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3 years ago

Need help ASAP!!

Mathematics

2 answers:

barxatty [35]3 years ago

4 0

54 square feet
9x6 = 54
B x h = a
Base x height = area

Andrews [41]3 years ago

3 0

27 squared feet.
Hope this helped

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A ball thrown in the air vertically from ground level with initial velocity 37 m/s has height h(t) = 37t − 4.9t2 m at time t (in

Nesterboy [21]

Answer:

46.57

Step-by-step explanation:

Given that:

h(t) = 37t - 4.9t²

When the ball reaches the ground, then the height is zero;

So, we equate h(t) to zero and solve for t

37t - 4.9t² = 0

t = 0, 7.55

Let the Initial time be a = t = 0

The time the ball reaches the ground be b = 7.55

So, the average height can now be calculated as:

Average height = $\frac{1}{b-a}\int\limits^b_a {h(t)} \, dt$

= $\frac{1}{7.55-0}\int\limits^{7.55}_0 (37t-4.9^2) dt$

= $\frac{1}{7.55-0}\ (\frac{37(7.55)^2}{2} - \frac {4.9(7.55)^3}{3})$

= $\frac{1}{7.55-0}\ (351.6104208)$

= 46.57091665

≅ 46.57 to (2 decimal places)

6 0

3 years ago

Quick algebra 1 question for 50 points!

saul85 [17]

Answer:

b. -x + y = 0

Step-by-step explanation:

Direct variation:

Direct variation means "y varies directly as x”:

$y \propto x \implies y=kx$

where k is the (non-zero) constant of variation.

To determine which of the given equations represents a direct variation, isolate y for each and compare with the direct variation equation.

Equation a

$y=\dfrac{4}{3}x-2$

This is not a direct variation equation as there is an addition of -2.

Equation b

$-x+y=0$

$\implies y=x$

This is a direct variation equation where the constant of variation is 1.

Equation c

$xy=8$

$\implies y=\dfrac{8}{x}$

This is not a direct variation equation as y is inversely proportional to x.

Equation d

$y=14$

This equation does not include the variable x, and so is therefore not a direct variation equation.

3 0

2 years ago

Read 2 more answers

"Suppose that Novak Djokovic and Roger Federer are playing a tennis match in which the first player to win three sets wins the m

o-na [289]

Answer: it could end in 20 different ways.

Step-by-step explanation:

This match could be

3x0 D or F

3x1 D or F

3x2 D or F

For 3x0

We have 2 options: DDD or FFF

2.P₁ = 2.1 = 2

For 3x1

We have 6 options

DFDD FDFF

DDFD FFDF

FDDD DFFF

2.3.1 = 6

For 3x2

we have 12 options:

DFDFD FDFDF

DDFFD FFDDF

DFFDD FDDFF

FFDDD DDFFF

FDFDD DFDFF

FDDFD DFFDF

2.3.2 = 12

In total we could have 20 outcomes.

5 0

4 years ago

(06.04 MC)

ratelena [41]

Answer:

54 sq units

Step-by-step explanation:

The triangle at the top (FAB) has a base of 10 and a height of 3. Area of triangle is 1/2bh so 1/2(10 * 3) = 1/2 * 30 = 15 sq units

If you cut off the triangle you have a trapezoid, EBCD. A trapezoid is (b1 + b2)/2 * h, so (6 + 7)/2 * 6 = 13/2 * 6 = 6.5 * 6 = 39 sq units

Add them together: 15 + 39 = 54 sq units

7 0

3 years ago

How do you find the answer ?

jeka94

I think first you must Unification of denominatorsit will 60 for (3,4,5) so you will get
2\5 = 24\60
1\4 = 15\60
1\3 = 20 \60
then you divide each one apart then multiply by total number (3,800)
so :
24\60 * 3800 = 1520
15\60 * 3800 = 950
20 \60 * 3800 = 1267
_____
note : when you will gather results you will get Approximate number to 3800

i hope i helped

5 0

4 years ago