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2 years ago

Solve the equation X+2=10-x

Mathematics

1 answer:

Dafna1 [17]2 years ago

4 0

Answer: $x=4$

Step-by-step explanation:

$x+2=10-x$

$x+2-2=10-x-2$

$x=-x+8$ $x+x=-x+8+x$

$2x=8$

$\frac{2x}{2}=\frac{8}{2}$

$x=4$

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According to a study conducted in one city, 35% of adults in the city have credit card debts more than $2.000. A simple random s

BabaBlast [244]

Answer:

Binomial; \mu p=87.5, \sigma p=7.542

Step-by-step explanation:

a distribution is said be a binomial distribution iff

The probability of success of that event( let it be p) is same for every trial
each trial should have 2 outcome : p or (1-p) i.e, success or failure only.
there are fixed number of trials (n)
the trials are independent

here, the trials are obviously independent ( because, one person's debt doesn't influence the other person's)

here n=250

the probability of success(0.35) is same for every trial

(35/100=0.35 is the required p here)

$\mu_{p} =n*p=250*\frac{35}{100} =250*0.35=87.5$

[since, the formula for $\mu _{p} =n*p$ ]

$\sigma _{p} =\sqrt{n*(p)*(1-p)} = \sqrt{250*0.35*(1-0.35)} = 7.542 ( approximately)$

[since, the formula for [tex]\sigma _{p} =\sqrt{n*(p)*(1-p)}

therefore, it is Binomial; \mu p=87.5, \sigma p=7.542

4 0

3 years ago

Solve the following inequalities 7 x minus 5 / 8 x + 3 >4<br>

olchik [2.2K]

Answer:

$x> \frac{8}{51}$

Step-by-step explanation:

$7x - \frac{5}{8} x + 3>4$

Bring constants to one side, simplify:

$\frac{51}{8} x>4 - 3 \\ \frac{51}{8} x>1 \\ x>1 \div \frac{51}{8} \\ x>1 \times \frac{8}{51} \\ x> \frac{8}{51}$

*Note that the inequality sign only changes when you divide the whole inequality by a negative number.

7 0

3 years ago

Read 2 more answers

What is 150% of 200. Show work. ASAP

zalisa [80]

150 % of 200

150 / 100 = 1.5

1.5 * 200 = 300

hope this helps!.

8 0

3 years ago

Read 2 more answers

Determine the surface area of the cylinder below.

Dahasolnce [82]

Answer:

Step-by-step explanation:

We will need calculate the area of the top, the base and sides.

Area of the top=πr²

Area of the base=πr²

Area of the side: 2πrh

Surface area of a cylinder: area of the top + area of the base +area of the side

Surface area of a cylinder=πr²+πr²+2πrh=2πr²+2πrh=2πr(r+h)

Data:

r=1.5 m

h=1.5 m

Surface area of this cylinder=2π(1.5m)(1.5 m+1.5 m)=3π m*(3 m)=9π m².

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2 years ago

Find the volume of the described solid s

Serga [27]

Answer:lol it’s 697

Step-by-step explanation: it could be

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2 years ago