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KiRa [710]
3 years ago
13

Please help me on this math homework.Its trigonometry identities.

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
3 0

Step-by-step explanation:

Both questions solved

i hope its very useful for u

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A tourist starts to walk up a mountain path that is 31 miles long at the rate of 4 miles per hour. After walking for a while, he
Sunny_sXe [5.5K]

Answer:

He pays to the cab driver for 25 miles.

Step-by-step explanation:

Consider the provided information.

Let us consider he walks x miles at the rate of 4 miles per hour.

As we know Time=\frac{Distance}{Speed}

Therefore, time taken is: Time=\frac{x}{4}

He get a taxi for (31-x) miles at the rate of 50 miles per hour.

Therefore, time taken is: Time=\frac{31-x}{50}

It took 2 hours after he started.

That means the sum of time take is 2 hours.

\frac{x}{4}+\frac{31-x}{50}=2

\frac{25x+62-2x}{100}= 2

23x+62= 200

23x= 138

x= 6

Hence he walk 6 miles and he get a taxi for 31-6=25 miles.

He pays to the cab driver for 25 miles.

5 0
3 years ago
Nearest interger of 10
hjlf

Answer:

9 or 11

Step-by-step explanation:

These are the answers because:

1) The number before 10 and after 10 is 9 and 11

Therefore, the answer is 9 or 11

Hope this helps!

6 0
3 years ago
A copper key is placed in a cylindrical container with a 3-cm diameter. The water level rises from 14 cm to 14.6 cm. What is the
Tomtit [17]

Answer:

The volume is about 4.24 cm^3.

Step-by-step explanation:

From the question we are told that:

Diameterd= 3-cm

Radius r=d/2=>1.5cm

Height risen14.6-14=0.6cm

Generally the equation for Volume of a Key is mathematically given by

Since Volume of a cylinder is Given as

V=\pir^2h

Therefore

V=\pi*1.5^2*0.6

V=4.2417\\\\V=4.24 cm^3

Correct Option A

The volume is about 4.24 cm^3.

3 0
3 years ago
Help me with this plz
son4ous [18]

Answer:

2x²+ 7x + 12

Step-by-step explanation:

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

2x²+ 10x - 3x +12

2x²+ 7x + 12

8 0
2 years ago
Read 2 more answers
Number 17 please. Need to know how to take the info and make it into a slope intercept equation.
Oksi-84 [34.3K]

Answer:

y = 5x -15

Step-by-step explanation:

slope/y-int from = y =mx+b

slope = y2-y1/x2-x2

slope = 0--15 / 3-0

slope = 15 / 3

slope = 5

y-int = -15

y = 5x-15

7 0
3 years ago
Read 2 more answers
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