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vodka [1.7K]
3 years ago
6

What step of the design process is this: “Used the test results to identify any modifications that they needed to make to improv

e their design. Once they identified these modifications, they returned to the previous steps of the process and made and tested these modifications.”
Mathematics
1 answer:
sergiy2304 [10]3 years ago
4 0

I dont know how to answer this question

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Brianna babysits on the weekend. She charges $7 per hour. Last weekend she made $63. How many hours did she babysit?
Verizon [17]

Answer:

7h=63 so a because she charges $7 per hour and earned a total of $63

7 0
3 years ago
Enter the set described below:
LenKa [72]

Answer:

  {1, 5, 25, 125, 625}

Step-by-step explanation:

The smallest positive integers that meet the requirement will be ...

  5^0 = 1

  5^1 = 5

  5^2 = 25

  5^3 = 125

  5^4 = 625

As a set, these numbers are {1, 5, 25, 125, 625}.

7 0
2 years ago
What is inequalities?<br> What is the form?
SIZIF [17.4K]

Answer: In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. It is used most often to compare two numbers on the number line by their size

Step-by-step explanation:

3 0
2 years ago
Find the equation of the line through point (8,−9) and perpendicular to 3+8=4.
raketka [301]

The equation of the line through the point (8,−9) and perpendicular to 3x+8y=4 is given by 8x - 3y = 91.

We are aware that any straight line's equation can be expressed as

y = mx + c,

where m denotes the slope and c denotes a constant.

Also, two perpendicular lines' slopes are the negative reciprocals of one another.

Here, the equation of the given straight line is

3x+8y=4

i.e. 8y = 4 -3x

i.e. y = (4/8) - (3/8)x

Now the negative reciprocal of - 3/8 is 8/3.

Then we can write the equation of the perpendicular line is

y = (8/3)x + c ...(1)

Since (1) passes through the point (8, -9), so we can put x = 8 and y = -9 in (1) to get the value of c.

So, -9 = (8/3)*8 + c

i.e. -9 = 64/3 + c

i.e. c = -9 -64/3 = - (27 + 64)/3 = - 91/3

(1) can be written as

y = (8/3)x - (91/3)

i.e. 3y = 8x - 91

i.e. 8x - 3y = 91

Therefore the equation of the line through the point (8,−9) and perpendicular to 3x+8y=4 is given by 8x - 3y = 91.

Learn more about perpendicular lines here -

brainly.com/question/12209021

#SPJ10

4 0
1 year ago
What is the value of + 2x2, when x = 3?<br> х<br> 11<br> O 14<br> O 20
evablogger [386]

x = 3 \\ 2 {x}^{2}  = 2 \times  {3}^{2}  \\  = 2 \times 9 \\  = 18

Hope this will help...

5 0
2 years ago
Read 2 more answers
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