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vitfil [10]
3 years ago
11

How to solve this question please helpp!!!!!! Q1. cos -1 ( - √3/2 )

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
6 0

Answer:

cos(\sqrt{\frac{3}{2} }) or 0.339

Step-by-step explanation:

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Please answer correctly! I will mark you as Brainliest!
zheka24 [161]

Answer:

the height is 9.8 cm

Step-by-step explanation:

71.54 ÷ 7.3 = 9.8

6 0
3 years ago
Tessa bought stock in a restaurant for $246.00 Her stock is now worth $297 66 What is the percentage increase of the value of Te
Ira Lisetskai [31]

The percentage increase of the value of Tessa's stock is 21%.

<h3>Percentage increase</h3>

Using this formula

Percentage increase=Current stock worth-Old stock worth/Old stock worth

Where:

Current stock worth=$297.66

Old stock worth=$246.00

Let plug in the formula

Percentage increase=$297.66 - $246.00 / 246.00 × 100

Percentage increase=$51.66/ 246.00 × 100

Percentage increase=21%

Inconclusion the percentage increase of the value of Tessa's stock is 21%.

Learn more about percentage increase  here:brainly.com/question/11360390

8 0
2 years ago
QUESTION 20
Elodia [21]

Answer:

B. -55

Step-by-step explanation:

La resta entre ambas funciones consiste en la sustracción de términos semejantes como demostraremos a continuación:

1) f(x) =-2\cdot x ^{2}-6 Dado

2) g(x) = x+4 Dado

3) (f-g)(x) = (-2\cdot x^{2}-6)-(x+4) Definición de resta de funciones.

4) (f-g)(x) = (-2\cdot x^{2}-6)+(-1) \cdot (x+4)        (-1)\cdot a = -a

5) (f-g)(x) = (-2\cdot x^{2}-6) + (-x-4) Propiedad distributiva/(-1)\cdot a = -a

6) (f-g)(x) = -2\cdot x^{2}-x+(-6-4) Propiedad conmutativa

7) (f-g) (x) = -2\cdot x^{2}-x-10 Sustracción de términos semejantes/Resultados.

A continuación, evaluamos la función resultante en x = -5:

(f-g)(-5) = -2\cdot (-5)^{2}-(-5)-10

(f-g)(-5) =-55

Por ende, la respuesta correcta es B.

8 0
3 years ago
Solve for w, x, and y. Show your work.
sveta [45]

First of all, the left triangle is an equilateral triangle. Which means that all the interior angles are 60 degrees.

4w=60

w=15

Then all 3 sides are equal thus we can set up equation 3x-y=4y then simplify,

3x=5y

Going to the triangle on the right its isosceles we can set up equation 2x+50=180

2x=130

x=75

Substitute this back into equation above 3x=5y

5y=3*75

y=45

Therefore

x=75

y=45

w=15

Done!

5 0
3 years ago
A runner can travel 100 meters in 20 seconds. At that rate, how far does the runner go in 1 minute?
dimaraw [331]

Answer:

he can run 5 meters in 1 min

Step-by-step explanation:

S = d/t

S=100m/20s

S=5m/s

8 0
3 years ago
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