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Anika [276]
3 years ago
9

Chris and Bianca got 80 points in all the spelling contest each child got more than 20 points could each child have gotten.

Mathematics
2 answers:
Nina [5.8K]3 years ago
6 0
What is the question?

ivolga24 [154]3 years ago
6 0
How many points could each child have gotten?
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jeka57 [31]

(k \circ p)(x)=k(p(x))=k(x-3) \\ \\ =2(x-3)^2-5 \\ \\ =2(x^2 - 6x+9)-5 \\ \\ =\boxed{2x^2 - 12x+13}

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2 years ago
Graph the inequality y>2/3x-1
xenn [34]

Answer:

graph{y>2/3x-1 [-10, 10, -5, 5]}

Explanation:

First, graph a line with the equation y=23x−1. This equation is in the form y=mx+b. 23 is the slope and −1 is the y-intercept.

graph{2/3x-1 [-10, 10, -5, 5]}

However, we are graphing an inequality so we're gonna have to shade either the area above the line or below the line. First, let's look at the inequality symbols.

> Greater than

< Less than

≥ Greater than or equal to

≤ Less than or equal to

If the inequality includes equal to, then the line will be solid. If not, then the line will be dotted. Since the inequality y>23x−1 doesn't contain the equal to, the line will be dotted.

The direction of the inequality sign matters too. If it's greater than, then the top area will be shaded. If it's less than, then the bottom area will be shaded. Since the inequality y>23x−1 has greater than, the top area will be shaded.

graph{y>2/3x-1 [-10, 10, -5, 5]}

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3 years ago
A function of the form f(x) ott is modified so that the b value remains the same but the a value is increased by 2. How do
Digiron [165]

Answer:

Step-by-step explanation:

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Using the formula <span>Z = (X - μ) / σ, X being 900, </span>μ being 1100, and <span> σ being 100, we can get the Z-score of -2.</span>
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3 years ago
What is the value of n?
BARSIC [14]

Answer:

n=4

Step-by-step explanation:

7n-3n=16

4n=16

n=16/4

n=4

6 0
3 years ago
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