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3 years ago

Find the slope of the line. Please hurry I need the answer ASAP

Mathematics

2 answers:

lilavasa [31]3 years ago

7 0

the right choice is d 4/3

MAVERICK [17]3 years ago

6 0

The formula is rise/run how far it goes up is you top number and how far it goes across is you bottom number
Answer=3/4

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An art history professor assigns letter grades on a test according to the following scheme.A: Top 5% of scoresB: Scores below th

adoni [48]

Answer:

Grade B score:

$76 \leq x \leq 89$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 73.3

Standard Deviation, σ = 9.7

We are given that the distribution of score on test is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

B: Scores below the top 5% and above the bottom 62%

We have to find the value of x such that the probability is 0.62

$P( X > x) = P( z > \displaystyle\frac{x - 73.3}{9.7})=0.62$

$= 1 -P( z \leq \displaystyle\frac{x - 73.3}{9.7})=0.62$

$=P( z \leq \displaystyle\frac{x - 73.3}{9.7})=0.38$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 73.3}{9.7} = 0.305\\\\x = 76.26$

We have to find the value of x such that the probability is 0.05

$P(X < 0.95) = \\\\P( X < x) = P( z < \displaystyle\frac{x - 73.3}{9.7})=0.95$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 73.3}{9.7} = 1.645\\\\x = 89.26$

Thus, the numerical value of score to achieve grade B is

$76 \leq x \leq 89$

7 0

3 years ago

Madison wants to buy a new iPhone. The regular price is $989. Apple is offering a 15% discount and a sales tax of 7% is added af

Rzqust [24]

Answer: $899.50

Step-by-step explanation:

6 0

2 years ago

If (2x,3y) =(8, 9),find x and y

solong [7]

Answer:

x = 4, y = 3

Step-by-step explanation:

Equating corresponding coordinates , gives

2x = 8 ( divide both sides by 2 )

x = 4

and

3y = 9 ( divide both sides by 3 )

y = 3

5 0

2 years ago

Name 2 decimals whose sum is in between 0.5 and 0.6

Natalija [7]

Answer:

0.24 + 0.32 =0.56

Step-by-step explanation:

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4 0

2 years ago

Read 2 more answers

A lawn is in the shape of a right angled triangle. the lengths of the 2 shorter sides are

Sedbober [7]

Answer:

x=5 ; Area= 84m²

Step-by-step explanation:

(x+2)²+(4x+2)²=(5x)²

x²+4+4x+16x²+16+32x=25x²

8x²-36x-20x=0

x=5;x=-1

hypotenuse should be positive

x=5

area=lxb/2

6 0

2 years ago