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Ratling [72]
3 years ago
8

Find the area of a trapezoid, given bases 10.2cm and 12.2cm and side 12.6cm

Mathematics
1 answer:
alexgriva [62]3 years ago
6 0
1/2 x (10.2 + 12.2) x 12.6 = 141.12 cm^2
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Fill in the blank 8(? +3) =48+24
Triss [41]

Answer:

6

Step-by-step explanation:

treat the ? as an x. you need to get it by itself. but first you should distribute the 8.

8x + 24 = 48 +24

8x+24 = 72

take the 24 and subtract it from 72

8x= 48

now divide both sides by 8

x= 6

3 0
3 years ago
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Gary draws this sequence of patterns of white and grey squares. The sequence is continued. How many grey squares will there be w
zzz [600]

Answer:

20 gray squares

Step-by-step explanation:

Given

See attachment for squares

Required

Number of gray squares when white = 16

First, we calculate the equation that represents both squares.

<u>The white squares</u>

a = 2 --- initial

d = 4 - 2 = 6 - 4

d = 2 -- difference between successive gray squares

So, the nth term is:

W_n = a + (n - 1)d

W_n = 2 + (n - 1)*2

W_n = 2 + 2n - 2

W_n = 2n

<u>The gray squares</u>

a = 6 --- initial

d = 8-6=10-8

d = 2 -- difference between successive gray squares

So, the nth term is:

G_n = a + (n - 1)d

G_n = 6 + (n - 1) *2

G_n = 6 + 2n - 2

G_n = 4 + 2n

When the white squares is 16

W_n = 16 --- Calculate n

W_n = 2n

16 = 2n

8 = n

n = 8

To get the number of gray squares;

Substitute n = 8 in G_n = 4 + 2n

G_n = 4 + 2 * 8

G_n = 20

4 0
3 years ago
it takes about me 25 minutes to make out a test for a mathamatics class. How long will it take to make out tests for all fve of
Elza [17]
150 minutes of mathmatices class
3 0
3 years ago
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Mason throws a coin 3 times.
kow [346]

Given:

Mason throws a coin 3 times.

The outcome of each throw is either Heads or Tails.

To find:

The list of all the possible outcomes of the 3 throws.​

Solution:

Let H represents heads and T represents tails.

For each throw we have 2 choices either H or T.

For three throws the total number of possible outcomes is

2^3=8

Now, list the possible outcomes as shown below.

HHH, HHT, HTH, HTT, THH, THT, TTH, TTT

Therefore, the list of 8 possible outcomes is HHH, HHT, HTH, HTT, THH, THT, TTH, TTT.

7 0
3 years ago
Y= 12 - 4.5x what’s the slope
mestny [16]
What you do is move the equation around so the 12 -4.5x would now turn into y=-4.5x+12
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