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Travka [436]
3 years ago
8

Please need help Please

Mathematics
1 answer:
Gekata [30.6K]3 years ago
8 0

Answer: 14/11

Step-by-step explanation:

When 14/11 is multiplied by 1/4, you get a repeating decimal.  All repeating decimals are rational.

Hope it helps <3

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Bryan earns $7.50 per hour working at mcdonalds and $6.00 per hour mowing lawns. Last week he worked 40 hours and earned $282. H
scoundrel [369]

Answer:

12 hr. mowing lawns

28 hr. working at Mc Donalds

Step-by-step explanation:

Let t = time mowing lawns

then 40 - t = time working at McDonalds

7,5(40 - t) + 6t = 282

300 - 7.5t + 6t = 282

-1.5t = -18

t = 12 hr. mowing lawns

40 - t = 40 - 12 = 28 hr. working at Mc Donalds

8 0
3 years ago
3y-2x=6 find the tangent y​
kogti [31]

Answer:

y=2x/3 + 2

Step-by-step explanation:

3y= 2x +6

y=2x/3 + 2

4 0
3 years ago
PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!
Darina [25.2K]
CB = DA = √3*3+1*1 = √10
CD = BA = √2*2+1*1 = √5

Sum is 2√10 + 2√5 ≈ 10.8. So answer A.
4 0
3 years ago
Which fraction is closer to than 1?<br> 7/8<br> 10/12<br> 12/14<br> 7/10
Zigmanuir [339]

Answer:

7/8

Step-by-step explanation:

The fraction closest to 1 is 7/8 because it is only 1/8 piece away from one.

3 0
3 years ago
The curve with equation y2 = 5x4 − x2 is called a kampyle of eudoxus. find an equation of the tangent line to this curve at the
Vesnalui [34]
To find the tangent line we will need the slope of the tangent at x=-1 (the x-coordinate of the point given). We find the slope by using the derivative of the curve.

Th curve given is y^{2} =5 x^{4} - x^{2} which can be solved for y by taking the root of both sides. We obtain y=(5 x^{4}- x^{2} ) ^{1/2}

We find the derivative using the chain rule. Bring down the exponent, keep the expression in the parenthesis, raise it to 1/2 - 1 and then take the derivative of what is inside.

y’=(1/2)(5 x^{4} - x^{2} )^{-1/2}(20 x^{3} -2x)

Next we evaluate this expression for x=-1 and obtain:
\frac{20(-1)^{3} -(2)(-1)}{2 \sqrt{5(-1 ^{4}-(-1 ^{2})  } }= \frac{-20+2}{2 \sqrt{5-1} }=-18/4=-9/2

So we are looking for a line through (-1,2) with slope equal to -9/2. We use y=mx+b with m=-9/2, x=-1 and y=2 to find b.

2=(-9/2)(-1)+b
2-(9/2)=b
b=-5/2

So the tangent line is given by y=(-9/2)x+(-5/2)

3 0
3 years ago
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