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irinina [24]
3 years ago
13

F(x)=(x-1)2-9 f(x)=(x+2)(x-4)

Mathematics
1 answer:
Vaselesa [24]3 years ago
7 0

Answer:

1. 2x−11

2.  x²−2x−8

Step-by-step explanation:

1.

Regroup terms.

Expand by distributing terms.

Collect like terms.

Simplify.

2.

Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd(a+b)(c+d)=ac+ad+bc+bd.

Collect like terms.

Simplify.

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Two radar stations 5.5 miles apart are tracking an airplane. The straight line distance
Vesnalui [34]

Answer:

19°

Step-by-step explanation:

I have attached an image showing this elevation.

From the image, let's first find the angle A by using cosine rule.

Thus;

8.1² = 5.5² + 13.1² - 2(5.5 × 13.1)cos A

65.61 = 30.25 + 171.61 - 144.1cos A

144.1cos A = 171.61 + 30.25 - 65.61

144.1cosA = 136.25

cosA = 136.25/144.1

cosA = 0.9455

A = cos^(-1) 0.9455

A = 19°

5 0
2 years ago
If a recipe required 1 1/2 cups of sugar how many required to make M batches of cookies
Tema [17]

what does m mean first of a

5 0
3 years ago
What is an equation in slope-intercept form for the line that passes through the points (1, -3) and (3,1)
DedPeter [7]
The last one y=2x-5 if you plug the points into the x and y values you can see this equation works for both points.
5 0
2 years ago
A maps key shows that every 5 inches on the map represents 200 miles of actual distance. Suppose the distance between two cities
ryzh [129]
Hello there, and thank you for posting your question here on brainly.

Short answer: 280 miles.

Why?

You can find this out by finding out how much 1 in is by dividing 200 by 5. (200 / 5 ==> 40) So 1 in = 40 miles. Now, we multiply that by 7, so we can find out how much 7 in would be. (7 * 4 ==> 280) 7 inches on the map represents 280 miles.

Hope this helped you! ♥
3 0
2 years ago
What is the name of when the line of slope is on the x axis line
vovangra [49]

Answer:

X-axis

Step-by-step explanation:

the name of when the line of slope is on the x axis line is the x axis line.

5 0
3 years ago
Read 2 more answers
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