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Alex17521 [72]
3 years ago
11

What is the square root of 49

Mathematics
2 answers:
True [87]3 years ago
8 0

Answer:

7

Step-by-step explanation:

7 x 7= 49

Vesna [10]3 years ago
8 0

Answer:

7

Step-by-step explanation:

√49 =7

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Sonja [21]

Answer:

490

Step-by-step explanation:

5 0
3 years ago
Emily wants to hang a painting in a gallery. The painting and frame must have an area of 31 square feet. The painting is 5 feet
FromTheMoon [43]

Emily could start with the quadratic equation

... (2x+5)(2x+6)=31

... 4x² +22x +30 = 31

And then subtract the right side to put it into standard form.

... 4x² +22x -1 = 0 . . . . . . corresponds to the first selection

8 0
3 years ago
Read 2 more answers
Write an addition equation or a subtraction equation (your choice!) to describe the diagram.
igor_vitrenko [27]
Addition: -9 + -2 = -11

Substraction: -9 - 2 = -11

3 0
2 years ago
In each turn of a game you toss two coins. if 2 heads come up, you win 2 points and if 1 head comes up you win 1 point. if no he
Blizzard [7]

The expected value of the number of points for each turn is 0.25

<h3>What is expected value?</h3>

Expected value describes the long term average level of a random variable based on its probabilty distribution.

Now, Probability that 2 heads come up is

P(2 is H) = 1/4

Probability that 1 heads come up is

P(1 is H) = 2/4

⇒P(1 is H) = 1/2

Probability that no head will come up

P(no H's) = 1/4

Hence, the expected value for winning of 2points, 1point and  lose of3 points is given as-

Expected value = 2 * P(2 is H) + 1 * P(1 is H)  - 3 * P(no H's)

⇒Expected value = 2 * 1/4 + 1 * 1/2 - 3 * 1/4

= 0.5 + 0.5 - 0.75

⇒Expected value = 0.25

More about Expected value :

brainly.com/question/22715250

#SPJ1

3 0
1 year ago
. In the equation x/ 35 = 7, what is the value of x? A. 5 B. 7 End of exam C. 245 D. 35
ki77a [65]
I had this question on an exam I took a few days ago. The answer is C. 245.
I think you have to multiply 35 by both sides, cancel the 35 with the 35 on the left to leave only x, and multiply 7 by 35 which = 245
4 0
3 years ago
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