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KiRa [710]
3 years ago
9

Which number below is a prime number? O A. 61 OB. 102 O C. 75 O D. 64​

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
3 0

Answer:

Step-by-step explanation:

61 is divisible by itself and 1. It's prime.

102 ends in a 2. Therefore it is not prime because it can be divided by 2,

75 = 3*5*5 not prime.

64 = 2 * 2 * 2 *2 * 2*2 Not prime.

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Work out the area of the trapezium ABDE.<br> B<br> 9 cm<br> 6 cm<br> 8 cm<br> →D<br> E
Evgen [1.6K]

Answer:

Area of the trapezium ABDE = 30 cm²

Step-by-step explanation:

Area of a trapezium = \frac{1}{2}(b_1+b_2)h

Here, b_1 and b_2 are the parallel sides of the trapezium

h = Distance between the parallel sides

From the picture attached,

ΔCAE and ΔCBD are the similar triangles.

So by the property of similarity their sides will be proportional.

\frac{AE}{BD}= \frac{CE}{CD}

\frac{9}{6}=\frac{CE}{8}

CE = \frac{9\times 8}{6}

CE = 12 cm

Therefore, DE = CE - CD

DE = 12 - 8 = 4 cm

Now area of trapezium ABDE = \frac{1}{2}(AE+BD)(DE)

                                                  = \frac{1}{2}(6+9)4

                                                  = 30 cm²

Therefore, area of the trapezium ABDE = 30 cm²

8 0
3 years ago
What is the common denominator of 3/5, 7/8, and 5/6?
Mademuasel [1]

Answer:

120

Step-by-step explanation:

well it have to be a nuber by 5, 10 etc

also even too

so that be 120

5 0
3 years ago
Find the solution to the equations. 2x - y = -3 x y = 0 (0, 0) (-1, 1) (1, -1)
rosijanka [135]
(2x-y = -3 × y = 0 × (0, 0) × ( -1, 1) × (1, -1) = (2x - y = -3 × y =0 × (0)) ×, × 0 ×, × 1 ×, × -1
4 0
3 years ago
!!!!!!! HELPPPPPP !!!!!! ASAP !!!!!!!!! HELPPPPPP!!!!!!!!!!!!
ElenaW [278]

Answer:

No you wouldn't because you are not dividing or multiplying by a negative number.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
(5x)/6 + 11/4 = 17/3
pantera1 [17]

Answer: Exact Form: x = 7/2

Decimal Form: x = 3.5

Mixed Number Form: x = 3 1/2

How to: <u> Solve for  x  by simplifying both sides of the equation, then isolating the variable.</u>

Have a great day and stay safe !

3 0
3 years ago
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