To solve this you just do ehat was done to the coordinates. So x goes from x to 4x do you are mutiplying by 4. and the same goes for y. so your scale factor is 4
2 times 4 is 8 and 1 times 4 is four
A(8,4)
4 times 4 is 16 and 1 times four is four
B(16,4)
Four times four is sixteen and negitive three times four is negitive 12
C(16,-12)
<span>Given the options the answer will be B. </span>
Answer:
x=25
Step-by-step explanation:
4x-10x=x-175
Move all the x values to one side:
175=x+10x-4x
Simplify:
175=7x
Divide both sides by 7:
25=x
Answer:
n=10
a10= - 3 (2)^(10-1)= -3(2)^9
= -1536
Answer:
0.68268
Step-by-step explanation:
We solve using z score
z = (x-μ)/σ, where
x is the raw score
μ is the population mean
σ is the population standard deviation.
For x = 85
z = 85 - 105/20
z = -1
Probability value from Z-Table:
P(x = 85) = 0.15866
For x = 125
z = 125 - 105/20
z = 1
Probabilty value from Z-Table:
P(x = 125) = 0.84134
The probability that a randomly selected adult has an IQ between 85 and 125 is calculated as:
P(x = 125) - P(x = 85)
= 0.84134 - 0.15866
= 0.68268
Answer:
y+4=-3(x+1)
Step-by-step explanation:
You start by calculating the slope which is y1-y2 over x1-x2, which plugging the numbers in, comes out to be -3. Then, taking the point slope formula
(y-y1=m[x-x1]), you just plug the rest of the variables in.
