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Tpy6a [65]
3 years ago
9

How many dogs were household pets in the U.S in 2012, in scientific notation

Mathematics
1 answer:
Irina18 [472]3 years ago
6 0

Answer:

A

Step-by-step explanation:

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AB and DE are chords that intersect at point F inside circle C as shown. If the measure of arc EA= 50 degrees and the measure of
defon

Answer:

Part 1) m\angle AFE=55^o

Part 2) m\angle EFB=125^o

Step-by-step explanation:

Part 1) what is the measure of angle AFE

we know that

The measure of the interior angle is the semisum of the arches that comprise it and its opposite.

<u>Note:</u> In this problem the correct measure of arc EA is 40 degrees (see the picture)

so

m\angle AFE=\frac{1}{2}(arc\ EA+arc\ DB)

substitute the given values

m\angle AFE=\frac{1}{2}(40^o+70^o)=55^o

Part 2) what is the measure of angle  EFB?

we know that

m\angle AFE+m\angle EFB=180^o ---> by supplementary angles (form a linear pair)

so

substitute the given value

55^o+m\angle EFB=180^o

m\angle EFB=180^o-55^o=125^o

8 0
3 years ago
A patient receives 150 cc of medication in an IV drip over 4 hours. What is the rate per hour of this dose
geniusboy [140]

150 cc per 4 hours divide by 4 equals 37.5 cc per hour
3 0
3 years ago
Brownies sell for $40 per batch and a batch of cupcakes sell for $60.
vazorg [7]

Answer: what do you have to do ??

7 0
2 years ago
Solve the system by substitution. <br><br> y = 2x<br> 3x + 2y = 21
7nadin3 [17]
Y=2x
3x+2y=21
3x+2(2x)=21
3x+4x=21
7x=21
x=3
y=2(3)
y=6
8 0
3 years ago
By selling two tables for Rs. 1200 each, a man gains 10% on one and loses 10% on the other. Find his gain or loss per cent in th
Vsevolod [243]

Answer:

0%

Step-by-step explanation:

10% + -10% = 0%, so the percent gain and loss is 0% (because both tables cost the same).

6 0
3 years ago
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