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astraxan [27]
3 years ago
12

Find a close estimate for: √18

Mathematics
2 answers:
sashaice [31]3 years ago
6 0
The square root for 18 is 4.242.... , not sure how you want it estimated
aev [14]3 years ago
4 0

Another way to estimate sqrt(18) is to understand that

sqrt(18)

=sqrt(9)sqrt(2)

=3sqrt(2)

=3*1.414

=4.242


Note: estimate for sqrt(2) can be by common usage, or the fact that 14*14=196.

memorizing a few square-roots is an advantage in these situations:

sqrt(2)=1.41421356

sqrt(3)=1.7320508

sqrt(5)=2.2360680

etc.

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-1 3/7 • (-3 2/3) = ?<br><br> A: 3 2/7<br> B: 5 5/21<br> C: 11<br> D: -5 5/21
Anna35 [415]

[|] Answer [|]

\boxed{5 \ \frac{5}{21}}

[|] Explanation [|]

-1 \ \frac{3}{7} * -3 \frac{2}{3}

-----------

-----------

Convert Fractions To Mixed Numbers:

-1 \ \frac{3}{7} = \frac{-10}{7}

-3 \ \frac{2}{3} = \frac{-11}{3}

Multiply Across:

\frac{-10 \ * \ -11}{7 * 3}

= \frac{110}{21}

Simplify:

= 5 \ \frac{5}{21}

\boxed{[|] \ Eclipsed \ [|]}

8 0
3 years ago
¿What is the density of a rock if it has a mass of 50 g and a volume of 10 mL?
yan [13]

D=m/v so d=50/10=5

The density is 5g/ml

It might be ml^3 (5g/ml^3) but I don’t remember

4 0
3 years ago
Write the equation, in slope-intercept form, of a line with an undefined slope and an x-intercept of -7. Type the equation in th
quester [9]
Undefined slope

slope=rise/run
if run=0, we get an undefined slope
means that it does go left or right, only up and down
the equaiton will be x=something
x intercept is -7 so the equation is x=-7
4 0
3 years ago
A person places $103 in an investment account earning an annual rate of 1.9%, compounded continuously. Using the formula V = P e
Advocard [28]

Answer:

$115.36

Step-by-step explanation:

Given data

P=$103

r=1.9%

t= 6 years

The expression for the amount is given as

V = P e ^{r t}

substitute

V = 103*e^{0.019 *6}

V = 103*e^{0.114}\\\\V = 103*1.120\\\\V = 115.36\\\\

Hence the final amount is $115.36

7 0
3 years ago
PLEASE HELP ASAP!!!!!!!!!!!
irina [24]

Answer:

132 in^2 but DOUBLE CHECK MY WORK!!!!

Step-by-step explanation:

Break it down into parts ok. So I see a 10x10 square, two 2x4 right triangles and a 4x6 rectangle.

10x10 is 100 in

1/2(2*4) = 4 x 2 = 8 in

6x4 = 24 in

add them together to get 132 in^2

7 0
3 years ago
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