How many answers are in each of these three questions: 1. x squared minus three x plus four equals zero 2. Two x squared plus fo
1 answer:
You might be interested in
Answer:
The value of mean is
Step-by-step explanation:
The normal distribution of the soft-drink dispensing machine can be stated statistically like
~
The standard form representation is
Now we need to obtain in such a way that
In standard form
Since
This means
Now looking at the z-table for probability of 0.99 we obtain 1.88
i.e
Making
Answer:
The value of x in centimeters is 22.5 cm
Step-by-step explanation:
The corresponding sides of the similar triangles are proportion which means have equal ratios
∵ Δ ABC is similar to Δ FGH
∵ AB and FG are corresponding sides
∵ BC and GH are corresponding sides
∵ AC and FH are corresponding sides
→ That means the ratios between them are equal
∴ =
=
∵ AB = 6 cm and FG = 15 cm
∵ BC = 5 cm and GH = 12.5 cm
∵ AC = 9 cm and FH = x
→ Substitute them in the rule above to find x
∴ =
=
→ By using cross multiplication with the 1st and 3rd ratios
∵ 6 × x = 15 × 9
∴ 6x = 135
→ Divide both sides by 6 to find x
∵ =
∴ x = 22.5 cm
∴ The value of x in centimeters is 22.5 cm