3 years ago

LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL'manburg

Mathematics

1 answer:

zhannawk [14.2K]3 years ago

4 0

Answer:

C-5 to 18 ; 1 to 225

Step-by-step explanation:

Its from the USA test prep.

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on average jamal drinks 1/2 of a 6 ounce glass of water in 1/4 of an hour, how much water does he drink in an hour

tatyana61 [14]

Answer:

12 ounces

Step-by-step explanation:

If he drinks 3 ounces on 1/4 an hour, then all you have to do is multiply by 4

3 0

4 years ago

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Solve.<br> −8.5d ≥ 20<br><br> d ≤ –170<br> d ≥ –170

saw5 [17]

Answer:

$\rm =>D \leqslant 2.352941$

Step-by-step explanation:

−8.5d ≥ 20

Divide both sides by -8.5:

$=> \cfrac {- 8.5 \: d}{ - 8.5} \ \geqslant \cfrac{20}{ - 8.5}$

$\rm=>d \leqslant 2.352941$

This is the answer.

3 0

2 years ago

A student needed to prepare 500mL of 1X TAE buffer to run a QC gel. The stock solution in the lab is 5X TAE. What volumes of sto

Xelga [282]

Answer:

you need 100ml of 5X TAE and 400ml of water.

Step-by-step explanation:

You need to use a rule of three:

$C_1V_1=C_2V_2$

where:

$\left \{ {{C_1= 5X} \atop {C_2=1X}} \right.$

and

$\left \{ {{V_1 = V_{TAE}} \atop {V_2=500ml}} \right.$

Therefore:

$V_{TAE} = \frac{V_2*C_2}{C_1}$

$V_{TAE} = 100ml$

Then just rest the TAE volume to the final Volume and you get the amount of water that you need to reduce the concentration.

3 0

3 years ago

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Evaluate 6 - 2(-1) + | -5 | =

tester [92]

Answer:

Step-by-step explanation:

The product of two negative numbers is positive. The absolute value of a number is its magnitude written with a positive sign.

6 -2(-1) +|-5|

= 6 + 2 + 5

= 13

8 0

3 years ago

I) Solve the equation sin2x + 3cos2x = 0 (for 0 till 360°)

galina1969 [7]

Get rid of cos2x by dividing both the values. So Sin2x/cos2x +3cos2x/cos2x.
Tan2x = 3
2x = -71.5 so x is -35.6
Use the quadrant method and add 360 twho the two values tou get.

7 0

3 years ago