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3 years ago

Please helppppppppppppp

Mathematics

1 answer:

8090 [49]3 years ago

5 0

Answer:

C and E

Step-by-step explanation:

The variable "y" has to be by itself so here is the breakdown to that:

-3x + 6y + 5 = - 7

6y + 6 = 3x - 7

6y = 3x - 7 - 6

6y = 3x - 12

6y/6 = 3x/6 - 12/6

y = 1/2 x - 2

Then you would graph -2 --> (0, -2) and use 1/2 to navigate upwards to get your answers.

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Y more than 5 Translate the phrase into an algebraic expression

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Answer:

y+5

Step-by-step explanation:

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3 years ago

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Tonya's homework assignment has four problems a, b, c, d. Her teacher instructed her to simplify each expression and then find out its value. The value of a is 3/28, the value of b is 1/2, the value of c is 15/56 and the value of d is 1/15.

Each problem has two fractions. They are given below and should be simplified.

a) 2/7 × 3/8 = 1/7 × 3/4 = 3/28

b) 2/3 × 3/4 = 1/1 × 1/2 = 1/2

c) 3/7 × 5/8 = 15/56

d) 3/10 × 2/9 = 1/5 × 1/3 = 1/15

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2 years ago

Rewrite 1/10,000 to the power of ten

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Answer:

10^4

Step-by-step explanation:

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2 years ago

Based on data collected 5 years ago, a hotel expects that 24% of all guests will request smoking rooms. The hotel suspects that

9966 [12]

Answer:

The calculated value Z = 2.3084 > 1.96 at 5% level of significance

Null hypothesis is rejected

Alternative hypothesis is accepted

The hotel does not expects that 24% of all guests will request smoking rooms

Step-by-step explanation:

Step(i):-

Given the hotel takes a random sample of 223 guests. Out of this sample, 39 guests requested smoking rooms.

Sample proportion

p = x/n = 39/223 = 0.174

Given Population proportion 'P' = 0.24

Given random sample size 'n' = 223

Level of significance ∝ =0.05

The critical value Z₀.₀₅ = 1.96

Null Hypothesis (H₀) : P=0.24

Alternative Hypothesis (H₁) : P≠ 0.24

Step(ii):-

Test statistic

$Z = \frac{p-P}{\sqrt{\frac{PQ}{n} } }$

$Z = \frac{0.174-0.24}{\sqrt{\frac{0.24 X 0.76}{223} } }$

|Z| = | -2.3084|= 2.3084

The calculated value Z = 2.3084 > 1.96 at 5% level of significance

Null hypothesis is rejected

Alternative hypothesis is accepted

The hotel does not expects that 24% of all guests will request smoking rooms

7 0

3 years ago

Quadrilateral MNQP has vertices as shown. If the figure is translated 4 units left and 3 units down, what are the coordinates of

PilotLPTM [1.2K]

<h3>Answer: (-3, 0)</h3>

Explanation:

Point N is at (1,3)

We apply the rule $(x,y) \to (x-4,y-3)$ which will translate the point 4 units to the left and 3 units down.

The old x coordinate x = 1 becomes x-4 = 1-4 = -3

The old y coordinate y = 3 becomes y-3 = 3-3 = 0

The point N(1,3) moves to N ' (-3, 0)

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3 years ago