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Black_prince [1.1K]
3 years ago
5

I really need help...Will mark brainiest

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
3 0

Answer:

x² + 18x +81

x² - 14x +49

4x²- 4x - 1

Step-by-step explanation:

multiply the x in the first parentheses by x and 9 in the other parentheses and

multiply the 9 in the first parentheses by x and 9 in the other parentheses and add all together

(x+9)(x+9)

x² + 9x + 9x + 81

x² + 18x +81

multiply the x in the first parentheses by x and -7 in the other parentheses and multiply the -7 in the first parentheses by x and -7 in the other parentheses and add all together

(x-7)(x-7)

x² -7x - 7x +49

x² - 14x +49

(2x-1)² is the same as (2x-1)(2x-1)

multiply the 2x in the first parentheses by 2x and -1 in the other parentheses and multiply the -1 in the first parentheses by 2x and -1 in the other parentheses and add all together

(2x-1)(2x-1)

4x²-2x-2x+1

4x²- 4x - 1

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Suppose we want to choose 3 letters, without replacement, from the 4 letters A, B, C, and D.
ioda

Answer:A) 24 waysB) 4 waysStep-by-step explanation:a) permutation occurrs when order of choices matters.N = 4P3 = 4!/(4-3)! = 4!/1!N = 24 waysb) combination occurs when order of choices doesn't matter.N = 4C3 = 4!/3!(4-3)! = 4!/3!(1!)N = 4 ways

Step-by-step explanation:

a) permutation occurrs when order of choices matters.N = 4P3 = 4!/(4-3)! = 4!/1!N = 24 waysb) combination occurs when order of choices doesn't matter.N = 4C3 = 4!/3!(4-3)! = 4!/3!(1!)N = 4 ways(hope this helps:)

3 0
2 years ago
there are 22 loaves of white bread, 17 loaves of wheat bread, and 19 gourmet breads. What is the total number of loaves?
Airida [17]
Hello!

Judging by the question you have provided I have come up with an equation to solve the problem at hand. 

Based on the question you have provided I figured that there are two types of bread displayed being: loaves and gourmets.
To find the total amount of loaves of bread you would need to add up the total amount of each type of loaves.
The equation for this is 22+17.

Your answer should be 39 loaves of bread.

Hope this helped!
-Blake

5 0
3 years ago
Read 2 more answers
Data was collected ​
Rudiy27
Ok? what data?? i need context
3 0
3 years ago
The measures of two complementary angles have a ratio of 1:2 what is the measure of each angle
mamaluj [8]

The two angles are 30 degrees and 60 degrees

<em><u>Solution:</u></em>

Given that,

The measures of two complementary angles have a ratio of 1 : 2

Let the one of angle be 1x

Let the other angle be 2x

We know that,

Sum of two complementary angles is 90 degrees

Therefore,

1x + 2x = 90

3x = 90

Divide both sides by 3

x = 30

<em><u>Therefore, measure of each angles is:</u></em>

One angle = 1x = 30

Other angle = 2x = 2(30) = 60

Thus the two angles are 30 degrees and 60 degrees

6 0
3 years ago
jimmy made a circle graph illustrating the results of a survey he took to find the favorite subject of the students in his seven
Ede4ka [16]

Answer:

Physical education

Step-by-step explanation:

6 0
3 years ago
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