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Alenkinab [10]
3 years ago
5

Graph the lines by finding the points of intersection with the axes (intercepts): y=2x+2

Mathematics
1 answer:
QveST [7]3 years ago
6 0

For the purpose, it is convenient to put the equation into intercept form:

x/a + y/b = 1

Here, we can divide by 2 and subtract the x-term to get

x/(-1) + y/2 = 1

Then we can see that the x-intercept is (-1, 0) and the y-intercept is (0, 2).

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Maya has to type a document of 2160 words. The graph below shows her initial progress. If
aksik [14]

The time it takes to type the document increases proportionately to the

number of words in the document.

  • The time it would take to type the document is; <u>36 minutes</u>

Reasons:

From the possible figure from a similar question, we have;

The points on the graph are; (0, 0), (1, 60), (2, 120), (3, 180), (4, 240)

The graph is a straight line, therefore, given that the starting point is at the origin, using the points, (0, 0), (1, 60), we have;

The slope of the graph = 60

The y-intercept = 0

The equation that represents the proportional relationship shown on the graph is therefore;

y = 60·x

Where;

y = The number of words

x = The time it takes to type the document

The time it would take Maya to type the document of 2,160 words is given as follows;

2,160 = 60·x

Therefore;

\displaystyle Time, \ x = \frac{2,160 \ words}{60 \ words/minute}  = \mathbf{36 \ minutes}

The time it would take Maya to type the document is x = <u>36 minutes</u>

Learn more about proportional functions here:

brainly.com/question/88422

4 0
3 years ago
The mean and standard deviation of a normal distribution are 150 and 12 respectively. What percentage of values lie between:
Semenov [28]

Answer:

Step-by-step explanation:

Use a calculator with built-in statistical functions.  The function applying here is normcdf(, the "cumulative density function."  

(a) The percentage of values lying between 138 and 162 is

norm(138,162, 150, 12), which comes out to 0.683, or 68.3%.

(b)  Find norm(126, 174, 150,12):  0.945, or 94.5%

(c)  Find norm(126,162, 150,12);  0.819, or 81.9%

(d) Find norm(162, 174,150,12):  0.136, or 13.6%

8 0
3 years ago
Read 2 more answers
Find the value of x. Round your answer to the nearest tenth.
o-na [289]
Answer should be 4


Explanation: 30 divided by 8 = 3.75

3.75 rounded is 4
5 0
3 years ago
Please say which goes where.. 20 POINTS!!
Alisiya [41]
16 divided by 14, 1/7 times 8, and 16/14 goes under 8/7. 14/16, 1/16 times 14, 7 divided by 8 go under 7/8

8 0
3 years ago
Read 2 more answers
Is the expression 3(x+1 1\2)-3 equivalent to 3x+1 1\2
Ket [755]

Answer:

no

Step-by-step explanation:

first simplify or solve the original expression ( 3(x + 11/2)-3 )

1.  Parenthesis go first so do the 11/2 = 5.5 (x+5.5)

2. Distribute the 3 to the parenthesis (3x + 16.5)

3. subtract 3 from the expression (3x + 13.5)

Compare new equation with 3x + 11/2. Are they the same? (3x+13.5 vs. 3x + 11/2)

They are not the same thing.

3 0
3 years ago
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