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3 years ago

ΔABC is a right triangle in which is a right angle, AB = 1, AC = 2, and BC = .

1 answer:

8 0

We are asked to solve for the measurement of side BC in the given right triangle ΔABC and other side measurements were also given such as AB=1 and AC = 2. Since this is a right triangle, we can use and apply the Pythagorean theorem c²= a² + b² and the solution is shown below:
c = AC
b = BC
a = AB
AC² = AB² + BC² , substitute values we have:
2² = 1² + BC²
BC² = 4-1
BC = √3
BC = 1.732

The answer for the length of BC is 1.732 units.

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Ah what is the length of XB? I really need to learn how to solve this

levacccp [35]

Answer:

5.28

Step-by-step explanation:

we use the formula

H²=B²+P²

and we will get the answer

branliest if it is helpful

7 0

2 years ago

Read 2 more answers

I upped the steaks plz answer this, I will give brainiest

Bad White [126]

Answer:

$\displaystyle x = \frac{3}{4}$

Step-by-step explanation:

we are given that

$\displaystyle P = \left(x, - \frac{ \sqrt{7} }{4} \right)$

we want to figure out x

remember that,

In unit circle x coordinate is considered cos and y coordinate is considered sin

so in order to figure out x we should figure out the value of cos to do we can consider Pythagoras trig indentity

given by

$\displaystyle \sin ^{2} ( \theta) + { \cos}^{2} ( \theta) = 1$

we are given sin=-√7/4 thus

substitute:

$\displaystyle \left( - \frac{ \sqrt{7} }{4} \right) ^{2} + { \cos}^{2} ( \theta) = 1$

simplify square:

$\displaystyle \frac{7}{16} + \cos ^{2} ( \theta) = 1$

move left hand side expression to right hand side and change its sign:

$\displaystyle \cos ^{2} ( \theta) = 1 - \frac{7}{16}$

simplify Substraction:

$\displaystyle \cos ^{2} ( \theta) = \frac{9}{16}$

square root both sides:

$\displaystyle \cos ^{} ( \theta) = \pm\frac{3}{4}$

since in unit circle cos is x and P belongs to Q:IV negative cos isn't applicable

hence,

$\displaystyle x = \frac{3}{4}$

5 0

3 years ago

If there is a man standing in a group, with three people on his right and four people on his left, how many people are there in

andrey2020 [161]

Answer:

Step-by-step explanation:

3 People on right + 4 people on the left = 7 people + himself = 8 people in the group

3 0

1 year ago

Help me please! I’m begging

Goryan [66]

12) the radius is 15 so with the equation (3.14)*r^2, we get (3.14)(15^2)=706.5

13) true, true (if x=4), true

14) y=0.75x+4.50, $8.25

7 0

3 years ago

Connect them plz and ty

SashulF [63]

Answer:

I am truly sorry if any of these answers are incorrect, I am here to help and I will do my best!

Step-by-step explanation:

A clock that uses hands to tell time is less precise than a clock that uses numbers.

A signal stored on a vinyl record is less easily copied than a signal stored in a computer.

A signal that is continuously varying is less reliable than a signal with limited possible values.

A signal transmitted by the human voice loses more energy as it travels than a signal transmitted by a fiberoptic cable.

Hope this helps! :)

If so, Brainliest would be nice... But it is ok if not :)

5 0

3 years ago