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Effectus [21]
2 years ago
7

Perry set450 chairs up perry put 20 chairs in a row he already set up15 rows howmany more chairs he need to set up

Mathematics
1 answer:
vredina [299]2 years ago
5 0
450 chairs total
20 chairs per row
15 rows already set up
15×20=300
300 chairs already up
450-300=150
150 chairs left to set up
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Plz help me find answer. what are the coordinates of slope when y= x/1–x² when dy/dx=1​
vova2212 [387]

Step-by-step explanation:

dy/dx

= d/dx [x / (1 - x²)]

= [(1 - x²)(1) - (x)(-2x)] / (1 - x²)²

= (1 + x²) / (1 - x²)².

When dy/dx = 1, (1 + x²) / (1 - x²)² = 1.

=> 1 + x² = 1 - x²

=> 2x² = 0, x = 0.

Also when x = 0, y = (0) / [1 - (0)²] = 0.

Hence the coodinates is (0, 0).

8 0
2 years ago
Specific gravity will tell you a fraction of how much
Nikolay [14]

The value 0.92 indicates the relative density of the ice.

Data;

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<h3>Specific Gravity</h3>

Specific gravity of a substance is defined as the relative density of substance. This can be further said to be the ratio between the density of a substance to the density of the reference substance.

mathematically;

relative density = \frac{density of substance}{density of reference}

The value 0.92 indicates the relative density of the ice.

Learn more on specific gravity here;

brainly.com/question/14932758

3 0
1 year ago
If u write 70000 in scientific notation the coefficient will be 70<br><br> true of false
aliina [53]

Answer:

False

Step-by-step explanation:

Scientific notation must have a number from 1-10

The answer would be 7*10^4

8 0
2 years ago
Johnny puts his quarter in the vending machine and gets a piece of candy.
Alex73 [517]

Answer:

Great job Johnny now you're down 25 cents.

Step-by-step explanation:

4 0
3 years ago
suppose you lean out a window of a tall building and use a sling to launch a stone straight up. the stone starts with a velocity
Hunter-Best [27]

Answer:

y= 69x + 356

Step-by-step explanation:

y= 69x + 356

It goes 69 feet per second hence the 69x and it starts 356 feet in the air

4 0
3 years ago
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