3 years ago

HELP ME IM A 6TH GRADER

Mathematics

1 answer:

Marysya12 [62]3 years ago

8 0

Answer:

Its B, C, and D

Step-by-step explanation:

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Subtract. Simplify, if possible.<br> 5/8<br> -<br> * 2 1 / 2 - 3

Nat2105 [25]

$2\frac{1}{2} - \frac{5}{8}$

Convert the mixed number to an improper fraction:

$\frac{5}{2} - \frac{5}{8}$

Subtract the fractions to get your final answer:

$\frac{15}{8}$

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2 years ago

What is the amswer to -4k-2(k-3)=-6k+8

SashulF [63]

Answer:

k = 1/2

Step-by-step explanation:

-4k-2(k)-2(-3)=-6k+8

-4k-2k+6=-6k+8

-2k+6=-6k+8

4k+6=8

4k=2

4k/4= 2/4

k=1/2

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3 years ago

The given amount converted to units?

Alisiya [41]

120 seconds is 2 * 60s
60s is 1 minute, so 2*60s = 2 minutes

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2 years ago

What is the vertex of (x) = –16x² + 64x + 80.

cricket20 [7]

Answer:

Step-by-step explanation:

f(x) = a(x - h)² + k - the vertex form of the equation of the parabola with vertex (h, k)

$f(x) = -16x^2+ 64x + 80\\\\f(x) = -16(x^2- 4x) + 80\\\\f(x) = -16(\underline {x^2-2\cdot2x\cdot2+2^2}-2^2) + 80\\\\f(x) = -16\big[(x-2)^2-4\big] + 80\\\\f(x) = -16(x-2)^2+64 + 80\\\\\bold{f(x)=-16(x-2)^2+124\quad\implies\quad h=2\,,\quad k=124}$

<u>The vertex is </u><u>(2, 124)</u>

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3 years ago

Find the slope of a line passing through the points (5,-5) and (7,3)

mylen [45]

Answer:

The slope of the line passing through the points (5, -5) and (7,3) is 4 . Use the slope formula to find the slope.

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2 years ago