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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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How many solutions does 3(x+5)=-4x+8 have
Mashutka [201]

Answer:

1 solution and that is that x = -1

Step-by-step explanation:

4 0
3 years ago
Which polygon is a concave octagon?
Bezzdna [24]

The polygon in option 3 is not octagon at all, it is heptagon (or 7-sided polygon).

A convex octagon has no angles pointing inwards. More precisely, no internal angles can be more than 180°.

When some internal angle is greater than 180°, it is concave.

In option 2 you can see that one angle is pointing inward, then this octagon is concave.

Answer: correct choice is B.

8 0
2 years ago
Read 2 more answers
A circle with radius of \greenD{5\,\text{cm}}5cmstart color #1fab54, 5, start text, c, m, end text, end color #1fab54 sits insid
Marat540 [252]

Answer:

The area of the shaded region is 42.50 cm².

Step-by-step explanation:

Consider the figure below.

The radius of the circle is, <em>r</em> = 5 cm.

The sides of the rectangle are:

<em>l</em> = 11 cm

<em>b</em> = 11 cm.

Compute the area of the shaded region as follows:

Area of the shaded region = Area of rectangle - Area of circle

                                            =[l\times b]-[\pi r^{2}]\\\\=[11\times 11]-[3.14\times 5\times 5]\\\\=121-78.50\\\\=42.50

Thus, the area of the shaded region is 42.50 cm².

7 0
3 years ago
Read 2 more answers
Four less than the quotient of a number 1 and 5.
zhannawk [14.2K]

Answer:

Step-by-step explanation:

You should know that quotient is the result of division.

 

n/2

 

Four less than that would be subtracting.

 

(n/2) - 4 = 9

5 0
3 years ago
Read 2 more answers
Find the measure of the exterior Angle1 (I’m a bit confused on how exterior angles work)
sergejj [24]

Answer:

70

Step-by-step explanation:

I would do 40 + 30 = 70

180-70 = 110

110 is the last angle bc all angles add to 180 in a triangle

Then 180 - 110 = 70 for angle 1 because their supplementary

I don't know if you could just add the 2 inside angles but I would do it this way to be safe until I know for sure.

7 0
2 years ago
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