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4 years ago

E = [1 2] A = [3 0] [2 -1]

Mathematics

1 answer:

lyudmila [28]4 years ago

5 0

You know the factor of 2 will make the result have even numbers. Thus C and D are immediately eliminated. To tell whether the answer is A or B, you only need to find the second number.
.. 2*(1*0 +2*(-1)) = -4

The appropriate selection is ...

B. [14 -4]

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Uw=2 and ux=y. write an expression for wx

Snowcat [4.5K]

Uw=2
w=2/U

ux=y
x=y/u

wx=(2/U)(y/u)
wx=(2y)/(Uu)

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3 years ago

If MN=NQ and MQ=QR=RP, calculate for x

Akimi4 [234]

Answer:

C. 18°

Step-by-step explanation:

<em>Refer to attached diagram</em>

<h3>Given </h3>

MN = NQ
MQ = QR = RP
NMR = 3x
QMR = x

Value of x

<h3>Solution</h3>

MN = NQ ⇒ ∠MRN = ∠QMN = 3x+x = 4x
MQ = QR ⇒ ∠MRQ = ∠QMR = x

<u>RQP is exterior angle of ΔMQR ⇒ </u>

∠RQP = x + x = 2x

∠RPQ = ∠RQP = 2x

<u>∠QRN is exterior angle of ΔQRP ⇒ </u>

∠QRN = 2x + 2x = 4x

∠MRN = ∠QRN - ∠QRM = 4x - x = 3x

NR = MQ

∠NQR = ∠QRN = 4x

<u>We now have a straight angle MQP:</u>

∠MQP = ∠MQN + ∠RQN + ∠RQP
180° = 4x + 4x + 2x
10x = 180°
x = 18°

Correct choice is C

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3 years ago

When solving proportions we set the cross products equal and then we do what

tangare [24]

Multiply across for example 3/20= x/100

3*100=300
x*20=20x

then divide by 20 on each side
300/20=15

15=x

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3 years ago

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SSSSS [86.1K]

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4 years ago

If the point M(2,2) is reflected over the y axis, what will be the coordinates of the resulting point, M’?

Levart [38]

Answer:

-8,-5

Step-by-step explanation:

8,5 because the "m" is 5 squares down and 8 squares to the right.

4 0

3 years ago