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Mars2501 [29]
3 years ago
8

When the sum of 7 and three times a positive number is subtracted from the square of the​ number, 0 results. find the number?

Mathematics
1 answer:
schepotkina [342]3 years ago
3 0
<span>The answer is...
x^2 - (7 + 2x) = 0
x^2 - 2x - 7 = 0</span>
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The image is located below
Ivan

Answer:

288 ft³

Step-by-step explanation:

Volume of the pyramid,

base area × height × (1/3)

= (9×8)×12/3

= 72×4

= 288 ft³

7 0
3 years ago
Which of any of these Equation shows the relationship between Kevin's age x and his mothers age Y choose all that are correct 3x
KengaRu [80]

Answer:

b) y-3x = 1

c) 3x+1 = y

Step-by-step explanation:

I think you forgot to write a little part of the question. If your complete statment with this condition, i have the answer.

"Kevin said that if you triple his age the result will be 1 less than his mother age. Which of any of these Equation shows the relationship between Kevin's age x and his mothers age Y choose all that are correct

a) 3x-y=1

b) y-3x=1

c) 3x+1=Y

d) 3x=1-y"

you can write "the triple of this ages" as: 3x. and the result is y-1. That is:

3x = y-1

That equation can be rewrite as:

1. Passing -1 to the other side as +1 you will have: 3x+1=y. That is option c).

2. From last point  3x+1=y. Passing 3x to the other side as -3x you will have: y-3x=1. That is option b).

4 0
3 years ago
A student starts at (0,0) and walks to (12, 0), turns and then walks to (7,12). What is the total distance that this student wal
Harman [31]

Answer:

25

Step-by-step explanation:

(0,0) to (12,0) => the distance = 12

(12,0) to(7,12) => the distance =

√[(12-0)²+(7-12)²]=√(144+5) =√169 = 13

so, the total distance = 12+13 = 25

4 0
3 years ago
Car 6 truck 10 suv 14 minivan 15 at this rate how many trucks would pass Luann if 90 vehicles passed her?
kondaur [170]
I think that there would be 20 trucks because <span>6 + 10 + 14 + 15 = 45,    </span><span>6 + 10 + 14 + 15 = 45,     </span><span>45 + 45 = 90 </span>
5 0
3 years ago
Which of the following does NOT reveal the variation (spread) of the data? Check all that apply. Mean Mode Standard Deviation Ra
leonid [27]

Mean, mode and median does NOT reveal the variation (spread) of the data.

When analyzing data, the most sort for characteristics is the variation (spread) in the data.

The values of the data in a sample might be more closely near the mean in some data sets whereas in other data sets the values of the data might be spread out from the mean.

Common measure of variation or spread are the standard deviation, range, variance.

Find out more at: brainly.com/question/23754141

7 0
3 years ago
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