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kari74 [83]
4 years ago
13

ABCD is a quadrilateral. Work out the length of BC.

Mathematics
1 answer:
Pani-rosa [81]4 years ago
8 1
The answer is B.C. =8.1cm
The working is on the picture

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7.
IRINA_888 [86]

Answer: C) 14

Step-by-step explanation: 65 - 9 = 56. You would then do 56/4 and you get 14.

Hope this helped

5 0
3 years ago
Read 2 more answers
What is the formula to find the circumference of a circle using the radius?
Greeley [361]

Answer:

c = 2 *pie* r

Step-by-step explanation:

8 0
3 years ago
During halftime of a basketball ​game, a sling shot launches​ T-shirts at the crowd. A​ T-shirt is launched from a height of 4 f
Sonbull [250]

Answer:

(a) The time the T-shirt takes to maximum height is 2 seconds

(b) The maximum height is 68 ft

(c) The range of the function that models the height of the T-shirt over time given above is 4 + 64\cdot t - 16 \cdot  t^{2}

Step-by-step explanation:

Here, we note that the general equation representing the height of the T-shirt as a function of time is

h = h_1 + u\cdot t - \frac{1}{2} \cdot g  \cdot  t^{2}

Where:

h = Height reached by T-shirt

t = Time of flight

u = Initial velocity = 64 ft/s

g = Acceleration due to gravity (negative because upward against gravity) = 32 ft/s²

h₁ = Initial height of T-shirt = 4 ft

(a) The maximum height can be found from the time to maximum height given as

v = u - gt

Where:

u = Initial velocity = 64 ft/s

v = Final upward velocity at maximum height = 0 m/s

g = 32 ft/s²

Therefore,

0 = 64 - 32·t

32·t = 64 and

t = 64/32 = 2 seconds

(b) Therefore, maximum height is then

h = 4 + 64\times 2 - \frac{1}{2} \times 32  \times  2^{2}

∴ h = 68 ft

The T-shirt is then caught 41 ft above the court on its way down

(c) The range of the function that models the height of the T-shirt over time given above is derived as

h = h_1 + u\cdot t - \frac{1}{2} \cdot g  \cdot  t^{2}

With u = 64 ft/s

g = 32 ft/s² and

h₁ = 4 ft

The equation becomes

h =4 + 64\cdot t - \frac{1}{2} \times 32  \cdot  t^{2} = 4 + 64\cdot t - 16 \cdot  t^{2}.

6 0
3 years ago
2 |n + 10|= -2<br><br> solve the equation
MissTica
2n + 20 = -2

20 + 2 = -2n

22 = -2n

22/2 = n

11 = n
3 0
3 years ago
A rectangular garden has a total area of 48 square yards.Draw and label2 possiblerectangular garden with different side lengths
erastovalidia [21]

Answer:

see diagram

Step-by-step explanation:

A rectangle has the area that can be calculated using formula

A=\text{length}\cdot \text{width}.

1. Consider rectangle with length of 8 yards and width of 6 yard. Then

A=6\cdot 8=48\ yd^2.

2. Consider rectangle with length of 12 yards and width of 4 yard. Then

A=12\cdot 4=48\ yd^2.

These two rectangles are attached.

4 0
3 years ago
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