(a) put in t = 3 into the r(t) equation provided. Answer will be in gigameters
(b) Use the value of r(t) found in part (a) in the surface area of a sphere equation. S = 4(pi)r² Answer, S will be in units Gm²
(c) This is saying put the equation r(t) into the equation S(r) to make a new equation S(t) or h(t) as they put it.
h(t) = 4(pi)(1.36t + 0.002)²
(d) Put t = 3 into the new equation. Answer will agree with b
Answer:
Step-by-step explanation:
e number 45810 contains the combination "58"; the numbers 45180 and 48510 do not contain the combination "58" How many 5-digit numbers (between 10 000 and 100 000) contain the combination "58"?
The equivalent expression is 15x + 104 /4
<h3>What are algebraic expressions?</h3>
Algebraic expressions are defined as expressions comprised of constants, variables, terms, coefficients and factors.
They are also made up of arithmetic or mathematical operations such as;
- Addition
- Subtraction
- Division
- Multiplication
- Bracket, etc
Given the expression:
2(3/4x+7) - 3(1/2x-5)
solve for the bracket
3 ( 3x + 28/4) - 3 (x - 10 /2)
expand the bracket by multiplying
9x + 84 / 4 + 3x + 10/ 2
Find the lowest common multiple
9x + 84 + 6x + 20 /4
collect like terms
15x + 104 /4
Thus, the equivalent expression is 15x + 104 /4
Learn more about equivalent expressions here:
brainly.com/question/24734894
#SPJ1
Answer:
jil got 18 chocolates
Step-by-step explanation:
let the ratio constants be x,
so, jil has 3x chocolates
katie has 4x chocolates
and we know total chocolates = 42
then,
=》3x + 4x = 42
=》7x = 42
=》x = 42 ÷ 7
=》x = 6
so, jil got 3x = (3 × 6) = 18 chocolates
katie got 4x = (4 × 6) = 24 chocolates