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Anni [7]
3 years ago
15

WILL GET A BRAINLIEST...!

Mathematics
1 answer:
Orlov [11]3 years ago
4 0
X divided by 4, it's ur expression
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2 times the difference of one-third of a number and 3
Eddi Din [679]

Answer:2(x/3-3) or 2(3-x/3)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is 9/4 in decimal form
postnew [5]

Answer:

<h2>2.25</h2>

Explanation:

2.25 is a decimal and 225/100 or 225% is the percentage for 9/4.

<em>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</em>

<em>Hope I helped!!!</em>

<em>GL :)</em>

8 0
3 years ago
If n ||m, find the value of x and the value of y.
babunello [35]

Answer: Option C

y=5, x=10

Step-by-step explanation:

If the lines m and n are parallel then the large triangle and the small triangle are similar triangles, because they have equal angles.

By definition for similar triangles it is satisfied that if they have sides of length a, b, c and a ', b' and c 'then:

\frac{a}{a'}=\frac{b}{b'} =\frac{c}{c'}

In this case

a = 12\\a' = 4\\c = 15\\c' = y

So:

\frac{12}{4}=\frac{15}{y}

3=\frac{15}{y}

y=\frac{15}{3}

y=5

Therefore

if x+y=15 and y=5 then x =10

Finally

y=5, x=10

5 0
3 years ago
Determine if the matrix below is invertible. Use as few calculations as possible. Justify your answer.
Marysya12 [62]

Answer:

This shows 3 pivot position matrixes.

Step-by-step explanation:

The given matrix is:  

\left[\begin{array}{ccc}1&-2&-5\\0&4&3\\-3&3&0\end{array}\right]

The option D is correct for this matrix.

The matrix is invertible and the given matrix has 3 pivot positions.

The matrix is invertible if its determinant is nonzero.

Multiply the 3rd row by 1/3.we get:

\left[\begin{array}{ccc}1&-2&-5\\0&4&3\\-1&1&0\end{array}\right]

Now, add the first row with third row:

\left[\begin{array}{ccc}0&-1&-5\\0&4&3\\-1&1&0\end{array}\right]

Replace third row by first row:

\left[\begin{array}{ccc}-1&1&0\\0&4&3\\0&-1&-5\end{array}\right]

This shows 3 pivot position matrixes.

Hence, a matrix is invertible and has 3 pivot positions.

7 0
3 years ago
The high temperatures in Montana are recorded for a week. High Temperature Sunday 46°FMonday52°FTuesday51°FWednesday54°FThursday
fomenos
Hey there!

To find the average of numbers, add the numbers up and divide by the amount of numbers. 46+52+54+51+49+61+51=364. Then divide by 7 because there’s 7 days. 364/7=52. The average, or mean, temperature for the week was 52 degrees.

I hope this helps!
3 0
3 years ago
Read 2 more answers
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