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Genrish500 [490]
2 years ago
5

Solve x^2 + 6x + 15 = 0 using the Quadratic Formula

Mathematics
1 answer:
STALIN [3.7K]2 years ago
8 0
I hope the following helps!!

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Algebra Review: Pra<br> (4x-7)(2x+1)
ki77a [65]
2x - 6 = 2 • (x - 3)
2 = 0
x-3 = 0
x=3
7 0
3 years ago
Wendy is creating a large soup based on a recipe. Her recipe calls for of a pint of milk, but she only has of a pint of milk, so
Viktor [21]
I'm sorry but maybe you wrote this wrong. If Wendy has 1 pint of milk and only needs 1 pint of milk, then she has exactly the amount she needs.
4 0
3 years ago
1.75x+1.25y=2<br> 7x+5y=9<br> how many solutions does this system of equations have?
Vlad1618 [11]

Answer:

true 7x+5y=9

Step-by-step explanation:

7 0
3 years ago
Help! If you know this can you tell me how to do it?
aleksandr82 [10.1K]

Answer:

c

Step-by-step explanation:

Here's how this works:

Get everything together into one fraction by finding the LCD and doing the math.  The LCD is sin(x) cos(x).  Multiplying that in to each term looks like this:

[sin(x)cos(x)]\frac{sin(x)}{cos(x)}+[sin(x)cos(x)]\frac{cos(x)}{sin(x)} =?

In the first term, the cos(x)'s cancel out, and in the second term the sin(x)'s cancel out, leaving:

\frac{sin^2(x)}{sin(x)cos(x)}+\frac{cos^2(x)}{sin(x)cos(x)}=?

Put everything over the common denominator now:

\frac{sin^2(x)+cos^2(x)}{sin(x)cos(x)}=?

Since sin^2(x)+cos^2(x)=1, we will make that substitution:

\frac{1}{sin(x)cos(x)}

We could separate that fraction into 2:

\frac{1}{sin(x)}×\frac{1}{cos(x)}

\frac{1}{sin(x)}=csc(x)  and  \frac{1}{cos(x)}=sec(x)

Therefore, the simplification is

sec(x)csc(x)

5 0
3 years ago
Knight and Haslam (2010) found that office workers who had some input into the design of their office space were more productive
sleet_krkn [62]

Answer:

1. Option A

2. Option A

Step-by-step explanation:

1.

The independent variable is the one which affects the other variable. Here two variables "design of office space" and "control by managers" control the  Productivity and well-being of the workers.

Hence, the independent variable is Control of the office manager

Option A

2. The dependent variable is the one which gets affected by the independent variable and in this case it is the Productivity and well-being of the workers.

Option A

5 0
2 years ago
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