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lara31 [8.8K]
3 years ago
8

A+b-c=180 Solve the equation

Mathematics
2 answers:
andre [41]3 years ago
5 0
A is 140 b is  60 and c is 20 so its 140 + 60 - 20 = 180
VladimirAG [237]3 years ago
3 0
You can do it in multiple ways but mine is....     140+120-160=180
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NEED HELP ASAP!!!!!
Law Incorporation [45]

Answer:the length 7

Step-by-step explanation:each one is times 3 6x3 8x3 3x7=21

3 0
2 years ago
12 less the product of an unknown number and three equals -9.
chubhunter [2.5K]
In standard form its written 
3x-12=-9
if you need help solving then here you go as well
3x-12=-9
add 12 to both sides
3x=3
divide both sides by 3 
x=1
4 0
3 years ago
Which represents the empirical formula for A3B9?<br> AB3<br> AB2<br> A3B9<br> A9B27
DaniilM [7]

Answer:

AB_{3}

Step-by-step explanation:

Given : A_{3}B_{9}

To Find : Which represents the empirical formula forA_{3}B_{9}?

Solution:

Definition of Empirical Formula - A formula that gives the simplest whole-number ratio of atoms in a compound.

A_{3}B_{9}

To reduce it in simplest form

Divide the subscript numbers by 3

So, the resultant : AB_{3}

Thus the empirical formula for A_{3}B_{9} :

AB_{3}


5 0
3 years ago
Read 2 more answers
PLS HELP ME!!! The figure is made up of a cone and a hemisphere. To the nearest whole number, what is the approximate volume of
Pachacha [2.7K]

Hello!

The figure is made up of a cone and a hemisphere. To the nearest whole number, what is the approximate volume of this figure? Use 3.14 to approximate π . Enter your answer in the box. cm³

Data: (Cone)

h (height) = 12 cm

r (radius) = 4 cm (The diameter is 8 being twice the radius)

Adopting: \pi \approx 3.14

V (volume) = ?

Solving: (Cone volume)

V = \dfrac{ \pi *r^2*h}{3}

V = \dfrac{ 3.14 *4^2*\diagup\!\!\!\!\!12^4}{\diagup\!\!\!\!3}

V = 3.14*16*4

\boxed{V = 200.96\:cm^3}

Note: Now, let's find the volume of a hemisphere.

Data: (hemisphere volume)

V (volume) = ?

r (radius) = 4 cm

Adopting: \pi \approx 3.14

If: We know that the volume of a sphere is V = 4* \pi * \dfrac{r^3}{3} , but we have a hemisphere, so the formula will be half the volume of the hemisphere V = \dfrac{1}{2}* 4* \pi * \dfrac{r^3}{3} \to \boxed{V = 2* \pi * \dfrac{r^3}{3}}

Formula: (Volume of the hemisphere)

V = 2* \pi * \dfrac{r^3}{3}

Solving:

V = 2* \pi * \dfrac{r^3}{3}

V = 2*3.14 * \dfrac{4^3}{3}

V = 2*3.14 * \dfrac{64}{3}

V = \dfrac{401.92}{3}

\boxed{ V_{hemisphere} \approx 133.97\:cm^3}

What is the approximate volume of this figure?

Now, to find the total volume of the figure, add the values: (cone volume + hemisphere volume)

Volume of the figure = cone volume + hemisphere volume

Volume of the figure = 200.96 cm³ + 133.97 cm³

\boxed{\boxed{\boxed{V = 334.93\:cm^3 \to Volume\:of\:the\:figure \approx 335\:cm^3 }}}\end{array}}\qquad\quad\checkmark

Answer:

The volume of the figure is approximately 335 cm³

_______________________

I Hope this helps, greetings ... Dexteright02! =)

8 0
3 years ago
Read 2 more answers
Find the point B on AC overline such that the ratio of AB to BC is 1:3
Degger [83]

Answer:

Step-by-step explanation:

The xxx-coordinate of BBB is 333 less than the xxx-coordinate of AAA, or 8 - 38−38, minus, 3.

The yyy-coordinate of BBB is 111 greater than the yyy-coordinate of AAA, or -8 + 1−8+1minus, 8, plus, 1.

The coordinates of BBB are (5, -7)(5,−7)left parenthesis, 5, comma, minus, 7, right parenthesis.

answer (5,-7)

pls refer to this answer and pls mark me brainliest as i have been waiting to be brainliest for almost 5 years pls

7 0
3 years ago
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