All categories

2 years ago

Is x =4 a solution of the equation 13=2x + 4? A.yes B.no

Mathematics

2 answers:

Harman [31]2 years ago

8 0

No, it is not. If you plug 4 into the equation in the place of x, you get 13=2(4)+4

13=8+4

13=12

It equals 12, not 13.

Alex_Xolod [135]2 years ago

6 0

Answer:

Step-by-step explanation:

Because If You Do 2 x 4 you get 8 and 8 + 4 = 12 and not 13 so the answer is 4.5 because 4.5 x 2 = 9 and 9 + 4 = 13

You might be interested in

Factor 18x^3+24x^2-21x-28

maks197457 [2]

Hello my name is Jeff (sorry)

8 0

3 years ago

Simplify the given expression below: (4+2i)-(1–7i)

emmasim [6.3K]

Answer:

3 + 9i

Step-by-step explanation:

(4 + 2i) - (1 - 7i)

distribute the (-)

(4 + 2i) - 1 + 7i

combine like terms

3 + 9i

4 0

3 years ago

How do we write ordered pairs?

kvv77 [185]

Answer:

find the x and y values

Step-by-step explanation:

Ordered pairs are often used to represent two variables. we write (x, y) The number which corresponds to the value of x is called the x-coordinate and the number which corresponds to the value of y is called the y-coordinate.

Hope this helps

7 0

2 years ago

The variables x and y vary inversely. When y is 725, x is 20. What is x when y is 50?

Ipatiy [6.2K]

I think it is 2.5 but not sure correct me if i am wrong

6 0

3 years ago

Read 2 more answers

The weight distribution of parcels sent in a certain manner is normal with mean value 17 lb and standard deviation 3.3 lb. The p

Yakvenalex [24]

Answer: The value of c would be 26.514 lb.

Step-by-step explanation:

Since we have given that

Mean = 17 lb

Standard deviation = 3.3 lb

At 99% level of significance, z = 2.58

So, it becomes,

$Z=\dfrac{X-\mu}{\sigma}\\\\2.58=\dfrac{X-17}{3.3}\\\\2.58\times 3.3=X-17\\\\8.514+17=X\\\\X=25.514$

So, the weight c would be

$c=25.514+1\\\\c=26.514$

Hence, the value of c would be 26.514 lb.

7 0

3 years ago