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3 years ago

Find the exact value of sin(4π3+π4)

Mathematics

1 answer:

iren2701 [21]3 years ago

8 0

<h3>Equation Step by Step</h3>

sin(4(3.141593^3)+3.141593^4)

sin((4)(31.006277)+3.141593^4)

sin(124.025107+3.1415934)

in(124.025107+97.409091)

sin(221.434198)

=0.998844

Tbh, might be wrong on this one. I'm on the road so didn't double-check my answer.

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2.74 as a mix number

Inga [223]

Answer:

2 74/100

Step-by-step explanation:

6 0

3 years ago

What property is [9 + (-9)] + (10x - 6x) + 3?

Roman55 [17]

So you're looking for the answer? If so, it is -3/4

5 0

3 years ago

Simplify this equation, also what is the sign beside 150 and what does it do

Solnce55 [7]

Answer:

<h2>hope it helps you see the attachment for further information ✌✌✌✌✌</h2>

6 0

3 years ago

If you add natalie's age and fred's age, the result is 43. if you add fred's age to 44 times natalie's age, the result is 88

Pavel [41]

Let Natalie be x, and Fred, y.
So based on 1st condition, we get
x + y =43 - Equation 1
â´ x = 43-y - Equation 2
Now based on 2nd condition, we get
44x+y=88
Using x from Equation 2, we get
44(43-y) + y = 88
â´ 44x43 - 44y + y = 88
â´ 1892 -44y + y = 88
â´ -44y + y = 88 - 1892
â´ 43y =1804
â´ y = 1804/43
â´ y = 41.95

Using the value of y in Equation 2
x = 43 - 41.95
â´ x = 1.05

So Natalie is 1.05 yrs and Fred is 41.95 yrs old.

8 0

3 years ago

1) If the perimeter of triangle STU is 125 cm, and segments TW, VW, and VT measure 21 cm, 30 cm, and 24 cm, respectively, what i

liq [111]

GIVEN: The perimeter of triangle STU is 125.

The segments TW=21 cm

VW=30 cm

VT=24 cm

TO FIND: The length of the segment SU.

SOLUTION:

As corresponding sides must be same. so we have,

$\frac{TV}{TS}=\frac{TW}{TU}\\\\ \frac{24}{TS}=\frac{21}{TU}\\\frac{TU}{TS}=\frac{7}{8}=k(say)\\$

Then, TU=7k and TS=8k

$\frac{TV}{TS}=\frac{VW}{SU}\\\\ \frac{24}{TS}=\frac{30}{SU}\\\frac{24}{8k}=\frac{30}{SU}\\SU=10k$

As the perimeter of triangle STU is 125.

so,

8·k+7·k+10·k=125

⇒25.k=125

⇒k=5

Therefore, SU=10×5=50

4 0

3 years ago