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3 years ago

What is the solution set of the following quadratic equation?

Mathematics

1 answer:

Brut [27]3 years ago

4 0

The answer is AAAAAAAAAAAAAAAA

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What is the value of x?

dangina [55]

Answer:

Step-by-step explanation:

The angles add up to 360°.

x + 98 + x + 91 + x + 15 = 360
3x + 204 = 360
3x = 156
<u>x = 52°</u>

7 0

2 years ago

Solve the equation for θ, where 0 ≤ θ ≤ 2π.

leonid [27]

Answer:

Theta=1.57rad, 4.71rad, 0rad, 2π rad, π rad and –π rad

8 0

3 years ago

What is the simplified form of the expression?

zimovet [89]

Answer:

7c^2d-7c+4d-10

Step-by-step explanation:

Start off with the term that has c^2 in it. 5c^2d + 2C = 7c^2d, then since you have multiple choice, the d value differs between the two answer choices that have 7c^2d so you can do +3d +d to get +4d to get the fourth answer choice.

To check your work, you can add/subtract each term to see if you get 7c^2d-7c+4d-10

3 0

3 years ago

Empathy means being able to understand what others feel. To see how the brain expresses empathy, researchers recruited 16 couple

yulyashka [42]

Answer:

the residual is 0.2032

Step-by-step explanation:

The regression line has been given as:

Y^ = 0.00753X-0.06759

The paired observation for X is (31, 0.369)

The value of X is the empathy score under subject 15 = 31

The value of the brain activity under subject 15 is 0.369

So we have y^ = 0.00753(31) - 0.06759

= 0.1658

Then the residual = y - y^

= 0.369 - 0.1658

= 0.2032

Therefore the residual is 0.2032

Please check the attachment for the table, it will aid you in understanding the solution

4 0

3 years ago

Sketch the line passing through the pair of points and identify the line as having a positive slope, a negative slope, a zero sl

scoundrel [369]

Answer:

line will be horizontal running through (0,2)

Step-by-step explanation:

6,2
1,2
2-2/1-6 = 0/-5 = 0 slope. 2 = 0x6+b, 2=b. line will be y=b , y=2.

5 0

2 years ago