Ask question

Ask question

All categories

2 years ago

8

7. A chemist weighed three separate test samples at 0.17 gram, 0.204 gram, and 2.3 grams. What is the total weight of the three

samples?

1 answer:

ale4655 [162]2 years ago

6 0

2.674 with all of them added together. If you include sig figs it would be 2.7

You might be interested in

Which of the following is not a perfect square a:50 b:49 c:121 d:1

Lostsunrise [7]

50 is not a perfect square because it does not have a perfect square root where as 49 is 7, 121 is 11, and 1 is 1

6 0

2 years ago

Read 2 more answers

Need help with this ASAP

faust18 [17]

9 yards I’m sorry if it’s wrong

6 0

2 years ago

Read 2 more answers

What is the slope - intercept form of the equation if the line through the points (3,-1) and (-1,-5)

ikadub [295]

Answer:

Slope - intercept form:

B) y= x -4

Step-by-step explanation:

(3,-1) and (-1,-5)

Slope = (-5 + 1)/(-1 - 3)

Slope = -4 / -4

Slope = 1

Point slope form:

y + 1 = 1 (x - 3)

y +1 = x - 3

y = x - 4 <------------------slope - intercept form

7 0

3 years ago

Read 2 more answers

if you deposit $10000 at 11%(simple interest), how long will it be until the total amount in the account is $21000?

ki77a [65]

10000:100*11=1100 income per year

21000-10000=11000 need to have income

11000:1100=10 years will pass time

4 0

2 years ago

Please help and thank you!

Stolb23 [73]

The conversion is

$x = r \cos \theta$

$y = r \sin \theta$

So

$\dfrac y x = \tan \theta$

We're given the fairly unusual

$\theta = -\frac 5 2$

It's fairly unusual because usually an angle is given in degrees or radians, and typically the radians are a fraction times pi. We'll assume radians.

$\dfrac y x = \tan \theta = \tan(-5/2) \approx 0.747$

Ah, there's our .75. The approximate answer is

$y = 0.75 x$

Third choice.

The exact answer is

$y = x \tan( -\frac 5 2)$

also a line through the origin.

3 0

2 years ago