All categories

3 years ago

Please help me and use laws of exponents

Mathematics

1 answer:

fredd [130]3 years ago

6 0

Answer:

5^2x ÷ 5^-3 = 5⁵(5×5×5×5×5)

5^2x ÷ 1/5³(5×5×5) = 3125

5^2x ÷ 1/125 = 3125

5^2 × 4 = 3125

125

5⁸(5×5×5×5×5×5×5×5) = 3125

125

390625 = 3125

125

so the value X is = 4

You might be interested in

Hay everyone um i don't have many friends bc i just join today

ella [17]

Answer:

np u can be my friend just comment ur discord account

7 0

3 years ago

Read 2 more answers

The floor of a round hut has a diameter of 6 meters. What is the floor's area? Use 3.14 for pi.

storchak [24]

Area is 28.26 meters

3 0

3 years ago

the width of a rectangle is 12 cm less than the length the perimeter is 156 cm. Find the with and length

mamaluj [8]

We know that the perimeter of a rectangle is twice the length, plus twice the width.

P = 2L + 2W

We also know that the perimeter is 156.

P = 156

Finally, we know that the width is 12 less than the length.

W = L - 12.

The next thing that we do is substitute the information that we have into the original equation:

P = 2L + 2W

156 = 2L + 2(L - 12)

From this point we start to solve

156 = 2L + 2L - 24 <---we multiplied the '2' through the parenthesis

156 + 24 = 2L + 2L - 24 + 24

180 = 2L + 2L <--- getting like terms on same sides

180 = 4L <---combining like terms

180/4 = 4L/4 <--- getting like terms on same sides

45 = L <---now we have a value for L

Now we take the known value for L and substitute it in to our equation for W

W = L - 12

W = 45 - 12

W = 33

So now we have Length = 45 and Width = 33.

6 0

3 years ago

Read 2 more answers

Steve and Marcia bought soda, chips, and gum. • They bought twice as many chips as pieces of gum. • They bought 3 fewer sodas th

serg [7]

Answer:

ok so S=soda C=chips and G=gum

Step-by-step explanation:

From the information,

s+3=c

(1/2)c=g

from this P=s+c+g

P=s+(s+3)+((s+3)/2)

P=5/2s+9/2

7 0

3 years ago

Making handcrafted pottery usually takes two major steps:wheel throwing and firing. The time of wheel throwing and thetime of fi

levacccp [35]

Answer:

a) $P(R$

And we can find this probability using the normal standard table or excel and we got:

$P(z$

b) $P(R>110)=P(\frac{R-\mu}{\sigma}>\frac{110-\mu}{\sigma})=P(Z>\frac{110-100}{3.606})=P(Z>2.774)$

And we can find this probability using the complement rule and the normal standard table or excel and we got:

$P(z>2.774)=1-P(Z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Part a

Let X the random variable that represent the time for the step 1 and Y the time for the step 2, we define the random variable R= X+Y for the total time and the distribution for R assuming independence between X and Y is:

$R \sim N(40+60 = 100,\sqrt{2^2 +3^2}= 3.606 s)$