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2 years ago

Multiple choice question! Very important! Algebra!

Mathematics

1 answer:

Murljashka [212]2 years ago

5 0

I think the answer is A. Or the answer is A.
Try downloading the app Socratic it like Brainly but I think it’s more helpful

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OLEGan [10]

Answer:

$\cos\ A = \frac{2}{4.5}$

Step-by-step explanation:

Given

$sin\ A = \frac{2}{4.5}$

See attachment

Required

Explain and correct the error

The error in the equation is that: the formula of cosine of angle A is used to calculate the sine of angle A.

The ratio can be corrected as by using:

$\cos\ A = \frac{Adjacent}{Hypotenuse}$

$\cos\ A = \frac{AC}{AB}$

$\cos\ A = \frac{2}{4.5}$

8 0

3 years ago

The equation of a circle whose center is at ( 4,0 ) and radius is length 2 ( square root ) 3

Vesna [10]

The equation of a circle:
$(x-h)^2+(y-k)^2=r^2$
(h,k) - the coordinates of the center
r - the radius

The center is (4,0), the length of the radius is 2√3.
$(x-4)^2+(y-0)^2=(2\sqrt{3})^2 \\
\boxed{(x-4)^2+y^2=12}$

8 0

2 years ago

Read 2 more answers

Giving 30 POINTS TO ANSWER

harkovskaia [24]

Answer: the chiled is 3 years old

Step-by-step explanation:

3 0

2 years ago

Explain the difference between 331/3% and 33%

Scrat [10]

1/3 and 33.3 percent are nearly equivalent. 1/3 is actually equal to 33.33333333% (with never ending 3s at the end), so 1/3 is slightly greater than 33.3% (which has only one 3 after the decimal place).

7 0

3 years ago

A tennis club has 560 members.

enyata [817]

Answer:

see explanation

Step-by-step explanation:

sum the parts of the ratio, 5 + 6 + 3 = 14 parts

Divide number of members by 14 to find the value of one part of the ratio.

560 ÷ 14 = 40 ← value of 1 part of the ratio

(i)

number of women = 6 × 40 = 240

(ii)

number of children = 3 × 40 = 120

8 0

3 years ago