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Kamila [148]
4 years ago
11

Please answer question ASAP! Use the triangle below to determine which of the following statements are true. (The answer choices

are in the images and the other answer choice is in the comments) p.s. There are three correct answer choices. Thank you

Mathematics
1 answer:
vagabundo [1.1K]4 years ago
7 0
Choice A is true. This is the Pythagorean identity. One of the most fundamental trig identities you should memorize.

Choice B is false. Let A = 60 and B = 30 and you'll see the left hand side turn into 0.5 while the right hand side turn into -0.5

Choice C is true. This is a variation of the identity tan^2+1 = sec^2 (just subtract tan^2 from both sides)

Choice D is true as this is a more complicated variation of 1+tan^2 = sec^2
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a machine takes 2.8 hours to make 9 parts .at that rate how many parts can the machine make in 28.0?
puteri [66]
I multiplied 28.0*9 and got 252.Hope this helps

3 0
4 years ago
The line y+4=3/4(x-8) contains point (a,2). Find a.
Naddik [55]

Answer:

a = 16

Step-by-step explanation:

y + 4 = \dfrac{3}{4}(x-8)\\\\y + 4 = \dfrac{3}{4}x- \dfrac{3}{4}*8\\\\y +4 = \dfrac{3}{4}x-3*2\\\\y+4+6= \dfrac{3}{4}x \\\\y+10= \dfrac{3}{4}x

Now plugin x = a and y =2 in the above equation,

2+10= \dfrac{3}{4}*a\\\\12= \dfrac{3}{4}a\\\\12* \dfrac{4}{3}=a\\\\a=4*4\\\\a=16

5 0
3 years ago
if 2/3 of the girls in class have brown eyes and one fourth of the girls have blue eyes what fraction of girls in class have nei
Virty [35]
1/3: doesn't have brown eyes
3/4: doesn't have blue eyes

1/3 x 3/4 = 1/4

So, 1/4 of the class has neither brown or blue eyes.
5 0
3 years ago
The diameter of a cylinder is 4 centimeters. The height is 12 centimeters. Using 3.14 for pi, what is the volume of the cylinder
Dovator [93]

Answer:

The volume of the cylinder with given height and radius is 150.72 centimeters³ .

Step-by-step explanation:

Given as :

the height of cylinder = H = 12 centimeters

The diameter of cylinder = D = 4 centimeters

So The radius of cylinder = R = \dfrac{\textrm Diameter}{2}

Or, R = \frac{4}{2}

I.e R = 2 cm

The volume of cylinder is given as V = \pi×R²×H

where R is the radius and H is the height

So, V = 3.14×(2)²×12

Or, V = 3.14×48

∴ V = 150.72 centimeters³

So, The volume is 150.72 centimeters³

Hence The volume of the cylinder with given height and radius is 150.72 centimeters³ . Answer

8 0
3 years ago
-3.6x + 1.0 = -16 - 1.9x
Evgen [1.6K]
-1.7 = -17
This is because you need x on one side so you add 1.9x onto -3.6x
8 0
3 years ago
Read 2 more answers
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