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Alexxx [7]
4 years ago
10

find a counterexample to show that the following statment is false. if a number is multipled by itself, the result is even. choo

se the correct answer below a. 3*5=15 b. 6+6=12 c. 4*4=16 d. 5*5=25
Mathematics
1 answer:
olya-2409 [2.1K]4 years ago
7 0
A. Not a proper counterexample as 3 and 5 aren't the same number. We can rule out choice A.

B. We can rule out choice B since we're not multiplying here

C. We are multiplying the same value with itself but the result is even. We can rule this out.

D. This is a proper counter example. We have the same number (5) multiplied by itself leading to a result that is not even. It contradicts the initial claim.

Answer: Choice D
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A neighborhood development that is 4 acres is to be divided into 2/3 acre lots.How many lots can be created
saul85 [17]

no of lots to be created=4/2/3=12/2=6

3 0
3 years ago
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timofeeve [1]

Answer:

what should we find here

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3 years ago
I need help finding the whole question, i'm not sure if what i've done already if correct, thanks
artcher [175]
Median of 15

(14 + b) / 2 = 15
14 + b = 15 * 2
14 + b = 30
b = 30 - 14
b = 16

range of 30
 c - a = 30....c = 30 + a

mean of 18
(a + 8 + 14 + 16 + 26 + c) / 6 = 18
(a + 8 + 14 + 16 + 26 + (30 + a)) / 6 = 18
(2a + 94) / 6 = 18
2a + 94 = 18 * 6
2a + 94 = 108
2a = 108 - 94
2a = 14
a = 14/2
a = 7

c - a = 30
c - 7 = 30
c = 30 + 7
c = 37

check..
7,8,14,16,26,37
median = (16 + 14) / 2 = 30/2 = 15 ...correct
range = 37 - 7 = 30...correct
mean(average) = (7 + 8 + 14 + 16 + 26 + 37) / 6 = 108/6 = 18...correct

so a = 7, b = 16, and c = 37

3 0
3 years ago
Graph the linear equations in three points: -x-2y=-10
dmitriy555 [2]

Answer:

Step-by-step explanation:

Rewrite -x-2y= -10 as  -2y= x - 10 and then as y = (-1/2)x + 5.

Then choose any 3 x values and find the corresponding y values using this formula.  For example:

 x     y = (-1/2)x + 5              (x, y)

-----   --------------------            ---------

 0                   5                    (0, 5)

-4       (-1/2)(-4) + 5 = 7         (-4, 7)

  6      (-1/2)(6) + 5 = 2          (6, 2)

Plot these three points and then draw a line through them.  

4 0
3 years ago
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A cone and a sphere have the same volume the base of the cone has a radius of 8 feet and the sphere has a radius of 6 feet what
jekas [21]

Step-by-step explanation:

Volume of Cone=

\frac{1}{3} \pi \: r {}^{2} h

Volume of Sphere=

\frac{4}{3} \pi \: r {}^{3}

Since VC = VS

\frac{1}{3} \times 3.14 \times 8 {}^{2}  \times h =  \frac{4}{3}  \times 3.14 \times 216

66.99h = 904.32

h = 904.32 ÷66.99

h= 13.5 feet

3 0
3 years ago
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