3 years ago

This may seem like a simple question. Expanding brackets are usually easy. But, how do you do this?

1 answer:

8 0

Here you use the FOIL (first, outer, inner, last) method to distribute everything.
7f-6-7f^2+6f
Now combine like terms and put it in the right format
-7f^2+13f-6

Hope that helps and feel free to ask any questions.

You might be interested in

The veterinarian weighs Hector’s two dogs. His German Shepherd weighs 37 pounds. His chihuahua weighs 240 ounces. What is the to

horsena [70]

Answer:

52 pounds

Step-by-step explanation:

1 pound=16oz.

240/16=15

15+37=52

3 0

2 years ago

Read 2 more answers

Find the value of csc theta, if cos =-3/5; 90 degrees < theta < 180 degrees

Sloan [31]

Answer: $\frac{5}{4}$

Step-by-step explanation:

Given

$\cos \theta =\frac{-3}{5}$

and $\theta$ lies between

$90^{\circ}$

and for this $\theta$ , $\sin$ and $\text{cosec}$ is Positive as they lie in 2 nd Quadrant

$\sin ^2\theta +\cos ^2\theta =1$

$\sin ^2\theta =1-(\frac{-3}{5})^2$

$\sin ^2\theta =1-\frac{9}{25}$

$\sin ^2\theta =\frac{16}{25}$

$\sin \theta =\frac{4}{5}$

$\therefore \text{cosec}\ \theta =\frac{5}{4}$

6 0

3 years ago

Determine whether AB ← → and CD ← → − are parallel, perpendicular, or neither. A(-6, 2), B(−3, -4), C(1, -3), D(3, 4)

guapka [62]

Neither they connect but don’t make a 90 degree angle

6 0

3 years ago

Two fractions with different denominators that have the sum of 1/3

klemol [59]

1/4. and. 1/12. will do that.

3 0

3 years ago

Describe the three basic uses of percentages. Give a sample statement that uses percentages in each of the three ways. What is o

nadezda [96]

Percentages can be used for discounts in shops - 50% off cookies
For bank interest rates - 2.78% p.a.
Sales tax - $50 coffee maker and the sales tax is 8%

4 0

3 years ago