)=24 times 3 times feet=72 times feet
<span>72 feet is the answer</span>
8 0
4 years ago
Read 2 more answers
6(2y - 1) - 4y<br> i need the algebraic expression
Marina CMI [18]

6(2y - 1) - 4y simplified is 8y-6

5 0
4 years ago
Read 2 more answers
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