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mel-nik [20]
4 years ago
9

What's 2a - 3 = 4 + 11 ( a + 1

Mathematics
2 answers:
Strike441 [17]4 years ago
8 0
A = -2 if you do it all right
Levart [38]4 years ago
6 0
2a-3=4+11a+11 —>distributive property
2a=7+11a+11
2a=18+11a
-9a=18
18/-9 is -2

Answer:-2
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jonny [76]

Answer:

4

Step-by-step explanation:

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3 years ago
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How do I solve this?? pic attached
lisov135 [29]

Answer:

y=-⅓x+7

Step-by-step explanation:

Since the new line we need to make must be parallel to the old one the number changing x must stay the same. this means that that we will still have -⅓ X. Now that we have part of the line formula, we can try to fit it to the point. Because the X is equal to 9, -1/3*9 is -3. To get it to the correct point, we have to add 7, so that our Y is 4. If we combine the two parts of the equation, we get Y=-⅓x+7

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3 years ago
Mandy is building a rectangular garden pond with the area of 12ft^2. The length of pool needs to be 2 ft more than twice the wid
Genrish500 [490]

The length of rectangular pool is 6 ft and width of rectangular pool is 2 ft.

Step-by-step explanation:

Given,

Area of rectangular pool = 12 square feet

Let,

Width of pool = w

Length of pool = l = 2w+2

Area = Length * Width

12=(2w+2)*w\\12=2w^2+2w\\2w^2+2w-12=0

Dividing each term by 2;

\frac{2w^2}{2}+\frac{2w}{2}-\frac{12}{2}=0\\w^2+w-6=0\\w^2+3w-2w-6=0\\w(w+3)-2(w+3)=0\\(w+3)(w-2)=0\\

Either,

w+3 = 0       => w=-3

Or,

w-2=0          =>w=2

As width cannot be negative, therefore,

Width of rectangular pool = 2 ft

Length of rectangular pool = 2w+2 = 2(2)+2 = 4+2 = 6 ft

The length of rectangular pool is 6 ft and width of rectangular pool is 2 ft.

Keywords: rectangle, area

Learn more about areas at:

  • brainly.com/question/10703930
  • brainly.com/question/10772025

#LearnwithBrainly

7 0
3 years ago
You bought a used truck for $15,000. The value of the truck will
kvasek [131]

Answer:

15000  \times {0.92}^{x}  = y

x is the number of years and y is the value at x years

8 0
3 years ago
Sara threw 6 darts at this dartboard, and they all hit the target. Which of the following numbers could have been her score: 4,2
ASHA 777 [7]

Dartboard is a circular board marked with numbered segments used as a target in the game of darts. Sara can score 24 with 6 darts which all hits the target.

<h3>Given information;</h3>

Total dartboards darts thrown by the Sara are 6.

The number darts hit the target is 6.

<h3>Dartboard</h3>

Dartboard is a circular board marked with numbered segments used as a target in the game of darts.

In a dartboard there are 4 different types of scoring,

  • Bull's eye- When the dart hits the center of the dartboard with 9 points.
  • 2nd circle- When the dart hits the second circle with 7 points.
  • 3rd circle-When the dart hits the third circle with 5 points.
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If all the dart hit the target the score must be equal to or more than 6 and less than or equal to the 54. Thus the option 1 and 4 is incorrect. 29 and 31 also can be eliminates as the sum of the odd number must be even.

Thus Sara can score 24 with 6 darts which all hits the target.

Learn more about the dartboard problems here;

brainly.com/question/18451819

7 0
3 years ago
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