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2 years ago

10

HELP ME PLS stock worth $60 a share dropped in value by 20% on Monday. Then it dropped again by 10$ the next Tuesday. And finall

y increased by 55% the following Friday. What was the final price of a share?

1 answer:

fgiga [73]2 years ago

3 0

Answer:

58.90

Step-by-step explanation:

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Use elimination to solve this system of equations. X-4y=-11 and 5x-7y=-10

Romashka-Z-Leto [24]

Hopefully this helps you start to understand the steps to take in elimination

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3 years ago

Assume that the number of defective basketballs produced is related by a linear equation to the total number produced. Suppose t

sveta [45]

Answer: 22 defective balls

Step-by-step explanation:

Using the law of equality,

9 defective balls = 225 ...eqn 1.

14 defective balls = 350...eqn 2

x defective balls = 550...eqn 3

We can use any two of the equations above to get the unknown variable 'x'

Using equations 2 and 3,

14 defective balls = 350...eqn 2

x defective balls = 550...eqn 3

We cross multiply to have

x×350 = 14×550

Dividing both sides by 350,

x = 14×550/350

x = 22.

Therefore, the number of defective balls produced in a lot of 550 balls are 22balls.

Note that we will still arrive at the same answer (22balls) if equation 1 and 3 are used for our solution.

Thank you!

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3 years ago

The question is in image!!!!!! plz answer you’ll get 95 points!!

dybincka [34]

Answer:

Option A is correct

Step-by-step explanation:

<u>Given functions f(x) and g(x). f(x) is:</u>

f(x) = x^2 + 4x + 6

<u>Converted into vertex form, it is:</u>

f(x) = (x + 2)^2 + 2

<u>g(x) has vertex at (-2, -14), it's vertex form is:</u>

g(x) = (x + 2)^2 - 14

Comparing f(x) and g(x) we see both have same x- coordinate of the vertex (x = -2).

Both have positive leading factors, therefore the vertex is their minimum point.

Function f(x) has vertex above the x-axis as y-coordinate of the vertex is positive. Hence no intersection with x-axis.

Function g(x) has negative y-coordinate of the vertex, so it has two intersections with x-axis.

Correct choice is A

4 0

3 years ago

Read 2 more answers

Identify the domain and range of each relationship. Represent the relation with a mapping diagram. Is the relation a function?

Ivenika [448]

Remember, to be a function, all elements in the domain should correspond to one element in the range.
The domain is the x coordinate, range is the y coordinate.
The domain we can solve for as the set {4.2, 5, 7}. The range is the set {0, 1.5, 2.2, 4.8}.
But we see that an element in the domain corresponds to more than one element in the range, thus making it not a function.

4 0

3 years ago

In certain regions of the country, elk can cause damage to agricultural crops by walking through the fields. One strategy design

mina [271]

Answer:

The mean number of elk to cross all fields protected by fence is equal to 3.65 per month.

Step-by-step explanation:

Given the confidence interval : (2.9,4.4)

Confidence = xbar ± standard Error

To obtain the mean :

We first calculate the standard error :

Standard Error from confidence interval :

(Upper boundary - Lower boundary interval) / 2

(4.4 - 2.9) / 2

1.5 / 2

= 0.75

Hence, the mean can be obtained as :

(Lower boundary + 0.75) or (Upper boundary - 0.75)

Lower boundary + 0.75 = 2.9 + 0.75 = 3.65

Upper boundary - 0.75 = 4.4 - 0.75 = 3.65

3 0

3 years ago