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S_A_V [24]
3 years ago
14

Simplify -7 + [5 + (-12)÷3]

Mathematics
2 answers:
kotykmax [81]3 years ago
8 0
-7 + 1
Use Bidmas/Bodmas to understand that you need to work out the brackets first
Therefore -7 + 1 = -6
Eva8 [605]3 years ago
4 0

Answer:

-6

Step-by-step explanation:

-7 + [5 + (-12)÷3]    Divide in the brackets first

-7 + [5 - 4]              Subtract in the brackets next

-7 + 1                      Add the two numbers

-6

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Solve the equation for all real solutions in simplest form.<br> 3x2 - 12x + 11 = x
Ivanshal [37]

Answer:

(13 + or - (sign) square root(37)) / 6

Step-by-step explanation:

First search up the quadratic formula which is

x = (- b + or - square root(b^2 - 4ac)) / 2a

and to find a, b, and c you need this formula

ax^2 + bx + c = 0 (btw this is the safest solution to finding your answer with a number in-front of a quadratic equation.)

Math:

a = 3, b = -13, c = 11

b = -13, because of the x on the other end of the equation as the equation above "ax^2 + bx + c = 0" you need the zero to proceed to this next step.

Side Note: You only take the number and not the variable, variables are x, y, w, z, or etc.

(- (- 13) + or - square root((-13)^2 - 4(3)(11) ) ) / 2 * 3

13 + or - square root(37) / 6

5 0
3 years ago
8.5cm squared = ...mm squared?<br><br> Please explain clearly
tekilochka [14]
1 centimeter = 10 milimeters.
Therefore, 8.5 centimeters squared = 85 millimeters squared.
6 0
4 years ago
A cable on a crane measures 89 yards 2 feet. How much total cable would be on 14 identical cranes? Convert the answer to larger
babymother [125]

we know that  

1 yard=3 feet

Multiply (89 yards 2 feet) by 14

(89 yards 2 feet)*14=89*14 yards 2*14 feet-------> 1,246 yards 28 feet

convert 28 feet to yards

28 ft=(28/3) yards=9.33 yards

9.33 yards=9 yards+0.33 yards

0.33 yards=1 foot

so

9.33 yards=9 yards+1 foot

substitute

1,246 yards 28 feet=1,246 yards +9 yards+1 foot----->1,255  yards + 1 foot

therefore

<u>the answer is the option</u>

C. 1,255 yards 1 foot

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Answer:

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Step-by-step explanation:

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Sphinxa [80]

Answer:

The ans is 5004300

In standard form,

5004300. Five Millon four thousand and three hundred.

(hope that helped can i plz have brainlist it wil make my day :D hehe)

Step-by-step explanation:

7 0
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