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stepladder [879]
3 years ago
8

Need help with 2 and 3 and express I’m radical form

Mathematics
1 answer:
kondaur [170]3 years ago
4 0
This is just simple Pythagorean’s theorem. a^2 + b^2 = c^2

Number 2:
5^2 + x^2 = 10^2
25 + x^2 = 100
x^2 = 75
x = sqrt 75 = 5*sqrt(3)

Number 3:
4^2 + x^2 = 7^2
16 + x^2 = 49
x^2 = 33
x = sqrt 33
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What is the rule in this sequence (0,21) (1,18) (2,15) (3,12) (4,9) (5,6) (6,3) (7,0) (8,-3) (9,-6) (10,-9)
anastassius [24]

Answer:

x + 1 & y - 3

Step-by-step explanation:

Because... the x-values are going up by 1 digit each and the y-values are going down by 3 digits each.

6 0
3 years ago
Carmela randomly selected 65 stamps from a stamp collection. Eleven of these were commemorative stamps. What is the interval est
Olenka [21]
Since there is no mean, we need to first get the probability:
p = 11/ 65 = 0.1692
This will make it easier to compute for the interval estimate. Interval Estimate = probability ± margin of error
upper limit = 0.1692 + 0.025 = 0.1942

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3 0
3 years ago
Which of the following inequalities would be graphed with an open circle?
icang [17]

3(x - 2) < 18 and h + 6 > -3h + 12 would be graphed with an open circle.

Open circle is a term used for numbers that are less than (<) or greater than (>). On the other hand, Closed circle is used for numbers that are less than or equal to (≤ ) and greater than or equal to (≥).

Here, we are given four inequalities, let us check them one by one-

A. h + 6 > -3h + 12

⇒ 4h > 6

or h > 3/2

Here, we see that there is no equality sign, this means that 3/2 won't be included and hence h + 6 > -3h + 12 would be an open circle inequality.

B. 7 ≥ d/3

⇒ d ≤ 21

Here, we can clearly see the equality sign which means that 21 will be included. Hence, 7 ≥ d/3 would not be graphed with an open circle.

C. 3(x - 2) < 18

x - 2 < 6

x < 8

Here, we see that there is no equality sign, this means that 8 won't be included and hence 3(x - 2) < 18 would be graphed with an open circle.

D. 2y ≤ 14

y ≤ 7

Here, we can clearly see the equality sign which means that 7 will be included. Hence, 2y ≤ 14 would not be graphed with an open circle.

Thus, 3(x - 2) < 18 and h + 6 > -3h + 12 would be graphed with an open circle.

Learn more about inequalities here-

brainly.com/question/24372553

#SPJ9

3 0
1 year ago
Simplify expression.<br> help me please
tatuchka [14]

Answer:

\frac{-1}{x+3}

Step-by-step explanation:

Hope this helps!

6 0
2 years ago
8th grade geometry please help
Alex777 [14]
Okay so the value of X is 9x^2/7
3 0
3 years ago
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