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2 years ago

5

The pieces of a puzzle are placed half by Giulio, one fifth by Marco and Fabrizio in equal parts, while Michele arranges on the

90 pieces of the frame. how many pieces does Marco place?

1 answer:

denis23 [38]2 years ago

3 0

Answer:

Not exactly sure but I think it should be 30 pieces

Step-by-step explanation:

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hjlf

Answer:

X = $\begin{bmatrix}5 &-1 \\ -5 &4 \\2& -9\end{bmatrix}$

Step-by-step explanation:

given,

A + X = Q

X = A - Q

A = $\begin{bmatrix}3 &2 \\ -1 &5 \\3& -4\end{bmatrix}$

Q = $\begin{bmatrix}-2 &3\\ 4 &1 \\ 1&-5\end{bmatrix}$

now

X = $\begin{bmatrix}3 &2 \\ -1 &5 \\3& -4\end{bmatrix}-\begin{bmatrix}-2 &3\\ 4 &1 \\ 1&-5\end{bmatrix}$

X = $\begin{bmatrix}3-(-2) &2-3 \\ -1-4 &5-1 \\3-1& -4-5\end{bmatrix}$

X = $\begin{bmatrix}5 &-1 \\ -5 &4 \\2& -9\end{bmatrix}$

hence, the required matrix is given above

7 0

3 years ago

Definition of a random sample

Gnesinka [82]

Answer:

Step-by-step explanation:

In statistics, a simple random sample is a subset of individuals (a sample) chosen from a larger set (a population). Each individual is chosen randomly and entirely by chance, such that each individual has the same probability of being chosen at any stage during the sampling process, and each subset of k individuals has the same probability of being chosen for the sample as any other subset of k.

7 0

3 years ago

Read 2 more answers

Point R(4,-5) is reflected across the y-axis

erma4kov [3.2K]

too hard Step-by-step explanation:

8 0

3 years ago

What is the value of x in the rhombus below?

Tcecarenko [31]

Answer:

3l u7eyehueueuhe3hyhehuhueh3uug3us7eheh

6 0

3 years ago

Harold spent 3/4 hour milked 3 groups of cows. If he spent an equal amount of time on each group of cows, what fraction of an ho

torisob [31]

1/4 hour because since it took him 3/4 hr to milk 3 groups, it is reasonable to divide 3/4 by 3. So in 1/4 hour.

3 0

4 years ago