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2 years ago

-0.8 written as a fraction is _____.

Mathematics

2 answers:

Degger [83]2 years ago

6 0

-0.8 = -0.8/10
-0.8 x 10 = -8
1 × 10 = 10
-8/10
Simplified = -4/5

zheka24 [161]2 years ago

4 0

It would -80% as a percentage and than as a fraction it would be -80/100
than you have to simplify it so using common factors, you know that 20 goes into each number...so divide 20 from the top and bottom which will give you...
-4/5
So your answer is -4/-5

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Please help and also how did u get ur answer

s344n2d4d5 [400]

9514 1404 393

Answer:

$364,130.83

Step-by-step explanation:

You put in $160 monthly for 32 years, so your contribution is ...

$160×12×32 = $61,440

The difference between the account balance and your contribution is ...

$425,570.83 -$61,440 = $364,130.83

There is $364,130.83 more in the account than what you put in.

8 0

3 years ago

If two objects travel through space along two different curves, it’s often important to know whether they will collide. (Will a

galina1969 [7]

Answer:

Both objects collide at t=3 in the point <9,9,9>

Step-by-step explanation:

Collision Of Moving Objects

Two objects can describe different trajectories in the space. Those trajectories can intersect in one or more points but it doesn't mean they collide. Collision occurs if they are in the same position at the same time. If we know the positions as a function of time of each object, we could try so find if, for a given time, they are in the same position.

The positions of two object are given as

$r1(t)=$

$r2(t)=$

Let's find out if there is at least one value of t that makes both positions to be the same. We can try by equating one of the three coordinates and testing if the value of t make both have the same x,y,z coordinate. Let's try equating the x-components of both

$t^2=4t-3$

Rearranging

$t^2-4t+3=0$

Factoring

$(t-1)(t-3)=0$

We found two solutions

$t=1,\ t=3$

for t=1 the x-coordinates are

$x1=t^2=1$

$x2=4t-3=1$

For t=3

$x1=t^2=9$

$x2=4t-3=9$

Now we'll test both values in the y-coordinates

$y1=7t-12$

$y2=t^2$

For t=1

$y1=-5$

$y2=1$

Thus they don't collide at t=1. Let's try t=3

$y1=7(3)-12=9$

$y2=3^2=9$

Now let's try the z-coordinate for t=3

$z1=t^2=9$

$z2=5t-6=9$

Since the three coordinates match, we can say both objects collide at t=3 in the point <9,9,9>

6 0

3 years ago

Plz help I am new to this I would appreciate the help

sammy [17]

Round to the nearest fraction and find a number to divid that go into the top and bottom number

3 0

2 years ago

33 -3 1/3 = help me please

Gekata [30.6K]

Exact form: 89/3

Decimal form:29.666666.....

Mixed number: 29 2/3

6 0

3 years ago

Read 2 more answers

Which of the following is a Type I error?

Sedaia [141]

Answer:

C. The president rejects the hypothesis that the proportion of students who earn a bachelor's degree within six years is 0.398, when, in fact, the proportion is 0.398.

Step-by-step explanation:

A type I error occurs if you reject the null hypothesis when it is true.

Now the hypotheses are:

$H_0:$ The proportion is 0.398

$H_1:$ The proportion is less than 0.398

If in actual fact the proportion is 0.398, then the president must not reject the $H_0$ .

This is a correct decision.

If in actual fact the proportion is 0.398, and the president rejects the $H_0$ , then a type I error is committed.

The correct choice is C.

3 0

3 years ago