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marusya05 [52]
4 years ago
6

Hurry 

Mathematics
1 answer:
garri49 [273]4 years ago
5 0
Glass and Titanium. Glass is because (10,40) (y over x) is 4 and Titanium is because (10,60) is 6 cork and lead are not since when dividing y over x it doesn't equal 2.
You might be interested in
Boris has 10 pairs of jeans, 15 T-shirts, and 7 sweaters in his closet. Write the ratio of sweaters to pairs of jeans using a co
Viktor [21]

Answer: 7:10

Step-by-step explanation: You are asked to find the ratio of sweaters to pairs of jeans. All you do is write the 7 sweaters and the 10 pairs of jeans. And you get a ratio of 7:10. Since this cannot be reduced any further, you just leave it as it is.

Hope this helps.

3 0
2 years ago
Yen said he can find 520 ÷ 10 by taking the 0 off of 520 to get 52. Yen finds 23.160 ÷ 10 using the same method and gets 23.16.
vodomira [7]
He is incorrect
when dividing by ten, move the decimal 1 number to the right
he was sort of correct on the first part, but in the second part, the zero would automatically be removed, due to the fact that it comes after the decimal.
the correct answer for the second part is 2.316

hope this helps 
4 0
3 years ago
Read 2 more answers
What is the 6th term of the geometric sequence f(1) = 12, f(n) = -2/3f(n-1)
Troyanec [42]
\bf \begin{array}{ccll}
\stackrel{n^{th}}{term}&value\\\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\\\
1&12\\\\
2&-\frac{2}{3}f(2-1)\\\\
&-\frac{2}{3}f(1)\\\\
&-\frac{2}{3}(12)\\\\
&-8\\\\
3&-\frac{2}{3}f(3-1)\\\\
&-\frac{2}{3}f(2)\\\\
&-\frac{2}{3}(-8)\\\\
&\frac{16}{3}
\end{array}

\bf \begin{array}{cccl}
\qquad &\qquad \\
4&-\frac{2}{3}f(4-1)\\\\
&-\frac{2}{3}f(3)\\\\
&-\frac{2}{3}\left( \frac{16}{3} \right)\\\\
&-\frac{32}{9}\\\\
5&-\frac{2}{3}f(5-1)\\\\
&-\frac{2}{3}f(4)\\\\
&-\frac{2}{3}\left( -\frac{32}{9} \right)\\\\
&\frac{64}{27}\\\\
6&-\frac{2}{3}f(6-1)\\\\
&-\frac{2}{3}f(5)\\\\
&-\frac{2}{3}\left(  \frac{64}{27}\right)
\end{array}
5 0
3 years ago
Factor the polynomial 4x^2-12x^2+7x-21 completely
sergejj [24]

Answer:

4x^2-12x^2+7x-21\\\mathrm{Add\:similar\:elements:}\:4x^2-12x^2=-8x^2\\=-8x^2+7x-21

Step-by-step explanation:

6 0
3 years ago
8-inch boxes are stacked next to 6-inch boxes. What is the lowest height at which the two stacks will be the same height?​
Vladimir79 [104]

Answer:

<u>The lowest height at which the two stacks will be the same height is 24 inches.</u>

Step-by-step explanation:

For answering this problem, we have to find out the lowest common multiple of 6 and 8, listing its prime factors, this way:

6 = 3 * 2

8 = 2 * 2 * 2

Now, we multiply each factor the greatest number of times it occurs in either number. If the same factor occurs more than once in both numbers, you multiply the factor the greatest number of times it occurs.

Therefore, we have:

2 : 3 times as prime factor of 8

3: 1 time as prime factor of 6

The lowest common multiple is:

2 * 2 * 2 * 3 = 24

<u>The lowest height at which the two stacks will be the same height is 24 inches.</u>

7 0
4 years ago
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