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viktelen [127]
3 years ago
9

8 (6× + 5) + 2× equivalent

Mathematics
1 answer:
Licemer1 [7]3 years ago
5 0
8(6x + 5) + 2x
8(6x) + 8(5) + 2x
48x + 40 + 2x
50x + 40
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Use the drawing tools to form the correct answer on the number line.
Ainat [17]

Answer:

In the picture

Step-by-step explanation:

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2 years ago
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Help on the second graph
Deffense [45]

Answer:

<u>first graph:</u>

function.

Not one-one

onto

<u>Second graph:</u>

Function

one-one

not onto.

Step-by-step explanation:

We know that a graph is a function if any vertical line parallel to the y-axis should intersect the curve exactly once.

A graph is one-one if any horizontal line parallel to the x-axis or domain should intersect the curve atmost once.

and it is onto if any horizontal line parallel to the domain should intersect the curve atleast once.

Hence, from the <u>first graph:</u>

if we draw a vertical line parallel to the y-axis then it will intersect the graph exactly once. Hence, the graph is a function.

But it is not one-one since any horizontal line parallel to the domain will intersect the curve more than once.

But it is onto, since any horizontal line parallel to the domain will intersect the curve atleast once.

<u>Second graph</u>

It is a function since any vertical line parallel to the co-domain will intersect the curve exactly once.

It is not one-one since any horizontal line parallel to the x-axis does not intersect the graph atmost once.

It is not onto, since any horizontal line parallel to the domain will not  intersect the curve atleast once.

7 0
3 years ago
What is the measure of MN?<br><br> A. 45<br> B. 29<br> C. 74<br> D. 37
Diano4ka-milaya [45]

Answer:

45°

Step-by-step explanation:

There are sets of formulas you can refer to for different situations like this. In your case here, you need to apply the formula and solve for the unknown. My work is in the attachment.

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3 years ago
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15 more than three times a number is equal to 75<br> Also please do a step by step
Vlad [161]

Answer:

Step-by-step explanation:

3n+15=75

three times a number is 3n. +15 is 15 more.

3n+15=75  subtract 15 from both sides to get the 3n alone

3n=60 divide by 3 to get the n by itself

n=20

4 0
2 years ago
Joel wants to fence off a triangular portion of his yard for his chickens. The three pieces of fencing he haas to use are 8 feet
Sedaia [141]

No, it will not be able to make a right triangle.

<em><u>Solution:</u></em>

Given that,

Joel wants to fence off a triangular portion of his yard for his chickens.

The length of three peices of fencing are 8 feet , 15 feet and 20 feet

For making it a right triangle it must satisfy the "Pythagorus theorem"

Pythagorean theorem, states that the square of the length of the hypotenuse is equal to the sum of squares of the lengths of other two sides of the right-angled triangle.

For a right angled triangle with sides a, b, c

c^2 = a^2+b^2

Given sides are:

a = 8 feet

b = 15 feet

c = 20 feet

Substituting the values in above formula

20^2 = 8 ^2+15^2\\\\400 = 64 + 225\\\\400\neq 289

Since the pythogoras formula is not satisfied, the given sides cannot form a right angled triangle

Thus , No, it will not be able to make a right triangle.

7 0
3 years ago
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