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mrs_skeptik [129]
3 years ago
8

Plzzzzzzzzz help me on this

Mathematics
2 answers:
pickupchik [31]3 years ago
6 0

Answer:

B . . . . . .. . ....... .......

Oxana [17]3 years ago
6 0

Answer:

is here a choice D? If there is, it must not be true

A, B, and C are true

A) 50<100

B) 60>30

C) 14>9

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complete the proof. give: EH and GI bisect each other. prove: triangle EFI is congruent to triangle HFG
qaws [65]
<span>A. 4. EFI = HFG 4. Vertical angles
5. EFI = HFG 5. SAS
is this it?</span>
5 0
3 years ago
Read 2 more answers
A set of N = 20 exam scores has a mean of m = 50. The instructor discovered that an error was made grading one exam, so 20 point
tatuchka [14]

Answer:

The new mean for the exam scores is 51

Step-by-step explanation:

the mean can be calculated using the formula

mean of scores = \frac{Sum total    of scores}{Number of students}

before the 20 points was added, the mean of the score was = 50.

Inserting this into the formula, we have:

50 = \frac{Sum total}{20 students}

from this, we can compute the sum total of the scores as

sum total = 50 × 20 = 1000

when the extra 20 marks is added, the sum of the entire scores will be changed to 1000 + 20 = 1020.

Hence the new mean will be computed as (New Sum total of scores / Number of students)

= \frac{1020}{20} = 51.

∴ The new mean of the scores is = 51

8 0
3 years ago
A scooter can travel 72 mi per gallon of gasoline and holds 2.3 gal. the function d(x)-72x represents the distance d(x), in mile
Natasha2012 [34]
The scooter can go 165.6 miles
7 0
3 years ago
How do I write this expression:The quantity seven plus Z, squared
Dmitry_Shevchenko [17]

Answer:

  (7+Z)²

Step-by-step explanation:

A less ambiguous way to describe the quantity might be "the square of the quantity seven plus Z".

As it is, we rely on the presence of the comma to tell us that the quantity to be squared is (7+Z). If the comma were not present, we would assume you want to add 7 to the square of Z: 7+Z².

  the quantity 7 plus Z: (7+Z)

  that quantity squared: (7+Z)²

6 0
3 years ago
Bob spends 30 hours in 4 weeks of gardening. How many hours does he garden in 5 weeks
Mademuasel [1]

Answer:

37.5 hrs

Step-by-step explanation:

You do cross multiplication hours on top and weeks on the bottom.

4 0
3 years ago
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