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2 years ago

*11. What is the multiplicative inverse of ? 2/3

Mathematics

2 answers:

astraxan [27]2 years ago

6 0

Answer:

3/2 is the answers for the question

Step-by-step explanation:

please mark me as brainlest and follow me

-Dominant- [34]2 years ago

3 0

3/2 is the answer for the question

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6. Samantha works twice as many hours per week as Adriana. Together they work a total of 39 h one week. a) State how you will as

prohojiy [21]

Answer:

Samantha worked 26 hours and Adriana worked 13 hours.

Step-by-step explanation:

Let s = the number of hours that Samantha worked

Let a = the number of hours that Adriana worked

s = 2a

s + a = 39

2a + a = 39

3a = 39

a = 13

7 0

1 year ago

Use the Law of Cosines to find the values of x and y. (PLEASE HELPPP!!!!)

vredina [299]

Answer:

$x = 49.8^\circ\\y = 54.6^\circ$

Step-by-step explanation:

Kindly refer to the image attached in the answer region for labeling of triangle.

AB = 16

BC = 19

AC = 15

$\angle ABC = x^\circ\\\angle ACB = y^\circ$

We have to find the angles x and y i.e. $\angle B \text{ and }\angle C$ .

Formula for cosine rule:

$cos B = \dfrac{a^{2}+c^{2}-b^{2}}{2ac}$

Where

a is the side opposite to $\angle A$ ,

b is the side opposite to $\angle B$ and

c is the side opposite to $\angle C$ .

$\Rightarrow cos x = \dfrac{19^{2}+16^{2}-15^{2}}{2 \times 19 \times 16}\\\Rightarrow cos x = \dfrac{392}{608} \\\Rightarrow x = 49.8^\circ$

Similarly, for finding the value of y:

$cos C = \dfrac{a^{2}+b^{2}-c^{2}}{2ab}\\\Rightarrow cos y = \dfrac{19^{2}+15^{2}-16^{2}}{2 \times 19 \times 15}\\\Rightarrow cos y = \dfrac{330}{570}\\\Rightarrow y = 54.6^\circ$

Hence, the values are:

$x = 49.8^\circ\\y = 54.6^\circ$

7 0

3 years ago

Yeahhh, please help :,) :DDDD

Tamiku [17]

Answer:

-46

Step-by-step explanation:

4 0

3 years ago

Why aren't the numbers 38 and 40 relatively prime

sergey [27]

Answer:

may be this is helpful!

5 0

3 years ago

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A triangular sail has base of 4 feet and a height of 5 1/2 feet. What is the area of the sail?

Step2247 [10]

Area of a triangle: (1/2)bh, where b = base and h = height

(1/2) x 4 x (11/2)
= (4/2) x (11/2)
= 2 x (11/2)
= 11

4 0

3 years ago

Read 2 more answers