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jek_recluse [69]
3 years ago
7

Multiply the following polynomials. (3x2-5x-4)(2x-7)

Mathematics
1 answer:
Gelneren [198K]3 years ago
7 0
The 1st 1 I think is 26 and the 2nd one should be -14
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If the base of a Pyramid has an area of 144sq ft And if the slant higher of the pyramid is 10ft what would be the higher of the
pogonyaev

Answer:

the height of the pyramid is 8 ft

Step-by-step explanation:

Considering the base of the pyramid to be square whose area is 144 sq ft

This means the side of the base would be √144 = 12 ft.

Now, if you will imagine a pyramid we can easily observe that

Height(H) , slant height( L=10 ft) and half of the side length( 6ft) make a right angle triangle. We can easily calculate height from Pythagoras theorem as

10^2 = H^2 +6^2

⇒ H^2 = 10^2-6^2 = 100-36 = 64

⇒ H = 8 ft

Therefore, the height of the pyramid is 8 ft

3 0
2 years ago
A flying disc was originally marked at 5$ and has been sold at $3.50. What was the percent of discount?
Otrada [13]

Answer:

30%

Step-by-step explanation:

Percentage discount

=  \frac{discount}{original \: price}  \times 100\% \\  =  \frac{5 - 3.50}{5}  \times 100\% \\  = 30\%

☆ Discount= original price -selling price

7 0
3 years ago
Giving brainiest with legit answer is my answers correct?
muminat
Yes, this is all correct!
4 0
3 years ago
The slope of a line is?
valkas [14]

Answer:

The correct answer is d) the ratio of the change in y to the change in x along the line.

We can tell this by looking at the slope formula.

m (slope) = (y2 - y1)/(x2 - x1)

6 0
3 years ago
A rectangular pyramid fits exactly on top of a rectangular prism. The prism has a length of 15 cm, a width of 5 cm, and a height
rodikova [14]

Answer:

D: 850 cm^3

Step-by-step explanation:

You sum the volumes.

Prism is 15*5*7 = 525

Pyramid is 15*5*13/3  = 325

Sum is 850

5 0
3 years ago
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