3 years ago

Solve the proportion: 80/100=68/m

Mathematics

1 answer:

GaryK [48]3 years ago

5 0

The answer is 6800 = 80m

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The power goes out as Sandra is trying to get dressed. If she has 7 white T-shirts and 13 colored T-shirts in her drawer, is it

skad [1K]

Answer:

13/20

Step-by-step explanation:

To get this answer, you add 7 and 13 together and you get 20. Then you put 13 over 20 and that becomes 13/20. Since 13/20 cannot be simplified any further, that is your final answer.

Hope this helps, have a great day/night!

6 0

3 years ago

Find the measure of Q, the smallest angle in the triangle whose sides have lengths 4-5, and 6. Round the measure to the nearest

kakasveta [241]

<u>Given</u>:

Given that PQR is a triangle.

The measures of the sides of the triangle are 4,5 and 6.

We need to determine the measure of ∠Q.

<u>Measure of ∠Q:</u>

The measure of ∠Q can be determined using the law of cosines formula.

Thus, we have;

$\cos (Q)=\frac{p^{2}+r^{2}-q^{2}}{2 p r}$

Substituting p = 6, q = 4, r = 5, we get;

$\cos (Q)=\frac{6^{2}+5^{2}-4^{2}}{2 (6)(5)}$

Simplifying, we get;

$\cos (Q)=\frac{36+25-16}{2 (30)}$

$\cos (Q)=\frac{45}{60}$

Dividing, we get;

$\cos (Q)=0.75$

$Q=cos^{-1}(0.75)$

$Q=41^{\circ}$

Thus, the measure of ∠Q is 41°

Hence, Option b is the correct answer.

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3 years ago

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Sholpan [36]

Answer:

0.4476

Step-by-step explanation:

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Simplify (6 + i)(8 − 3i).

andreev551 [17]

51-10i is your answer

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Aremethic sequences 5, 7, 9, 11, 13

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