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Bingel [31]
3 years ago
8

A statement that is true both forwards and backwards is called a?

Mathematics
2 answers:
wel3 years ago
8 0
A statement that is true both forwards and backwards. That is the original statement<span> and its converse are </span>both true<span>.</span>
spin [16.1K]3 years ago
6 0
A Bi-Conditional Statement - <span>A statement that is true both forwards and backwards. That is the original statement and its converse are both true</span>- 
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The professor of a business statistics class wanted to find out the average amount of time per week her students spent studying
zhenek [66]

Answer:

Cluster sample

Step-by-step explanation:

This is an example of a cluster sample. In a cluster sample, the examiner divides the population into groups (each one of these groups is called a cluster) and once the examiner has these clusters, takes one of them and recollects the data from ALL the members of that cluster. In this case, the teacher divided the class in 3 different groups and then selects one of these groups and asks the average amount of time per week he/she spent studying.

6 0
3 years ago
HELP PLEASE BE QUICK
In-s [12.5K]

Answer: it equals 20

Step-by-step explanation:

10 x 20 = 120, hoped this helped.

3 0
3 years ago
Read 2 more answers
Nadia says the hypotenuse of this right triangle has a length of 73 because the Pythagorean theorem states that (28 + 45) square
Vaselesa [24]

Answer:

Third answer (she is incorrect because she should have squared each leg length and then found the sum.)

Step-by-step explanation:

The pythagorean theorem states that a²+b²=c². This is not equivalent to (a+b)²=c² (due to FOIL expansion, this expands to a²+2ab+b²=c²).

This matches with the third answer, as she has to do a² and b≥ separately.

**This question involves expanding perfect squares, which you may wish to revise. I'm always happy to help!

6 0
3 years ago
I bought a box of granola bars at the store that has a volume of 210 cubic centimeters
Naya [18.7K]

Answer:

a and c

Step-by-step explanation:

The volume (V) of a cuboid is

V = lwh ( l is length, w is width, h is height )

The volume is given as 210 cm³

Check each of the dimensions given to determine which give the correct volume

a

V = 15 × 2 × 7 = 210 ← correct volume

b

V = 14 × 3 × 7 = 294 ← incorrect volume

c

V = 7 × 3 × 10 = 210 ← correct volume

Hence a and c  could be the dimensions of the box


6 0
3 years ago
Read 2 more answers
Helppppppppp meeeeeeeee
zavuch27 [327]
Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. remember KFC: keep, change, flip.

a/b ÷ c/d *use KFC* = a*d/b*c
=ad/ bc

2/7 ÷ 4/5 = 2/7*5/4
=10/28
(simplify)
=5/14
5 0
3 years ago
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