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Wewaii [24]
3 years ago
12

18/24 = b/12 Solve the proportion:

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
6 0

Answer:

b = 9

Step-by-step explanation:

simpilfy. 18/24 into denominater of 12 is going to be 9/12

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8_murik_8 [283]
The escape velocity on Mars' moon Phobos is about 11 m/s, or 25 mph. The body's mean diameter is 11 km (6.8 mi). Its smaller cousin, Demos, with a mean diameter of 6 km (3.7 mi), has an escape velocity of only 6.9 m/s (15 mph), meaning that you could probably jump right off it if you tried hard enough.
7 0
3 years ago
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Ln(x+5) + lnx=5 answer me fast
pashok25 [27]

Answer:

9.936

Step-by-step explanation:

In(x+5)*x=5

ln(x^2+5x)=5

e^5=x^2+5x

148.4131=x^2+5x

x^2+5x-148.4131=0

x is 9.936 because logs can't be negative

7 0
3 years ago
Jonathon and Samantha row their canoe 28 miles downstream in 2 hours. After a​ picnic, they row back upstream. After 3 hours the
dangina [55]

Answer: the speed at which Jonathon and Samantha can row in still water is 9 mph

Step-by-step explanation:

Let x represent the speed of the canoe in still water.

Let y represent the speed of the river's current.

Jonathon and Samantha row their canoe 28 miles downstream in 2 hours. Assuming they rowed with the current, the total speed would be (x + y) mph

Distance = speed × time

Distance travelled downstream is expressed as

28 = 2(x + y)

Dividing through by 2, it becomes

14 = x + y - - - - - - - -1

After a​ picnic, they row back upstream. After 3 hours they only travel 12 miles. Assuming they rowed against the current, the total speed would be (x - y) mph

Distance travelled upstream is expressed as

12 = 3(x - y)

Dividing through by 3, it becomes

4 = x - y - - - - - - - -2

Adding equation 1 and equation 2, it becomes

18 = 2y

y = 18/2

y = 9 mph

8 0
3 years ago
If you are given the graph of h(x) = log. x, how could you graph m(x) = log2(x+3)?
Agata [3.3K]

Answer:

Option (d).

Step-by-step explanation:

Note: The base of log is missing in h(x).

Consider the given functions are

h(x)=\log_2x

m(x)=\log_2(x+3)

The function m(x) can be written as

m(x)=h(x+3)           ...(1)

The translation is defined as

m(x)=h(x+a)+b           .... (2)

Where, a is horizontal shift and b is vertical shift.

If a>0, then the graph shifts a units left and if a<0, then the graph shifts a units right.

If b>0, then the graph shifts b units up and if b<0, then the graph shifts b units down.

On comparing (1) and (2), we get

a=3,b=0

Therefore, we have to translate each point of the graph of h(x) 3 units left to get the graph of m(x).

Hence, option (d) is correct.

3 0
3 years ago
The sides of a triangle are in the ratio 3 : 4 : 5. What is the length of each side if the perimeter of the triangle is 90 cm?
iogann1982 [59]
What we can do is set up an algebraic equation. 

our variable can me L for Length

3L+4L+5L=90

now all we have to do is solve

12L=90
----   ----
12      12

L=7.5

now multiple each number in the ratio by 7.5 to find out how long each side is

3 times 7.5 is 22.5
4 times 7.5 is 30
5 times 7.5 is 37.5

the side lengths are 22.5, 30, and 37.5
8 0
3 years ago
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