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2 years ago

Please help quickly!

Mathematics

2 answers:

bekas [8.4K]2 years ago

4 0

Answer:

the answer is 2.8

Step-by-step explanation:

Kay [80]2 years ago

3 0

Answer:

$x=4$

Step-by-step explanation:

Given:

$\frac{3x}{5} -0.5=1.9$

Add 0.5 to both sides

$\frac{3x}{5} =2.4$

Multiply 5 from both sides

$3x=12$

Divide both sides by 3

$x=4$

Hope this helps

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Let D be the event that a randomly chosen person has seen a dermatologist. Let S be the event that a randomly chosen person has

SSSSS [86.1K]

Given:

D be the event that a randomly chosen person has seen a dermatologist.

S be the event that a randomly chosen person has had surgery for skin cancer.

To find:

The correct notation for the probability that a randomly chosen person has had surgery for skin cancer, given that the person has seen a dermatologist.

Solution:

Conditional probability: Probability of A given B is:

$P(A|B)=\dfrac{P(A\cap B)}{P(B)}$

Let D be the event that a randomly chosen person has seen a dermatologist.

Let S be the event that a randomly chosen person has had surgery for skin cancer.

Using the conditional probability, the correct notation for the probability that a randomly chosen person has had surgery for skin cancer, given that the person has seen a dermatologist is P(S|D).

Therefore, the correct option is D.

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2 years ago

The length of the radius is ____ cm.

balu736 [363]

Answer:

Step-by-step explanation:

8 0

3 years ago

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Graph the equation y= x^2 - 2x - 8 on the accompanying set of axes. You must plot 5 points including the roots and the vertex.

Vanyuwa [196]

Answer:

I'm not so sure about this one so sorry if this is wrong

Step-by-step explanation:

7 0

3 years ago

A meteorologist measures the angle of elevation of a weather balloon is 41 degrees. A radio signal from the balloon indicates th

I am Lyosha [343]

You can draw a diagram of the situation, representing it by a right triuangle.

In the right triangle the hypotenuse is the distance indicated by the radio signal, 1503 m, and the angle is 41°.

The opposed leg to 41° is the height of the ballon.

Then you can use the sine trigonometric function.

sine (41°) = opposed leg / hypotenuse = x / 1503 m => x = 1503m * sine(41°)

=> x = 986m.

Answer: 986m

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3 years ago

Please help guys!!!!!!!!!!!!!!

hram777 [196]

Answer:

a) x = -10

b) x = 7

Step-by-step explanation:

2(x + 3) = x - 4

2x + 6 = x - 4

2x - x = -4 - 6

x = -10

4(5x - 2) = 2(9x + 3)

20x - 8 = 18x + 6

20x - 18x = 6 + 8

2x = 14

x = 7

7 0

2 years ago

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