3 years ago

Someone PLEASE help me this is insane!

Mathematics

2 answers:

Paha777 [63]3 years ago

6 0

Answer:

-5 I think

Step-by-step explanation:

Am I right I am dying to know.

yaroslaw [1]3 years ago

5 0

Answer: I think -131

Step-by-step explanation:

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Use the unit circle to find sin 90 degrees a. 1 c. -1 b. 0 d. Undefined Please select the best answer from the choices provided

Maksim231197 [3]

Answer:

sin of 90 is 1

Step-by-step explanation:

sin is the y axis coordinate and the coordinates of 90° on unit circle is (0,1)

3 0

3 years ago

With steps please

Nat2105 [25]

Answer: $75\ m$

Step-by-step explanation:

Given

The tower is 45 m high and Clinometer is set at 1.3 m above the ground

From the figure, we can write

$\Rightarrow \tan 32^{\circ}=\dfrac{43.7}{x}\\\\\Rightarrow x=\dfrac{43.7}{\tan 32^{\circ}}\\\\\Rightarrow x=69.93\ m$

Similarly, for $\triangle ACD$

$\Rightarrow \tan 47^{\circ}=\dfrac{43.7+y}{x}\\\\\Rightarrow 69.93\times \tan 47^{\circ}=43.7+y\\\\\Rightarrow 74.99=43.7+y\\\Rightarrow y=31.29\ m$

Height of the tower is $43.7+31.29\approx 75\ m$

8 0

3 years ago

Seventeen more than half a number, h, is 35

Rzqust [24]

Answer:

h =36

Step-by-step explanation:

ok, so first let's simplify this and convert it into an equation

17+1/2h=35

so first, we should subtract 17 on both sides

1/2h=18

now you have a really simple equation, multiply by 2 on both sides

h = 36

5 0

3 years ago

I need help with this plz...Thanks

pogonyaev

Answer:

Step-by-step explanation:

You graph it

4 0

3 years ago

A cube has a volume of 64 cm3. What is the length of a side of a cube

Reil [10]

Answer:

V=8cm

Step-by-step explanation:

V=a³

a=∛64

7 0

4 years ago