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3 years ago

Find the value of X. Please show work.

Mathematics

1 answer:

OverLord2011 [107]3 years ago

8 0

Answer:

x=11.2

Step-by-step explanation:

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Use the information given to correctly complete the sentence.

IRISSAK [1]

Explanation: 54 yards is about 162 feet, and since we are converting measurements we need this ( duh ) and 135 seconds is approximately 2.25 minutes, so what we need to do is is divide the numbers like any conversion problem: 162 divided by 2.25 is 72.

Hope this answer helps!

4 0

3 years ago

A poster square is 1.8 meters long whats the area of the poster

Alenkinab [10]

Answer:

Step-by-step explanation:

area=1.8×1.8=3.24 square meters

7 0

3 years ago

Use distributive property to factor method 1. Use distributive property to expand method 2.

sasho [114]

Step-by-step explanation:

I guess method 1 means to deal with whole factors.

x + 5 = (x - 2)(x + 5)

for (x + 5) <> 0 we can divide both sides by this factor :

1 = x - 2

x = 3

for the second solution we deal with

x + 5 = 0

x = -5

so, for x = -5 and x = 3 both functions deliver the same output, and these are the intersection points.

method 2 : we multiply the expression out and solve it then

x + 5 = (x - 2)(x + 5)

x + 5 = x² + 5x - 2x - 10 = x² + 3x - 10

0 = x² + 2x - 15

the general solution to such a square equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = 2

c = -15

x = (-2 ± sqrt(2² - 4×1×-15))/(2×1) =

= (-2 ± sqrt(4 + 60))/2 = (-2 ± sqrt(64))/2 = (-2 ± 8)/2 =

= -1 ± 4

x1 = -1 + 4 = 3

x2 = -1 - 4 = -5

and you get the 2 solutions again. as expected, they are the same as with method 1, of course.

4 0

2 years ago

Daniel traveled to his cabin on the lake and back. On the trip there he traveled 40 km/h and On the return trip he went 60 km/h.

Keith_Richards [23]

Answer:

The trip took total of 5 hrs out of which 3 hrs took for going to the trip and 2 hours for returning from the trip.

Step-by-step explanation:

Given:

Speed to the cabin = 40 km/h

Speed on return trip = 60 km/h

Time for return trip = 2 hrs.

We need to find the time for total trip.

Solution:

First we will find the Distance of the trip.

Now we know that Distance is equal to Speed times Time.

Now we can say that;

$\textrm{Distance of return trip} = \textrm{Speed of the return trip}\times \textrm{Time of return trip}$

Distance of return trip = $60\times 2 =120\ km$

Now we can say that Distance of return trip will equal to Distance to the trip.

Now we will find the time required to travel the trip.

time required to travel the trip can be calculated by dividing distance from the speed.

framing in equation form we get;

time required to travel the trip = $\frac{120}{40} = 3\ hrs$

Total time is equal to time took to travel the trip and Time took for return trip.

framing in equation form we get;

Total time = 3 + 2 = 5 hrs

Hence The trip took total of 5 hrs out of which 3 hrs took for going to the trip and 2 hours for returning from the trip.

5 0

2 years ago

Please hurry! I will give the right answer brainliest! Complete the inequalities.

BARSIC [14]

Answer:

1 is >

2 is >

I think this is right, you may need to confirm this

7 0

3 years ago