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4 years ago

Solve the equation without the use of a calculator. please Help!!! Thank you!!! 9x=10-x^2

Mathematics

1 answer:

mel-nik [20]4 years ago

7 0

Essentially, you are being asked to factor

... x^2 +9x -10 = 0

That is, you are looking for factors of -10 that add to +9. It doesn't take long to find that -1 and 10 add to +9, so the factorization is

... (x -1)(x +10) = 0

The solutions are the values of x that make these factors zero.

... x = 1 or x = -10

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Example : C For Cheeseburger , S for small and etc

Nookie1986 [14]

Answer:

3+2+2-1+2=8

Step-by-step explanation:

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8 0

3 years ago

Read 2 more answers

tom and tammy race cross country on motor bikes to drive 450 miles in 9 hours. Tammy took 7 1/2 hours to travel the same distanc

Scilla [17]

Answer:

50 and 60 mph respectively

Step-by-step explanation:

Step one:

given data

total distance= 450 miles

time take= 9 hours

Required

Tom and Tammy's average speed

Step two:

Tom's average speed= 450/9

= 50 miles per hours

Tammy's average speed= 450/7.5

= 60 miles per hours

7 0

3 years ago

Which statement BEST explains the relationship between lines GF & HJ?

Pavel [41]

Answer:

Option (4)

Step-by-step explanation:

Slope a line passing through two points $(x_1,y_1)$ and $(x_2,y_2)$ is given by,

m = $\frac{y_2-y_1}{x_2-x_1}$

Since, blue line is passing through two points (-4, -2) and (0, 4),

Slope of the blue line = $\frac{4+2}{0+4}$

= $\frac{3}{2}$

Similarly, green line is passing through two points (-4, 1) and (0, -2),

Slope of the green line = $\frac{1+2}{-4-0}$

= $-\frac{3}{4}$

Since, $\frac{3}{2}\neq -\frac{3}{4}$

Neither these slopes are opposite reciprocals.

Therefore, both the lines are neither parallel nor perpendicular.

Option (4) will be the correct option.

6 0

3 years ago

The histogram below shows the estimated monthly salaries of company employees with different years of experience.

skad [1K]

From the Histogram displaying the the estimated monthly salaries of company employees with different years of experience, the graph might be misleading given that:
The scale on the y-axis overemphasizes the difference in salaries between different experience levels.

It might not be the case always that salary increment is proportional to experience, this might not fit all the cases.

8 0

3 years ago

Read 2 more answers

How many seconds in 47 minutes?

Yanka [14]

Based on my calculations, there are 2,820 seconds in 47 minutes.

8 0

4 years ago