3 years ago

What is 4 3/4 + -5/8

Mathematics

1 answer:

Alona [7]3 years ago

4 0

I think is 12 1/7 I'm not sure it's correct but I think it is

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The cost for n teachers to attend the technology conference is 3n+5 dollars. What is the cost for 7 teachers to attend

Veronika [31]

If it costs 3n+5, you have to plug 7 in for n and solve. 3(7)+5=26 so $26

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3 years ago

What is 12,760,000 in scientific notation

nalin [4]

Answer:

12,760,000 in scientific notation

$1.2760000 \times {10}^{7}$

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3 years ago

four percent of newspaper readers wrote a letter to the editor last week. if there were 50 letters received by the editor last w

Alina [70]

Answer:

there are 1250 readers

Step-by-step explanation:

r = readers

4 percent of readers sent letter = 50 recieved letters

r * 4 percent = 50

r * .04 =50

divide by .04 on each side

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3 years ago

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Please help!! Find the domain and range of the following function ƒ(x) = 5|x - 2| + 4

blagie [28]

Answer:

There are no restrictions on x, so the domain is (-∞,∞)

When x = 2, 5|x - 2| = 0, so the range is [4,∞)

Step-by-step explanation:

6 0

4 years ago

Find S20 for the geometric series 4 + 12 + 36 + 108 + … 5,034,043,187 5,123,498,245` 6,973,568,800 7,321,089,348

yan [13]

A_{1} = 4
a_{2} = 12

a_{2} = a_{1}*q
12 = 4q
q = 3

S20 = a_{1}* $\frac{(q^{20}-1)}{(q-1)}$

S20 = 4* $\frac{(3^{20}-1)}{3-1}$

S20 = 4* $\frac{3486784401-1}{2}$

S20 = 2*3486784400

S20 = 6,973,568,800

8 0

3 years ago