MATHEMATICS HIGH SCHOOL

To the nearest whole degree, what angle measure has a cosine of 0.6725

Answers

Answer 1
Answer:

Answer:

x=48^(\circ)

Step-by-step explanation:

Let x be the angle

We are given that cosine x=0.6725

We have to find the value of x in degree

cosinx=0.6725

x=cos^(-1)(0.6725)

x=47.74^(\circ)

We have to nearest whole degree

Therefore, the angle x=48^(\circ)
Answer 2
Answer: CosФ = 0.6725

Ф = Cos⁻¹ (0.6725)          Use your calculator.

 Ф = 47.740 degrees

Ф ≈ 48° to the nearest whole degree.

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The sum of two numbers is 30 & their difference is 12.

What is the value of b^2 0 4ac for the following equation?2x^2 0 2x 0 1 = 0
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12

Answers

2x^2 - 2x - 1 = 0 a = 2, b = -2, c = -1 b^2 - 4ac = (-2)^2 - 4(2)(-1) = 4 + 8 = 12
so the answer is 12

Please help me what's the answers

Answers

Answer:

Step-by-step explanation:

from what i see the 3rd on the top is similiar- and perhaps the first on the top, And the first on the bottom row would be a not similiar because of a different shape? i dunno about the rest- sorry- hope that helps with the first few tho

Chloe drew 7 hearts, 20 stars and 9 circles what's the ratio of circles to hearts

Answers

A ratio simply means that you have to divide the two numbers. So, if there are 9 cicles and 7 hearts, the circles-to-heart ratio is

(9)/(7)

Answer:

9 : 7

Step-by-step explanation:

A ratio means for every something, there is something. The somethings are numbers.

The answer is 9 : 7

A bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of a blue marble, replacing it, and then picking a black marble?

8/75

4/45

1/9

Answers

There are 15 total marbles in the bag, of which 6 are blue nd 4 are black.

The probability of pulling a blue marble from the full bag is  6/15 .

The probability of pulling a black marble from the full bag is  4/15 .

The probability of both events happening is

             (6/15) x (4/15)  =  24/225 = 8/75

What can you conclude ?? Need answer soon

Answers

It is B 
You can conclude that M and L are parallel. 
                                                           I hope this helped

I need help! Will this would be very appreciated!pls

Answers

Answer:

No real

solution

Step-by-step explanation:

Firstly, let us check if we would be having a real solution

We start by rewriting the equation

We have this as;

8x^2 -25x + 24 = 0

We proceed to get the discriminant

Mathematically, we have this as;

D = b^2 - 4ac

b is the coefficient of x which is -25

a is the coefficient of x^2 which is 8

c is the last number which is 24

So we have;

D = (-25)^2 - 4(8)(24)

D = 625 - 768 = -143

Since the value of the discriminant is negative, there cannot be real roots

What we have as solution are complex roots

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Someone help me please