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4 years ago

5

Rational number arithmatic

2 answers:

adoni [48]4 years ago

7 0

Answer:

A and D are the ones that are right

Blizzard [7]4 years ago

4 0

Answer:

a and d

Step-by-step explanation:

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Find the area of the shaded portion in the equilateral triangle with sides 6.

LUCKY_DIMON [66]

Triangle is equilateral with sides of 6.
Therefore all angles = 60°
Ht of 30-60-90 is 3sr3 = 5.196
Area of 30-60-90 = 1/2×b×h = 3×5.196
Area = 15.59
Pie slice from each corner = 60/360×pi×r^2, with r = 3
1/6×pi×9 = 4.71 × 3 pie slices = 14.13
So, shaded inner region = area triangle - 3 pie corners = 15.59-14.13
= 1.46

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3 years ago

Find the percent of increase from 15 to 20

ANEK [815]

I think it might be 25%

8 0

3 years ago

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Evaluate the expression if r = 12 and t = -6.<br> (t-r)/3

Lynna [10]

Answer:

-6

Step-by-step explanation:

$\frac{(t-r)}{3}$

input the numbers

$\frac{(-6-12)}{3}$

do the problem in the parentheses first

-6-12 = -18

now it becomes

$-\frac{18}{3}$

simplify and you'll get

-6

this is because -18 ÷ 3 =

-6

4 0

3 years ago

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Please help me with this!!!

krok68 [10]

Answer:

the answer is A because if it is raised to the power greater than one and is added it will be greater than1

3 0

4 years ago

A triangle has vertices at B(-3,0), C(2, -1), D(-1,2). Which series of transformations would produce an image with vertices B"(4

Alik [6]

Answer:

(b) (x, y) ⇒ (-x, y); (x, y) ⇒ (x + 1, y + 1)

Step-by-step explanation:

A graph shows the image is consistent with reflection over the y-axis

(x, y) ⇒ (-x, y)

and translation right 1, up 1

(x, y) ⇒ (x +1, y +1)

These transformations are listed in the second choice.

__

In the attachment, the original image is blue, the reflected image is purple, and the final translated image is red.

4 0

3 years ago