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masha68 [24]
3 years ago
12

Uhm helppp??????? :p

Mathematics
2 answers:
larisa [96]3 years ago
7 0
Round the fraction or moved number and then subtract
Anit [1.1K]3 years ago
3 0

Answer:

Estimating the difference of fractions and mixed numbers is similar to estimating sums. Round each fraction or mixed number and then subtract to find the estimate.

Step-by-step explanation:

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A science teacher gives a test with 15 questions. This teacher is a hard grader. The teacher assigns points in the following man
ASHA 777 [7]

Answer:  The standard deviation was calculated incorrectly.

Step-by-step explanation:

  • The standard deviation measures the dispersion of the data values from the mean value.

It cannot be negative , because it is the square root of the variance .

We add all squared deviations from the data points away from the mean and (then divide it by the number of data values) to evaluate variance.

Since , any squared number cannot give a negative result.

⇒ Standard deviation cannot be negative.

⇒The standard deviation was calculated incorrectly.

Rest other things (given in options) can not be interpreted on the basis of given information.

6 0
2 years ago
Pls help its for my final
ASHA 777 [7]
3.16227766017 because I did the math and yea I think that’s correct
7 0
2 years ago
Read 2 more answers
PLEASE HELP ILL GIVE BRAINLIEST<br> PLEASE SHOW WORK I WAS STUCK ON THIS ONE
wariber [46]

Answer:

Your answer is $19.26

Step-by-step explanation:

I did the math

8 0
2 years ago
Read 2 more answers
What is one way to revise for word choice?
VikaD [51]

Answer:

It's C, REVIEW THE EVALUATIVE MODIFIERS

Step-by-step explanation:


5 0
3 years ago
The 2 main support rods for a barbeque grill are each 7.5 cm from the centre of the
sukhopar [10]

Answer:

  58.1 cm

Step-by-step explanation:

The length of each support rod can be found using the Pythagorean theorem. The geometry can be modeled by a right triangle, such that the distance from centre is one leg and half the length of the rod is the other leg of a triangle with hypotenuse equal to the radius of the grill.

__

<h3>Pythagorean theorem</h3>

The theorem tells us that the sum of the squares of the legs of a right triangle is the square of the hypotenuse. For legs a, b and hypotenuse c, this is ...

  c² = a² +b²

<h3>application</h3>

For the geometry of the grill, we can define a=7.5 and c=30. Then b will be half the length of the support rod.

  30² = 7.5 +b²

  b² = 900 -56.25 = 843.75

  b = √843.75 ≈ 29.0473

The length of each support rod is twice this value, so ...

  rod length = 2b = 2(29.0473) = 58.0947

Each support rod is about 58.1 cm long.

7 0
1 year ago
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