Answer:
The answer is 60 minutes.
Step-by-step explanation:
Firstly you have to convert all the timing to minutes :
Next you can multiply together :
Answer:
<h2>2.) When dividing by −2, he did not change the direction of the sign. </h2>
Step-by-step explanation:
-4(x + 8) ≤ -2x + 50 <em>use the distributive property: a(b + c) = ab + ac</em>
-4x - 32 ≤ -2x + 50 <em>add 2x to both sides</em>
-4x + 2x - 32 ≤ -2x + 2x + 50
-2x - 32 ≤ 50 <em>add 32 to both sides</em>
-2x - 32 + 32 ≤ +50 + 32
-2x ≤ 82 <em>divide both sides by (-2) / </em><em>flip the inequality sign</em><em>/</em>
x ≥ -41
Andrew's mistake:
2.) When dividing by −2, he did not change the direction of the sign.
The equation of the parabola with points (-1, 3), (0.5, 4.5) and (0,3) is y = 2x² + 2x + 3
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
The pareabola equation is in the form:
y = ax² + bx +c
At point (-1, 3):
3 = a(-1)² + b(-1) + c (1)
At point (0.5, 4.5):
4.5 = a(0.5)² + b(0.5) + c (2)
At point (0, 3):
3 = a(0)² + b(0) + c (3)
From the equations:
a = 2, b = 2, c= 3
The equation of the parabola with points (-1, 3), (0.5, 4.5) and (0,3) is y = 2x² + 2x + 3
Find out more on equation at: brainly.com/question/2972832
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The shaded area's Fraction= 21/100 and Decimal = 0.21.
<u>Step-by-step explanation:</u>
When an area is divided into multiple smaller regions ( smaller squares ) is called parts.
In case of Squares, it can be divided into either rows or columns, sometimes both.
Form the given diagram, the square consists of 10 rows and 10 columns which makes 100 (10×10) parts in it.
One fraction is obtained by dividing it by the total number of parts.
In this square, 21 shaded fractions are given.
∴ The fraction of shaded Area = 21/100.
Decimal of shaded Area=0.21.
(X-2)^2+(y-4)=2.25
Standard form is (x-h)^2+(x-k)^2=r^2