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3 years ago

4 2/5 × 10 using distributive property

Mathematics

1 answer:

gladu [14]3 years ago

6 0

Answer 1 3/5 × 40=64

Step-by-step explanation:

4×2/5=1 3/5 4×10=40

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3 years ago

The "Middle School Eight" basketball conference has 8 teams. Every season, each team plays every other conference team twice (ho

MaRussiya [10]

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2 years ago

Determine if line AB is tangent to the circle.

Charra [1.4K]

Answer:

7) No

8) Yes

Step-by-step explanation:

Tangent lines are perpendicular to the radius lines at the point of intersection. So we just need to check if these are right triangles.

7) c² = a² + b²

20² = 12² + 14²

400 = 340

8) c² = a² + b²

13² = 7.8² + 10.4²

169 = 169

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3 years ago

It has been determined that 60% of the people in a certain midwest city who are responsible for preparing the evening meal have

natali 33 [55]

Answer:

Random sample, $np \geq 10$ and $n(1-p) \geq 10$ , so yes, both conditions were satisfied.

Step-by-step explanation:

60% of the people in a certain midwest city who are responsible for preparing the evening meal have no idea what they are going to prepare as late as 4PM in the afternoon.

This means that $p = 0.6$

A recent survey was conducted from 1000 of these individuals.

This means that $n = 1000$

Also, a random sample, so the first condition was satisfied.

The sample size must be large (so that at least 10 or more successes and failures).

$np = 1000*0.6 = 600 \geq 10$

$n(1-p) = 1000*0.4 = 400 \geq 10$

So yes, both conditions were met.

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3 years ago

Why does -6 - (-2) equal -4?

lukranit [14]

Answer:

when you subtract a negative number the two negative signs cancel out and it turns to a positive number

Step-by-step explanation:

in -6 - (-2)

the two - signs cancel out so it ends up being

-6+2 which is why it equals -4

8 0

3 years ago

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