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nlexa [21]
3 years ago
6

Pls help me I’m new at Geometry :/

Mathematics
2 answers:
prohojiy [21]3 years ago
7 0

Answer:

hope it helps u

Step-by-step explanation:

and pls mark as branlist ans

Delicious77 [7]3 years ago
5 0

Answer:

17.3

Step-by-step explanation:

√(-9-8)² + (-6-(-3))²

√17² + 3²

√289 + 9

√298 = 17.3

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thank you for hurrying here is the very last one Explain how you would find the perimeter of this triangle.
Lena [83]

Step-by-step explanation:

Use the method of TOA CAH SOH.

tan(51.3) =  \frac{opp}{adj}  \\  \tan(51.3)  =  \frac{u}{4}  \\ u = 4 \tan(51.3)

cos(51.3)  =  \frac{adj}{hypo}  \\  \cos(51.3)  =  \frac{4}{v}  \\ v \cos(51.3)  = 4 \\ v =  \frac{4}{ \cos(51.3) }

Perimeter of triangle = Sum of all sides =

u \:  +  \: v + 4

5 0
3 years ago
Read 2 more answers
Suppose that triangle ABC is a right triangle with a right angle at C and hypotenuse C. Also note that a is the length of the si
gavmur [86]

Answer:

The value of a is 7.4833. The value of A=29.9262^0 and B=60.0735^0.

Step-by-step explanation:

Consider the provided information.

The required figure is shown below:

We need to find the value of a.

Calculate the value of a by using Pythagorean theorem.

a^2+b^2=c^2

a^2+(13)^2=(15)^2

a^2=225-169

a^2=56

a=7.4833

Hence, the value of a is 7.4833.

Now find the value of angle A as shown:

\sin A=\frac{a}{c}

\sin A=\frac{7.4833}{15}

A=sin^{-1}(0.4989)

A=29.9262^0

Find the value of angle B as shown:

\sin B=\frac{b}{c}

\sin B=\frac{13}{15}

B=sin^{-1}(0.8667)

B=60.0735^0

Hence, the value of A=29.9262^0 and B=60.0735^0.

6 0
3 years ago
Which expression is equivalent to (x^2 -8) - (-2x^2+4)?​
Phoenix [80]

Answer:

D) 3x^2 - 12

Step-by-step explanation:

Using PEMDAS;

There is no need to evaluate the part of the equation (x^2 - 8) because is no need to, as it is already in its simplest form.

We must evaluate the part of the equation continuing with, "- (-2x^2+4)," as it is not in its simplest form.

Evaluating "- (-2x^2+4)":

Step 1: Distributing the negative

Once distributing the negative symbol amongst the values within the parenthesis according to PEMDAS, we get "2x^2 - 4" as the product.

Step 2: Consider the rest of the equation to evaluate

Since the part of the equation is still in play here as it is a part of the original equation to be solved, we must evaluate it as a whole to get the final answer.

Thus,

x^2 -8 + 2x^2 - 4 = ___

*we can remove the parenthesis as it has no purpose, since it makes no difference.

Evaluating for the answer, we get,

x^2+2x^2 + (-8 - 4) = 3x^2 - 12

Hence, the answer is D) 3x^2 - 12.

3 0
4 years ago
Help ASAP I need to know
Andrej [43]

Answer:

Step-by-step explanation:

ax + by = c

4 0
3 years ago
Last week, Chen bought 4 and 1/5 gallons of gas at $2.25 per gallon.
mamaluj [8]
$10.13

4 1/2=4.5
4.5x2.25=10.125
10.125 rounds to 10.13
6 0
3 years ago
Read 2 more answers
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