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Pani-rosa [81]
3 years ago
14

Harriet thinks of a number.

Mathematics
2 answers:
umka2103 [35]3 years ago
6 0
Let the original number be x
X^2 + 11 = 36
Subtract 11
X^2 = 25
Square root both
X = 5
Solution: her original number is 5
makvit [3.9K]3 years ago
3 0

Answer:

5

Step-by-step explanation:

36-11=25

the square root of 25 is 5. you just have to do the problem backwards

You might be interested in
What two numbers multiply to 120 and add to -26
Arisa [49]
The two numbers are -6 and -20

-20 x -6 = 120

-20 + (-6) = -26


3 0
3 years ago
Can some one help me w my math
KiRa [710]

Answer: It would be B

Step-by-step explanation:

;)

7 0
3 years ago
Maria's height while jumping on a a trampoline can be modeled by the equation h=-16t^2+18t+5. Where t=time in seconds and h=heig
Vadim26 [7]

Answer:

10.06 ft

Step-by-step explanation:

Maria's maximum height will occur when her velocity reaches zero (0). This means that she has stopped ascending and is about to begin descent.

The equation for the height reached by Maria on the trampoline is given as:

h=-16t^2+18t+5

To find her maximum height, we first have to find the time it will take her to get to that height and corresponding velocity (zero).

Her velocity can be found by differentiating her height i.e. dh/dt:

v = \frac{dh}{dt} = -32t + 18

Therefore, when v = 0:

0 = -32t+ 18\\\\=> 32t= 18\\\\t = 18 / 32 = 0.5625 secs

It takes her 0.5625 seconds to get to her maximum height.

Therefore, her height at that time (0.5625 seconds) is:

h=-16(0.5625)^2+18(0.5625)+5\\\\h = -16 * (0.3164) + 10.125+5\\\\h = -5.0624 + 15.125\\\\h = 10.06 ft

Therefore, her maximum height is 10.06 ft.

3 0
3 years ago
Bobby is 12 years old. His age is nine
KatRina [158]

Answer:

65 because 12 plus 9 is 21 then 3 times 21 is 65

4 0
3 years ago
-(-4)(-6)-3/5(10+15)/1/3
Ksenya-84 [330]

Answer:

-29

solving steps:

\sf \hookrightarrow -\left(-4\right)\left(-6\right)-3/5\left(10+15\right)/1/3

\sf \hookrightarrow  -\left(-4\right)\left(-6\right)-3/5\cdot \:25/1/3

\sf \hookrightarrow  -24-3/5\cdot \:25/1/3

\sf \hookrightarrow  -24-5

\sf \hookrightarrow  -29

3 0
2 years ago
Read 2 more answers
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