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KiRa [710]
3 years ago
14

Solve the quation by completing the square . round to the nearest hundredth if nessarsy x2-x-7=0

Mathematics
1 answer:
Anestetic [448]3 years ago
6 0

Answer:

3.19

Step-by-step explanation:

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Two consecutive integers have a sum of 185.find the integers
Strike441 [17]

Answer: 92 and 93

Step-by-step explanation:

The two consecutive integers will be written thus

= x + (x + 1)

The sum. x + (x+ 1).= 185'

x + x + 1 = 185

2x + 1 = 185

2x = 185 - 1

2x = 184

x = 184/2

= 92.

Therefore, the Integers are 92 and 93.

5 0
3 years ago
The beverage orders from school cafeteria are shown in the graph. If 760 students purchase a beveragehow many of the students ch
kari74 [83]

according to the graph, 25% chose water, and

\bf \begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{25\% of 760}}{\left( \cfrac{25}{100} \right)760}\implies 190

5 0
3 years ago
Adam is going to cook a turkey for 14 people and wants to allow ¾ lb of turkey for each person.
ArbitrLikvidat [17]
I did (450*3/4=337.5) to get how much each person would eat, then I did (337.5*14=4725g) to see how big the turkey should be. I then converted grams to kilos (4725*0.001=4.725 kg), and I got how big the turkey would be. It turns out the appropriate size of the turkey would be medium, so then what I did was that I looked for the medium price of the turkey per kg, and found that it was £5.99 per kg. I did (4.725*5.99) and I got about £28.30. It would cost £28.30 for 14 people.
8 0
3 years ago
Read 2 more answers
Determine if the conclusion follows logically from the premises. Is this a valid or invalid argument?
Oksi-84 [34.3K]

Answer:

Valid Argument

Step-by-step explanation:

An argument is valid if its conclusion follows with certainty from its premises.

Given:

Premise: If it has an engine, I can fix it.

Premise: Cars have engines.

Conclusion: I can fix cars.

The argument is valid since the conclusion follows with certainty from the given premises.

7 0
3 years ago
Are the lengths of the side of the square and perimeter of the square related proportionally? Why or why not
telo118 [61]

Answer:

They are proportional

Step-by-step explanation:

becaue the length of one of the square's sides is 1/4 the perimeter

8 0
3 years ago
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