Caculate the average rate of movement of the volcanic ash for the first 15 hours

Answers

Answer 1

Answer:

Answer:Average rate of movement = 6.67 km/h

Step-by-step explanation:

Therefore, the average rate of movement of the volcanic ash for the first 15 hours is 6.67 kilometers per hour.

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A victim of phishing would most likely be contacted in which of these ways. A. In person b. By computer c. By telephone. D by fax.... I think its a but not sure
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point v is located at (-2,6) on the coordinate plane. Point V is reflected over the y-axis to create point V Poinr v is then reflected over the x axis to create point V What ordered pair describes the location of V

Answers

Shouldn’t it be (2,-6), might be wrong. All points can be Point V, else they’ll be the same (I’m in geo only).

Which phrases correctly describe the location of –34 on the number line?

Choose exactly two answers that are correct. A. to the right of –21 B. to the left of –63 C. to the left of –28 D. to the right of –35

Answers

A is wrong because -34 would be on the left of -21.

B is also wrong because -34 would be to the right of -63.

C is correct because -34 is to the left of -28

D is also correct because -34 is to the right of -35.

Jenny is on the local swim team for the summer and has swim practice four days per week. The schedule is the same each day. The team swims in the morning and then again for 2 hours in the evening. If she swims 20 hours per week, how long does she swim each morning?

Answers

Answer:

Number of hours Jenny swims each morning = 3 hours

Step-by-step explanation:

Let Jenny swims 'x' hours in the morning each day.

She swims 2 hours in the evening too.

Total hours she swims each day = (x + 2) hours

If her team swims 4 hours per week then number of hours she swims = 4(x + 2)

If she swims 20 hours in a week then,

4(x + 2) = 20

(x + 2) = 5

x = 5 - 2

x = 3 hours

Therefore, Jenny swims 3 hours each morning.

Which of these is a simplified form of the equation 8y + 6 = 7 + 2y + 3y?3y = 1
8y = 6
13y = 13
5y = 13

Answers

8y+6=7+2y+3y

8y+6=7+5y

3y+6=7

3y=1

Practice simplifying rational expressions with negative exponents.

Answers

Answer:

Part 1:- option first is correct

$-(1)/(2)ab^(12)$

Part 1:- option third is correct

$(w^(10))/(3y^(4))$

Step-by-step explanation:

Given:

The given ration expressions are.

1. $(-2a^(2)b^(4))/(4ab^(-8))$

2. $(-5w^(4)y^(-2))/(-15w^(-6)y^(2))$

We need to simplify the given expressions.

Solution:

Part 1:-

Given expression is

$=(-2a^(2)b^(4))/(4ab^(-8))$

Using law of exponents $(x^(m) )/(x^(n) ) = x^((m-n))$

$=-(a^(2-1)b^(4-(-8)))/(2)$

$=-(a^(1)b^(4+8))/(2)$

$=-(ab^(12))/(2)$

$=-(1)/(2)ab^(12)$

Therefore, option first $-(1)/(2)ab^(12)$ is correct.

Part 2:-

Given expression is.

$=(-5w^(4)y^(-2))/(-15w^(-6)y^(2))$

Using law of exponents $(x^(m) )/(x^(n) ) = x^((m-n))$

$=(w^(4-(-6))y^(-2-2))/(3)$

$=(w^(4+6)y^(-4))/(3)$

$=(w^(10)y^(-4))/(3)$

$=(w^(10))/(3y^(4))$

Therefore, third option $(w^(10))/(3y^(4))$ is correct.

A randomly generated list of numbers from 0 to 4 is being used to simulate an event, with the numbers 3 and 4 representing a success. What is the estimated probability of a success?

Answers

Answer:

40%

Step-by-step explanation:

a.p.e.x

2/4=1/2 because 3 and 4 are 2 of four numbers

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Write an equation of the direct variation that includes the point (-10,-17).