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3 years ago

11

Pls help me on this question As quick as possible Working out not necessary

2 answers:

Sauron [17]3 years ago

5 0

The vegetable patch is a trapezoid.

The formula for a trapezoid is A=[(a+b)/2]*h

we can substitute to get A=[(5+7)/2]*10

we solve this and get 60 meters

solving for the flower bed, we use (b*h)/2 since it is a triangle

substituting we get (3*8)/2

this simplified is 12

we add 12 and 240 to get a area of the flower bed and vegetable garden to be 72 meters

we calculate the total area by multiplying lw. we substitute to get 10(14) and get a total area of 140

we subtract 72 from 140 to get an answer of 68 sq m

Olin [163]3 years ago

3 0

Answer:

68

Step-by-step explanation:

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a person invest in 9000 in a bank. the bank pays 5% interest compounded semi annually. to the nearest tenth of a year, how long

QveST [7]

Answer:

10.1 years.

Step-by-step explanation:

It is given that,

Principal = 9000

Rate of interest = 5%

No. of times interest compounded = 2 times in an year

Amount after certain time = 14800

The formula for amount:

$A=P(1+\frac{r}{n})^{nt}$

where, P is principal, r is rate of interest, n is no. of times interest compounded in an year and t is time in years.

Substitute the given values in the above formula.

$14800=9000(1+\frac{0.05}{2})^{2t}$

$\frac{14800}{9000}=(1+0.025)^{2t}$

$1.644=(1.025)^{2t}$

Taking log both sides.

$\log(1.644)=\log(1.025)^{2t}$

$\log(1.644)=2t\log(1.025)$ $[\because \log a^b=b\log a]$

$\frac{\log(1.644)}{2\log(1.025)}=t$

$t=10.066$

$t=10.1$

Therefore, the required time is 10.1 years.

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3 years ago

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Kay [80]

Step-by-step explanation:

7a+5b+301 should be simplify

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Tanzania [10]

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Step-by-step explanation:

Given

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tamaranim1 [39]

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