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OleMash [197]
3 years ago
5

Solve for x. 2x^2+3x-12=x^2+x-9

Mathematics
2 answers:
Aleks [24]3 years ago
6 0

Answer:

x=1,-3

Step-by-step explanation:

Sidana [21]3 years ago
4 0

Answer:

x = 1, x = -3

Step-by-step explanation:

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One population proportion test: Which of the following situations involves testing a claim about a single population proportion?
kicyunya [14]

Answer:

A recent report estimated that 25% of all college students in the United States have a sexually transmitted disease (STD). The director of the campus health center believes that the proportion of students with STDs is higher at their campus.

According to the American Heart Association guidelines, the daily maximum amount of sugar a teenager should have is 4 teaspoons. The parents of a local high school have expressed concerns that the average daily sugar intake of their students is higher than these guidelines and have been pressuring school officials to limit unhealthy snack and beverage choices offered in the cafeteria and student store.

Step-by-step explanation:

The first two researches involve the single sample compared to mean of population.

The 3rd and 4th research involves comparing samples of men and women that is two individual groups.

4 0
4 years ago
Brenna needed 8 gallons of gas last week. This week, Brenna ended up needing 50% less. How much gas is that? Please answer quick
algol [13]

Answer:

4

Step-by-step explanation:

6 0
3 years ago
Evaluate |-3| - |5|. - 8 - 2 2 8
Sedaia [141]
Is it subtract 228? if so then 3-5 equals -2. -2-8 equals -10. -10-228 equals -238
6 0
4 years ago
the number of free song downloads is determined using a ratio. When you purchase 40 songs, you get 24 free downloads. How many s
Artemon [7]
That answer will be 30 songs.

In order to get that answer you must multiply 40 by 18 which is 720 and divide it by 24 . Finally you get the answer 30 songs.

Hope it helps :]
4 0
3 years ago
Read 2 more answers
What is the slope of the line that contains these points? xxx -4−4minus, 4 -3−3minus, 3 -2−2minus, 2 -1−1minus, 1 yyy 222 555 88
Charra [1.4K]

Given:

The table of values is

x        y

-4      2

-3      5

-2       8

-1       11

To find:

The slope of the line that contains these points.

Solution:

From the given table consider any two point.

Let the line passes through the points (-4,2) and (-3,5). So, the equation of the line is

y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)

y-2=\dfrac{5-2}{-3-(-4)}(x-(-4))

y-2=\dfrac{3}{-3+4}(x+4)

y-2=\dfrac{3}{1}(x+4)

Using distributive property, we get

y-2=3x+12

y=3x+12+2

y=3x+14

Therefore, the required equation of line is y=3x+14.

4 0
3 years ago
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