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2 years ago

Tell which property the statement x+14=14+x illustrates.

Mathematics

1 answer:

Naddik [55]2 years ago

8 0

Answer:associative property of addition

Step-by-step explanation:The associative property of addition says that changing the grouping of the addends does not change the sum.

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50 POINTS AND I WILL MARK BRAINLIEST Find the volume please help

ANEK [815]

Answer:348

Step-by-step explanation:

For composite prisms, where the bases are a composite shape, the area of the bases is the sum of the areas of the parts it is made of. The volume of the composite prism is then given by multiplying the whole base area by the height of the prism.In math, volume is the amount of space in a certain 3D object. For instance, a fish tank has 3 feet in length, 1 foot in width and two feet in height. To find the volume, you multiply length times width times height, which is 3x1x2, which equals six. So the volume of the fish tank is 6 cubic feet.

8 0

3 years ago

Read 2 more answers

What are the angles A, B, and C

Step2247 [10]

Answer:

a=acute angle b=acute angle to i think

Step-by-step explanation:

5 0

3 years ago

the number is less than 190,000 and greater than 180,000, 5000 more than the number has 187 thousands, 200 less than the number

jarptica [38.1K]

187000-5000=182000
182400+200=182600
The number is 182,600

5 0

3 years ago

consider a politician discussion group consisting of eight Democrats three Republicans and seven Independents suppose that two g

Pavel [41]

Answer:

(38.8%...7/10), than (47%...8/17) I didnt know if u needrd it in fraction or percent.

Step-by-step explanation:

You want to first add up everyone. So in total there are 18 people.

There is than a 38.8% chance that a independent will be picked first. 7/18.

But since one person was picked already you have to subtract 1 person from the total, so now its out of 17.

There is now a 47% chance that a democrat will be picked next. 8/17.

4 0

3 years ago

The fracture toughness (in ) of a particular steel alloy is known to be normally distributed with a mean of 28.3 and a standard

Effectus [21]

This is a conditional probability question.

The conditional probability is given as follows: The probability of an event A given B is given by

$P(A|B)= \frac{P(A\cap B)}{P(B)}$

Thus, given that the fracture toughness of a particular steel alloy is known to be normally distributed with a mean of 28.3 and a standard deviation of 0.77.

The probability that the fracture toughness will be between 29 and 40.3 given that the <span>fracture toughness is at least 27 is given by

$P(29 \leq X \leq 40.3 \, | \, X \geq 27)= \frac{P(29 \leq X \leq 40.3)\cap P(X \geq 27)}{P(X \geq 27)} \\ \\ =\frac{P(29 \leq X \leq 40.3)}{P(X \geq 27)}$

$P(29 \leq X \leq 40.3)=P\left(z \ \textless \ \frac{40.3-28.3}{0.77}\right)- P\left(z \ \textless \ \frac{29-28.3}{0.77}\right) \\ \\ =P(z\ \textless \ 15.58)-P(z\ \textless \ 0.91)=1-0.81835=0.18165$

$P(X \geq 27)=1-P(x\ \textless \ 27) \\ \\ =1-P\left(z\ \textless \ \frac{27-28.3}{0.77}\right)=1-P(z\ \textless \ -1.688) \\ \\ =1-0.04568=0.95432$

Thus, </span>the probability that the fracture toughness will be between 29 and 40.3 given that the <span>fracture toughness is at least 27 is given by</span>

$\frac{P(29 \leq X \leq 40.3)}{P(X \geq 27)}= \frac{0.18165}{0.95432} =\bold{0.1903}$

6 0

3 years ago