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3 years ago

A petroleum laboratory technician can perform 56 tests on samples in 7 hours. At this rate, how many of the same

Mathematics

2 answers:

natima [27]3 years ago

7 0

Answer:

Step-by-step explanation:

56/7 = 8

8*8 = 64

64 tests

oksano4ka [1.4K]3 years ago

3 0

The answer is 64 because if you do the equation 7x=56 divide both sides by 7. you get x=8. therefore that means they do 8 tests every hour since they’re asking for how many tests in 8 hours. multiply 8x8 and you get 64

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Determine the center and radius of the following circle equation:<br> x^2+y^2+12x-10y+12=0

harina [27]

Answer:

Center: ( -6,5) Radius: 7

Step-by-step explanation:

I hope this helps!

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3 years ago

Read 2 more answers

sketch the curve represented by the parametric equations (indicate the orientation of the curve), write the corresponding rectan

pychu [463]

Answer:

Reduced equaton is $5x-3y+\frac{28}{3}=0$ .

Step-by-step explanation:

Given parametric equation is,

$x=3t-5$ and $y=5t+1$

Now, $x=3t-5\implies t=\frac{x+5}{3}$ substitute in second equation we get,

$y=\frac{5}{3}(x+5)+1$

$y=\frac{5}{3}x+\frac{28}{9}$

$\implies 5x-3y+\frac{28}{3}=0$

which is the corresponding rectangular equation after eliinating the parameter.

Now consider,

$y=\frac{5}{3}x+\frac{28}{9}$

Of which,

Slope : $\frac{5}{3}$

when,

$x=0, y=\frac{28}{9}=3.1$

$x=1, y=\frac{43}{9}=4.8; x=-1, y=\frac{13}{9}=1.4$

$x=2, y=\frac{58}{9}=6.4; x=-2, y=\frac{-2}{9}=-0.2$

$x=3, y=\frac{73}{9}=8.1; x=-3, y=\frac{-17}{9}=-1.8$

$x=4, y=\frac{88}{9}=9.8; x=-4, y=\frac{-32}{9}=-3.6$

$x=5, y=\frac{103}{9}=11.4; x=-5, y=\frac{-47}{9}=-5.2$

ans so on. Thus sketching th curve will look like given,

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3 years ago

A bank account has a beginning balance of $560.00. After 6 months, the balance in the account has increased to $572.60. What int

trasher [3.6K]

Answer:

D. 4.5%.

Step-by-step explanation:

Interest earned in 6 months = 572.6 - 560 = $12.60.

As a percentage this is (12.60 * 100) / 560

= $ 2.25%.

So the annual interest is 2 * 2.25

= 4.5%.

4 0

3 years ago

WILL MARK BRAINLIEST!!!! PLZ HELP!!!! Using the two-way table, what percentage of the students that like to travel out of state

grigory [225]

Answer:

41%

Step-by-step explanation:

The table shows that 36 of the 88 students that like traveling out of state do not like camping. That percentage is ...

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3 years ago

Help please<br> Write a word problem that could be solved by using the equation 10.75 = 5.5n?

labwork [276]

If you make $10.75 a day, how many hours do u work if u get paid $5.5 per hour?

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3 years ago