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MrRa [10]
3 years ago
5

Help!!! Fast!!!!!!!!!!

Mathematics
2 answers:
Furkat [3]3 years ago
8 0
√9=3

√64=8

√=10

3 √729=9
3 √343=7

3√216=6
Hope this helped. If it did I would appreciate it if you could give me brainliest
prohojiy [21]3 years ago
6 0
Daaaaaaaaaaaaamn that’s a lot of math
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A hiker at the top of a mountain spots his car back in the parking lot at the
mart [117]
<h2>Answer:</h2><h2>The angle of depression from the hiker to his car, Θ = 56.39 degrees</h2>

Step-by-step explanation:

A hiker at the top of a mountain spots his car back in the parking lot at the

bottom of the trail.  If the trail is 632 meters long and the mountain is 420

meters tall,

opposite side = 632 m

adjacent side = 420 m

Angle of depression, Θ = arctan (\frac{opposite}{adjacent} )

= arctan (\frac{632}{420} )

Θ = 56.39 degrees

3 0
3 years ago
Simplif the expression -3 ÷ (- 2/5)
kati45 [8]

Answer:

15/2

Step-by-step explanation:

6 0
3 years ago
1.
beks73 [17]
The commutative property of addition means the order of the addends doesn't matter; we get the same sum.  In symbols

a+b = b+a

<span>11 + 7 = 7 + 11, choice B, is a good illustration of commutativity.

The next part asks us to use the commutative property.  Looking at the choices, we see it's not the commutative property of addition we're to use, it's the commutative property of multiplication.  Let's write that generally first:

</span>ab = ba

Applying that, <span>(4 + 7) * 3 = 3*(4+7), again choice B.
</span>
3 0
3 years ago
Merritt is driving to mount Shasta. On her map, she is a distance of 7.75 inches away. The scale on the map is .5 inch = 50 Mile
amm1812
193.75 miles cause 7.75 * .5 = 3.875 and 3.875* 50 = 193.75
6 0
3 years ago
Please help me find the area of shaded region and step by step​
Bumek [7]

Answer:

Part 1) A=60\ ft^2

Part 2) A=80\ cm^2

Part 3) A=96\ m^2

Part 4) A=144\ cm^2

Part 5) A=9\ m^2

Part 6) A=(49\pi -33)\ in^2

Step-by-step explanation:

Part 1) we know that

The shaded region is equal to the area of the complete rectangle minus the area of the interior rectangle

The area of rectangle is equal to

A=bh

where

b is the base of rectangle

h is the height of rectangle

so

A=(12)(7)-(8)(3)

A=84-24

A=60\ ft^2

Part 2) we know that

The shaded region is equal to the area of the complete rectangle minus the area of the interior square

The area of square is equal to

A=b^2

where

b is the length side of the square

so

A=(12)(8)-(4^2)

A=96-16

A=80\ cm^2

Part 3) we know that

The area of the shaded region is equal to the area of four rectangles plus the area of one square

so

A=4(4)(5)+(4^2)

A=80+16

A=96\ m^2

Part 4) we know that

The shaded region is equal to the area of the complete square minus the area of the interior square

so

A=(15^2)-(9^2)

A=225-81

A=144\ cm^2

Part 5) we know that

The area of the shaded region is equal to the area of triangle minus the area of rectangle

The area of triangle is equal to

A=\frac{1}{2}(b)(h)

where

b is the base of triangle

h is the height of triangle

so

A=\frac{1}{2}(6)(7)-(6)(2)

A=21-12

A=9\ m^2

Part 6) we know that

The area of the shaded region is equal to the area of the circle minus the area of rectangle

The area of the circle is equal to

A=\pi r^{2}

where

r is the radius of the circle

so

A=\pi (7^2)-(3)(11)

A=(49\pi -33)\ in^2

7 0
3 years ago
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