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4 years ago

The difference between a number x and 16 is 21

Mathematics

1 answer:

Sveta_85 [38]4 years ago

7 0

Answer:

x-16=21

Step-by-step explanation:

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Solve. Good luck! Please do not try to google this.

Elena L [17]

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$\frac{(x - 1)(x + 2)}{3x(2x - 1)} = \frac{2\sqrt{2x} + 3x^{2}}{2}$
$3x(2x - 1)(2\sqrt{2x} + 3x^{2}) = 2(x + 2)(x - 1)$
$3x(2x(2\sqrt{2x} + 3x^{2}) - 1(2\sqrt{2x} + 3x^{2}) = 2(x(x - 1) + 2(x - 1))$
$3x(2x(2\sqrt{2x}) + 2x(3x^{2}) - 1(2\sqrt{2x}) - 1(3x^{2})) = 2(x(x) - x(1) + 2(x) - 2(1)$
$3x(4x\sqrt{2x} + 6x^{3} - 2\sqrt{2x} - 3x^{2}) = 2(x^{2} - x + 2x - 2)$
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5 0

4 years ago

Given a = -3 and b= 4 and c=-5, evaluate atb C -1/5 O 1/5 0 -7/5

stiv31 [10]

Answer:

I got - 5 as an answer.

I don't think I made a mistake.

Please if you find any error, contact me in the comment section.

Step-by-step explanation:

$a = -3 , b= 4 ,c= - 5\\(a+b)c\\(-3+4)-5\\(1)*(-5)\\Answer = -5$

8 0

3 years ago

at a store 6 pounds of seed cost 157.38.if a farmer needed 5 pounds of seeds how much would it cost him?

blsea [12.9K]

Answer:

131.15

Step-by-step explanation:

157.38÷6=B
B×5=A

B= 26.23

A= 131.15

4 0

3 years ago

Help please i dont understand i will give brainiest

Rudiy27

Answer:

Step-by-step explanation:

The volume of prism is (1/2)(5)(3/2)=15/4 or 3 3/4

Number of cubes is given by (the volume of prism)/(volume of half unit cube)=(15/4)/(1/8)=30

3 0

3 years ago

Assume the readings on thermometers are normally distributed with a mean of 0degreesC and a standard deviation of 1.00degreesC.

Molodets [167]

Answer:

0.0549 is the probability that the thermometer reads between -2.22 and -1.49.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 0 degrees

Standard Deviation, σ = 1 degrees

We are given that the distribution of readings on thermometers is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(thermometer reads between -2.22 and -1.49)

$P(-2.22 \leq x \leq -1.49) = P(\displaystyle\frac{-2.22 - 0}{1} \leq z \leq \displaystyle\frac{-1.49-0}{1}) = P(-2.22 \leq z \leq -1.49)\\\\= P(z \leq -1.49) - P(z < -2.22)\\= 0.0681 - 0.0132 = 0.0549$

0.0549 is the probability that the thermometer reads between -2.22 and -1.49.

8 0

3 years ago