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sineoko [7]
3 years ago
7

Find measures a, b, c, d, and e.

Mathematics
1 answer:
Alina [70]3 years ago
7 0
A and c would equal 70 degrees
And d would equal 110 degree
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The school library had a used book sale. paperbacks were $2 each and hardcover books were $3 each. there were 54 paperbacks and
ANEK [815]

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Total money made is $597, $489 from hardbacks and $108 from paperbacks.

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$3 x 163= $489

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total $= 3(163)+2(54)

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The distillation of raw data into useful information is known as ______. a. generalization b. data analysis c. data content d. e
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B. Data analysis

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7 0
3 years ago
Researchers observed the grouping behavior of deer in different regions.The following scatter plot shows data collected on the s
photoshop1234 [79]

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As the percent of woodland increases, the number of deer observed in a group decreases quickly at first and then more slowly.

Step-by-step explanation:

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7 0
3 years ago
Please anybody help me please this is so hard that not even I can't solve this I don't pay attention in class
Alla [95]

Answer:

m\angle B=54^{\circ}

m\angle BAD=36^{\circ}

m\angle CDA=90^{\circ}

BAC=72^{\circ}

Step-by-step explanation:

Given:

\overline{AB}\cong \overline{AC},

\overline{AD} bisects angle BAC

m\angle C=54^{\circ}

Triangle ABC is isosceles triangle, because \overline{AB}\cong \overline{AC}. Angles adjacent to the base of isosceles triangle ABC are congruent.

Hence,

m\angle C=m\angle B=54^{\circ}

The sum of the measures of all interior angles is 180°, so,

m\angle B+m\angle C+m\angle BAC=180^{\circ}\\ \\m\angle BAC=180^{\circ}-2\cdot 54^{\circ}=72^{\circ}

Since \overline{AD} bisects angle BAC, angles BAD and CAD are congruent by definition of angle bisector. So,

m\angle BAD=m\angle CAD=\dfrac{1}{2}m\angle BAC=\dfrac{1}{2}\cdot 72^{\circ}=36^{\circ}

AD ia angle bisector in isosceles triangle drawn to the base, so it is the height. Thus, AD and BC are perpendicular. So,

m\angle CDA=90^{\circ}

8 0
3 years ago
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