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3 years ago

Is-6 is greater then -4.50

Mathematics

1 answer:

alexgriva [62]3 years ago

7 0

-4.50 is closer to 0 so no

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A scientist conducted an experiment. Due to chemical reaction, the temperature of a compound rose 1/10 degree every 1/4 hour for

klio [65]

Answer:

The rate is $\frac{2}{5}$ degree per hour.

Step-by-step explanation:

Given : A scientist conducted an experiment. Due to chemical reaction, the temperature of a compound rose $\frac{1}{10}$ degree every $\frac{1}{4}$ hour for a limited time.

To find : What was the rate, in degrees per hour that the temperature of the compound rose ?

Solution :

In every $\frac{1}{4}$ hour the temperature of a compound rose $\frac{1}{10}$ degree

To get the rate, in degrees per hour,

In every 1 hour the temperature of a compound rose is

$r=\dfrac{\frac{1}{10}}{\frac{1}{4}}$ degree

$r=\dfrac{4}{10}$ degree/hr

$r=\dfrac{2}{5}$ degree/hr

Therefore, the rate is $\frac{2}{5}$ degree per hour.

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3 years ago

4.A trapezoid with a perimeter of 30 units is

Tom [10]

Answer:

It would be (x0.3,y0.3). C is the answer

Step-by-step explanation:

Because if you actually read it, it already gave you the answer which is the scale factor of 0.3

so that would lead to (x0.3,y0.3)

6 0

3 years ago

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ehidna [41]

......The last one

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3 years ago

Danielle borrowed $125 to pay for school books. She needs to pay it back with interest in 2 years. Danielle wants to figure out

Gemiola [76]

Answer:

Step-by-step explanation:

Danielle has :

Principal = $125

Time = 2 years

Rate = ?

Interest =

$\frac{Principal \times Rate \times Time}{100}$

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3 years ago

What is ln (a-b)=?<br> As if ln (a)= x and ln (b)= y

Strike441 [17]

$\ln a=x\Rightarrow a=e^x\\\\\ln b=y\Rightarrow b=e^y\\\\\ln(a-b)=\ln(e^x-e^y)$

6 0

3 years ago