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RideAnS [48]
3 years ago
14

Helppppp!!!!!!!!!!!! Which of the following number sentences models the Associative Property of Multiplication?

Mathematics
2 answers:
grigory [225]3 years ago
8 0

Answer:

b

Step-by-step explanation:

because I learned this like 4 years ago

Jlenok [28]2 years ago
3 0

Answer:

Ahh I think A

Step-by-step explanation:

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Based on the sample of n = 25 healthy-weight students, can you conclude that healthy-weight students eat significantly fewer fat
Elis [28]

Answer:

z = -1.645

Step-by-step explanation:

b) n =25, M = 4.01 , \mu = 4.22 , \sigma = 0.60 , \alpha= 0.05

The hypothesis are given by,

H0 : \mu\geq 4.22 v/s H1 : \mu < 4.22

The test statistic is given by,

Check attachment for the formula that should br here.

z = \frac{4.01- 4.22 }{0.60 /\sqrt{25}}

= -1.75

The critical value of z = -1.645

The calculated value z > The critical value of z

Hence we reject null hypothesis.

The healthy-weight students eat significantly fewer fatty, sugary snacks than the overall population.

8 0
3 years ago
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(4p2 - 5p - 4) + (5p2 - 4-2p)​
Rasek [7]

Answer:

9p^2 - 7p - 8

Hope this helps! Can I have BRAINLIEST please?

5 0
3 years ago
Read 2 more answers
Helooo please help me​
dolphi86 [110]
AB and AB’ are congruent
BC and B’C are congruent
All angles are congruent to the original angles
7 0
2 years ago
The sum of the measures of the external angles of any polygon is
Leona [35]

Answer:

The sum of all the exterior angles in a polygon is equal to 360 degrees.

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3 0
3 years ago
Find the value of 1415×211 Although these numbers aren't quite as nice as the ones from the example, the procedure is the same,
BabaBlast [244]

Answer:

298565

Step-by-step explanation:

Given problem,

1415 × 211

∵ Direct multiplication is quite tough so we can split the number into smaller one for making the multiplication easier,

= (1400 + 15) × (210 + 1)

By using distributive property,

= 1400 × (210 + 1) + 15(210 + 1)

Again by distributive property,

= 1400 × 210 + 1400 + 15 × 210 + 15

Simplifying,

=  294000 + 1400 + 3150 + 15

= 298565

Hence, 1415 × 211 = 298565

9 0
3 years ago
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