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3 years ago

How do you subtract 4/5 from 0.3

Mathematics

2 answers:

kompoz [17]3 years ago

6 0

Question

How do you subtract 4/5 from 0.3?

Answer:

Step-by-step explanation:

0.3 = 3/10 ( 3 : 10 = 0.3)

3/10 - 4/5 = -0.5

0.3 - 0.8 = -0.5 (4/5 = 0.8)

0.5 = 1/2

so your answer is -0.5 or -1/2

fiasKO [112]3 years ago

3 0

Answer:

0.3 - 4/5 = -0.5

Step-by-step explanation:

4/5 from 0.3

to subtract 4/5 from 0.3, we have to convert 4/5 to decimal fraction

i.e 4/5=0.8

∴ 0.3-0.8= -0.5

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Perform indicated operations for function: f(x)=x^2+1 use in f(x+h)-f(x)/h

8090 [49]

For $f(x+h) - \dfrac{f(x)}{h}$ reading the fraction like f(x)/h only (f(x+h) start fraction f(x) / h end fraction), the answer is $-x^2/y + x^2 + 2x + y + y^2 - 1/y + 1$

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3 years ago

Jethro used dimensional analysis to convert one rate of speed to another. Two of the conversion factors he used are 5280 ft/1 mi

NNADVOKAT [17]

The units of the initial and final rates of speed are;

Initial rate of Speed = ft/hr

Final rate of speed = mi/min

We are told that the conversion factors he used are;

5280 ft/1 mi and 1 hr/60 min

Now, the meaning of 5280 ft/1 mi denotes that;

5280 ft mile is equivalent to 1 mile

This means that the initial distance unit used was ft while the final one was mile

Also, 1 hr/60 min denotes that;

1 hour is equivalent to 60 minutes.

This means that the initial time units used was hour while the final one was minute.

In conclusion, since we know the initial time and distance units used, we can say that the initial rate of speed ft/hr while final speed rate was miles/minutes.

Read more at; brainly.com/question/17734333

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3 years ago

A ball is tossed between three friends. The first toss is 8.6 feet, the second is 5.8 feet, and the third toss is 7.5 feet, whic

Rainbow [258]

angles formed by these tosses are $79.45, 59.02$ and $41.53$ degrees to the nearest hundredth.

Step-by-step explanation:

Here , We have a triangle with sides of length 8.6 feet, 5.8 feet and 7.5 feet.

The Law of Cosines (also called the Cosine Rule) says:

$c^2 = a^2 + b^2 - 2ab (cosx)$

Using the Cosine Rule to find the measure of the angle opposite the side of length 8.6 feet:

⇒ $c^2 = a^2 + b^2 - 2ab (cosx)$

⇒ $c^2 -a^2 - b^2 = -2ab (cosx)$

⇒ $(cosx) =\frac{ c^2 -a^2 - b^2}{ -2ab}$

⇒ $(cosx) =\frac{(8.6^2 - 5.8^2 - 7.5^2)}{ ( -2(5.8)7.5)}$

⇒ $(cosx) =0.18310$

⇒ $cos^{-1}(cosx) = cos^{-1}(0.18310)$

⇒ $x = 79.45$

The Law of Sines (or Sine Rule) is very useful for solving triangles:

$\frac{a}{sin A} = \frac{ b}{sin B} = \frac{c}{sin C}$

We can now find another angle using the sine rule:

⇒ $\frac{ 8.6 }{ sin 79.45} = \frac{7.5}{ sin Y}$

⇒ $sin Y = \frac{(7.5 (sin 79.45))}{ 8.6}$

⇒ $Y = 59.02 degrees$

So, the third angle = $180 - 79.45 - 59.02 = 41.53 degrees.$

Therefore, angles formed by these tosses are $79.45, 59.02$ and $41.53$ degrees to the nearest hundredth.

4 0

3 years ago

(2x to the 5th power) 3x to the 3/5th power

saul85 [17]

The expression simplifies to 6x^(28/5)
hope this helps :)

6 0

3 years ago

The volume of a prism is 45 km3. What would change if the volume of the prism were measured in cubic meters?

ZanzabumX [31]

Hello!

There are 1000 meters in a kilometer

Multiply 45km by 1000

45 * 1000 = 45000 cubic meters

The answer is 45,000 cubic meters

Hope this helps!

7 0

3 years ago