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3 years ago

Sin 30*=square root 3/2 true or false

Mathematics

1 answer:

Sphinxa [80]3 years ago

5 0

Answer:

Step-by-step explanation:

Sin(30o) = 0.5 or 1/2

Sin(60o) = sqrt(3)/2

So the statement is false

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Columbia Theater Company reviewed their receipts from opening weekend. They sold 83 adult tickets and 42 child tickets on Friday

slava [35]

Answer:

If 48 adults and 26 children attended the matinee on Sunday, the theater raised $ 514 from ticket sales.

Step-by-step explanation:

A system of linear equations is a set of linear equations that have more than one unknown, which are related through the equations.

In this case, being:

A: adult ticket price
C: child ticket price.

The system of equations is:

$\left \{ {{83*A+42*C=874} \atop {102*A+67*C=1151}} \right.$

The substitution method consists of isolating one of the two unknowns in one equation to replace it in the other equation. In this case you isolate C from the first equation:

83*A + 42*C= 874

42*C= 874 - 83*A

$C=\frac{874 - 83*A}{42}$

Substituting this expression in the second equation:

$102*A + 67*\frac{874 - 83*A}{42}= 1151$

and solving:

$102*A + \frac{67}{42} *(874 - 83*A)= 1151$

Multiply through by 42

$42*102*A + 42*\frac{67}{42} *(874 - 83*A)= 42*1151$

4,284*A + 67*(874-83*A)= 48,342

4,284*A + 58,558 - 5,561*A= 48,342

4,284*A - 5,561*A= 48,342 - 58,558

-1,277*A= -10,216

$A=\frac{-10,216}{-1,277}$

A= 8

Knowing that: $C=\frac{874 - 83*A}{42}$ then:

$C=\frac{874 - 83*8}{42}$

$C=\frac{874 - 664}{42}$

$C=\frac{210}{42}$

C= 5

The price of an adult ticket is $8 and a child is $5. If 48 adults and 26 children attended the matinee on Sunday, then:

$8*48 adults + $5* 26 childen= $514

If 48 adults and 26 children attended the matinee on Sunday, the theater raised $ 514 from ticket sales.

5 0

3 years ago

Is -37/17 equal to -10

algol [13]

No, it would be -2.176470588 or rounded to -2.18

i used a scientific calculator to get the answer

8 0

3 years ago

Keenan gives Tisha half of his strawberries. Tisha keeps 4 of the strawberries she hit from Keenan and gives the rest to suvi. W

Darya [45]

Let’s say that Keenan give Tisha 8 of the 16 strawberries he had. So Tisha kept 4 of the 8 strawberries she got from Keenan and gave the rest to Suvi. The expression could be written like this: 16-8=8-4=4

8 0

3 years ago

PLEASEEEE HELPPPPPPPPPPP

poizon [28]

Angle MNP is correspondent to angle LKI

5 0

2 years ago

On a floor plan drawn at a scale of 1:100, the area of a rectangular room is 30

Troyanec [42]

Assume that the dimensions of the room in the plan are a (width ) by b (length),

such that a*b=30.

Since the scale is 1:100, a represents 100a, and b represents 100b.

So the actual dimensions are 100a by 100b.

The area is 100a*100b=a*b*10,000=30*10,000=300,000 (square units)

Answer: 300,000 (square units)

8 0

3 years ago