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Alona [7]
2 years ago
7

Use the diagram below to answer the

Mathematics
1 answer:
Leviafan [203]2 years ago
6 0

Answer:

34

Step-by-step explanation:

Since this an isosceles triangle we can say the length of AB = AC

2x - 1 = x + 7

2x - x = 7 + 1

x = 8

The perimeter is calculated by adding all side lengths

2x - 1 + x + 7 + x - 4 = Area add like terms

4x + 2 = Area replace x with the value we found

4*8+2 = 34 units square

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Solve the system of equations using any appropriate method: 5x + 2y = -4 and -x + 2y = 8
Maru [420]

Answer:

A

Step-by-step explanation:

-x + 2y = 8

5x + 2y = -4

+ x. -2y. -8

6x = -12

÷6. ÷6

x = -2

5(-2) + 2y = -4

-10 + 2y = -4

+10. +10

2y = 6

÷2. ÷2

y = 3

4 0
3 years ago
The value of y varies directly with x if x=8 then y=96 what is the value of x when y=196
ExtremeBDS [4]

Answer:

13

Step-by-step explanation:

6 0
2 years ago
You pick 5 digits (0-9) at random without replacement, and write them in the order picked. What is the probability that you have
Tanzania [10]

Answer:

Probability is : 1/30240= 0.000033068

Step-by-step explanation:

You pick 5 digits (0-9) at random without replacement, and write them in the order picked.

The probability that you have written the first 5 digits of your phone number is -

As there are no repeats, the choice to choose from decreases at each step making it 10,9,8,7,6.

(1/10)(1/9)(1/8)(1/7)(1/6)=1/30240= 0.000033068

4 0
3 years ago
What is the area of a triangle with a base of 1.3cm and height of 0.5 cm?
sammy [17]

Answer:

0.325 cm²

Step-by-step explanation:

A = \frac{1}{2}bh = \frac{1}{2}*1.3*0.5 = 0.325 cm²

6 0
2 years ago
Read 2 more answers
PLZ HELP QUICKLY!<br> Find the value of the expression.<br> 10^2
blagie [28]

Answer:

100 is correct answer

Step-by-step explanation:

{10}^{2}  \\  = 10 \times 10 \\  = 100

when ever anything ² , it means that number is multiplied by itself.

in above we multiple 10 with 10 and we get 100.

hope it helped you:)

8 0
3 years ago
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