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andrezito [222]
3 years ago
15

BRAINLIESTTTTT ASAP!!!

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
7 0
When the quadratic expression is x^2 +ax + ..., the binomial square will be
.. (x +(a/2)^2

You have a=-2, so the binomial square will be of the form (x -1)^2. You don't even need to work out the rest of it to know that ...
.. the 4th selection is appropriate.
You might be interested in
4. Orville and Wilbur Wright made the first airplane flights in
hichkok12 [17]

Step-by-step explanation:

Represent Wilbur with W and Orville with O

The equation connecting both flights is

W - 120 = O

W = 364 feet

364 - 120 = 246

O = 246

7 0
3 years ago
Janice wants to buy carpet for a trapezoid shaped room. The bases of the trapezoid are 12 feet and 14 feet, and the height is 15
Usimov [2.4K]
For this case, the first thing to do is find the area of the trapezoid.
 We have then:
 A = (1/2) * (b1 + b2) * (h)

 Where,
 b1: b2: Trapezoid bases
 h: height of the trapezoid
 Substituting values we have:
 A = (1/2) * (12 + 14) * (15)

A = 195 ft ^ 2
 Then, the cost per square foot is given by:
 C = 5.50A

C = 5.50 * 195

C = 1072.5
 Answer:
 
The new carpet for the room will cost:
 
C = 1072.5 $
4 0
3 years ago
1. What is the solution of n^2-49=0?
Effectus [21]

<u>Answer:</u>

<h2>1. a</h2><h2>2. b</h2><h2>3. b</h2><h2>4. b</h2><h2>5. 22</h2>

<u>Explanation:</u>

1.

n²-49=0

n=√49

n=7

2.

x²+64=0

x=√64

x=8

3.

if A=144x²

l = √A

l = √(144x²)

l = 12x

4.

b = (24×2)/3b

b = 48/3b

b = 16/b

b² = 16

b = √16

b = 4 in <em>(-4 is correct in algebra but there's no negative lengths in geometric shapes)</em>

5.

x²+z = 103

x² = 103-z

x = √(103-z)

for x = -9 and 9    (103-z) must equal 81

z = 103 - 81 = 22

x = √(103-22)

x = √81

x = -9 , 9

7 0
2 years ago
Kite ABCD is similar to kite IJKL. Angle B is congruent to the measure of angle?
STALIN [3.7K]
Correspondent angles in a figure are congruent if the figures are similar

Since angle J is the correspondent angle to angle B 
Then Angle B is congruent to angle J

Hope this helps. 
8 0
3 years ago
12
Stels [109]

Answer:

x = 1 Whole 1/3

Step-by-step explanation:

10001010100110010101001010101010111000100101010

3 0
3 years ago
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