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3 years ago

Simplify 4^3 divided by 2 - 3.6 (14.1 - 8.7)

Mathematics

2 answers:

yawa3891 [41]3 years ago

8 0

Answer:

12.56 is the correct answer

Step-by-step explanation:

Evgen [1.6K]3 years ago

4 0

Answer:

Step-by-step explanation:

Your answer is 5.4. :)

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Find the equivalent expression to 3+2(2p+4t)

icang [17]

Answer:

3 + 4p + 8t

Step-by-step explanation:

3 + 2(2p + 4t)

1. Distribute

3 + 4p + 8t

4 0

3 years ago

The winning bids at an art auction were $250, $170, $225, $185, $160, $250,$995, and $215. What was the median winning bid.

posledela

The median would be $306.25.

4 0

4 years ago

In △ABC, point M is the midpoint of AB , point D∈ AC so that AD:DC=2:5. If AABC=56 yd2, find ABMC, AAMD, and ACMD.

Komok [63]

Since point M is the midpoint of AB, then AM=MB.

Consider the area of the triangles ABC and BMC:

$A_{ABC}=\dfrac{1}{2}\cdot AB\cdot h_c=56\ yd^2,$

where $h_c$ is the height drawn from the vertex C to the side AB.

So, $AB\cdot h_c=112\ yd^2.$

Now

$A_{BMC}=\dfrac{1}{2}\cdot BM\cdot h_c=\dfrac{1}{2}\cdot \dfrac{AB}{2}\cdot h_c=\dfrac{1}{4}\cdot AB\cdot h_c=\dfrac{1}{4}\cdot 112=28\ yd^2.$

Also

$A_{AMC}=A_{ABC}-A_{BMC}=56-28=28\ yd^2.$

Now consider the area of the triangles AMD and CMD. Let $h_M$ be the height drawn from the point M to the side AC.

$A_{AMD}=\dfrac{1}{2}\cdot AD\cdot h_M=\dfrac{1}{2}\cdot \dfrac{2AC}{7}\cdot h_M=\dfrac{2}{7}\cdot \left(\dfrac{1}{2}\cdot AC\cdot h_M\right)=\dfrac{2}{7}\cdot A_{AMC}=\dfrac{2}{7}\cdot 28=8\ yd^2.$

Therefore,

$A_{MDC}=A_{AMC}-A_{AMD}=28-8=20\ yd^2.$

Answer: $A_{MBC}=28\ yd^2, A_{AMD}=8\ yd^2, A_{MDC}=20\ yd^2.$

5 0

3 years ago

Read 2 more answers

Suppose a normal distribution has a mean of 62 and a standard deviation of

loris [4]

Answer:

Step-by-step explanation:

5 0

4 years ago

Dr. Irvine saw 130 patients in one week. The ratio of kids to adults that he saw is 3 to 7. If k represents the number of kids a

Vitek1552 [10]

Answer:

The correct answer is

C. k+d=130

7k = 3d

Number of kids Dr. Irvine see in a week is 39.

Step-by-step explanation:

1. Let's review the information given to answer the question correctly:

Number of patients Dr. Irvine see in a week = 130

Radio of kids to adults = 3:7 or 3/7

Number of Kids = k

Number of adults = d

2. Let's find the equations system that should be set up to find out how many kids Dr. Irvine see

k + d = 130 (Number of patients Dr. Irvine see in a week)

Including the ratio:

7k = 3d

Replacing d:

d = 130 - k

Now substituting:

7k = 3 * (130 - k)

7k = 390 - 3k

10k = 390

k = 390/10

k = 39

3 0

3 years ago