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Afina-wow [57]
3 years ago
9

F(a) = 3a; Find (7)​

Mathematics
1 answer:
7nadin3 [17]3 years ago
5 0

Answer:

<h2>f(7) = 21</h2>

Step-by-step explanation:

Put <em>a = 7 </em> to <em>f(a) = 3a</em>

<em>f(7) = 3(7) = 21</em>

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7√6 x √27 is equal to
mr Goodwill [35]

Answer:

63\sqrt{2}

Step-by-step explanation:

7\sqrt{6}* \sqrt{27} \\=7\sqrt2\sqrt{3} * \sqrt{9} \sqrt{3}\\ =7\sqrt{2}\sqrt{3} *3\sqrt{3}\\  =\sqrt{2} *3*3*7\\=63\sqrt{2}

3 0
3 years ago
8 in.<br> 7 in.<br> 8 in.<br> 12 in.<br> Find the perimeter of the figure.
Leona [35]

Answer:

35 in.

Step-by-step explanation:

<em><u>8+7+8+12=</u></em><em><u>35</u></em>

8 0
3 years ago
A small auditorium has 10 rows of seats. There are 12 seats in the row and 16 seats in the second row the number of seats in a r
guapka [62]

This problem can be solved through simple arithmetic progression

Let

a1 = the first term of the sequence

a(n) = the nth term of the sequence

n = number of terms

d = common difference

Sn = sum of all terms

 

given

a1 = 12

a2 = 16

n = 10

 

d = 16 -12 = 4

@n = 10

a(n) = a1 + (n-1)d

a(10) = 12 + (9)4

a(10) = 48 seats

 

Sn = (n/2) * (a1 + a(10))

Sn = 5* (12 + 48)

Sn = 300 seats

 

Therefore the total number of seats is 300.

 

 

4 0
3 years ago
Which scale factors produce a contraction under a dilation of the original image? Select each correct answer. ​−6​ ​−0.5​ 0.5 6
Step2247 [10]

A contraction would make the image smaller.


A negative number reflects the image and changes the size based on the number.


To make an image smaller the factor needs to be less than 1

so -0.5 and 0.5 would make the image smaller since 0.5 is less than 1.

7 0
3 years ago
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Mikaila collected 27 pounds of glass bottles to bring to the recycling center. she also collected 400 ounces of newspapers and 1
Paul [167]
The total weight of the items Mikaila brought to the recycling center is 992.
8 0
3 years ago
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