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nika2105 [10]
3 years ago
8

Create an expression without parentheses that is equivalent to 4(6x + x).

Mathematics
1 answer:
Vlad1618 [11]3 years ago
6 0
A possible answer can be found using the distributive property:

4(6x + x) becomes 24x + 4x, which can then be simply died to 28x.

Either off these solutions will work, as they are both expressions equal to the original expression.

Hope this helps!
You might be interested in
Andrew's math teacher entered the seventh grade students in a math competition there was an enrollment fee of $30 and also an $1
N76 [4]

Answer: 110

Step-by-step explanation:

Given;

Total cost C = $151

Enrollment fee E = $30

Charge per 10 test t = $11

n is the number of packet of test taken.

The questions can be represented by the equation below;

30 + 11n = 151

Substracting 30 from both sides.

11n = 151-30 = 121

n = 121/11

n = 11

Since the number of packet of test is 11 and each packet contains 10 tests. The number of test N is given by;

N = 10 n = 10 ×11 = 110

N = 110

5 0
3 years ago
An airline finds that 5% of the persons making reservations on a certain flight will not show up for the flight. If the airline
vivado [14]

Answer:

The answer to the question is;

The probability that a seat will be available for every person holding a reservation and planning to fly is 0.63307.

Step-by-step explanation:

Let the sample size =n = 100

The success probability = 5 % = 0.05

Number of tickets sold = 105 tickets

In the case where there the airline has found that 5 % will not show up, then every passenger should have  a seat, we have  

A Binomial distribution is appropriate where there is a chance for a certain number of successful outcomes from a number of independent trails

However n·p and n·q must be ≥ 5 for there to be a normal approximation of a Binomial distribution thus

n·p = 105×0.05 =  5.25 ≥ 5

and n·q = n(1 - p) = 105 (1 - 0.05) = 99.75 ≥ 5

As the requirements are met, we can proceed with the approximation of the Binomial distribution by the normal distribution

 z = \frac{x-np}{\sqrt{np(1-p)}  } = \frac{4.5 - 105*0.05}{\sqrt{105*0.05(1-0.05)} } =  - 0.3358

We therefore have P(x ≥ 5) = P( x > 4.5) = P(z > -0.34) = 1 - P(z < -0.34) = 1 -0.36693 = 0.63307

Another way to solve the question is as follows

p = 0.95 q = 0.05

μ = np = 0.95*105 = 99.75, σ = \sqrt{npq} = 2.233

P (x≤100) = P(z = P(z<0.34) = 0.63307.

6 0
3 years ago
What is the correct factorization of 2x² + 3x - 5?
sesenic [268]
Yea it’s B because I did the mathhhhhh
4 0
2 years ago
Use long division to find the quotient below.
Tems11 [23]

Answer:

Step-by-step explanation:

2

x

2

+

5

x

+

3

=

(

x

+

1

)

(

2

x

+

3

)

Explanation:

2

x

2

+

5

x

+

3

=

2

x

2

+

2

x

+

3

x

+

3

=

2

x

(

x

+

1

)

+

3

(

x

+

1

)

=

(

x

+

1

)

(

2

x

+

3

)

[Ans]

7 0
3 years ago
Help help help help me please
VladimirAG [237]

Starting at the origin means starting at (0,0)/ moving left 5 units means x will be -5, and moving up 2 units mean y will equal 2.

(-5,2)

8 0
3 years ago
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