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2 years ago

In the figure, angle D measures 127° and angle A measures 75°.

Mathematics

2 answers:

suter [353]2 years ago

8 0

Answer:

Step-by-step explanation:

∠C + ∠D = 180 {Linear pair}

∠C + 127 = 180

∠C = 180 - 127

In ΔABC ,

∠A + ∠B + ∠C = 180 {angle sum property of triangle}

∠B = 180 - ∠A - ∠C

b = 180 - 75 - (180 - 127)

almond37 [142]2 years ago

4 0

Angles C and D are supplementary, or they add up to 180.

b = 180 - 75 - (180 - 127)

Hope this helps!

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If point O represents the origin, PQ = 12 units, and P'Q' = 3 units, find the scale factor. (Note: point O represents the origin

Nataliya [291]

Answer:

1/4

Step-by-step explanation:

To transform PQR into P'Q'R, dilate the preimage by 1/4, or shrink it by a scale factor of 4 because 3/12 = 1/4

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1 year ago

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Enter the values for m, n, and p that complete the difference:

inessss [21]

Answer:

p = 2

n = 14

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Step-by-step explanation:

In order to be able combine (either add or subtract) rational expressions we need to write them with a common (similar) denominator. For that reason we first find the Least Common Denominator of both fractions, that way understanding how to express the two fractions using equivalent fractions with like denominator that can be combined.

We see that the denominator of the first fraction contains the factor "x", therefore "x" has to be a factor of that least common denominator.

We also see that the second fraction contains "2" as a factor, therefore 2 has to be a factor as well for our Least Common Denominator (LCD)

So the LCD we need is the product: 2*x which we write as 2x.

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Next we do the same with the second fraction, this time multiplying top and bottom by the factor "x":

$\frac{3}{2} =\frac{3x}{2x}$

Now that both fractions are written showing the same denominator , we can combine them as indicated:

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This expression gives as then the values for the requested coefficients.

p = 2

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3 years ago

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Serggg [28]

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F(E) = Amount of favorable occurrences

Total number of trials (T(E))

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If he tosses the pair of coins simultaneously, then the number of samples can be HH, HT, TH, TT.

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7 months ago

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pav-90 [236]

Answer:

b. They can both be 90 degree angles

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3 years ago

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