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Naddik [55]
3 years ago
14

Find the sum of the roots of the quadratic x^2+7x-13=0

Mathematics
1 answer:
ahrayia [7]3 years ago
3 0

x=-7√101/2

also -7√101 is over 2 if you couldnt tell

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Find the common ratio an=4n-2
S_A_V [24]
The answer is 8 thank we'll come
8 0
3 years ago
1) ab (c² + 1) - C (a² + b²)​
Ganezh [65]

Answer:

(a+bc)(ac+b)

Step-by-step explanation:

Step 1:

abc²+ab+a²c+b²c

Step 2:

ab+a²c+abc²+b²c

Step 3:

a(ac+b)+bc(ac+b)

Step 4:

(a+bc)(ac+b)

So your final answer is:

(a+bc)(ac+b)

7 0
2 years ago
Read 2 more answers
A baby gains about 15 pounds each month. About how much weight will the baby have gained after 6 months? a. About 7.5 pounds b.
Molodets [167]

Answer:

I'm going to assume you meant 1.5 pounds and not 15 pounds each month.

Step-by-step explanation:

1.5*6=9

C

7 0
3 years ago
Read 2 more answers
To calculate the hourly revenue from the buffet after x $1 increases, multiply the price paid by each customer and the average n
gizmo_the_mogwai [7]

Answer:

The question is not complete,find below complete question

Noah manages a buffet at a local restaurant. He charges $10 for the buffet. On average, 16 customers choose the buffet as their meal every hour. After surveying several customers, Noah has determined that for every $1 increase in the cost of the buffet, the average number of customers who select the buffet will decrease by 2 per hour. The restaurant owner wants the buffet to maintain a minimum revenue of $130 per hour.

Noah wants to model this situation with an inequality and use the model to help him make the best pricing decisions.

To calculate the hourly revenue from the buffet after x $1 increases, multiply the price paid by each customer and the average number of customers per hour. Create an inequality in standard form that represents the restaurant owner’s desired revenue.

Type the correct answer in each box. Use numerals instead of words. x2 + x + ≥

Price is $8

Step-by-step explanation:

The minimum revenue of $130 is a function price multiplied by number of buffet sold

initially price per buffet was $10

16 buffet sold per hour

when cost of buffet to customer increases by $x,the number of customer would decrease by 2 multiplied x since x is the increase in the price that has turned customers away

(10+x)(16-2x) less than or equals 130

by opening brackets we have

160+16x-20x-2x^2 less than equals 130

if we divide the equation by 2

80+8x-10x-x^2

8(10+x)-x(10+x)

8-x=0 or x+10=0

x=8 0r -10

price cannot be negative hence x is $8

6 0
3 years ago
Describe the relationship between the number of at bats and the number of hits using the data in the scatter plot.
Fynjy0 [20]

Answer:

The number of at bats increases, the number of hits also increases

Step-by-step explanation:

Given

See attachment for graph

Required

Relationship between the plots

From the attached graph, we can observe that there is an upward trend in the graph; in other words, when the number of at bats increases, the number of hits also increases

Hence, the relationship between them is that: an increment in at bats causes an increment in hits.

5 0
3 years ago
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