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andrew-mc [135]
3 years ago
5

Evaluate 12÷3·(-3) + |-8| -20 -4 20/3

Mathematics
1 answer:
olasank [31]3 years ago
6 0

Answer:

-4

Step-by-step explanation:

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Question 7 of 12. Step 1 of 1
Ostrovityanka [42]

Answer:

97

Step-by-step explanation:

Sorry for messy working out

5 0
4 years ago
How do I solve this please? Can SOMEONE please help me this and the ones Iposted on my page.
vagabundo [1.1K]

Answer: \dfrac{15}{64}

Step-by-step explanation:

Given

Inside radius of figure r_1=\frac{14}{2}=7\ ft

Outside radius of figure r_2=\frac{16}{2}=8\ ft

Area of outside region is A_1=\pi (8^2)

Area of inside region A_2=\pi (7)^2

Area of shaded region A_1-A_2

Probability that point lies inside the shaded region is

\Rightarrow P=\dfrac{A_1-A_2}{A_1}\\\\\Rightarrow P=\dfrac{\pi (8^2-7^2)}{\pi 8^2}\\\\\Rightarrow P=\dfrac{64-49}{64}\\\\\Rightarrow P=\dfrac{15}{64}

5 0
3 years ago
Find the sales tax.<br><br> selling price = $40.00<br> rate of sales tax = 8%<br> sales tax = ?
tresset_1 [31]

Step-by-step explanation:

sales tax= 8% of $40.00

=8/100× $40.00

=$3.20

6 0
3 years ago
Read 2 more answers
Let f(x) = x2 − 81. Find f−1(x).
Umnica [9.8K]
F(x) = x² - 81

Finding f⁻¹(x) the inverse function

Let y = f(x) and solve for x.

y = x² - 81

y + 81 = x²

x² = y + 81

x = √(y + 81)

Recall f(x) = y, that means x = f⁻¹(y)

x = √(y + 81)

f⁻¹(y) = √(y + 81)

Therefore   f⁻¹(x) = √(x + 81)
3 0
3 years ago
Find two fractions equivalent to each fraction.<br><br> 3 over 9<br><br> 20 over 22
Anvisha [2.4K]

Answer:

1/3 and 10/11, or 9/27 and 40/44

Step-by-step explanation:

Simplified 3/9  by 3.

Simplified 20/22 by 2.

7 0
3 years ago
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