Answer:
(a) P = 4x+10
(b) x = 6
Step-by-step explanation:
(a) The perimeter is the sum of the side lengths:
P = AB +AC +BC = 2x +2x +10
P = 4x+10
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(b) For P=34, the value of x is ...
34 = 4x +10 . . . .substitute given value for P
24 = 4x . . . . . . . subtract 10
6 = x . . . . . . . . . .divide by 4
Answer:
The probability is 0.9938
Step-by-step explanation:
In this question, we are asked to calculate the probability that the mean blood pressure readings of a group of people is less than a certain reading.
To calculate this, we use the z score.
Mathematically;
z = (mean - value)/(standard deviation/√N)
From the question, we can identify that the mean is 125, the value is 123 , the standard deviation is 9.6 and N ( total population is 144)
Let’s plug these values;
z = (125-123)/(9.6/√144) = 2.5
Now we proceed to calculate the probability with a s score less than 2.5 using statistical tables
P(z<2.5) = 0.9938
Answer:
(-1, -2)
Step-by-step explanation:
-9x= 5 - 2y
15x = -11 + 2y => 2y = -11 - 15x
Plug the value for 2y into the first equation.
-9x = 5 - 15x - 11. Solve for x.
-9x = -6 - 15x.
-9x + 15x = -6.
6x = -6.
x = -1.
Now that we found x, we will solve for y.
2y = -11 - 15(-1)
2y = -11 + 15
2y = -4
y = -2.
Thus, our solution set is (-1, -2).
Hope this helps!
The answer to this equation is -24 because in each of the parentheses the product is -12 and negative numbers add to each other
Answer:
The question is incomplete...
Step-by-step explanation:
