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earnstyle [38]
3 years ago
8

Solve for x and round to the nearest tenth

Mathematics
1 answer:
Mila [183]3 years ago
4 0

9514 1404 393

Answer:

  88.9

Step-by-step explanation:

The relevant trig relation is ...

  Cos = Adjacent/Hypotenuse

  cos(77°) = 20/x

  x = 20/cos(77°)

  x ≈ 88.9

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Please help! Really easy math, need it asap!!! It's in the picture
Dominik [7]

Answer:

answers are: (-1,-2), (1,2), (-1,5), (1,-5). in other words, option 2, 6, 7, and 8.

Step-by-step explanation:

hope it helps

3 0
3 years ago
A submarine dives 300 feet every 2 minutes, and 6,750 feet every 45 minutes. Solve for A and
Gelneren [198K]
A: To find the rate in feet per minute, we can use the information given. 
Every two minutes, the submarine dives 300 feet. So 
\frac{300feet}{2minutes} = 150 \frac{feet}{minute} .
In order to confirm that our rate is correct, we can use the second set of information given.
\frac{6750feet}{45minutes}=150 \frac{feet}{minute}.
Since we know that the rate is 150 feet per minute, we can multiply it by any number of minutes and get the answer of how deep the submarine is. We can use a variable x to represent the number of minutes and y to represent the depth in feet.
y=150x
There's our equation.
B: It would be more reasonable to use an equation with the rate feet per minute because it is more accurate since the time interval isn't too big.
3 0
3 years ago
ASAP pls help me giving brainliest
Orlov [11]

Answer:

4 pounds of milk of 2 and cereal 6 pounds who knows what grade of work this is

8 0
3 years ago
A helicopter hovers 500 feet above a small island. The figure shows that the angle of
Tamiku [17]

Answer:

435 ft

Step-by-step explanation:

Reference angle = <P = 49° (angle of elevation)

Opposite side = 500 ft

Adjacent side = d = ?

Apply trigonometric function, TOA.

This:

Tan P = opp/adj

Tan 49 = 500/d

d × Tan 49 = 500

d = 500/Tan 49

d = 434.643369 ≈ 435 ft (to the nearest foot)

6 0
3 years ago
Find the value of o.81 dividing o.o9 plus o.81 dividing nine my entire math grades depend on this please help me
tankabanditka [31]

Answer:

i believe its 9.09

Step-by-step explanation:

i did this problem 3 different ways

first i put it all in a calculator and got 9.09

then i did 0.81/0.09 = 9+ 0.81 = 9.81/9 = 1.09

finally i did 0.81/0.09 = 9    0.81/9 = 0.09

9+ 0.09 = 9.09

therefore 9.09 is what i believe the answer is

i hope this helps you!

4 0
3 years ago
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