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3 years ago

How do I find the lengths of A and B?

Mathematics

2 answers:

bija089 [108]3 years ago

8 0

Sin(53)=a/6
a=6*sin(53)=4.7918

Cos(53)=b/6
b=6*cos(37)=3.6109

11111nata11111 [884]3 years ago

4 0

All you have to do it Identify the legs and the hypotenuse of the triangle. You know that the triangle is a right triangle since the ground and the raised portion of the porch are perpendicular—this means you can use the Pythagorean Theorem to solve this problem. Identify a, b, and c. Use the Pythagorean Theorem to find the length of c.

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So Alex is selling a very rare spice that costs $100 per gram. Someone wants to buy $80 worth of the spice. How much spice (in g

Alika [10]

80% of a gram.
One gram is $100, aka $100 is 100% of a gram, so $80 would be 80% of a gram.

7 0

3 years ago

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If it takes 6 hours for a plane to travel 720km with a tail wind and 8 hours to make the return trip with a head wind. Find the

denis-greek [22]

The speed of wind and plane are 105 kmph and 15 kmph respectively.

Solution:

Given, it takes 6 hours for a plane to travel 720 km with a tail wind and 8 hours to make the return trip with a head wind.

We have to find the air speed of the plane and speed of the wind.

Now, let the speed wind be "a" and speed of aeroplane be "b"

And, we know that, distance = speed x time.

$\text { Now, at tail wind } \rightarrow 720=(a+b) \times 6 \rightarrow a+b=\frac{720}{6} \rightarrow a+b=120 \rightarrow(1)$

Now at head wind → $720=(a-b) \times 8 \rightarrow a-b=\frac{720}{8} \rightarrow a-b=90 \rightarrow(2)$

So, solve (1) and (2) by addition

2a = 210

a = 105

substitute a value in (1) ⇒ 105 + b = 120

⇒ b = 120 – 105 ⇒ b = 15.

Here, relative speed of plane during tail wind is 120 kmph and during head wind is 90 kmph.

Hence, speed of wind and plane are 105 kmph and 15 kmph respectively.

6 0

3 years ago

Using the following image, find GH given HI = 1 and GI = = 9.

shepuryov [24]

Answer:

Step-by-step explanation:

3 0

3 years ago

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Plz help for brianly

ozzi

Answer:

190.

Step-by-step explanation:

4 0

3 years ago

Don’t really understand it someone help

stich3 [128]

Answer:

n = 8 or n = −2 is the correction solution.

Step-by-step explanation:

As the absolute value equation is given:

| n−3 | = 5

We know either n − 3 = 5 or n − 3 = −5

n − 3 = 5 (First Possibility)

n − 3 + 3 = 5 + 3

n = 8

n − 3 = -5 (Second Possibility)

n = -5 + 3

n = -2

So, n = 8 or n = −2 is the correction solution.

Keywords: absolute value equation

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7 0

3 years ago