Answer:
80 units
Step-by-step explanation:
v = 1/3 bh
v₁ = 1/3 * b * h₁ = 344
v₂ = 1/3 * b * h₂ = 301
v₁ / v₂ = h₁ / h₂ = 344 / 301
h₂ = h₁ - 10
h₁ / (h₁ - 10) = 344 / 301
344 * (h₁ - 10) = 301 * h₁
344* h₁ - 3440 = 301 * h₁
43 * h₁ = 3440
h₁ = 80
Step-by-step explanation:
sorry answer ia not clear
Average means add all scores and divide by number of scores earned
last score is x
so the sum is 75+81+x
3 scores so (75+81+x)/3=average
must be no less than (greater than or equal to 80)
(75+81+x)/3≥80
solve
times both sides by 3 to clear fraction
75+81+x≥240
156+x≥240
minus 156 from both sides
x≥84
the studen must earn at least 84 on last exam
The value of x is 1.5.
Step-by-step explanation:
Step 1:
First, we must convert the mixed fractions into improper fractions.
To do this, we multiply the whole number with the denominator of the fraction and add with it the numerator of the same fraction whereas the denominator remains unchanged.
To convert the fraction
Step 2:
So
By cross multiplying the fraction on the left-hand side of the equation, we get
So the value of x is 1.5.
1. there is a common difference of 4, so ur next terms are 13,17
2. there is a common difference of -2
3. A(n) = -14 + (n-1) * 2...n = 9
A(9) = -14 + (9-1) * 2
A(9) = -14 + 8 * 2
A(9) = -14 + 16
A(9) = 2
4. f(n) = 3 + 4(n-1)