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Leona [35]
2 years ago
12

Work out 3/4 + 4/7 what is the answer to this question

Mathematics
1 answer:
worty [1.4K]2 years ago
7 0

Answer:

1 and 9/28

Step-by-step explanation:

you need to put everything over the same denominator

21/28+16/28=37/28

this can be written as  1 9/28

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The average commute to work (one way) is 25 minutes according to the 2005 American Community Survey. If we assume that commuting
Stolb23 [73]

Answer:

1. 0.1635

2. 0.0026

Step-by-step explanation:

The computation of the probability in the following cases are as follows:

1.

Given that

Mean = 25 minutes

ANd, the standard deviation is 6.1 minutes

So here the z score would be

= (31 - 25) ÷(6.1)

= 0.98

Now the probability is

= P(Z>0.98)

= 0.1635

2. the z score would be

= (8 - 25) ÷(6.1)

= -2.79

Now the probability is

= P(Z<-2.79)

= 0.0026

7 0
3 years ago
Kaj is flying a kite, holding her hands a distance of 3.5 feet above the ground and letting all the kite’s string play out. She
Savatey [412]

Using trigonometric ratio, the height of the ground above the ground to the nearest hundredth is 44.85 ft

The situation forms a right angle triangle.

<h3>What is a right angle triangle?</h3>

Right angle triangle has one of its angles as 90 degrees. The sides and angles can be found using trigonometric ratios.

Therefore, the length of the string is the hypotenuse side of the triangle formed . The opposite side of the triangle is the height of the kite form the ground.

Therefore, the height of the kite form the ground can be found as follows;

sin 33° = opposite / hypotenuse

sin 33° = h / 75

cross multiply

h = 75 × sin 33

h = 40.8479276261

h = 40.84

The height of kite from ground = 40.847 + 3.5  = 44.3479276261 = 44.85 ft

learn  more on right triangles here: brainly.com/question/25799394

4 0
2 years ago
What is the measure of
klasskru [66]

Answer:

x=50°

Step-by-step explanation:

52°+78°+x°=180°(by angle sum property)

130°+x°=180°

x°=180°-130°

x°=50°

3 0
3 years ago
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nordsb [41]
12^2 is 144, 12 x 12. Hope this helps?
4 0
3 years ago
PLZ help 99 points<br> Question is on powers
Karolina [17]
It’s 15 * 15 * 15 * 13 * 13 !
5 0
3 years ago
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