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Masteriza [31]
3 years ago
12

A total of 6 family members will appear in a portrait. If 4 of the family members may sit in the front row, how many combination

s of family members may sit in the front row? A.24 B.12 C.18 D.15
Mathematics
1 answer:
garik1379 [7]3 years ago
7 0
The order of the persons seated in front is not important so long as there are four of them. The combination of the given problem is expressed as,
                                     6C4
The numerical value of the combination is 15. Thus, the answer to this item is letter D. 
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Rosanne is training for the Austin marathon, so she plans to run 10 miles in her neighborhood this weekend. It usually takes her
PolarNik [594]

Answer:2.5 cups

Step-by-step explanation:

Given

Rosanne runs 6 miles in an hour

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So in 1 hour Rosanne drinks 1.5 cups

So, for 6 miles Rosanne drinks 1.5 cups

i.e. For   1\ mile \quad \equiv \quad \frac{1}{4}\ \text{cup}

for    10\ mile\quad \equiv \quad \frac{10}{4}\ \text{cup}

=2.5\ \text{cup}

6 0
3 years ago
A 2-yard piece of string costs $5.04. What is the price per foot?
Nikitich [7]
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4 0
3 years ago
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Find a parametrization, using cos(t) and sin(t), of the following curve: The intersection of the plane y= 5 with the sphere
Elenna [48]

Answer:

The  parametrization,  of the given curve is  x = 10 cos(t) \ \ ,z = 10 sin(t)

Step-by-step explanation:

From the question we are given the function

        x^2 + y^2 + z^2 = 125

At  y= 5

       x^2 + 5^2 +z^2 =125

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       x^2 + z^2 =  10^2

Converting the above  to it polar equation we have  

       x = 10 cos(t) \ \ ,z = 10 sin(t)

     

 

6 0
3 years ago
Please help (geometry)
jarptica [38.1K]
<h3>Answer: 54 degrees (third choice)</h3>

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Therefore, triangle ADB is a right triangle. The acute angles (A and B) add to 90, and we can say they are complementary angles.

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36+B = 90

B = 90-36

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6 0
3 years ago
Consider the graph of the quadratic function y = 2x2 – 4x + 2.
Ierofanga [76]

Answer:

The function only has one zero.

x = 1  actual coordinate (1, 0) on graph

Step-by-step explanation:

8 0
3 years ago
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