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ziro4ka [17]
3 years ago
13

Who can help me out with this question please

Mathematics
1 answer:
lapo4ka [179]3 years ago
7 0

There are 14 total marbles

8 red

6 blue

Hopefully that helps answer your question some

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Solve by completing the square: x2+4x-5=0
Sidana [21]

Answer:

The solutions are {-5, 1}

Step-by-step explanation:

Next time, please use the symbol " ^ " to denote exponentiation:

x^2+4x-5=0

Start by identifying the coefficient of the x term (it is 4 here).  Divide this by 2, resulting in 2.  Square this result (square 2), obtaining 4.

Now add this 4 after the 4x term, and then subtract this 4:

x^2+4x  +4  - 4  -5=0

Rewrite x^2+4x + 4 as (x + 2)²:

(x + 2)² - 9 = 0

Add 9 to both sides, to isolate (x + 2):

(x + 2)²  = 9

Take the square root of both sides:

x + 2 = ±3

Solve for x:  x = -2 + 3, or 1

                    x = -2 - 3, or -5

The solutions are {-5, 1}

3 0
4 years ago
Start at (5, 4). Move 5 units east, 4 units south, 4 units west, 4 units north, and 1 unit west.
9966 [12]

Answer:

d) (5,4)

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
On a coordinate grid, both point (−4, −1) and (2, 6) points are reflected across the y-axis. What are the coordinates of the ref
ella [17]

Answer:

option 4

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ) , then

(- 4, - 1 ) → (4, - 1 )

(2, 6 ) → (- 2, 6 )

8 0
3 years ago
5+15x=5( ) I'm not writing 20 characters
kompoz [17]

Answer:

(1 + 3x).

Step-by-step explanation:

We have to evaluate the missing term within the brackets in the following equation.

The equation is, 5 + 15x = 5(?)

Now, 5 + 15x

= 5 × 1 + 5 × 3x {We have to factorize the term where 5 is a factor}

= 5(1 + 3x) {This is reverse of the distributive property of multiplication}

Therefore, the missing term within the brackets is (1 + 3x). (Answer)

6 0
3 years ago
Surface area of prisms need help ASAP I will give brainliest​
trasher [3.6K]

Step-by-step explanation:

A=2πr(r+h)

A=6.28×14mm(+29mm)

A=77.92(14mm+29mm)

A=77.92×43

A=3350.56 mm

Hope it helps

KC

6 0
2 years ago
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