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3 years ago

Plz help I dont know. will mark brainliest if correct

Mathematics

2 answers:

Natali [406]3 years ago

5 0

Answer:

$\huge\boxed{\sf C.}$

Step-by-step explanation:

Slope 1 = 2 / 3

Slope 2 = -3/2

Multiplication of slopes:

= $\sf \frac{2}{3} * \frac{-3}{2}$

= -1

Multiplication of these slopes have a result of -1. This means that the two lines are perpendicular.

$\rule[225]{225}{2}$

Hope this helped!

~AH1807

Veronika [31]3 years ago

3 0

Answer:b

Step-by-step explanation:

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You spin each spinner once. You get $50 if you spin a 2 and a vowel. You get $25 if you spin a 2 and a consonant. You get $5 if

Tom [10]

The expected value of the game is $8.75.

----------------------

The expected value is the sum of each outcome multiplied by it's probability.
A probability is the number of desired outcomes divided by the number of total outcomes.

The probability of spinning a 2 and a vowel is: $\frac{1}{4} \times \frac{2}{8} = \frac{2}{32}$ .
Thus, $\frac{2}{32}$ probability of getting $50.

The probability of spinning 2 and a consonant is: $\frac{1}{4} \times \frac{6}{8} = \frac{6}{32}$

Thus, $\frac{6}{32}$ probability of getting $25.

The probability of spinning 1 and a vowel is: $\frac{3}{4} \times \frac{2}{8} = \frac{6}{32}$ .
Thus, $\frac{6}{32}$ probability of getting $5.

32 - (6 + 6 + 2) = 18, thus, $\frac{18}{32}$ probability of earning $0.

The expected value is:

$E = \frac{2}{32}(50) + \frac{6}{32}(25) + \frac{6}{32}(5) + \frac{18}{32}(0)$

$E = \frac{100 + 150 + 30}{32}$

$E = \frac{280}{32}$

$E = 8.75$

The expected value of this game is of $8.75.

A similar problem is given at brainly.com/question/24961584

8 0

3 years ago

Ali's dog weighs 8 times as much as her cat. Together, the two pets weigh 54 pounds. How much does Ali's dog weigh?

Ilya [14]

I did 54/8 because you are multiplying D×8 and the product of 54/8= 6.75 so yeah the answer is 6.75

4 0

3 years ago

Sonia received a statement on her Certificate of Deposit showing that her investment had returned $4,320 over its life. If the C

bija089 [108]

Answer:

The correct answer is -7.5 years.

Step-by-step explanation:

Given:

Principle amount = 12000

Interest = 4320

time = ?

rate = 4.8 simple interest

Solution:

We know that simple Interest I = (P*t*r)/100

then t = I*100/p*r

putting values in formula:

t = 4320*100/4.8*12000

= 432000/57,600

= 7.5 years

6 0

3 years ago

Select the correct answer. This graph represents a quadratic function. What is the value of a in this function’s equation?

Aloiza [94]

Answer:

i'm not sure but i think the answer is D

Step-by-step explanation:

the answer will be either A or D because the shape of the graph shows that the value of a is negative

6 0

3 years ago

Tina has eight packs of paper each of her packs contain 50 sheets. Caz has three packs of paper each of his packs contain 125 sh

Vesna [10]

Answer:

i think the question is incomplete but

Tina at an average contains each package of

50 sheets ÷ 8 pack

6.205 of sheet in each pack

125 sheets ÷ 3 packs

caz contain at average 41.60 sheet average

but where the juan packs of paper that's why question is incomplete

7 0

3 years ago

Plz help I dont know. will mark brainliest if correct ​

Plz help I dont know. will mark brainliest if correct