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insens350 [35]
3 years ago
7

PLS HELP SHOW ALL YOUR WORKING OUT :D BRAINLIEST

Mathematics
1 answer:
vazorg [7]3 years ago
6 0

Answer:

18.1 cm

Step-by-step explanation:

Work out CD

\sqrt{16^{2}-7^{2}  } = 14.38749457 ⇒ Pythagoras Theorem

Use CD and AD to work out AC

\sqrt{14.38749457^{2}+11^{2}  } = 18.11077028 ⇒ Pythagoras Theorem

You might be interested in
(ab² + 13b - 4a) + (3ab² + a +7b)
Natalija [7]

Answer:

4ab² + 20b - 3a

Step-by-step explanation:

This question most likely asks us to simplify the expression, as factoring is not possible...

(ab² + 13b - 4a) + (3ab² + a + 7b),

ab² + 13b - 4a + 3ab² + a + 7b,

ab² + 3ab² + 13b + 7b - 4a + a,

Solution : 4ab² + 20b - 3a

4 0
3 years ago
Jackson purchased a pack of game cards that was on sale for 22% off. The sales tax in his county is 6%. Let y represent the orig
Ymorist [56]

Answer:

Final cost = 0.9328y

Step-by-step explanation:

Assume,

Original price = y

Given:

Discount = 22%

Sales tax = 6%

Computation:

Sales tax will be added on sale value

So,

Sales price = y[100%-22%]

Sales price = 0.88y

Price after sales tax :

Final cost = 0.88y[100% + 6%]

Final cost = 0.88y[106%]

Final cost = 0.9328y

8 0
3 years ago
What is the slope formula of (4,2) and (7, 6.5)
Lady_Fox [76]

Suppose the given coordinates are represented as,

\begin{gathered} (x_1,y_1)=(4,2) \\ (x_2,y_2)=(7,6.5) \end{gathered}

Then, the formula for slope can be expressed as,

\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\ m=\frac{6.5-2}{7-4} \end{gathered}

Solving it,

m=\frac{4.5}{3}=1.5

The slope is 1.5.

The formula of (10, 8) anjd (-5,8) is

m=\frac{8-8}{-5-10}

3 0
2 years ago
A soccer ball made of leather 1/81/8 in thick has an inner diameter of 8.58.5 in . Use the formula V=(4/3)πr3V=(4/3)πr3 to calcu
Sphinxa [80]
1/8 inch thick
inner diameter of 8.5

volume shell=volume total-volume shell


1/8=0.125

diameter/2=radius
radius inner=8.5/2=4.25
radiustotal=inner+outer=4.25+0.125=4.375


so

Vouter-Vinner=(4/3)pi4.375³-(4/3)pi4.25³
Vshell=(4/3)(pi)(4.375³-4.25)
Vshell=(4/3)(pi)(83.740234375-76.765625)
Vshell=(4/3)(pi)(6.974609375)
Vshell=9.299479166666666666666pi cubic inches
Vshell≈16.433536180619 cubic inches
6 0
3 years ago
Read 2 more answers
I really need help pls help me
bearhunter [10]
Num. 4 no because 5t2 doesn't equal 10 …or equals7
4 0
3 years ago
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