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4 years ago

Mr. Taylor raised all his students’ scores on a recent test by five

1 answer:

3 0

2. The mean is the average so it phase shifted up five points where as the range is the difference between the highest and lowest # which wouldn't change if all the numbers were adjusted.

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Help!!!!! I'm timed!!!!!

djverab [1.8K]

Answer:

Option C, $28$

Step-by-step explanation:

$2\sqrt{98} * 2$

$2\sqrt{7^2*2} *\sqrt{2}$

$14\sqrt{2} * \sqrt{2}$

$14*2$

$28$

Answer: Option C, $28$

5 0

4 years ago

5x + 2y = 3 2x+3y=-1 Solve

professor190 [17]

Answer:

x = 1

y = -1

Point = (1,-1)

Step-by-step explanation:

2x + 3y = -1 = y = -2/3 - 1/3

5x + 2(-2/3 - 1/3) = 3

5x - 1 1/3 - 2/3 = 3

5x - 2 = 3

+2 +2

5x = 5

x = 1

2(1) + 3y = -1

2 + 3y = -1

-2 -2

3y = -3

y = -1

3 0

3 years ago

Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.Josiah has punch c

love history [14]

Let x be the number of weeks; therefore, the two linear equations are

$\begin{gathered} T=2+7x \\ \text{and} \\ C=11+4x \end{gathered}$

Where T stands for the punches on the tea punch card and C for the punches on the coffee punch card.

Solving by substitution. Set T=C, then

$\begin{gathered} T=C \\ \Rightarrow2+7x=11+4x \\ \Rightarrow3x=9 \\ \Rightarrow x=\frac{9}{3}=3 \\ \Rightarrow x=3 \end{gathered}$

Thus, substitute the value of x=3 into the first equation,

$\begin{gathered} x=3 \\ \Rightarrow T=2+7\cdot3=23 \\ \Rightarrow T=23 \end{gathered}$

Thus, after 3 weeks, Josiah will have the same number of punches on each card, and he will have 23 punches on each card.

6 0

1 year ago

Determine whether each point could represent an x-intercept, y-intercept, both, or neither.

kolezko [41]

The answer to your question is E

4 0

3 years ago

-6 · f(3) – 6 • g(-1) =

Lubov Fominskaja [6]

Answer:

−18f+6g

Step-by-step explanation:

5 0

3 years ago