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slava [35]
4 years ago
8

Simplify 4x(3x-7)-19x^2)-19x^2

Mathematics
1 answer:
Sedbober [7]4 years ago
3 0
The answer for this problem is
: -7(x^2+4)
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Help?
Kazeer [188]
Remember, h(x) = y and x ...well, x is x...lol

B. h(x) = |x|....subbing in (-1,1)
     y = |x|
     1 = |-1|...absolute values are positive, even when they say negative
     1 = 1 (correct)
8 0
4 years ago
Manny buys a new grill that costs $375. The grill is discounted 22% and sales tax is 6.5%. How much does Manny pay for the grill
Svetllana [295]

Answer:

$310.05

Step-by-step explanation:

Method 1: Find the amount of 22% discount and subtract from original price, and find the amount of 6% tax and add to discounted price.

Original price: $375

Discount of 22%

22% of $375 = 0.22 × $375 = $82.50

Price after discount (but before tax): $375 - $82.50 = $292.50

Sales tax of 6%

6% of $292.50 = 0.06 × $292.50 = $17.55

Price after discount and tax: $292.50 + $17.55 = $310.05

Method 2: Add and subtract the discount percent and the tax percent first, then multiply.

Original price: $375

The discount is 22%.

The original price is 100%.

Subtract 22% from 100%: 100% - 22% = 78%

The discounted price is 78% of the original price.

Once you have the discounted price, tax is 6%.

The new discounted price is 100%. Add 6% to get 106%.

The price with tax is 106% of the discounted price.

106% of 78% of $375 = 1.06 × 0.78 × $375 = $310.05

Answer: $310.05

3 0
2 years ago
Danny writes this sentence:
aliina [53]
Lets first figure out what each of the words mean in symbols.

Three less: - 3 
a number: x (you can use any variable, but the question says to use x)
five times a number: 5x
is 12: = 12

Now we need to put the equation together.

5x - 3 = 12 is the sequence that Danny wrote.


5 0
3 years ago
Read 2 more answers
Solve by elimination: 7x-9y=29<br> 7x+2y=-15
Alexxandr [17]

Answer:

x = 125/7 , y = -11/3

Step-by-step explanation:

7x - 9y = 29

7x + 2y = - 15

- - + (subtracting)

__________

0 - 12y = 44

y = 44/-12

y = - 11/3

Putting y in first equation,

7x - 9 (-11/3) = 29,we get

x = 125/7 or 17.8

Hope it helps!

7 0
4 years ago
Which of the following is not a step when drawing an angle?
Aleks04 [339]

Answer:

shade the ray in a colour of your choice

8 0
3 years ago
Read 2 more answers
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