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NNADVOKAT [17]
3 years ago
13

Will give brainliest worth 50 points also i need it done today pls

Mathematics
2 answers:
Elden [556K]3 years ago
6 0

Answer:

5/2

Step-by-step explanation:

we have X = -3x + 3

-3x +3= -2

3+2 = 3x

5= 3x

5/3 = x

Marianna [84]3 years ago
5 0

#1

18,11,4,-3...

Here

  • a=18
  • d=-7

\\ \sf\longmapsto a_n=a+(n-1)d

\\ \sf\longmapsto a_{32}

\\ \sf\longmapsto 18+31(-7)

\\ \sf\longmapsto 18-217

\\ \sf\longmapsto -199

#2

  • a=4
  • d=6

\\ \sf\longmapsto a_{24}

\\ \sf\longmapsto a+23d

\\ \sf\longmapsto 4+23(6)

\\ \sf\longmapsto 4+138

\\ \sf\longmapsto 142

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Ellie want to buy new shoes that is in sale for $80. She saved $60. How much more money does she need
mel-nik [20]

Answer:

$20

Step-by-step explanation:

New shoes = $80

What Ellie Saved = $60

80 - 60 = 20

To make sure this is correct simply add 20 to 60.

60 + 20 = 80

4 0
3 years ago
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A study of the checkout lines at the Safeway Supermarket in the South Strand area revealed that between 4 and 7 P.M. on weekdays
Dima020 [189]

Answer:

Step-by-step explanation:

Given that a study of the checkout lines at the Safeway Supermarket in the South Strand area revealed that between 4 and 7 P.M. on weekdays there is an average of four customers waiting in line.

Let X be the number of customers waiting in line

X is Poisson with parameter = 4

the probability that you visit Safeway today during this period and find:

a. No customers are waiting

P(X=0) = 0.018316

b. Four customers are waiting?

=P(x=4) =0.193567

c. Four or fewer are waiting?

=P(X\leq 4) = 0.628837

d. Four or more are waiting

=P(X\geq 4)=0.56653

8 0
3 years ago
Which is equivalent to 80%? Select two answers.
Rainbow [258]

Answer:

I think C.

Step-by-step explanation:

I hope this helps

5 0
2 years ago
A 10 foot ladder is leaning against a wall. Call x the distance from the top of the ladder to the ground, and call y the distanc
liq [111]

-5.3\:\text{ft/s}

Step-by-step explanation:

We start by applying the Pythagorean theorem to the ladder, with its length L as the hypotenuse:

L^2 = 100\:\text{ft}^2 = x^2 + y^2

where x is the vertical distance from the top of the ladder to the ground and y is the horizontal distance from the bottom of the ladder to the wall. Taking the derivative of the above expression with respect to time, we get

0 = 2x\dfrac{dx}{dt} + 2y\dfrac{dy}{dt}

Solving for dx/dt, we get

\dfrac{dx}{dt} = -\left(\dfrac{y}{x}\right)\dfrac{dy}{dt} = -\left(\dfrac{\sqrt{L^2 - x^2}}{x}\right)\dfrac{dy}{dt}

We know that

\dfrac{dy}{dt} = 4\:\text{ft/s}

when x = 6 ft. So the rate at which the top of the ladder is going down is

\dfrac{dx}{dt} = -\left(\dfrac{\sqrt{100\:\text{ft}^2 - (6\:\text{ft})^2}}{6\:\text{ft}}\right)(4\:\text{ft/s})

\:\:\:\:\:\:\:= -5.3\:\text{ft/s}

The negative sign means that the distance x is decreasing as y is increasing.

5 0
3 years ago
Find y................
Shalnov [3]

Answer:

y = 3

Step-by-step explanation:

Given the above right angled triangle, we would use a trigonometric ratio formula to find y.

Given angle = 30°

Hypotenuse = 6

Opposite side = y

Solve for y using the trigonometric ratio formula as follows:

sin(X) = \frac{opposite}{hypotenuse}

sin(30) = \frac{y}{6}

Multiply both sides by 6

sin(30)*6 = \frac{y}{6}*6

0.5*6 = y

3 = y

y = 3

6 0
3 years ago
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