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BartSMP [9]
2 years ago
14

If a=7 and b+c=67, find a²+ab+ac

Mathematics
2 answers:
almond37 [142]2 years ago
7 0

Answer:

thank \: you

Step-by-step explanation:

a = 7 \\ b + c = 67 \\we \: want \: to \: find \:   {a}^{2}  + ab + ac \\  {a}^{2}  + a(b + c) \\  =  {7}^{2}  + 7(67) \\  = 49 + 469 \\  = 518 \\ thank \: you

Stels [109]2 years ago
6 0

Hope this will help..........

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Use associative property of addition to find the total of 1, 10, and 18 in two different ways
allochka39001 [22]
1 + 10 + 18 = (1 + 10) + 18

1 + 10 + 18 = 11 + 18 

1 + 10 + 18 =  29

OR

1 + 10 + 18 =  1 + (10 + 18)

1 + 10 + 18 = 1 + 28

1 + 10 + 18 = 29
6 0
3 years ago
A tile pattern has five tiles in Figure 0 and adds seven tiles in each new figure. Write a linear equation that represents this
Olenka [21]

The linear equation that represents the <u>number of tiles in figure x</u> is given by:

y = 7x + 5

---------------------

A linear equation has the format:

y = mx + b

In which:

  • m is the slope, that is, the rate of change.
  • b is the y-intercept, that is, the value of y when x = 0.

---------------------

  • Figure 0 has 5 tiles, that is, when x = 0, y = 5, thus b = 5
  • Seven new tiles in each figure, that is, a rate of change of 7, thus m = 7

The number of tiles in figure x is given by:

y = 7x + 5

A similar problem is given at brainly.com/question/16302622

4 0
2 years ago
Tax rates are 10% on the first 10,000 you earn and 20% on amounts over that. You earn 15,000. What is your tax?
OleMash [197]
This problem can be divided into two parts Part 1 - income up to $10,000 times 10% = $1,000 Part 2 - income over $10,000 = $15,000 - 10,000 = $5,000then, $5,000 times 20% = $1,000 Finally, $1,000 + 1,000 = $2,000
8 0
3 years ago
Find tan , sin , and seco, where 0 is the angle shown in the figure.
kicyunya [14]

Answer:

  • tan(θ) = 5/3
  • sin(θ) = 5√34/34
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Step-by-step explanation:

The hypotenuse is given by the Pythagorean theorem:

  h = √(3² +5²) = √34

The trig functions are the ratios of sides:

  Tan = Opposite/Adjacent

  tan(θ) = 5/3

__

  Sin = Opposite/Hypotenuse

  sin(θ) = 5/√34 = (5/34)√34

__

  Sec = Hypotenuse/Adjacent

  sec(θ) = √34/3

3 0
3 years ago
A boy bought a sandwhich 49 inches long. He want to cut it into 3 pieces. the middle piece is 5 inches longer than the shortest
miss Akunina [59]
S+M+L=49

(L-8)+(S+5)+L=49

2L+S=49

6 0
3 years ago
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