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Rufina [12.5K]
3 years ago
8

Please answer! ill give you brainliest :)

Mathematics
2 answers:
KiRa [710]3 years ago
8 0
:) okay..............................
Levart [38]3 years ago
6 0

Answer:

answer what?

Step-by-step explanation:

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PLEASE HELP (URGENT)! WILL MARK THE BRAINLIEST!!! PLEASE HELP!!!!!
sp2606 [1]

The reason why the results from the online calculator not correct he did not put the inputs into the calculator, even though it says that he inputs the information, what he did not input was the inputs.

8 0
3 years ago
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The square of a number plus three times the number is 70. find the numbers.
Harrizon [31]

Answer:

Step-by-step explanation:

The equation for that is

x^2+3x=70

If we subtract over the 70, we have a quadratic that we can factor to solve for the values of x that will make that equation true.

x^2+3x-70=0

Now we need the factors of 70 that will either add or subtract to give us the linear term of 3. The factors of 70 that will work are 10 and 7. 10 times 7 is 70, and 10 - 7 = 3:

x^2+10x-7x-70=0 and now we will factor by grouping:

(x^2+10x)-(7x-70)=0 and factor out what's common:

x(x+10)-7(x+10)=0

The factor (x + 10) is common, so we will now factor that out:

(x+10)(x-7)=0

By the Zero Product Property, either x + 10 = 0 or x - 7 = 0, so x = -10 or 7

Those are the 2 numbers that will work.

(-10)^2+3(-10)=70 simplifies to

100 - 30 which does in fact equal 70. OR

(7)^2+3(7)=70 which simplifies to

49 + 21 which also equals 70.

So you're done!

3 0
3 years ago
4/6 written as a ratio is <br>​
earnstyle [38]

Answer:

4:6

Step-by-step explanation:

Ratios and fractions can be written interchangably

6 0
3 years ago
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An integer from 300 through 780, inclusive is to be chosen at random, find the probability that the number is chosen will have 1
exis [7]

Answer:

  • 93/481

Step-by-step explanation:

<u>Total number of integers from 300 through 780, inclusive:</u>

  • 780 - 299 = 481

<u>Number of integers with at least one of digit 1:</u>

  • Hundreds - 0,
  • Tens - 5*10 = 50 (31th, 41th, 51th, 61th, 71th)
  • Units - 4*9 + 7 = 43 (300 till 699 and 700 till 780)
  • So in total 50 + 43 = 93

<u>The probability is:</u>

  • P = favorable outcomes/total outcomes = 93/481
6 0
2 years ago
Identify which triangles are congruent, and explain your answer.
Paha777 [63]
I believe that A and D would be the correct answer. Because both are 30,60,90 triangles and would be congruent. The other 2 triangles only have 1 angle and their side measures are at two different places meaning they cannot be congruent.
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3 years ago
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