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3 years ago

Need help with this question

Mathematics

1 answer:

Umnica [9.8K]3 years ago

3 0

Answer:

where is the question i cant see it

Step-by-step explanation:

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Three times a number w is less than 18. The inequality is

Alla [95]

Answer:

W<6

Step-by-step explanation:

3 times W

So 3W is less than < 18

Do 18 / 3 =6

3 0

3 years ago

in an isosceles triangle, the perimeter is 75 cm and one of the sides is 25 cm. Find all its sides. can you find all angles of t

stepan [7]

Answer:

all angles of the triangles is 60

Step-by-step explanation:

the perimeter = 2*side of an isosceles triangle + bottom edge

----> bottom edge = the perimeter - 2*side of an isosceles triangle =25

----> This is an equilateral triangle ----> all angles of the triangles is 60

8 0

2 years ago

What is the exponential form for 7^√x^3

Semenov [28]

Answer:

The exponential form of this would be (7x)^3/2

Step-by-step explanation:

The square root symbol is the same as writing raised to the 1/2. So we can rewrite the equation as:

[(7x)^1/2]^3

Then we can multiply the two exponents in this case giving us

(7x)^3/2

7 0

2 years ago

Read 2 more answers

The time required for an automotive center to complete an oil change service on an automobile approximately follows a normal di

umka21 [38]

Answer:

a) 36.9% of customers receive the service for half-price

b) The automotive center should make 21.28 minutes, the guaranteed time limit.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 19 minutes

Standard Deviation, σ = 3 minutes.

We are given that the distribution of time required is a bell shaped distribution that is a normal distribution.

Formula:

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

a) P(service will take no longer than 20 minutes)

P(x < 20)

$P( x < 20) = P( z < \displaystyle\frac{20 - 19}{3}) = P(z < 0.3334)$

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

$P(x < 20) = 0.631 = 63.1\%$

If it does take longer than 20 minutes, the customer will receive the service for half-price.

Customers receive the service for half-price

= $100\%-63.1\% = 36.9\%$

b) We have to find the value of x such that the probability is 0.77.

P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 19}{3})=0.77$

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

$P(z < 0.739) = 0.77$

$\displaystyle\frac{x - 19}{3} = 0.739\\x = 21.28$

Hence, the automotive center should make 21.28 minutes, the guaranteed time limit.

3 0

3 years ago

PLEASE HELP how many solutions does this equation have? 12+2x-8=7x+5-5x

slava [35]

Answer:

no solution

Step-by-step explanation:

STEP 1: Since x is on the right side of the equation, switch the sides so it is on the left side of the equation.

$7x+5-5x=12+2x-8$

STEP 2: Subtract 5x from 7x.

$2x+5=12+2x-8$

STEP 3: Subtract 8 from 12.

$2x+5=2x+4$

STEP 4: Move all terms containing x to the left side of the equation.

$5=4$

STEP 5: Since 5≠4, there are no solutions.

No solution

7 0

3 years ago