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AysviL [449]
3 years ago
7

Pls help! will do brainliest ​

Mathematics
1 answer:
alexgriva [62]3 years ago
4 0

Answer:

<u>Answer</u><u>:</u><u> </u><u>(</u><u>√</u><u>3</u><u>)</u><u>/</u><u>2</u>

Step-by-step explanation:

\sin(35 \degree)  \cos(25\degree)  +  \cos(35\degree)  \sin(25\degree)  \\

from trigonometry identities:

\sin(a + b)  =  \sin(a)  \cos(b)  +  \cos(a)  \sin(b)  \\

a » 35°

b » 25°

Therefore;

=  \sin(35\degree + 25\degree)  \\  =  \sin(60\degree)  \\  \\  =  \frac{ \sqrt{3} }{2}

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Which choice provides the best evidence for the
Likurg_2 [28]

The correct option in A.

Lines 20-21 ("Nobody . . . died")

<h3>Briefing:</h3>

Nobody has succeed in this thing , and many have died.

This line belong to the 20-21 line for the phrase When fictional Swedish scientist went to the north pole for set up hydrogen- powered balloon.

<h3>Who is  Swedish scientist ?</h3>

Only hydrogen offers helium-like lift; in fact, hydrogen offers 7-8% more lift than any other gas. In atmospheric sounding balloons outside of North America, hydrogen is frequently employed.

<h3>What is hydrogen- powered balloon?</h3>

Arrhenius, who was originally a physicist but is frequently referred to as a chemist, was one of the pioneers of the field of physical chemistry. He was the first Swedish Nobel laureate when he won the Chemistry Prize in 1903.

<h3>Why did they stop using hydrogen in balloons?</h3>

Despite being lighter than air, hydrogen is flammable, and since oxygen is present in the air, there is a chance of an explosion and fire. Since helium is a non-combustible gas and lighter than air, it is frequently used to fill balloons.

To know more about Passage visit:

brainly.com/question/26999874

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5 0
2 years ago
m is a right angle in triangle lmn. the measure of angle n is 67 and the length of mn is 8. What is the length of the hypotenuse
kari74 [83]
Maybe you should divide 67 and 8 to get to the length of the hypotenuse
5 0
3 years ago
If angle I is congruent to angle K find the perimeter of triangle JIK?
inessss [21]
The perimeter of a triangle is given by <em>the sum its three sides</em>, then according to the figure above we have that:

P=(7x-5)+(6x-5)+(9x-11) \\ \\ \therefore P=22x-21

Thus, our goal is to find the value of x and by finding it we will get the perimeter of the triangle. If ∠I = ∠K = β, then according to the Law of Sines we have:

\frac{9x-11}{sin \beta}= \frac{6x-5}{sin \beta} \\ \\ \therefore 9x-11=6x-5 \\ \therefore 3x=6 \therefore \boxed{x=2}

Lastly, the perimeter is:

P=22(2)-21 \rightarrow \boxed{P=23 \ units}

3 0
3 years ago
A quilt is 72 inches wide and 96 inches long. If the quilt has no border or sashing and the blocks have 4 inch sides, how many b
Bingel [31]

There are 18 blocks across width and 48 blocks run up and down the length of quilt.

<u>Solution:</u>

Given, A quilt is 72 inches wide and 96 inches long.  

The blocks have 4 inch sides

<em><u>Finding number of blocks run across the width of quilt:</u></em>

\text { number of blocks across width }=\frac{\text { width of quilt }}{\text { length of each block }}

=\frac{72}{4}=18 \text { blocks }

<em><u>Finding number of blocks run across length:</u></em>

\text { number of blocks across length }=\frac{\text { length of quilt }}{\text { width of each block }}

=\frac{96}{4}=24 \text { blocks. }

<em><u>Finding number of blocks run up and down the length of the quilt:</u></em>

\text { number of blocks run up and down }=2 \times \text { number of blocks across length }

=2 \times 24=48 \text { blocks }

Hence, there are 18 blocks across width and 48 blocks run up and down the length of quilt

7 0
4 years ago
Gretchen is rolling a number cube. What is the probability of rolling a 1 followed by a 2 or a 3
stira [4]

Answer:

1/18

Step-by-step explanation:

The probability of rolling a 1 is 1/6 because there are 6 numbers. You multiply that probability by the probability of getting a 2 or 3 which is 2/6 or 1/3 to get 1/18.

3 0
3 years ago
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