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2 years ago

BRAINLIEST TO CORRECT

Mathematics

2 answers:

GarryVolchara [31]2 years ago

4 0

Since the common denominator is the same, ignore the 2 and do -4/5-2/5= -6/5

-6/5 as a mixed number is -1 1/5. Add the 2 to the 1 and you get: -3 1/5

Another method:

Make everything an improper fraction:
-14/5-2/5 = -16/5= -3 1/5

xxMikexx [17]2 years ago

3 0

Answer:

-16/5

Alternate form

-3 1/5, -3.2

Step-by-step explanation:

-2 4/5 + (-2/5)

Convert the mixed number to an improper fraction

-14/5 + ( -2/5)

When there is a + in front of an expression in parentheses, the expression remains the same

-14/5 - 2/5

Calculate the difference

-16/5

Solution

-16/5

Alternate form

-3 1/5, -3.2

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Suppose that you have eight cards. Five are green and three are yellow. The five green cards are numbered 1, 2, 3, 4, and 5. The

Marina86 [1]

Answer:

Step-by-step explanation:

Given that you have eight cards. Five are green and three are yellow. The five green cards are numbered 1, 2, 3, 4, and 5. The three yellow cards are numbered 1, 2, and 3. The cards are well shuffled. You randomly draw one card.

G = card drawn is green

Y = card drawn is yellow

E = card drawn is even-numbered

List:

Sample space = {G1, G2, G3, G4, G5, Y1, Y2, Y3}

2) P(G) = 5/8

3) P(G/E) = P(GE)/P(E)

GE = {G2, G4}

Hence P(G/E) = 2/5

4) GE = {G2, G4}

P(GE) = 2/8 = 1/4

5) P(G or E) = P(G)+P(E)-P(GE)

= 5/8 + 3/8-2/8 = 3/5

6) No there is common element as G2 and G4

Cannot be mutually exclusive

6 0

3 years ago

Find x. Round your answer to the nearest tenth of a degree . Please help I will mark brainliest

Oksana_A [137]

Using trigonometric ratio, the value of x is 63.6°

<h3>Trigonometric Ratio</h3>

This is the ratios of sides of a right-angled triangle with respect to any of its acute angles are known as the trigonometric ratios of that particular angle.

Trigonometric ratio are often coined as SOHCAHTOA

In the given triangle, we need to find the value of x using trigonomtric ratio.

Since we have the value of adjacent and hypothenuse, we definitely need to use cosine

cosθ = adjacent / hypothenuse

adjacent = 4

hypothenuse = 9

Substituting the values into the equation;

cos θ = 4 / 9

cos θ = 0.444

θ = cos⁻¹ 0.4444

θ = 63.6°

Learn more on trigonometric ratio here;