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swat32
3 years ago
9

URGENT WILL MARK BRAINLIEST​

Mathematics
2 answers:
Simora [160]3 years ago
7 0
A) 1/3
b) 9
.............
lord [1]3 years ago
6 0

Answer:

a) 1/3

b) 9

Step-by-step explanation:

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Using traditional methods, it takes 94 hours to receive a basic driving license. A new license training method using Computer Ai
natita [175]

Answer: the value of the test statistic is 2.11

Step-by-step explanation:

Given that;

sample mean x" = 95

standard deviation σ = 3

sample size n = 40

Null hypothesis H₀ : μ = 94

Alternative hypothesis H₁ : μ ≠ 94

Level of significance ∝ = 0.02

Test statistic value

z = (x" - μ) / ( σ/√n)

we substitute

z = (95 - 94) / ( 3/√40)

z = 1 / 0.4743

z = 2.11

Therefore, the value of the test statistic is 2.11

8 0
3 years ago
HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Genrish500 [490]

Answer:

Well, I don't know how to graph it for you, but the slope is -2/3 and the point is (-9, 5).  So, when you graph it, from the point (-9, 5), you can go 3 units to the right and 2 units down.

6 0
3 years ago
The function h(t) = −16t2 + 18t models the height, in feet, reached by a leopard t seconds after it jumps. What is the approxima
S_A_V [24]

9514 1404 393

Answer:

  5 1/16 ft

Step-by-step explanation:

  h(t) = -16t(t -18/16) . . . . put in intercept form

The function describes a parabola that opens downward. It has zeros at t=0 and t=9/8. The maximum height will be found at the vertex of the parabola, halfway between these zeros.

  f(9/16) = (-16)(9/16)² +18(9/16) = 81/16 = 5 1/16 . . . . feet

The approximate maximum height of the leopard is 5 1/16 feet.

5 0
3 years ago
2 A square window in Miranda's
Tems11 [23]
Perimeter is , or around 63.89 in.
If you meant that the area was 225 in²:
Perimeter is 60 in
8 0
2 years ago
8x=-4(x+3)<br> I would really appreciate some help
olganol [36]

Answer:

x = -1

Step-by-step explanation:

8x = - 4(x + 3)

8x = -4x - 12

+4x  +4x

<u>12x = -12</u>

12       12

x = -1

  • Remember, a negative times a positive equals a negative
  • Remember, a negative divided by a positive equals a negative

Hope this helps you!!! :)

4 0
3 years ago
Read 2 more answers
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