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2 years ago

PLEASE HELP!!!!! The mass of a bar of chocolate is 1800g.

Mathematics

2 answers:

Serhud [2]2 years ago

6 0

Volume = mass divided by density

v = 1800g divided by 9g
= 200gcm3

vovikov84 [41]2 years ago

5 0

Answer:

Compare the overall density of the whole bar of chocolate to the density of 1/4 of the bar. Was the density significantly different (if the difference is less than 0.2 g/cm3, then we should assume that it’s the same)?

Step-by-step explanation:

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An angle measures 47.2° less than the measure of its supplementary angle. What is the measure of each angle? on ixl

SVEN [57.7K]

Answer:

The measure of one angle is $113.6^o$ , and the measure of the other one is $66.4^o$

Step-by-step explanation:

Recall that supplementary angles are those whose addition renders $180^o$

We need to find the measure of two such angles whose difference is precisely $47.2^o$ .

Let's call such angles x and y, and consider that angle x is larger than angle y, so we can setup the following system of equations:

$x+y=180^o\\x-y=47.2^o$

We can now solve this by simply combining term by term both equations, thus cancelling the term in "y", and solving first for "x":

$x+y=180^o\\x-y=47.2^o\\\\2x=180^o+47.2^o\\2x=227.2^o\\x=113.6^o$

So, now we have the answer for one of the angles (x), and can use either equation from the system to find the measure of angle "y":

$y=180^o-x\\y=180^o-113.6^o\\y=66.4^o$

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3 years ago

Convert 780 cubic feet into gallons round answer to the nearest whole number

Allushta [10]

Answer: 5,835 gallons

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2 years ago

Which of the following is not a major arc?<br> 148°

fgiga [73]

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2 years ago

Sid Upp is four years younger than his brother Tip. Let x stand for Tip's age . Write an equation stating that Sid's age is 32.

vlada-n [284]

Answer:

x+4=36

Step-by-step explanation:

you would subtract 4 on each side

x+4=36

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3 years ago

83. Use properties of exponents to rewrite each expression with only positive, rational exponents. Then find the numerical value

alexdok [17]

Answer:

$2^{\frac{18}{11}}$

Step-by-step explanation:

The given expression is

$\sqrt[11]{y^2z^4}$

The exponent property $\sqrt[n]{x^ay^b}=x^{a/n}y^{b/n}$

Applying this exponent property, we have

$\sqrt[11]{y^2z^4}\\\\=y^{2/11}z^{4/11}$

Now, the given numeric values are x = 9, y= 8, and z= 16

On substituting these values in the simplified expression, we get

$(2)^{2/11}(16)^{4/11}$

This can be further simplified by writing $16=2^4$

$(2)^{2/11}(2^4)^{4/11}\\\\(2)^{2/11}(2)^{16/11}$

Now, applying the product rule of exponent: $x^a\cdot x^b=x^{a+b}$

$(2)^{2/11+16/11}\\\\=2^{\frac{18}{11}}$

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3 years ago