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3 years ago

5

what is the area of an isosceles trapezoid, if the lengths of its bases are 16cm and 30cm and the diagonals are perpendicular to

each other?

1 answer:

noname [10]3 years ago

3 0

I think 161.... if its a 45 45 90

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For passing Grade 8, you received a $150 gift card. You want to purchase a skateboard for $78.50 and a helmet for $32.00. a) Sal

Yuki888 [10]

Answer:

a) $14.37 sales tax

b) $25.13 left on gift card

Step-by-step explanation:

Purchases: 78.50 + 32.00 = 110.50

Sales tax: 13%:

1% of 110.50 = 1.1050

1.1050 x 13 = 14.365

rounded to 2 decimal places: $14.37

Total cost: 110.50 + 14.37 = $124.87

Gift card: 150.00 - 124.87 = 25.13

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3 years ago

Maya deposits $5000 into a checking account that pays 0.75% annual interest compounded monthly. What will be the balance after 8

Nana76 [90]

$~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$5000\\ r=rate\to 0.75\%\to \frac{0.75}{100}\dotfill &0.0075\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years\dotfill &8 \end{cases} \\\\\\ A=5000\left(1+\frac{0.0075}{12}\right)^{12\cdot 8}\implies A=5000(1.000625)^{96}\implies A\approx 5309.08$

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2 years ago

Jim walks 2 miles in an hour. It takes him 3 hrs to walk 6 miles.

pentagon [3]

Answer:

He would walk 10 miles in 5 hours, and it would take him 2 hours to walk 4 miles.

Step-by-step explanation:

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3 years ago

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Rudik [331]

Answer:

42.5m/s

Step-by-step explanation:

Divide by 40

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3 years ago

Write the number described by 1 ten 16ones

IRISSAK [1]

10 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

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3 years ago

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