All categories

3 years ago

Round 32,518 to the nearest hundreds

1 answer:

6 0

If I’m correct this is supposed to be a decimal ( here we use the dot not the comma ) but if so then 32.52 a good way to remember is 5 or more let it sore (meaning round up) four or less let it rest (meaning it stays the same)

You might be interested in

Quickly plz 9th grade math

Rainbow [258]

Im pretty sure its -8.7

3 0

2 years ago

Read 2 more answers

A 25-foot ladder is placed against a vertical wall. Suppose the bottom of the ladder slides away from the wall at a constant ra

dsp73

Answer: The ladder is sliding down the wall at a rate of $5\dfrac{17}{50}\ ft/sec$

Step-by-step explanation:

Since we have given that

Length of ladder = 25 foot

Distance from the wall to the bottom of ladder = 15 feet

Let base be 'x'.

Let length of wall be 'y'.

So, by pythagorus theorem, we get that

$x^2+y^2=25^2\\\\15^2+y^2+625\\\\225+y^2=625\\\\y^2=625-225\\\\y^2=400\\\\y=\sqrt{400}\\\\y=20\ feet$

$\dfrac{dy}{dx}=-4\ ft/sec$

Now, the equation would be

$x^2+y^2=625\\$

Differentiating w.r.t x, we get that

$2x\dfrac{dx}{dt}+2y.\dfrac{dy}{dt}=0\\\\2\times 15\dfrac{dx}{dt}+2\times 20\times -4=0\\\\30\dfrac{dx}{dt}-160=0\\\\\dfrac{dx}{dt}=\dfrac{160}{30}=5.34\ ft/sec$

Hence, the ladder is sliding down the wall at a rate of $5\dfrac{17}{50}\ ft/sec$

8 0

3 years ago

If f(x)= 3x + 5/2 what is f(a+2)

Katen [24]

f(a + 2)= 3a + $\frac{17}{2}$

substitute x = a + 2 into f(x)

f(a + 2) = 3(a + 2) + $\frac{5}{2}$

= 3a + 6 + $\frac{5}{2}$ = 3a + $\frac{17}{2}$

7 0

3 years ago

(5x2 − 9x + 2) + (−3x2 + 2x + 4)

Triss [41]

Eliminate redundant parentheses
(5x 2 - 9x +2 ) + ( -3x2 + 2x 4)
5x 2-9x+2 -3x2+ 2x +4

Add the numbers
5x2 -9x +2 -3x2 +2x+4
5x2 -9x +6 -3x2 + 2x

Combine like terms
5x2 -9x +6 - 3x2 +2x
2x2 -9x +6 + 2x

Combine like terms
2x2 -9x +6 +2x
2x2 -7x +6

Solution
2x2 - 7x +6

3 0

3 years ago

The estimate of 1785 x 8

11Alexandr11 [23.1K]

The answer would be 14,280

8 0

3 years ago