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Monica [59]
3 years ago
11

Mathematics Help Please!

Mathematics
1 answer:
Brrunno [24]3 years ago
8 0
3/7 * -2 1/5

= 3/7 * -11/5  =  -33/35

Answer is -33/35
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On the blueprint for a new house, the length of a room, which is supposed to
Debora [2.8K]

Answer:

6 inches

Step-by-step explanation:

just divide both 12 and 8 by 2 since 4 is half of 8.

7 0
3 years ago
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E vertices of ∆ABC are A(2, 8), B(16, 2), and C(6, 2). The perimeter of ∆ABC is units, and its area is square units.
UNO [17]

We can use the distance formula to calculate perimeter: \sqrt{(x_{1}-x_{2})^2+(y_{1}-y_{2})^2} = Distance


From A to B: √232

From B to C: 10

From C to A: √52


10 + √232 + √52 = 10 + 2√58 + 2√13


Perimeter = 10 + 2√58 + 2√13 units


For Area we can use matrices, but since one of the sides is horizontal, we can just calculate with distance formula and area of triangle formula.


The area of a triangle formula is 1/2(h x b)

h=height

b=base


So the height is 6 and the base is 16. (I graphed it.)

16 * 6 = 96 96/2 = 48 Area: 48 square units.

8 0
3 years ago
Enter the correct value so that each expression is a perfect-square trinomial.
adoni [48]
2x-10x+
It’s answer is 25
6 0
3 years ago
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The excluded values of a rational expression are 2 and 5. Which of the following could be this expression?
muminat
<span>You have not added the options, therefore, I cannot provide an exact answer. However, I can help you with the concept.

In any fraction, the <u>denominator cannot be equal to zero</u> because this would make the fraction <u>undefined</u>.
<u>Excluded values</u> are the values that would make the denominator equal to zero.

We are given that the excluded values are 2 and 5, this means that the factors of the denominator are (x-2) and (x-5)
This means that the denominator is x</span>²<span> - 7x + 10

Pick the fraction which has this denominator.

Hope this helps :)</span>
6 0
3 years ago
Read 2 more answers
Linear Inequality
Oksanka [162]

Answer:

Step-by-step explanation:

Temporarily substitute the = symbol in this given inequality:   3x - 4y = 8.

Now pick 2 or 3 y values and find the corresponding x value for each:

If y = 2, 3x - 4(2) = 8, so that 3x = 16 and x = 16/3.  Thus, one point on the graph is (16/3, 2).

If y = 0, 3x - 4(0) = 8, and so 3x = 8, or x = 8/3.  Another point on the graph is (8/3, 0).

Now plot these two points (8/3, 0) and (16/3, 2), and draw a solid line through them (because " ≥ " includes an " = " sign).

Finally, invent a 3rd point that is NOT on this solid line.  Substitute the x- and y- coordinates into the original inquality 3x - 4y ≥ 8.  Two possible outcomes are:  a) The inequality is true.  All solutions are on this side of the solid line you drew.  Shade that side of the line.  b) The inequality is false.  Do NOT shade that side of the line.

Note:  an easier way of graphing the solid line is described as follows:

Let x = 0 and find y:  3(0) - 4y = 8, so that y = -2 and a point on the line is (0, -2).

Then let y = 0 and find x:  3x = 8, or x = 8/3 and this corresponds to the point (8/3, 0) on the line.

8 0
3 years ago
Read 2 more answers
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