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Ahat [919]
3 years ago
14

The standard normal distribution has a mean of and a standard deviation of

Mathematics
1 answer:
Anna007 [38]3 years ago
3 0

The standard normal distribution has a mean of 0 and a standard deviation of 1

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Emilio throws a marshmallow into the air from his balcony. The height of the marshmallow (in feet) is represented by the equatio
irinina [24]

Answer:

Step-by-step explanation:

The height of the marshmallow (in feet) is represented by the equation h=−16t2+8t+48,

where t is the time (in seconds) after he throws the marshmallow.

The equation is a quadratic equation. When the marshmallow hits the ground, its height from the ground will be zero. Therefore

−16t^2+8t+48 = 0

- 2t^2 + t + 6 = 0

Multiplying through by the negative sign. It becomes

2t^2 - t - 6 = 0

2t^2 + 3t - 4t - 6 = 0

t(2t + 3) - 2(2t + 3) = 0

(t - 2)(2t + 3) = 0

t - 2 = 0 or 2t + 3 = 0

t = 2 or t = - 3/2

The time cannot be negative

So it will take 2 seconds to hit the ground

4 0
3 years ago
Someone plz help me
baherus [9]

Answer:

1.benchmark fractions

2. equivalent fractions

Step-by-step explanation:

Hope it helps!

5 0
3 years ago
Read 2 more answers
Find the second of two consecutive integers if the second is 13 less than twice the first.
emmasim [6.3K]
What is the range in which the integers can be in? I cannot fully answer this question. But I think there could be more than one answer. One answer would be the first is 36 and the second is 66.

Hope this helps!
Can u plz mark me as brainliest? I really need it!
4 0
2 years ago
QUESTION 29
Shalnov [3]

The sum of the set of x - values given to us is calculated as; ∑X = -1

<h3>How to find the the sum of a set of data?</h3>

We are given;

X1 = 2, X2 = -8, X3 = 4, X4 = -8 and Y1 = -3, Y2 = -8, Y3 = 10, Y4 = 6

1) ∑X = X1 + X2 + X3 + X4

∑X = 2 + (-8) + 4 + 1 = -1

2) ∑Y = Y1 + Y2 + Y3 + Y4

∑Y = 3 + (-8) + 10 + 6

∑Y = -11

3) ∑ X² = X₁² + X₂² + X₃² + X₄²

∑X² = (2)² + (-8)² + (4)² + (1)²

∑X² = 85

4) ∑Y² = Y₁² + Y₂² + Y₃² + Y₄²

∑X² = (-3)² + (-8)² + (10)² + (6)²

∑X² = 209

Complete question is;

Two variables, X and Y assume the values X1 = 2, X2 = -5, X3 = 4, X4 = 1 and Y1 = -3, Y2 = -8, Y3 = 10, Y4 = 6, respectively. Calculate (a) ∑X, (b) ∑ Y, (c) ∑ X² (d) ∑ Y²

Read more about Sum of data at; brainly.com/question/15858152

#SPJ1

6 0
2 years ago
Jake had 23 apple he game 9 to his ex girlfriend and he devide the rest into 2 bros how many do he have left
grigory [225]

Answer:X×2+9=23

Step-by-step explanation:2x+9=23

2x=23-9

=14

X=14/2

=7( he gave to his bros)

But since he gave all the apples to his ex and brothers he probably doesn't have any left

Mark me as Brainliest if I'm right (though I doubt it )

3 0
2 years ago
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