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2 years ago

What percentage of the blocks is shaded in the picture?

Mathematics

1 answer:

emmasim [6.3K]2 years ago

7 0

Hello! So the blocks are lined up in rows of 8. When you count the number of rows, there are 10 of them. 3 rows of 8 blocks are shaded out of 10 of them. That's 24 blocks shaded out of 80, because 8 * 10 is 80, and 3 * 8 is 24. Let's divide. 24/80 is 0.3.Let's multiply that by 100 to get it in percent form. 0.3 * 100 is 30. There. 30% of blocks are shaded in the picture.

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Write in logarithmic form.<br> 729 = 9^3

kolezko [41]

Answer:

Step-by-step explanation:

729 = 9³

by definition

$a = b^{c}$ can be written as $log_{b} a = c$

by the same reasoning

$729 = 9^{3}$ can be written as $log_{9} 729 = 3$

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2 years ago

10 times as much as 6,000 is 1/10 of?

egoroff_w [7]

Answer:

10 x 6,000 is 60,000. now divide it by ten. its 6,000 because its 1/10 of it so yes, 6,000

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2 years ago

which statements about the graph of the function f(x) = –x2 – 4x 2 are true? check all that apply. the domain is {x|x ≤ –2}. the

Evgen [1.6K]

we have that

$f(x) = -x^{2} - 4x+ 2$

using a graph tool

see the attached figure

statements

case a) The domain is {x|x ≤ –2}-------> Is False

the domain is all real numbers---------> the interval (-∞,∞)

case b) The range is {y|y ≤ 6}.------> Is True

The range is the interval (-∞,6]

case c) The function is increasing over the interval (–∞ , –2).-----> Is True

See the attached figure

case d)The function is decreasing over the interval (−4, ∞).-----> Is False

In the interval (-4,-2) the function is increasing and in the interval (-2,∞) the function is decreasing (See the attached figure)

case e)The function has a positive y-intercept.------> Is True

The value of y-intercept is $2$

5 0

3 years ago

Read 2 more answers

QUESTION AND ANSWER IN IMAGE!

eduard

That would be Graph C

The solution is where the 2 graphs intersect At A and B.
x + y + 2 = 0 transforms to y = -x - 2 which has slope -1 and y-intercept of -2
as in Graph C.

8 0

3 years ago

Complete the equation of the line through 2,1 and 5,-8

Neko [114]

Answer:

y - 1 = -3(x - 2)

Step-by-step explanation:

As we move from the point (2, 1) to the point (5, -8), x (the run) increases by 3 and y (the rise) decreases by 9. Thus, the slope of this line is

m = rise / run = -9/3, or m = -3.

Then the equation of the line (in point-slope form) is

y - 1 = -3(x - 2)

3 0

3 years ago

Read 2 more answers