3 years ago

Cos 0 = 4/5 and sin 0 < 0. Identify the quadrant of the terminal side of 0 and find sin 0

Mathematics

1 answer:

algol133 years ago

7 0

Answer:

B. quadrant IV, sin 0 = -3/5

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Roberto decorates rectangular signs. One sign is 2/3 foot long and 1/4 foot wide. Another sign is 1/2 foot long and 1/3 foot wid

nordsb [41]

Answer: It takes Him 1/4 hours to decorate both signs,

Step-by-step explanation:

Hi, since the area of a rectangle is equal to:

Area: length x width

Replacing with the values given;

Sign 1 =A1 = 2/3 x 1/4 =1/6 ft2

Sign 2 =A2= 1/2 x 1/3 = 1/6 ft2

If we sum both areas:

A1 +A2 = 1/6 + 1/6 = 2/6 ft2 = 1/3 ft2 (total area)

Since it takes Roberto 3/4 hour to decorate a 1-square-foot sign:

For 1/3 ft2

3/4 hour x 1/3 ft2 = 1/4 h

ITt takes Him 1/4 hours to decorate both signs,

3 0

3 years ago

X^2 - 81y^2 can someone please answer this ?

harina [27]

Answer:

Since both terms are perfect squares, factor using the difference of squares formula.

(x+9y)(x−9y)

7 0

3 years ago

Read 2 more answers

(-19+7i)-(29+32i)= in the form (a+bi)

olga_2 [115]

ANSWER

$-48-25i$

EXPLANATION

We want to simplify the expression,

$(-19+7i) - (29+32i)$

Let us expand the bracket to obtain,

$-19+7i-29-32i$

We now group the complex number parts and real number parts.

$-19 -29+7i-32i$

We simplify further to obtain,

$- 48-25i$

This is in the form,

$a+bi$

where

$a=-48$

and

$b=-25$