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PolarNik [594]
3 years ago
14

Evaluate using suitable property. Write the needed steps. Use proper brackets. 20 x 399 x 5

Mathematics
1 answer:
Reil [10]3 years ago
6 0

Step-by-step explanation:

20 x 399 x 5

= (20×5) × 399

= 100×399

= 39,900

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Can somebody please help me find the volume of this triangular prism?
Bas_tet [7]

Check the picture below.

the volume of the prism will simply be the product of the triangular area and its length, it has a length of 8, thus

\bf \stackrel{\textit{area of a triangle}}{A=\cfrac{1}{2}bh}~~ \begin{cases} b=9\\ h=6 \end{cases}\implies A=\cfrac{1}{2}(9)(6)\implies A=27 \\\\\\ \stackrel{\textit{volume of the triangular prism}}{V=27\cdot 8}\implies V=216

8 0
3 years ago
35 rounded to the nearest hundred
Volgvan

Answer and Explanation: 35 rounded to the nearest 100 is 0. To round to the nearest hundred, you need to first identify the hundreds that are closest to the number you are rounding. For 35, the closest hundred that is lower than 35 is 0, and the closest 100 that is higher than 35 is 100.

7 0
3 years ago
Read 2 more answers
X – 6 = 14 – 8 <br> 12 <br> 0 <br> 20 <br> –12
sineoko [7]

Hi there!

Answer:

<u><em>A. 12. x=12 and 12=x</em></u>

Step-by-step explanation:

addition property of equality is adding the same number both sides of an equation does not change the equation.

subtraction property of equality is subtraction the same number from both sides of an equation does not change the equation.

multiplication property of equality is multiplying both sides of an equation by the same number does not change the equation.

division property of equality is dividing both sides of an equation by the same number non-zero number does not change the equation.

x-6=14-8

subtract by 6 both sides of an equation.

x-6=6

add by 6 both sides of an equation.

x-6+6=6+6

simplify.

6+6=12

x=12

12-6=6

Hope this helps!

-Charlie

Have a great day!


7 0
3 years ago
17 out of 20 lung deserves are curable; what is the percentage of lung diseases that are curable? Yes, but how did you get that
patriot [66]

Answer:

85%

Step-by-step explanation:

This problem can be solved by dividing the number of cured cases by the total number of cases (17/20). In order to verify this you can see what number 20 can be multiplied in order to get 100 (5). You can then multiply this by 17 in order to get the number of cured cases out of 100 (the definition of percent)

6 0
3 years ago
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slega [8]

Answer:

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Step-by-step explanation:

Cos x⁰ = adjacent/hypotenus

Cos x⁰ = 8/13

Cos x⁰ = 0.615

x⁰ = cos^-1 (0.615)

x⁰ = 52⁰

3 0
3 years ago
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