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3 years ago

A circular picture is 8 inches in diameter.

Mathematics

1 answer:

tino4ka555 [31]3 years ago

4 0

For number one I would say c or b for part b I would say it would be b or d but I could be wrong I am sorry if I am

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Rewrite as a mathematical equation and solve: 3 less than the product of 5 and a number is 42. Find the number.

Temka [501]

5x-3=42. To solve you add three to both sides making the equation 5x=45. Then you divide both sides by five, and you get 9 as your answer.

8 0

3 years ago

Arithmetic and geometric

NISA [10]

I don’t understand the question

7 0

3 years ago

What is the reference angle for 192º?

Aleonysh [2.5K]

Answer:

78º

Step-by-step explanation:

Note : -

In mathematics, the reference angle is defined as the acute angle and it is measuring less than 90 degrees. It is always the smallest angle, and it makes the terminal side of an angle with the

x - axis.

Step 1 : -

Find where 192º lies in which quadrant.

192º lies in 3rd quadrant ( between

180º and 270º )

Step 2 : -

Subtract : 270 - 192

270 - 192 = 78º

( Since, 192º is greater than 180º, is subtracted from 270º )

Answer : -

78º is the reference angle for 192º.

3 0

2 years ago

Surface area of 8in,4in,14in

andriy [413]

Answer:

160 in^2.

Step-by-step explanation:

I guess this is a prism with 6 faces so the surface area is:

2 * 8 * 4 + 2 * 8*4 + 2*4*4

= 64 + 64 + 32

= 160 in^2.

7 0

3 years ago

Hey need some help quick

Goryan [66]

If $z=\pm 15i$ has to be a solution of the equation, just plug it in:

$(\pm 15i)^2 + [1] = 0 \iff -225 + [1] = 0 \iff [1] = 225$

So, the solutions of

$z^2+225=0$

are $z=\pm 15i$

7 0

3 years ago