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lina2011 [118]
2 years ago
11

HELP PLEASE Will give brainliest

Mathematics
1 answer:
Alenkasestr [34]2 years ago
6 0

Answer:

=7x^2+8x-2

Step-by-step explanation:

So, on Monday, Tuesday, and Wednesday, he mowed:

(4x^2+3x-4),(5x-8),(3x^2+10)

yards, respectively.

To determine how many yards he mowed in the three days, simply add the three expressions. Thus:

(4x^2+3x-4)+(5x-8)+(3x^2+10)

Combine like terms:

=(4x^2+3x^2)+(3x+5x)+(-4-8+10)

Add or subtract:

=7x^2+8x-2

And it cannot be simplified further :)

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inysia [295]
7+3x-12x=3x+1
We will first make all the numbers which have x in go to the left.
So 7+3x-12x-3x, we make the 3x negative since to make it move it needs to change.
Then we will make all the sevens go to the right, so 3x-12x-3x=1-7.
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3 years ago
What the same as 1.4
liubo4ka [24]

Answer:

\frac{7}{5}

Step-by-step explanation:

You can make 1.4 as a fraction, and it will be the same but in a different form.

So, to make a decimal by a fraction, you make 1.4 into a whole number. 1.4 will be 14.

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So, when you simplify \frac{14}{10}, which is \frac{7}{5}

3 0
3 years ago
A book sold 33,200 copies in its first month. Suppose this represents 7.4% of the number of copies sold to date. How many copies
Marta_Voda [28]

Answer: 448648

Step-by-step explanation:

33,200 copies represent 7.4% of the total amount

-----------------------------------------------------

#1  33,200 ÷ 7.4%

- this is because how we get 33,200 by calculation is use the total amount and times 7.4% to get 33,200. So we are just working backwards. Since it was times before, then we divide after.

 33,200÷7.4%

=33,200÷0.074

≈448648 (you can't round up when the real amount is less the exact amount)

6 0
3 years ago
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A card is drawn from a standard deck of cards, not replaced, then another is drawn. What is the probability that both cards are
defon
1/31 chance of it being hearts

7 0
3 years ago
Please help. If this isn't done by today i'm grounded :(
DedPeter [7]

Answer:

B. temporary

Step-by-step explanation:

The last sentence says that the alignment of atoms does not last long.

4 0
2 years ago
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