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2 years ago

What is the slope of the line that goes through the points (-4,2) and (8,5)?

Mathematics

1 answer:

trapecia [35]2 years ago

4 0

Hello,

y = ax + b where a is the slope

We have A(-4 ; 2) and B(8 ; 5)

$a = \frac{yb - ya}{xb - xa} = \frac{5 - ( - 4)}{8 - 2} = \frac{9}{6} = \frac{3 \times 3}{3 \times 2} = \frac{3}{2}$

→ Slope : 3/2

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In the section describing the survey methods, the report states, “For results based on the total sample of national adults, the

Yakvenalex [24]

Answer:

The interpretation of that same problem is listed throughout the section below on explanation.

Step-by-step explanation:

Interpretation:

Researchers seem to be confident with 95% that the sample selection standard error seems to be + as well as - 4 percent respectively.
This same margin of sampling error would then decrease from either the mean or average value by four percentage points smaller or even larger, it describes the survey method.

So that the above is the right answer.

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3 years ago

P decreased by 5 write an equation

marissa [1.9K]

P-5??? It's an expression

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3 years ago

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A seller buys an item from a manufacturer for $9,500. He increases the cost by 5 percent. What is the markup value?

Lynna [10]

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3 years ago

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6.) Alan, Becky, Jesus, and Mariah are four students in the chess club. If two of these students will be selected to represent t

Artist 52 [7]

Let's begin by listing out the information given to us:

There are four students: n = 4

Number of students to be selected: r = 2

To calculate the combination of 2 students to be chosen, we use:

$\begin{gathered} ^4C_2=\frac{n!}{(n-r)!}=\frac{4!}{(4-2)!}=\frac{4!}{2!} \\ ^4C_2=\frac{4\cdot3\cdot2\cdot1}{2\cdot1}=\frac{4\cdot3}{1}=12 \\ ^4C_2=12 \end{gathered}$

Therefore, there 12 possible combinations from these

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1 year ago

Subject : Maths Level : High school Topic : Surds Points : 72

Mila [183]

Answer:

a = 5

Step-by-step explanation:

Simplify:

√5(√8 + √18) =
√5*8 + √5*18 =
√40 + √90 =
√4*10 + √9*10 =
2√10 + 3√10 =
(2 + 3)√10 =
5√10

The value of a:

a√10 = 5√10
a = 5

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3 years ago