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2 years ago

13

What is the value of x 1/5×-2/3y=30 when y=15

1 answer:

Alinara [238K]2 years ago

3 0

Equation.
1/5 x - 2/3 y = 30

y= 15

Substitution.
1/5 x - 2/3 (15) = 30

1/5 x - 10 = 30

1/5 x = 30 + 10

1/5 x = 40

x = 200.

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Identify the type of function represented by each graph

mario62 [17]

Answer:

13. Linear Function

12. Absolute Value Function

11. Quadratic Function

10. Constant and Linear Function

Step-by-step explanation:

13. This graph is in Slope-Intercept Form, $y = mx + b$ . The equation of this line is $y = x + 1$ .

12. This graph obviously is an Absolute Value graph because it is in the shape of a "V".

11. This graph is in the shape of a parabola, so it is considered "Quadratic".

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I am joyous to assist you anytime.

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2 years ago

An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 130lb and 1

Vlad [161]

Answer: 0.4758

Step-by-step explanation:

Given : Mean : $\mu=137\text{ lb}$

Standard deviation : $\sigma =28.9\text{ lb}$

Also, the new population of pilots has normally distributed .

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x=130 lb .

$z=\dfrac{130-137}{28.9}=-0.2422145\approx-0.24$

For x=171lb.

$z=\dfrac{171-137}{28.9}=1.1764705\approx1.18$

The p-value = $P(-0.24$

$=0.8809999-0.4051651=0.4758348\approx0.4758348\approx0.4758$

Hence, the required probability : 0.4758

6 0

2 years ago

Help me pleaseeeeeee

castortr0y [4]

Use the fomula a_(n)= a_(1)+ d(n-1)

4 0

2 years ago

Help please thank you giving 15 pts

slega [8]

Answer:

x=22

Step-by-step explanation:

2x-40+8x=180

10x=220

x=22

8 0

2 years ago

Read 2 more answers

1. Each person has a 75% probability of going to the Chess Tahoe restaurant. a. You randomly select 8 people. What is the probab

Ipatiy [6.2K]

Step-by-step explanation:

75%

selected=8

=8-5=3

=75/100×3

=3/4×3

=9/4

=2 1/4

5 0

2 years ago