Answer:
When the difference in the mean is about 20
Step-by-step explanation:
I did the test
5 / 16
m = rise/run = y2 - y1 / x2 - x1
m = 2-7 / (-4) - 12 = -5 / -16
m = 5 / 16
Answer:
∠ CDA = 32.3°
Step-by-step explanation:
See the given figure attached to this answer.
Draw perpendiculars from B and C on AD which is BE and CF.
Now, Δ ABE is a right triangle and AE² = AB² - BE² = 7.5² - 6² = 20.25
⇒ AE = 4.5 cm
Now, DF = AD - EF - AE = 24 - 10 - 4.5 = 9.5 cm {Since BC = EF}
And CF = BE = 6 cm.
Now, Δ CFD is a right triangle and
{Where β = ∠ CDA}
⇒ 
Degree.
So, ∠ CDA = 32.3° {Correct to one decimal place} (Answer)
Answer:
A mathematical equation or phrase that includes numbers, variables, and operators.
Step-by-step explanation:
Examples of numbers: 1, 5, 60, 100
Examples of variables: a, x, y
Examples of operators, +, -, x, /
Any mathematical equation with all 3 of the given examples is called an algebraic expression.
For example:
1 + 21 is not an algebraic expression, because although it has both numbers and operators, it does not have a variable.
x + 2 is an algebraic expression, because it has all 3 of the components listed above.
Hope I helped :)
Answer: 81 1/2
to determine the total amount of sugar we need to add
21 1/2 + 30 +30
^add the whole numbers the. add the fractions (21 +30+30) + (1/2)<<<
=81 + 1/2
which is equal to
81 1/2
