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Andrew [12]
2 years ago
10

Part A Rewrite 0.5 as an exponential expression with a base of 2.

Mathematics
1 answer:
koban [17]2 years ago
4 0

Answer:

2^{-1}

Explanation:

05/10

Simplifying

1/2

or 2^-1

Hope this helps you. Do mark me as brainlist

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Name two different numbers that round to 30 when rounded to the nearest 10
Ne4ueva [31]
39 and 36. both of them rounded to the nearest 10 is 30
4 0
3 years ago
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HELP ME ?
julsineya [31]

1.\sqrt{11} is less than 3.5

2. \sqrt{5} is more than 2.1

3. -5.3 is more than -5 \frac{3}{5}

4. \frac{8}{10} is less than 0.8 repeating

7 0
3 years ago
Help pls im being timed
Nitella [24]

The trigonometric ratios show that the angle FHE is 48.59°.

<h3>RIGHT TRIANGLE</h3>

A triangle is classified as a right triangle when it presents one of your angles equal to 90º.  The greatest side of a right triangle is called hypotenuse. And, the other two sides are called cathetus or legs.

The math tools applied for finding angles or sides in a right triangle are the trigonometric ratios or the Pythagorean Theorem.

The Pythagorean Theorem says: (hypothenuse)^2=(leg_1)^2+(leg_2)^2. And the main trigonometric ratios are:

sin(\alpha) =\frac{opposite \;leg }{hypotenuse} \\ \\ cos(\alpha) =\frac{adjacent\;leg }{hypotenuse} \\ \\ tan(\alpha) =\frac{sin(\alpha )}{cos(\alpha )}= \frac{opposite \;leg }{adjacent\;leg } \\ \\

It is important to remember that the sum of internal angles for any triangle is 180°.

From the question, it is possible to see 2 right triangles (HGF and FHE).

You can find the hypotenuse of the triangle HGF from the  trigonometric ratio: sen Θ

sin45=\frac{opposite\; leg }{hypotenuse} =\frac{\sqrt8}{hypotenuse}\\ \\ \frac{\sqrt{2} }{2} =\frac{\sqrt{8} }{hypotenuse} \\ \\ \sqrt{2}*hypotenuse=2\sqrt{8} \\ \\ hypotenuse=\frac{2\sqrt{8} }{\sqrt{2}} =2\sqrt{4} =2*2=4

The hypotenuse of triangle HGF is one of legs for the triangle FHE. The, you can find the angle FHE from the  trigonometric ratio: tan β. Thus,

sin \beta =\frac{opposite\; leg }{adjacent\; leg} =\frac{3}{4}\\ \\ sin \beta=\frac{3}{4}=0.84806\\ \\ arcsin\beta =48.59^{\circ \:}

Learn more about trigonometric ratios here:

brainly.com/question/11967894

#SPJ1

7 0
2 years ago
Evaluate 4 + (m - n) <br><br> When m = 7 and n = 5.
ziro4ka [17]
1. substitute:
4+(7-5)
2. simplify:
4+2
3. evaluate:
6
the answer is 6.

4 0
2 years ago
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7.35m3 4.2 m long 50 cm deep width
rosijanka [135]
Volume=lwh

So if 7.35 m^3 is the volume, divide it by (4.2x0.5) (50 cm=0.5 m)

7.35/2.1=3.5

So the missing value, or width, is 3.5 meters
8 0
3 years ago
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