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Zinaida [17]
3 years ago
12

Can someone do this thanks and quickly:)

Mathematics
1 answer:
MArishka [77]3 years ago
3 0

Answer:

This figure is a quadrilateral, and therefore the sum of the interior angles must be 360°.  Adding them up, we get 40° + 128° + x + 82° = 360°, or

168° + 82° + x = 360°, or  250° + x = 360.  Subtracting 250° from both sides results in 110°, which is the measure of x.

Step-by-step explanation:

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Please answer this question now
borishaifa [10]

Answer:

70 degrees

Step-by-step explanation:

Measure of arc ABC is 128 degrees, so measure of arc BC is 128-90 = 38 degrees.

Meausure of arc BCD is 102 + 38 = 140 degrees, so measure of angle A is 140/2 = 70 degrees

7 0
3 years ago
Read 2 more answers
Express 78 billion in scientific notation
ryzh [129]

Answer:

7.8 * 10^{10} is scientific notation of 78 billion

Step-by-step explanation:

For scientific notation , follow the following notation:

a * 10^{b} -------->(equation 1)

Let,  a^{'} = 78 billion

a^{'} = 78000000000

a^{'} = 78000000000.0

In standard form

a = 7.8000000000

or

a = 7.8

As decimal point move 10 places from right to left, therefore

b = 10

Put the value of 'a' and 'b' in (equation 1)

7.8 * 10^{10} is scientific notation of 78 billion

6 0
4 years ago
While testing a new vaccine, a lab technician noticed that the number of bacteria reduced by half every minute. How long does it
ANTONII [103]
As we know that 
x=x0*[1/2]n
putting the values 
375=3000*[1/2]n
375/3000=<span>[1/2]n
</span>1/8=<span>[1/2]n
simplify
[1/2]3=</span><span>[1/2]n
by cancelling them
so n=3
so it will take 3 minutes
hope it helps</span>
7 0
3 years ago
Wesley is raising monarch caterpillars for a school science project. Every day, he feeds 7 fresh milkweed leaves to each caterpi
kkurt [141]

Step-by-step explanation:

Let n be the number of caterpillars.

Since each catepillar eats 7 leaves,

Wesley have 7n number of leaves.

In this case 7n = 42, so n = 6.

6 0
3 years ago
Read 2 more answers
What factors do 16 and 24 have in common?
ycow [4]
Common factor of 16 and 24 is 8
5 0
3 years ago
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