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Wittaler [7]
3 years ago
5

Brett earned scores of 74, 90, and 84 on his first three quizzes this term. What score

Mathematics
2 answers:
zloy xaker [14]3 years ago
7 0

Answer:

92

Step-by-step explanation:

(74 + 90 + 84 + 92) / 4 = 85

kozerog [31]3 years ago
4 0

Answer:

x ≥ 92

Step-by-step explanation:

let 'x' = necessary score

(74 + 90 + 84 + x) / 4 ≥ 85

(248 + x) / 4 ≥ 85

cross-multiply:

248 + x ≥ 340

x ≥ 92

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In which quadrants do solutions for the inequality y ≤ 2/7x +1 exist?
viktelen [127]

All four quadrants

<h2>Explanation:</h2>

We have the following inequality:

y \leq \frac{2}{7}x+1

So the first step we need to perform is to plot the line:

y = \frac{2}{7}x+1

If \ x=0 \\ \\ y=\frac{2}{7}(0)+1 \\ \\ y=1 \\ \\ \\ If \ y=0: \\ \\ 0=\frac{2}{7}(x)+1 \\ \\ x=-\frac{7}{2}=-3.5

So the line passes through the points:

(0,1) \ and \ (-3.5,0)

To find the shaded region, let us take a point, namely, the origin and test it in the inequality:

y \leq \frac{2}{7}x+1 \\ \\ 0\leq \frac{2}{7}(0)+1 \\ \\ 0\leq 1 \ True!

Since this is true, then the shaded region includes this point. This is shown below and <em>as you can see the solutions exist in all four quadrants.</em>

<h2>Learn more:</h2>

Inequalities: brainly.com/question/12890742

#LearnWithBrainly

3 0
3 years ago
Read 2 more answers
(2g+9h-5)-(6g-4h+2)<br><br>g=-2<br>h=5
xxTIMURxx [149]
(2(-2)+9(5)-5)-(6(-2)-4(5)+2)
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Mr. Walker gave his class the function f(x) = (x + 3)(x + 5). Four students made a claim about the function. Each student’s clai
damaskus [11]

Answer: stephen was correct

Step-by-step explanation:

i just did it now

7 0
3 years ago
What is the value of the expression, below, when x = 2 and y = 4?
allochka39001 [22]

Solution:

\frac{4x + y}{2y - x}

Numerator - 4x + y = 8 + 4 = 12

Denominator - 2y - x = 8 - 2 = 6

Final Answer:

12/6 = 2


3 0
3 years ago
What is the value of y?​
VARVARA [1.3K]
The value of y is 11

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