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serg [7]
4 years ago
6

How do you factor 0 = 4x2 + 2x – 30?

Mathematics
2 answers:
Wewaii [24]4 years ago
6 0

Answer:

x= 5/2, x= -3

4x^2+2x-30=0;  Factor that without the 0. Then you get 2 (2x-5) (x+3)=0.

2x-5=0 x= 5/2

x+3=0 x= -3

Hope this helps! :D

JulijaS [17]4 years ago
5 0
The answer is x = 11

first you multiply the numbers
0= 8 + 2x- 30

then you calculate that difference
0= -22+ 2x

then move variable to the left
-2x= -22

divide
x= 11
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Given the set of runs scored in 13 baseball games: 2 8 2 1 0 0 3 5 1 8 6 5 5 A. What is the median number. B. After recording th
dangina [55]

Answer:

Step-by-step explanation:

Given:

Games:

0

0

1

1

2

2

3

5

5

5

6

8

8

A.

Median is the middle value after the ste of values are arranged in ascending order, M which is the 7th value = 3

B.

Median increased by 2, M + 2

Therefore, new Median = 5

This means that the 2 runs are less than the previous median, 3 or greater than the new median, 5.

Possible pairs:

1, 2 or 6, 8

C.

Median can be 2.5 when the total number of runs scored are even numbers, therefore if the middle numbers are 2 and 3. In this case a number greater than or equal to 2;

The median = (2 + 3)/2

= 2.5

D.

Range is the difference between the highest value of runs scored to the lowest value of runs. In the data given above, range = 8 - 0

= 8.

It is possible to play 2 more games and no change in the range, 8 if the value of the 2 games (or 1 game) is/are greater than 0, the lowest value of runs scored and/or less than 8, which is the greatest value of runs scored.

4 0
4 years ago
A number of two digits is increased by 54 when the digits are reversed. The ten digits is three times the unit digit. Find the n
bija089 [108]

Let <em>n</em> be the unknown number. We can write it as

<em>n</em> = 10<em>a</em> + <em>b</em>

with <em>a</em> and <em>b</em> integers between 1 and 9 (either with positive or negative sign).

Reversing the digits gives another number

<em>m</em> = 10<em>b</em> + <em>a</em>

The first number is increased by 54 when the digits are reversed, which means

<em>m</em> = <em>n</em> + 54   →   10<em>b</em> + <em>a</em> = 10<em>a</em> + <em>b</em> + 54   →   9<em>b</em> - 9<em>a</em> = 54   →   <em>b</em> - <em>a</em> = 6

The digit in the tens place of <em>n</em> is 3 times the digit in the ones place, so

<em>a</em> = 3<em>b</em>

Substitute this into the previous equation and solve for <em>b</em> :

<em>b</em> - <em>a</em> = <em>b</em> - 3<em>b</em> = -2<em>b</em> = 6   →   <em>b</em> = -3

Solve for <em>a</em> :

<em>a</em> = 3<em>b</em> = 3(-3) = -9

Then the original number is <em>n</em> = 10<em>a</em> + <em>b</em> = 10(-9) + (-3) = -93

3 0
3 years ago
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a town has a population of 13000 and grows at 5% every year. What will be the population after 11 years, to the nearest whole nu
KatRina [158]
A=p(1+r)^t
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4 years ago
At Stop n Shop they are selling fried chicken for $1.95 a pound. If Amiyah buys 13.2 pounds how much will she spend?
Brut [27]

Answer:

Step-by-step explanation:

Price of one pound = 1.95

Price of 13.2 pounds = 13.2 x 1.95 = 25.74

8 0
4 years ago
Which equation is represented by the intersection of the graphs below?
riadik2000 [5.3K]

Answer:

it is d

Step-by-step explanation:

4 0
3 years ago
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