4 years ago

I NEED HELP WITH THESE MATH PROBLEMS!!

1 answer:

8 0

For 15- it takes him 30 minutes to run.
8 divided by 3 is 2 2/8
8 divided by 60 is 0.1333
That's about 0.6 of a hour.
That's 36 minutes!

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What is the length of the altitude to the longest side of a triangle, if the lengths

sergeinik [125]

Answer:

hb ≈ 7.06cm

Step-by-step explanation:

Using the formulas:

A=hbb

A=s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c

Solving for hb

hb=﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4

2b=﹣154+2·(15·17)2+2·(15·8)2﹣174+2·(17·8)2﹣84

2·17

≈7.05882cm

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3 years ago

The value of a car has decreases by 5% each year. Sophie bought a car two years ago for £10000 work out the value now .

BigorU [14]

Answer:

£9000

Step-by-step explanation:

= £10 000× 5 ×2

100

= 1000

= £10 000-1000

= £9000

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3 years ago

Find a solution to 3cos(θ)=−0.862 in radians

eimsori [14]

$3cos(\theta) = -0.862$
$\frac{3cos(\theta)}{3} = \frac{-0.862}{3}$
$cos(\theta) = -\frac{431}{1500}$
$cos^{-1}[cos(\theta)] = cos^{-1}(-\frac{431}{1500})$
$\theta = 106.6983737\°$
$\theta = 1.86223792^{r}$

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3 years ago

FOR 99 POINTS

Katyanochek1 [597]

Set up multiplication/division to introduce units you need and to cancel out those that you do not need for your answer...

2500mi(in/500mi)=5in

4 0

3 years ago

Read 2 more answers

a vet borrows $12,000 for 4 years. The total interest paid was $875. what was the interest rate on the loan

Mrac [35]

$2,125. I hope I helped.

4 0

4 years ago