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Basile [38]
3 years ago
9

Find the value of x.

Mathematics
1 answer:
Triss [41]3 years ago
6 0

Answer:

D

Step-by-step explanation:

The midsegment AC is half the sum of the parallel bases, that is

AC = \frac{DF+EB}{2} , then

x = \frac{13+9}{2} = \frac{22}{2} = 11 → D

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There are 800 members in an astronomy club, and 320 of them are females. What percent of the members are males.
Liula [17]
ANSWER: 60% of the members are males

How?
-800 total
-320 females
800 - 320 = 480
480/800 = 0.6

Hope this Helps!
8 0
3 years ago
Read 2 more answers
Which of the following statements are true?
Eduardwww [97]

Answer:

B, C

Step-by-step explanation:

Consider all options:

A. The graph of the function f(x)=\dfrac{1}{2}\sqrt[3]{x} is vertically shrunk by a factor \frac{1}{2} the graph of the function f(x)=\sqrt[3]{x}, so the domain and the range of both functions are the same. This option is false.

B.  The graph of the function f(x)=\dfrac{1}{2}\sqrt[3]{x} is vertically shrunk by a factor \frac{1}{2} the graph of the function f(x)=\sqrt[3]{x}, so the domain and the range of both functions are the same. This option is true.

C. The graph of the function f(x)=\dfrac{1}{2}\sqrt[3]{(x-2)} is translated 2 units to the right and vertically shrunk by a factor \frac{1}{2} the graph of the function f(x)=\sqrt[3]{x}, so their graphs are similar except the first graph is shifted right and shrunk vertically by a factor of \frac{1}{2}.. This option is true.

D. The function f(x)=\dfrac{1}{2}\sqrt{x} has the domain and the range all non-negative real values. The function  f(x)=\sqrt[3]{x} has the domain and the range all real values. So this option is false.

3 0
3 years ago
Find the perimeter of triangles are 3.6, 5.7,4.5c
garri49 [273]

Answer:

13.8 cm

Step-by-step explanation:

the sides of the triangle measure 3.6, 5.7,4.5cm?

So, we have

perimeter is 3.6 + 5.7 + 4.5

13.8 cm

3 0
3 years ago
How to do this equation 2 radical 6 minus 3 radical 6
Slav-nsk [51]

\bf \stackrel{like-terms}{2\sqrt{6}-3\sqrt{6}}\implies -1\sqrt{6}\implies -\sqrt{6}

6 0
3 years ago
A jeweler wants to minimize business costs and has found that the average cost in dollars per necklace is given by C(x)=0.5x^2-7
Vika [28.1K]

Answer:

The maximum cost is 41 dollars per necklace.

Step-by-step explanation:

The average cost in dollars/necklace is given by :

C(x)=0.5x^2-7x+65.5  .....(1)

Where

x is the number of necklaces that are created

To maximize the cost, find the value of x by putting dC/dx = 0

\dfrac{d}{dx}(0.5x^2-7x+65.5)=0\\\\x-7=0\\\\x=7

Now put the value of x = 7 in equation (1).

C(x)=0.5(7)^2-7(7)+65.5\\\\=41\ \text{dollars per necklace}

Hence, the maximum cost is 41 dollars per necklace.

8 0
3 years ago
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