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Black_prince [1.1K]
4 years ago
8

Add parentheses to make this equation true

Mathematics
1 answer:
liberstina [14]4 years ago
5 0
Idk for sure but that’s what I think

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Find the sum of the arithmetic series 28+28.4+...+42
stira [4]
23.6
Thyyhggghhhhnnnnn
8 0
4 years ago
5 biscuits cost 30p altogether how much do 7 biscuits cost?
andrezito [222]
First we want to find how much an individual biscuit costs. 
If 5 biscuits costs 30p, then  
5 x 1 biscuit = 30p 
divide both sides by 5
1 biscuit = 6p 

If one biscuit costs 6p, and we want to know how much 7 biscuits cost, then:

7 x  6p =42p

7 biscuits costs 42 p
6 0
3 years ago
A can in the shape of a cylinder has a diameter of 8 inches and a height of 10 inches. Which measurement is closest to the total
Alex

Answer:

Step-by-step explanation:

To find the total surface area of the cylinder

We get

S.A=2πr^2+2πrh

S.A=2×3.142×4×4+2×3.142×4×10

S. A=100.544inches sq+251.36inches sq

S. A=351.904inches sq

6 0
3 years ago
I need help please.
Lera25 [3.4K]

Answer:

135

Step-by-step explanation:

first of all, the units is meters, because that is what they are asking for and have written down in the diagram.

second, to find the perimeter you must add up the values of all the sides.

as shown by the diagram all of the sides are 27 each. and there is 5 sides.

you can add 27 to itself 5 times, or you could just do 27*5. =135.

7 0
3 years ago
PLEASE HELP and show work
s2008m [1.1K]

Answer:

1. -2, -4

2. 7, ½

3. -2, -3

Step-by-step explanation:

1) -x² - 6x - 8 = 0

x² + 6x + 8 = 0

x² + 4x + 2x + 8 = 0

x(x + 4) + 2(x + 4) = 0

(x + 2)(x + 4) = 0

x = -2 , -4

2) 2x² - 15x + 7

2x² - 14x - x + 7 = 0

2x(x - 7) - (x - 7) = 0

(2x - 1)(x - 7) = 0

x = ½, 7

3) 3x² + 15x + 18 = 0

x² + 5x + 6 = 0

x² + 3x + 2x + 6 = 0

x(x + 3) + 2(x + 3) = 0

(x + 3)(x + 2) = 0

x = -2, -3

6 0
3 years ago
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