4 years ago

3x - 3y = -15 -x + y = 5

Mathematics

1 answer:

Katyanochek1 [597]4 years ago

4 0

Answer:

I don't understand what you're asking. can you put a question on this?

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The lengths of two sides of a triangle are given. Find the range of possible lengths for the third side.

Sladkaya [172]

Answer:

0 < x < 12

Step-by-step explanation:

According to the triangle inequality theorem, the sum of the two sides must be greater than the length of the third side. 6+6 = 12

0 < x < 12

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3 years ago

How does the length of the diameter of a circle relate to the length of the radius of that same circle

djyliett [7]

The diameter is twice as big as the radius

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3 years ago

Solve each equation for the given variable.<br> 1.<br> x - 17 = 28

Serga [27]

Answer:

x=45

Step-by-step explanation:

x=28+17

x=45

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3 years ago

Given the following data for resting heartrate among college students, what is the IQR? 57, 59, 60, 62, 62, 63, 64, 68, 70, 70,

aev [14]

Answer:

Step-by-step explanation:

The inter-quartile range (IQR) is the difference between the third and first quartile. The data gathered is:

57, 59, 60, 62, 62, 63, 64, 68, 70, 70, 71, 71, 73, 79, 87, 89, 90

The data set has 17 values, the first quartile is the average between the 4th and 5th values, while the third quartile is the average between the 13th and 14th values:

$Q_1 = \frac{62+62}{2}=62\\Q_3 = \frac{73+79}{2}=76$

The IQR is:

$IQR = Q_3 - Q_1 = 76 -62\\IQR = 14$

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3 years ago

Solve and Show ALL steps<br> |–4b – 8| + |–1 – b²| + 2b³ ; b = –2

julia-pushkina [17]

$|a|= \left\{\begin{array}{ccc}a&for\ a\geq0\\-a&for\ a \ \textless \ 0\end{array}\right\\\\Examples:\\\\|2|=2\ because\ 2\geq0\\|0|=0\ because\ 0\geq0\\|-5|=-(-5)=5\ because\ -5 \ \textless \ 0\\|-11|=11\ because\ -11 \ \textless \ 0\\|-2.5|=2.5\ because\ -2.5 \ \textless \ 0$

$|-4b-8|+|-1-b^2|+2b^3\\\\subtitute\ the\ value\ of\ b=-2\ to\ the\ expression:\\\\|-4\cdot(-2)-8|+|-1-(-2)^2|+2\cdot(-2)^3\\\\=|8-8|+|-1-4|+2\cdot(-8)\\\\=|0|+|-5|-16\\\\=0+5-16\\\\=-11$

7 0

4 years ago

Read 2 more answers