How do you do y=-1/2x+7<br> 5x-2y=10

Evaluate each expression if a = 6, b = 3, and c = 2.

cricket20 [7]

Answer:

1=6 2=3 4=1 5=5 6=4 7=18 8=8

7 0

4 years ago

If you run 100 m and 9.99 seconds and someone else runs in 12.0 seconds how many meters would you have beat them by?

Vlad [161]

Answer:

Step-by-step explanation:

other runner runs in 12 seconds=100 m

runs in 9.9 seconds=100/12 ×9.9=990/12=330/4=165/2=82.5 m

you beat him by 100-82.5=17.5 m

6 0

3 years ago

Cos(theta) = - 3/4 and is in the 3rd quadrant, find the following:

elena-14-01-66 [18.8K]

Answer:

$\begin{gathered} sin(\theta)=\frac{-\sqrt{7}}{4} \\ cos(\theta)=-\frac{3}{4} \\ tan(\theta)=\frac{\sqrt{7}}{3} \\ csc(\theta)=-\frac{4}{\sqrt{7}} \\ sec(\theta)=-\frac{4}{3} \\ cot(\theta)=\frac{3}{\sqrt{7}} \end{gathered}$

Step-by-step explanation:

If theta is in the third quadrant, draw the diagram to easily identify the other trigonometric relations:

Solve for the missing leg of the triangle, using the Pythagorean theorem:

$\begin{gathered} \text{ adjacent}^2+\text{ opposite}^2=\text{ hypotenuse}^2 \\ -3^2+\text{ opposite}^2=4^2 \\ \text{ opposite=}\sqrt{16-9} \\ \text{ opposite=}\sqrt{7} \end{gathered}$

Therefore, for the trigonometric relationships:

$\begin{gathered} \text{ sin\lparen}\theta)=\frac{opposite}{hypotenuse} \\ \text{ cos\lparen}\theta)=\frac{adjacent}{hypotenuse} \\ tan(\theta)=\frac{opposite}{adjacent} \\ csc(\theta)=\frac{hypotenuse}{opposite} \\ sec(\theta)=\frac{hypotenuse}{adjacent} \\ cot(\theta)=\frac{adjacent}{opposite} \end{gathered}$

Now, substitute and solve for the relations:

$\begin{gathered} sin(\theta)=\frac{-\sqrt{7}}{4} \\ cos(\theta)=-\frac{3}{4} \\ tan(\theta)=\frac{\sqrt{7}}{3} \\ csc(\theta)=-\frac{4}{\sqrt{7}} \\ sec(\theta)=-\frac{4}{3} \\ cot(\theta)=\frac{3}{\sqrt{7}} \end{gathered}$

7 0

1 year ago

Find the first four terms of the multiplication pattern given by the formula.

lara31 [8.8K]

You just need to plug in 1, 2, 3, and 4.
10*4(1)-1=39
10*4(2)-1=79
10*4(3)-1=119
10*4(4)-1=159

6 0

3 years ago

2.

EleoNora [17]

Answer:

yes

Step-by-step explanation:

because i need points.......................................................

7 0

3 years ago

How do you do y=-1/2x+7 5x-2y=10​

How do you do y=-1/2x+7 5x-2y=10