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irina [24]
3 years ago
15

Typing 1,000 words in 15 minutes

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
7 0

In 15 minutes, he writes 1 000 words, and you can fit 15 minutes in 1 hour four times

1 000 x 4 = 4 000.

The write can write 4 000 words in an hour.

315

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Review:
alex41 [277]

Answer:

Step-by-step explanation:

Well 6 to the second power is when you multiply 6 x 6 = 36

And ab= -320

7 0
3 years ago
The model represents x2 – 9x + 14. An algebra tile configuration showing only the Product spot. 24 tiles are in the Product spot
klio [65]

I didn't get all the part with the tiles, but here's the general answer:

given a polynomial

p(x)=ax^2+bx+c

we have that x-k is a factor of p(x) if and only if k is a root of p(x), i.e. if

p(k)=ak^2+bk+c=0

So, given the polynomial

p(x)=x^2-9x+14

We can check if x-9 is a factor by evaluating p(9):

p(9)=81-81+14=14\neq 0

So, x-9 is not a factor.

Similarly, we can evaluate p(2),\ p(-5),\ p(-7) to check if x-2,\ x+5,\ x+7 are factors:

p(2)=4-18+14=0,\quad p(-5)=25+45+14=84\neq 0,\quad p(-7)=49+63+14=126 \neq 0

So, only x-2 is a factor of x^2-9x+14

4 0
3 years ago
Read 2 more answers
Todd has $124 in his checking account. He wrote two checks for $13.96 and $21.67 and transferred $14 into his checking from
dangina [55]

Answer: $74.37

Step-by-step explanation:

7 0
2 years ago
Nancy left a bin outside in her garden to collect rainwater. She notices that 1/2 gallon of water fills 2/3 of the bun. Write an
Eva8 [605]

Answer:

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Step-by-step explanation:

Let the capacity of the bin is x gallons.

1/2 gallon is 2/3 of x

<u>Convert this into equation and solve for x:</u>

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3/4 gallons of water will fill the bin

6 0
2 years ago
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What is the value of x?<br> 6-2/3(x+5)=4x
gogolik [260]

It was 14

3

x + 8

3

= 0

Factorization:

−2

3

(7x − 4) = 0

Solutions:

x = 8

14

≈ 0.571429

7 0
2 years ago
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