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vladimir1956 [14]
3 years ago
5

Can somebody help me solve these equations?! Thank you

Mathematics
2 answers:
sladkih [1.3K]3 years ago
8 0
1.) 7 * 7 is 49. That was the closest to 52 out of every other number. The answer for number one is 7.

2.) It is just an irrational number since it cannot be expressed as a fraction.

3.) The square root of 441 is the answer since it equals 21.
tensa zangetsu [6.8K]3 years ago
4 0
1) 7
2) irrational number (I believe)
3) square root of 441
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The graph shows the heights, y (in centimeters), of a plant after a certain number of weeks, x. Donna drew the line of best fit
Nezavi [6.7K]

Using the given linear function of best-fit, the most likely approximate height of the plant after 8 weeks would be of 7.4 centimeters.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

The line of best-fit goes through points (0,1) and (5,5). Point (0,1) means that the y-intercept is of b = 1. The slope is given as follows:

m = (5 - 1)/(5 - 0) = 4/5 = 0.8.

Hence the equation that gives the approximate height after x weeks is:

y = 0.8x + 1.

After 8 weeks, the expected height is:

y = 0.8 x 8 + 1 = 6.4 + 1 = 7.4 centimeters.

More can be learned about linear functions at brainly.com/question/24808124

#SPJ1

4 0
2 years ago
Evaluate 10x^2y^-2 for x = –1 and y = –2a) 10(2)^0b) 2 1/2c) 40d) 5/8
timurjin [86]
10x^2y^-2 = 10 x (-1)^2 x (-2)^-2 = 10 x 1 x 1/4 = 10/4 = 2 1/2
6 0
3 years ago
Write an algebraic expression for this situation . Steve made a down payment of $300 on a new tv. He paid $37 per month for x mo
Temka [501]
300+37x
300+37(9)
300+333
633
5 0
3 years ago
Bryan has a prepaid cell phone with a balance of $75. He is charged the same rate per minute. Which function represents the bala
Alexxx [7]

Answer:

36 minutes

Step-by-step explanation:

i have a different saying this so dont get mad

3 0
3 years ago
Which of the following is equal to 83 × 2?
8090 [49]

Answer:

A.

(80 × 2) + (3 × 2)

Step-by-step explanation:

83*2 =

Split 83 into an addition problem

(80+3) *2  =

Distribute

80*2 + 3*2

6 0
3 years ago
Read 2 more answers
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