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dezoksy [38]
3 years ago
8

Can someone help me with this math homework please!

Mathematics
1 answer:
NemiM [27]3 years ago
4 0

Answer:

  • <u>f(x)< 0 over the intervals (- ∞, -2.7) and (-1,0.8).</u>

<u>Answer: B</u>

<u>-----------------------</u>

Hope it helps...

Have a great day!!

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I need help with equations with variables on both sides. The question is 5x-7=4x-1
Blizzard [7]

You can subtract  4x  from each side of the equation. 
Then you'll have the variable only on one side.

Before:                5x - 7 = 4x - 1

After:                     x - 7 =      - 1

Now it's a lot easier to solve. 

========================================

I just noticed that you're giving 10 points for this one.
That's a bunch, so I guess I owe you some more ...
I really ought to go ahead and finish the solution:

Original equation:                  5x - 7 = 4x - 1

Subtract  4x  from each side:   x - 7 =      - 1

Add  7  to each side:                x      =        6

(Once you subtracted  4x  from each side,
there really wasn't much more left to do.)

5 0
4 years ago
If the Greatest Common Factor of L and M is 6, write the expression for the Least Common Multiple of these numbers.
Serga [27]

Answer:

\frac{(L x M)}{6}

Step-by-step explanation:

The greatest common factor is the greatest number that will divide two values. We have two values L and M. Each has numbers which multiply together to give the number. The highest value or most in common they share is 6. This is the GCF.

The least common multiple is the smallest positive number which is a multiple of the two. This means both L and M divide into it evenly.

We know L x M is a multiple because L and M will be factors of it. But we don't know its the least.

As an example if L= 42 and M = 60, they have GCF 6. We can multiply them to find a multiple 42 x 60 = 2520 but we don't know this is the smallest or least multiple we can find. If we divide by the GCF, 2520/6=420. Interestingly, 42 x 10 =420 and 60 x 7 =420. This means 420 is the least common multiple.

We can multiply (L x M) and then divide by the GCF of L & M to find the least common multiple.

\frac{(L x M)}{6}

3 0
3 years ago
A hand tool manufacturer produces a product for which the variable cost is $5.35 per unit and the fixed costs are $16,000. The c
Natasha2012 [34]
I added 16.000 and 8.20 and 5.35 that equal 173.55 I think that’s the answer
7 0
3 years ago
The amount of daily time that teenagers spend on a brand A cell phone is normally distributed with a given mean of 2.5 hr and st
Katen [24]
First the 3.1 hr is one standard deviation away from the mean:
2.5 + 0.6 = 3.1 hr. then the one standard deviation away from the mean contains 68% of the total population. so the percent that is higher from 3.1 hr is
% higher 3.1 hr = ( 100 - 68) / 2
% higher 3.1 hr = 32 / 2
% higher 3.1 hr = 16 %
7 0
3 years ago
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Quadrilateral EFGH was dilated by a factor of 3. What is FG F'G'
Nikolay [14]
The coordinates would be multiplied by 3, as the scale factor is 3, and it is a dilation, so we know the size increases.
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4 years ago
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