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3 years ago

Use three different values of n to demonstrate that 2n + 3n is equivalent to 5n.

2 answers:

5 0

You could use 10, 6 and 7.

Using ten would have them all equal 50, using 6 would have them all equal 30 and using 7 would have them all equal 35.

Hope this helps!

Colt1911 [192]3 years ago

5 0

You can use 10, 5, or 20
If N=10 substitute n with 10, and it should look like this: 2(10)+3(10)= 5(10)
^ ^ ^
20+30 =50
Do that to the rest of the numbers in order to substitute N.

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Number 7 ;( I wish I was good at math

Setler79 [48]

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3 years ago

What value of m makes the equation 8am/4a5=2a6 true?

skelet666 [1.2K]

Answer:

m = 11

Step-by-step explanation:

11 - 5 = 6

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3 years ago

AC=A, C, equals <br> Round your answer to the nearest hundredth.

DanielleElmas [232]

Answer:

We have the equation A*C = A

Now, as both sides of the equality are the same thing, we can do the same operation to both sides and the equality will remain true.

We can divide both sides by A and get:

(A*C)/A = A/A

C = 1

So here we finded the value of A.

If A and C are matrices, then C is the identity matrix.

8 0

3 years ago

Help me in math tasks please

Ivan

Answer:

1. 3/5 c

2. 7 c

3. 2/5 b

4. $3.24 c

5. -3.2 b

Step-by-step explanation:

2/5 + 1/5 = 3/5

a negative + a negative = a positive

2+5 = 7

terminating means the decimal ends. When u divide a & c they keep on going but 2/5 ends

divide 16.8 by 5.19 = 3.23 round up so 3.24

multiply the two together to get the answer

3 0

3 years ago

Delicious Candy markets a two-pound box of assorted chocolates. Because of imperfections in the candy making equipment, the actu

nikitadnepr [17]

Answer:

a. $f(x)= 1.25\ \ \ \ , \ for \ 31.8\leq x\leq 32.6$

$b. \ P(X=32)=0\\P(X>32.3)=0.375\\P(X$

c. No. Delicious Candy isn't violating any government regulations

Step-by-step explanation:

-A uniform distribution is given by the formula:

$f(x)=\frac{1}{b-a} \ \ \ for \ \ \ a\leq x\leq b$

#we substitute our values in the formula above to determine the distribution:

$f(x)=\frac{1}{b-a}\\\\=\frac{1}{32.6-31.8}\\\\=1.25\\\\\therefore f(x)=1.25, \ \ \ 31.8\leq x\leq 32.6$

Hence, the probability density function for the box's weight is given as: $f(x)=1.25, \ \ \ 31.8\leq x\leq 32.6$

b. The probability of the box's weight being exactly 32 ounces is obtained by integrating f(x) over a=b=32:

$f(x)=1.25, \ \ \ a\leq x\leq b\\\\=\int\limits^{32}_{32} {1.25} \, dx \\\\\\=[1.25x]\limits^{32}_{32}\\\\\\=1.25[32.0-32.0]\\\\\\=0$

Hence, the probability that a box weighs exactly 32 ounces is 0.000

ii.The probability that a box weighs more than 32.3 is obtained by integrating f(x) over the limits 32.3 to 32.6 :

$f(x)=1.25, \ \ \ a\leq x\leq b\\\\=\int\limits^{32.6}_{32.3} {1.25} \, dx \\\\\\=[1.25x]\limits^{32.6}_{32.3}\\\\\\=1.25[32.6-32.3]\\\\\\=0.375$

Hence, the probability that a box weighs more than 32.3 ounces is 0.3750

iii. The probability that a box weighs less than 31.8 is 0.000 since the weight limits are $31.8\leq x\leq 32.6$ .

-Any value above or below these limits have a probability of 0.000

c. Let 32 ounces be the government's stated weight.

$1.25(32.6-32)=0.75\\\\0.75>0.60$

Hence, Delicious Candy isn't violating any government's regulations.

8 0

3 years ago