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2 years ago

8.75 round to the nearest hundredths

Mathematics

1 answer:

eduard2 years ago

6 0

8.75 rounded to the nearest hundredth is 8.80

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A ship sails from harbour h on a bearing of 084 for 340 km until it reaches point P. It the sails on a bearing of 210 for 160km

sattari [20]

Answer:

QH = 227.8 km ≅ 228 km

Step-by-step explanation:

∵ The bearing from H to P is 084°

∵ The bearing from P to Q is 210°

∵ The distance from H to P = 340 km

∵ The distance from P to Q = 160 km

∴ The angle between 340 and 160 = 360 - 210 - (180 - 84) = 54°

( 180 - 84) ⇒ interior supplementary

By using cos Rule:

(QH)² = (PH)² + (PQ)² - 2(PH)(PQ)cos∠HPQ

(QH)² = 340² + 160² - 2(340)(160)cos(54) = 51904.965

∴ QH = 227.8 km ≅ 228 km

7 0

2 years ago

Read 2 more answers

Subtract the rational expression 1/x^2-x-6 - x/x+2.

Aleksandr [31]

Answer:

Step-by-step explanation:

x² - x -6 = x² + 2x - 3x - 3*2

=x(x + 2) - 3(x + 2)

= (x + 2 )(x - 3)

$\frac{1}{x^{2}-x-6}+\frac{x}{x+2}=\frac{1}{(x +2 )(x - 3)}-\frac{x}{x + 2}\\$

$= \frac{1}{(x+2)(x-3)}-\frac{x(x-3)}{(x+2)(x-3)}\\\\=\frac{1-x(x-3)}{(x+2)(x-3)}\\\\=\frac{1-x^{2}+3x}{(x+2)(x-3)}\\\\$

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2 years ago

1. How many fifties are there in one hundred thousand?

VladimirAG [237]

There are 2,000 fifties in one hundred thousand

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1 year ago

If y varies inversely as x and y is 2.5 when x is 6, what is y when x is 4?

Delicious77 [7]

Y=k/x
2.5=k/6
k=15

wheny x=4, y=15/4
y=3.75

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2 years ago

Factor the GCF: 9x4y − 6x3y2 + 3x2y3.

Ganezh [65]

For this case we have the following expression:
$9x^4y - 6x^3y^2 + 3x^2y^3
$
For this case what you should do is observe the terms that are repeated in the given expression.
We have then:
$3x^2y
$
It is the term that is present in the whole expression.
Therefore, by doing common factor we have:
$3x^2y (3x^2 - 2xy + y^2)
$
Answer:
the GCF is:
$3x^2y (3x^2 - 2xy + y^2)$
option A: a 3 is missing at the beginning of the option.

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2 years ago