3 years ago

Which equation can be used to solve for x in the following diagram?

Mathematics

2 answers:

mestny [16]3 years ago

7 0

C
hope this helps you

Butoxors [25]3 years ago

4 0

Answer:

The answer would be C.

Step-by-step explanation:

You can tell that the triangle is a right angle by the box in the corner which makes it 90 degrees so 7x+11x would equal 90

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Help me please! i'm so confused!

marusya05 [52]

Answer:

12.4

Step-by-step explanation:

Use

$v = \frac{s}{t} \: \: formula$

where, s denotes distance

t= time

v= velocity

3 0

3 years ago

Determine the interest rate if $2300 invested at simple interest for 2 years earns $402.50 interest

Degger [83]

We would need to use the simple interest formula given by:

I = Prn

In this case, I = $402.50
P = $2300
N = 2 years

Sub these values into the equation,

402.50 = 2300 x r x 2
402.50 = 4600r

Divide both sides by 4600 to get r,

r = 0.0875

Multiply 0.0875 by 100 to get the percentage rate,

0.0875 x 100 = 8.75%

Hope this helped!

6 0

3 years ago

What is the cardinality of power set of A = {2,3,9,7,5}?

g100num [7]

Answer: 32

Step-by-step explanation:

When the set has <em>n</em> elements, the power set has $2^n$ elements. This also gives us the cardinality of the power set, which is what we are looking for.