1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rom4ik [11]
3 years ago
8

A cube of metal weighs 1,800 g and displaces 600 mL of water when immersed into it. Find the density of the metal.

Mathematics
1 answer:
Over [174]3 years ago
5 0

Answer:

B. 3 g/mL

Step-by-step explanation:

The first thing is to know the density formula:

Density is given as follows:

d = m / V

let m: mass and V: volume.

We have that the mass of the metal is 1800 grams and the volume of 600 milliliters.

Therefore, replacing:

d = 1800/600 = 3 g / mL

That is, the density is 3 grams per milliliter.

You might be interested in
When fritz drives to work his trip takes 40 ​minutes, but when he takes the train it takes 30 minutes. find the distance fritz t
sweet-ann [11.9K]
Distance = rate*time

convert minutes to hour first because the question talking about 15 mile per hour
40 mins = 40/60 2/3 hrs
30 mins = 30/60 = 1/2hrs

Assume that s be the speed when Fritz driving, so
s + 15 will be the speed of the train.

We know the time we know the speed, Next
distance that Fritz drive = \frac{2}{3}s
distance the train travel = \frac{1}{2}(s+15)

The question: Assume that the train travels the same distance as the car
==> \frac{2}{3}s = \frac{1}{2}(s+15)
==> \frac{2}{3}s = \frac{1}{2}s + \frac{15}{2}
==> \frac{2}{3}s - \frac{1}{2}s = \frac{15}{2}
==> \frac{1}{6}s = \frac{15}{2}
==> \frac{6}{1} * \frac{1}{6}s = \frac{15}{2} * \frac{6}{1}
==> s = 45 
Now we know that Fritz drive at 45 mph, 
distance = \frac{2}{3} * 45 = 30 miles
3 0
4 years ago
2.What is the most precise name for quadrilateral ABCD with vertices A(-2,4), B(5,6), C(12,4), and D(5,2)?
Brums [2.3K]
1) The answer is B, 2) the answer is D, method just put all points and get know the graph of each quadrilateral
3) the measure of one angle in a regular n-gon is given by the following  main formula  measure of interior angle= (n-2)*180°/n,
so for n=16, we have 14*180°/16=157.5°
4) the answer is A, because 360/5=72 > 40=360/9
7 0
3 years ago
Find the exact length of the curve. x=et+e−t, y=5−2t, 0≤t≤2 For a curve given by parametric equations x=f(t) and y=g(t), arc len
Rama09 [41]

The length of a curve <em>C</em> parameterized by a vector function <em>r</em><em>(t)</em> = <em>x(t)</em> i + <em>y(t)</em> j over an interval <em>a</em> ≤ <em>t</em> ≤ <em>b</em> is

\displaystyle\int_C\mathrm ds = \int_a^b \sqrt{\left(\frac{\mathrm dx}{\mathrm dt}\right)^2+\left(\frac{\mathrm dy}{\mathrm dt}\right)^2} \,\mathrm dt

In this case, we have

<em>x(t)</em> = exp(<em>t</em> ) + exp(-<em>t</em> )   ==>   d<em>x</em>/d<em>t</em> = exp(<em>t</em> ) - exp(-<em>t</em> )

<em>y(t)</em> = 5 - 2<em>t</em>   ==>   d<em>y</em>/d<em>t</em> = -2

and [<em>a</em>, <em>b</em>] = [0, 2]. The length of the curve is then

\displaystyle\int_0^2 \sqrt{\left(e^t-e^{-t}\right)^2+(-2)^2} \,\mathrm dt = \int_0^2 \sqrt{e^{2t}-2+e^{-2t}+4}\,\mathrm dt

=\displaystyle\int_0^2 \sqrt{e^{2t}+2+e^{-2t}} \,\mathrm dt

=\displaystyle\int_0^2\sqrt{\left(e^t+e^{-t}\right)^2} \,\mathrm dt

=\displaystyle\int_0^2\left(e^t+e^{-t}\right)\,\mathrm dt

=\left(e^t-e^{-t}\right)\bigg|_0^2 = \left(e^2-e^{-2}\right)-\left(e^0-e^{-0}\right) = \boxed{e^2-\frac1{e^2}}

5 0
3 years ago
A triangle has angles of 30° 60° and 90° It is dilated by a scale factor of three give the angle measures of the dilation of the
kupik [55]

Answer:

90degree *kkkkkkkkkiii

Step-by-step explanation:

jsjsueueiwieueuejejeueuejejejeueu3i

8 0
3 years ago
Who was the 31st president of the United States?
Bumek [7]
Herbert Hoover was the 31st president of the United States.
3 0
3 years ago
Read 2 more answers
Other questions:
  • If you want to leave an 18% tip for a waiter on a $54.35 meal, what would the total bill be?
    9·2 answers
  • Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box. _(x-3)+2x=-
    15·2 answers
  • True or false: x/3 is equivalent to 1/3 x. Explain your reasoning.
    8·1 answer
  • Please help
    5·1 answer
  • A company did a quality check on all the packs of trail mix it manufactured. Each pack of trail mix is targeted to weigh 9.25 oz
    12·1 answer
  • Brainliest goes to whoever answers correctly also if you want more points then answer my others
    9·1 answer
  • What best describes the pair of angles below?
    14·1 answer
  • Loans can come with different repayment options. Which option will always be most logical?
    11·1 answer
  • Cauculate the answer when the larges prime number is 35 multiplied by the smallest prime number that is a factor of 15
    13·1 answer
  • Three partners are investing a total of $900,000 to open a garden and landscaping store. Their investments are in the ratio of 2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!