2 years ago

What is the supplement of an angle having a measure of 120 degrees?

Mathematics

1 answer:

kipiarov [429]2 years ago

5 0

The supplementary angle of 120° is 60°.
So your answer is 60 degrees.

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2cos(3pi/4) – 4 sin(7pi/6)

dangina [55]

Answer:

0.58578643762

Step-by-step explanation:

7 0

2 years ago

In this figure, sin(a) = 23

WITCHER [35]

$a$ and $b$ are complementary, or $b=\dfrac\pi2-a$ . So

$\cos b=\cos\left(\dfrac\pi2-a\right)=\sin a$

and so $\cos b=\dfrac23$ .

4 0

2 years ago

If Aldo puts 400 into a savings account that paid an interest rate of 5.4 percent What was the total amount in his account at th

Ne4ueva [31]

Answer:

$\$421.60$

Step-by-step explanation:

we know that

The simple interest formula is equal to

$A=P(1+rt)$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=1\ year\\ P=\$400\\ A=?\\r=5.4\%=5.4/100=0.054$

substitute in the formula above

$A=400(1+0.054*1)$

$A=400(1.054)$

$A=\$421.60$

Remember that Interest is equal to

$I=A-P$

$I=\$421.60-\$400=\$21.60$

5 0

2 years ago

I need help on this one, I’ll really appreciate your hard work! :)

Y_Kistochka [10]

I believe it’s 1 lol

5 0

2 years ago

F(x) = 2x² + x at (-1, 1)

lord [1]

Answer:

$f(x) = 2 {x}^{2} + x \\ at \: that \: point \: given \: \: x = - 1 \\ f(x) = 2 {( - 1)}^{2} + ( - 1) \\ f(x) = 2 - 1 \\ f(x) = 1$

4 0

2 years ago