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MrRissso [65]
3 years ago
12

A box contains 7 black pencils and 28 blue onew what is the ratio between the black and blue pens

Mathematics
1 answer:
Ivenika [448]3 years ago
6 0

Answer:

1 : 4

Step-by-step explanation:

7 black : 28 blue = 7/28 ---> reduces to 1/4 ---> 1 : 4

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Please help and thank you
Lorico [155]

Answer:

B. g(x) = (x + 4)²

Step-by-step explanation:

f(x) = x²

And since graph g(x) is f(x) moved 4 points along x-axis and to the right,

g(x) will be equal to (x + 4)²

g(x) = (x + 4)²

4 0
3 years ago
12
weeeeeb [17]

Answer:

2x + y = -4

Step-by-step explanation:

standard form of equation of straight line is

ax+by = c

that  is terms containing x and y should be  on LHS and constant term should be  on RHS

______________________________________________

Given equation

y + 1 = - 2x - 3

lets bring -2x on LHS ,

add 2x on lHS and RHS

y + 1  + 2x = - 2x - 3 + 2x

=> y + 1  + 2x = -3

on lHS, 1 is there which constant term lets bring it on RHS

subtract 1 from both sides

y + 1  + 2x  - 1= -3 -1

y + 2x = -4

rearranging it

2x + y = -4  (Answer)

8 0
3 years ago
Calculate the surface area of a solid box in the shape of a cube with side length 6cm.
eduard

Answer:

216 cm^2

Step-by-step explanation:

A cube has 6 congruent, square faces.

Each face has side length of 6 cm.

The total surface area is the sum of the surface areas of the 6 faces, but since all faces are congruent, the total surface area is

SA = 6s^2

where s = side length

SA = 6 * (6 cm)^2

SA = 6 * 36 cm^2

SA = 216 cm^2

3 0
2 years ago
Factor completely x2 − 49. (1 point) (x − 7)(x − 7) (x + 7)(x − 7) (x + 7)(x + 7) Prime
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Answer:

(x + 7)(x - 7)

8 0
3 years ago
Which of the following numbers is irrational?
andrew-mc [135]

Answer:

D

Step-by-step explanation: always remember that sign as irrational

7 0
2 years ago
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