2 years ago

Evaluate the expression y2 when y=2.5 .

Mathematics

1 answer:

kkurt [141]2 years ago

5 0

Answer:

5 but if it's supposed to be squared it's 6.25

Step-by-step explanation:

2.5*2=5

if supposed to be squared then

2.5*2.5=

6.25

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What is the difference of the matrices shown below?

Kaylis [27]

Answer:

Option A is correct.

Step-by-step explanation:

We need to find the difference of two matrices.

The matrices are:

$\left[\begin{array}{cc}-4&8\\3&12\end{array}\right] - \left[\begin{array}{cc}2&1\\-14&15\end{array}\right]$

We will subtract each row entry of Matrix 1 from the corresponding row entry of Matrix 2.

$\left[\begin{array}{cc}-4-2&8-1\\3+14&12-15\end{array}\right]\\\left[\begin{array}{cc}-6&7\\17&-3\end{array}\right]$

So, We get the answer

$\left[\begin{array}{cc}-6&7\\17&-3\end{array}\right]$

which matches Option A.

So, Option A is correct.

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3 years ago

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4 years ago

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Mamont248 [21]

Answer:

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3 years ago

Triangle ABE is similar to triangle ACD. Find y.

balu736 [363]

ΔABE is similar to ΔACD

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<u>Solve y:</u>

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