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tankabanditka [31]
3 years ago
15

Simplify: (3+√5)(4-√5)

Mathematics
2 answers:
vovikov84 [41]3 years ago
6 0

Answer:

7+√5

Step-by-step explanation:

olganol [36]3 years ago
6 0

Answer:

7+\sqrt{5}

Step-by-step explanation:

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Could you build a triangle from each of the 3 lengths?
lianna [129]
To form a triangle the sum of the two shorter sides must be greater than the longest side.
5, 5, 3 forms a triangle (isosceles)
8, 8, 8 forms a triangle (equilateral)
5, 6, 10 forms a triangle (obtuse angled scalene)

7, 8, 15 technically forms a triangle with an area of zero units. The vertices would be co-linear.
This will often be ignored as it has little practical use.

Fun fact. If you break a stick into 3 random lengths there is only a 25% chance they will be able to form a triangle.
7 0
3 years ago
Noah gathered data at his school among 7th and 8th graders to see if there was an association between grade level and handedness
mash [69]

Answer: 4) 157

Step-by-step explanation:

We know that there is no association between the grade level and the andedness, then we should find that the ratio between left handeds and right handed is the same for both grades.

In 7-th grade we have:

Left handed : 11

Right handed: 72

The ratio is 11/72 = 0.14

Then, the ratio for the 8-th graders must be about the same:

Left handed: 24

Right handed: X

Ratio: 24/X

Let's start with the bigger option, X = 157.

24/157 = 0.15

Ok, we now see that with the bigger option we obtained almost the same ratio (if we use the smaller values for X, we will get a ratio bigger than 0.15, so 0.15 is the better aproximation that we can find to the 0.14 of the 7-th graders)

Then the correct option is 4) 157

4 0
3 years ago
A catering company loses $110 as a result of a delay.
tatyana61 [14]

Answer:What you have to do first is you have 5 owners correct? Well you take anything they're sharing in this case it's delay/debt, so you divide $110 by 5 and you should get $22. This means that each owner would have to pay $22 for the delay.

ANS -22

Brainly please

4 0
3 years ago
6m^2 + 7n<br>Identify the constant, variable, and terms​
Leokris [45]
<h3>Answer:</h3>

<u>Given equation</u> :- 6m² + 7n

where,

  • <u>Constant</u> = 0.
  • <u>Variable</u> = m, n.
  • <u>Terms</u> = 6m² , 7n.
6 0
3 years ago
Pleaseee solve i need in at least 5 mins
inna [77]
G=11 because the math and the numbers all add one to one round number
5 0
3 years ago
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