admin

2 months ago

Guest #9219

2 months ago

Here, we can make 2 points

30 feet below the surface of water 10 seconds after he entered the water

100 feet below the surface of water after 40 seconds

So, we have (10,30) and (40,100)

Slope = y2-y1 / x2-x1

So, lets substitute the values of the slope

m = (100-30)/ (40-10)

= 70/30

= 7/3

**m = 2 1/3 or 2.33**

30 feet below the surface of water 10 seconds after he entered the water

100 feet below the surface of water after 40 seconds

So, we have (10,30) and (40,100)

Slope = y2-y1 / x2-x1

So, lets substitute the values of the slope

m = (100-30)/ (40-10)

= 70/30

= 7/3

Question

Which angle is coterminal with 153°

Solution 1

It will be:

**Positive **Cotermintal Angles - **513** & **873**

and

**Negative **Coterminal Angles - **-207 **& **-567**

Question

Evaluate the expression. If necessary, round to the nearest hundredth.
log 2.8

Solution 1

the answer is 0.447158 and rounded it is 0.45

Solution 2

I got .45, I'm not sure if this is right but I hope it helps!

Question

Find the value of x in each of the following:
Please explain how you got your answer(s), thanks!

Solution 1

The first one: x is 3 because 3 x 3 x 3 is 27

the second one: x is 1/64 because the denominator, 4, to the power of 3 is 64. Anything rad 1 will always be 1, ∛64 is 4.

the third one: x is 1/8 because 8 x 8 x 8 which is the same thing as 8^3 is 512.

∛1/512 (1 divided or multiplied by 1 is always going to be 1)

the fourth one: x is 1331, I know this because I did, 11 x 11 x 11 to get 1331.

Let me know if this doesn't make sense

the second one: x is 1/64 because the denominator, 4, to the power of 3 is 64. Anything rad 1 will always be 1, ∛64 is 4.

the third one: x is 1/8 because 8 x 8 x 8 which is the same thing as 8^3 is 512.

∛1/512 (1 divided or multiplied by 1 is always going to be 1)

the fourth one: x is 1331, I know this because I did, 11 x 11 x 11 to get 1331.

Let me know if this doesn't make sense

Question

Write your question here (Keep it simple and clear to get the best answer)the medal zena won for athletics consists of silver and brass in the ratio 3:5.if the medal has a mass of 200g how do i calculate the mass of the silver?

Solution 1

Silver : brass = 3 : 5

Lets take the value as x

Therefore, 3x+5x = 200 ( since the mass of the medal is 200 g )

8x = 200

x = 200/8

= 25

The mass of silver = 3x

= 3*25

=**75 g**

Lets take the value as x

Therefore, 3x+5x = 200 ( since the mass of the medal is 200 g )

8x = 200

x = 200/8

= 25

The mass of silver = 3x

= 3*25

=

Solution 2

Silver : brass = 3 : 5

Lets take the value as x

Therefore, 3x+5x = 200 ( since the mass of the medal is 200 g )

8x = 200

x = 200/8

= 25

The mass of silver = 3x

= 3*25

= 75 g

Question

Robert drove at an average speed of 60 miles per hour for 6 hours. Nancy drove for 7 hours at an average speed of 56 miles per hour. Which method shows a way to calculate the difference in the distances they drove? A.Step 1 Divide: 60 ÷ 6.Step 2 Divide: 56 ÷ 7. Step 3 Subtract the two quotients. B.Step 1 Divide: 60 ÷ 6. Step 2 Divide: 56 ÷ 7. Step 3 Add the two quotients. C.Step 1 Multiply: 60 × 6. Step 2 Multiply: 56 × 7. Step 3 Add the two products. D.Step 1 Multiply: 60 × 6. Step 2 Multiply: 56 × 7. Step 3 Subtract the two products.

Solution 1

A)1. 60/6=10

2. 56/7=8

3. 10-8=2

B)1.10

2.8

3.10+8=18

C)1. 360

2.392

3. 360+392=752

D)1. 360

2. 392

3. 360-392=-32

2. 56/7=8

3. 10-8=2

B)1.10

2.8

3.10+8=18

C)1. 360

2.392

3. 360+392=752

D)1. 360

2. 392

3. 360-392=-32

Question

PLEASE HELP! In college, you earn credits for courses taken. For each semester, tuition at a local college is $2400, plus $184 per credit. You have financial aid that will cover $5,160 for the semester. How many credits can you take without spending any of our own money?

Solution 1

15 because 5,160-2400=2,760, then 2760/184

Question

A car can go 310 on 20 gallons gas. What’s your cars gas mileage ( miles per gallon). How far could you drive on 55 gallons of gas

Solution 1

Your gas mileage is 15.5 miles to the gallon. On 55 gallons of gas, you could drive 852.5 miles

Question

A rectangular prism has length x+2, width x+1, height 4, and volume 24. Find the length and the width.

Solution 1

The length is 3 and the width is 2. 3 × 2 × 4 = 24

Question

The half-life of carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only 66% of the carbon-14 expected in living matter, when did the tree die?

Solution 1

The tree died 3696 years ago because 66x5600=369600/10=3696.

Question

SOME ONE PLEASE HELP Determine the sum: (9r3s2t − 4r2s2t2 − 6rs2t3) + (−4r3s2t + 8rs2t3). A. 3r10s10t10
B. −r3s2t + 4rs2t3
C. 5r6s4t2 − 4r2s2t2 + 2r2s4t6
D. 5r3s2t − 4r2s2t2 + 2rs2t3

Solution 1

The answer is

5r3s2t−4r2s2t2+2rs2t3

5r3s2t−4r2s2t2+2rs2t3

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