Cuál de las siguientes proposiciones es Falsa?


A.

Si el exponente de una potencia es cero, su resultado es la base.


B.

Para multiplicar potencias con la misma base, se suman los exponentes.


C.

Para dividir potencias con la misma base, se restan los exponentes.


D.

Un exponente es las veces que se repite la base.

Answer:

It is C

Step-by-step explanation:

this is easy math for me

Answer:

725.7 m²

Step-by-step explanation:

A=2πrh

r=16 1/2 ÷ 2 = 8 1/4

A= 2π(8.25)(14)=725.7

Answer:

That other person was such a troll but it by 43! Could you please mark me branllest? Only if you want to :)

Step-by-step explanation:

Answer:

one board game cost 15 dollars

75/5=15

15y

y = number of board games and 15= the price of each board game

so to calculate any number of board games bought just input the number of board games bought for y in the expression 15y and you will get the price.

Step-by-step explanation:

Answer:

a) 40050017 = 40,050,017

Forty million fifty thousand and seventeen

b) 251400 = 251,400

Two hundred fifty one thousand and four hundred

Step-by-step explanation:

In international system commas are placed after three digits starting from the unit's place.

a) 40050017 = 40,050,017

Forty million fifty thousand and seventeen

b) 251400 = 251,400

Two hundred fifty one thousand and four hundred

It can be placed as shown below.

TM, M, HTh , TTh, Th, H, T, O

4      0    0      5       0   0  1    7

             2       5       1   4   0  0

Answer: You are correct. The mode is between 90 and 100

This is because the tallest bar corresponds to this interval. The mode is the most frequent value.

Step-by-step explanation:

i am not sure but i hope this can help you

Answer: i took a screen shot of the answer hope this helped

plz make brainly

Step-by-step explanation:

Answer: Reflection about x-axis

Step-by-step explanation:

Given

Initially, vertices are [tex]A(-2,0), B(2,5),C(3,1)[/tex]

After reflection they become [tex]A(-2,0),B(2,-5),C(3,-1)[/tex]

It is clear that the x coordinate remains unchanged and the y coordinate changes its sign. It occurs when reflection is done about the x-axis.

For example, when (a,b) is reflected about the x-axis, it becomes (a,-b).

So, here reflection is being done about the x-axis.

Answer:

The value of 1 tenth is less than the value of 1 ten.

Step-by-step explanation:

Answer:

Because 3 x 1/10 = 3/10

whereas 3 x 10 = 30

and 3/10 < 30

Also b/c 1/10 < 10 and they are multiplied by the same value (3)

Step-by-step explanation:

Answer:

The answer is B. There are 432 desks in all 18 classes

Answer:

He squared the numbers inside without following the appropriate rule

Step-by-step explanation:

what he should have done

[tex](x-3)^2\\= x^2 - 2 *x*3+3^2\\= x^2-6x+9[/tex]

Answer:

let A and B be 2 and 3

Step-by-step explanation:

then substitute:

(5a+b)(a-6b) = 5a^2 - 29ab - 6b^2

(5×2+3)(2-6×3) = 5×2^2 - 29×2×3 - 6×3^2

13 × (-16) =20-174-54

-208 = -208

Answer: B, E

Step-by-step explanation:

Answer:

Perimeter = 36cm

Step-by-step explanation:

The area of a square =  l  2where l is the length of the square's side.

l 2 = 81 ⇒ l = √ 81 =9

hence Perimeter =  4 × 9 = 36 c m

[tex]\huge{ \mathfrak{ \underline{question : }}}[/tex]

One square has an area of 81cm². Calculate its perimeter.

[tex]\huge{ \mathfrak{ \underline{ Answer \: \: ✓ }}}[/tex]

For a Square,

[tex] \longrightarrow \: area = side {}^{2} [/tex]

So, The measure of each side of the square is 9 cm

[tex]\#TeeNForeveR [/tex]

Answer:

2 is the answer to your question

Answer:

See solution below

Step-by-step explanation:

Let the coordinate's of A and B be (1, 0) and (2,4) respectively

midpoint M (X, Y) = [(x1+x2/2, y1+y2/2)]

X = x1+x2/2

X = 1+2/2

X = 3/2

X = 1.5

Y = y1+y2/2

Y = 0+4/2

Y = 4/2

Y = 2

Hence the required midpoint (X, Y) is (1.5, 2)

Slope m = y2-y1/x2-x1

m = 4-0/2-1

m = 4/1

m = 4

Hence the slope is 4

Note that the coordinates are assumed but the same calculation can be employed for any other coordinates

Answer:

6

Step-by-step explanation:

9 - 3 = 6

Given:

Sum of ages of brother and sister = 15

Product of their ages = 54

To find:

How old is the older one between the two of them?

Solution:

Let x be the age of brother and y be the age of sister.

Sum of ages of brother and sister = 15

[tex]x+y=15[/tex]

[tex]x=15-y[/tex]                ...(i)

Product of their ages = 54

[tex]xy=54[/tex]

[tex](15-y)y=54[/tex]                [Using (i)]

[tex]15y-y^2=54[/tex]

[tex]0=54-15y+y^2[/tex]

Splitting the middle term, we get

[tex]54-15y+y^2=0[/tex]

[tex]54-9y-6y+y^2=0[/tex]

[tex]9(6-y)-y(6-y)=0[/tex]

[tex](6-y)(9-y)=0[/tex]

Using zero product property, we get

[tex](6-y)=0\text{ and }(9-y)=0[/tex]

[tex]y=6\text{ and }y=9[/tex]

If [tex]y=6[/tex], then using (i), we get

[tex]x=15-6[/tex]

[tex]x=9[/tex]

If [tex]y=9[/tex], then using (i), we get

[tex]x=15-9[/tex]

[tex]x=6[/tex]

Therefore, the age of older one is 9, the age of younger one is 6 and the difference between their ages is 3.

Answer:they have eaten 3/4 of the total pizza

Step-by-step explanation:

Let the whole pizza =1whole

Amount eaten by Toby =1/2

Amount eaten by Ahmed =1/4

Total Amount eaten by both of them =1/2 +1/4 =  2+1/ 4=3/4

Therefore, they have eaten 3/4 of the total pizza

Answer:

Step-by-step explanation:

S

Step-by-step explanation:

[tex] = \frac{(2c {}^{2} + c - 2) }{(c + 1)} \\ rationalise \: the \: denominator \\ = \frac{(2 {c}^{2} + c - 2)(c - 1)}{(c + 1)(c - 1)} \\ = \frac{(2 {c}^{3} - 2 {c}^{2} + {c}^{2} - c - 2c + 2) }{( {c}^{2} - {1}^{2} )} \\ = \frac{(2 {c}^{3} - {c}^{2} - 3c + 2 )}{( {c}^{2} - 1) } [/tex]

Answer:

70

Step-by-step explanation:

Let the no of books bought be x

The cost price of 1 book is 5x

No of the missing book is 15

The remaining book is x-15

The selling price of 1 book is 87

Selling price of (x-15) book is 87

Hence the number of books can be calculated as follows

8(x-15)-5x= 90

8x-120-5x= 90

8x-5x= 90+120

3x= 210

x= 210/3

= 70

Hence the number of books bought is 70

Answer:

12.5%

Step-by-step explanation:

big brain

Answer:

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

Sum of the first five numbers = 40

The sum of the six numbers should equal 9 x 6 = 54

So, you would do 54 - 40 = 14

Hope that helps! :)

-Aphrodite

Answer:

-1

Step-by-step explanation:

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