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3 years ago

If u draw a place value chart only with 1 and 10 with 24 and 3 what would be in the chart???????

Mathematics

1 answer:

Stells [14]3 years ago

5 0

It would be 38 dirt the dirt

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A ball is thrown upward from a height of 15 ft with an initial velocity of 5 ft/s. Use the equation h=-16t^2+5t+15 to answer the

Fiesta28 [93]

Answer:

1) 1.1 seconds

2) 13.5 feet

$\rightarrow \sf -16t^2 + 5t + 15 = 0$

<u>Apply quadratic formula</u>:

$\rightarrow \sf t= \dfrac{-5\pm \sqrt{5^2-4\left(-16\right)\cdot \:15}}{2\left(-16\right)}$

<u>Simplify following</u>

$\rightarrow \sf t=-\dfrac{-5+\sqrt{985}}{32},\:t=\dfrac{5+\sqrt{985}}{32}$

In decimal form:

$\rightarrow \sf t=-0.825 ,\:t=1.137$

Conclusion:

As time is be only positive: t = 1.1 seconds

$\rightarrow \sf h=-16t^2 + 5t + 15$

<u>insert t = 0.5</u>

$\rightarrow \sf h=-16(0.5)^2 + 5(0.5) + 15$

<u>simplify</u>

$\rightarrow \sf h=13.5$

3 0

2 years ago

Steve is installing a new water fountain in Mountain View Middle School. He sets the water to flow according to the equation g =

Zinaida [17]

Answer:

2.2 gallons per minute

Step-by-step explanation:

The rate of change is 2.2 gallons of water every minute

6 0

3 years ago

Can someone pls help me answer this :/

eimsori [14]

Answer:

y = - $\frac{3}{2}$ x + 6

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y- intercept )

Calculate m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (0, 6) and (x₂, y₂ ) = (4, 0) ← 2 points on the line

m = $\frac{0-6}{4-0}$ = $\frac{-6}{4}$ = - $\frac{3}{2}$

Since the line crosses the y- axis at (0, 6) ⇒ b = 6

y = - $\frac{3}{2}$ x + 6 ← equation of line

5 0

3 years ago

Line AB has endpoints A(-4,5) and B(3,5). What is the x-coordinate of a point C such that B is the midpoint of line AC

Ipatiy [6.2K]

Easy peasy

the midpoint between $(x_1,y_1)$ and $(x_2,y_2)$ is
$(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$
just average them

so given that (3,5) is the midpoint of (-4,5) and (x,y)
$(\frac{-4+x}{2},\frac{5+y}{2})=(3,5)$
so by logic
$\frac{-4+x}{2}=3$ and $\frac{5+y}{2}=5$
times both sides by 2 for everybody
-4+x=6 and 5+y=10
add 4 to both sides for left one and minus 5 from both sides for right
x=10 and y=5

the coordinate of point C is (10,5)
the x coordinate is 10

7 0

4 years ago

Can someone help me with this it’s urgent what’s the answer or property of this problem C?

ELEN [110]

Answer:

yes they both equal 2 1/2

4 0

3 years ago