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4 years ago

BEEEP Hhh, Math sucks ;-;

Mathematics

2 answers:

Alex4 years ago

8 0

Answer:

A is the answer.

Step-by-step explanation:

C=2πr

/2π /2π

C/2π=r

inessss [21]4 years ago

3 0

Answer:

A. $r \: = \frac{C}{2\pi}$

Step-by-step explanation:

$\huge C = 2\pi r \\ \\ \huge \red{ r \: = \frac{C}{2\pi} }$

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Pls solve for k see picture below

Anastaziya [24]

Answer:

Hope you will understand and it will help you

6 0

4 years ago

Select all of the following functions that are quadratic.

raketka [301]

Answer:

A. Y= 2x^2 and D. y+3x=2x^2-8

Step-by-step explanation:

3 0

4 years ago

Calculate the side lengths a and b to two decimal places.

navik [9.2K]

Answer:

D. a = 11.71 and b = 15.56

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Trigonometry

All angles in a triangle add up to 180°

Pre-Calculus

Law of Sines: $\frac{sin(A)}{a} =\frac{sin(B)}{b} =\frac{sin(C)}{c}$

Step-by-step explanation:

Step 1: Define

AC = b

CB = a

AB = 7

m∠A = 45°

m∠B = 110°

m∠C = ?

Step 2: Find missing ∠

Set up equation: m∠C + 45° + 110° = 180°
Combine like terms: m∠C + 115° = 180°
Isolate unknown: m∠C = 25°

Step 3: Find measure of b

Substitute: $\frac{sin(25)}{7} =\frac{sin(110)}{b}$
Cross-multiply: $bsin(25)=7sin(110)$
Isolate b: $b=\frac{7sin(110)}{sin(25)}$
Evaluate: $b=15.5645$
Round: $b \approx 15.56$

Step 4: Find measure of a

Substitute: $\frac{sin(25)}{7} =\frac{sin(45)}{a}$
Cross-multiply: $asin(25)=7sin(45)$
Isolate a: $a=\frac{7sin(45)}{sin(25)}$
Evaluate: $a=11.7121$
Round: $a \approx 11.71$

6 0

3 years ago

Describe the likelihood of the event given its probability.

slavikrds [6]

Answer:

this makes no sense because there is no like out of, meaning it arrives late out of how many days? like how many days has i been since it arrives late 27 times?

Step-by-step explanation:

6 0

3 years ago

Which ordered pair is a solution to the system?

almond37 [142]

Answer:

I think it is C 8,-4

Step-by-step explanation:

I think

8 0

3 years ago