All categories

3 years ago

(20 pts!) i really need help on this homework! I tried doing the first two but in stuck on the rest!

Mathematics

1 answer:

DerKrebs [107]3 years ago

8 0

Answer:

3. 7.276/27.151 = 0.268ml (I approximated it)

4. 3.167/37.206 = 0.0851ml

5. 25.34/18.78 = 1.348gm

6. 42.203x3.96 = 167.123gm

7. 44.70/37.44 = 1.194ml

8. object A on bottom and B on top.

You might be interested in

Halp please and thank you??????????

lana66690 [7]

Answer:

$thank \: you$

4 0

3 years ago

4. Becca wants to make a giant cherry pie to try to break the world record. If she succeeds in making a pie with a 20 foot diame

prisoha [69]

Answer:

Step-by-step explanation:

8 0

3 years ago

The law of cosines is used to find the measure of Z.

Shtirlitz [24]

Answer:

C. $Z=51^{\circ}$

Step-by-step explanation:

We have been given a triangle. We are asked to find the measure of angle Z using Law of cosines.

Law of cosines: $c^2=a^2+b^2-2ab\cdot \text{cos}(C)$ , where, a, b and c are sides opposite to angles A, B and C respectively.

Upon substituting our given values in law of cosines, we will get:

$16^2=19^2+18^2-2(19)(18)\cdot \text{cos}(Z)$

$256=361+324-684\cdot \text{cos}(Z)$

$256=685-684\cdot \text{cos}(Z)$

$256-685=685-685-684\cdot \text{cos}(Z)$

$-429=-684\cdot \text{cos}(Z)$

$\frac{-429}{-684}=\frac{-684\cdot \text{cos}(Z)}{-684}$

$0.627192982456=\text{cos}(Z)$

$\text{cos}(Z)=0.627192982456$

Now, we will use inverse cosine or arc-cos to solve for angle Z as:

$Z=\text{cos}^{-1}(0.627192982456)$

$Z=51.1566718^{\circ}$

$Z\approx 51^{\circ}$

Therefore, the measure of angle Z is approximately 51 degrees.

6 0

3 years ago

Read 2 more answers

At LaGuardia Airport for a certain nightly flight, the probability that it will rain is 0.15 and the probability that the flight

professor190 [17]

Answer:

0.853

Step-by-step explanation:

Use conditional probability. The probability of event A, given that event B has occurred, is:

P(A|B) = P(A and B) / P(B)

The probability that it is not raining, given that the flight leaves on time, is:

P(not raining | on time) = P(not raining AND on time) / P(on time)

P(not raining | on time) = 0.81 / (1 − 0.05)

P(not raining | on time) = 0.853

5 0

3 years ago

What is the median for 18, 7, 32, 4, 13

IgorC [24]

Answer: 13

Step-by-step explanation:

4,7,13,18,32

cross out 4 and 32

7, 13, 18

cross out 7 and 18

there is your median

3 0

3 years ago

Read 2 more answers