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max2010maxim [7]
4 years ago
5

In the expression 7³ - 4 · 3 +8, the first operation is? A. An Exponent B. Subtraction C. Multiplication D. Addition

Mathematics
1 answer:
Vikki [24]4 years ago
6 0

Answer:

An exponent

Step-by-step explanation:

look at PEM/DA/S

Parenthesis

EXPONENTS

and then you can stop the first operation is 7^3

this is an exponent

(also brainliest if this helped please!)

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The total weight of 30 bags of flour and 4 bags of sugar is 42.6 kg. If each bag of sugar weighs 0.75 kg, what is the weight of
tigry1 [53]
30 bags of flour + 4 bags of sugar = 42.6 kg
each bag of sugar weighs 0.75 kg
each bag of flour weighs x kg = ?

If you would like to know what is the weight of each bag of flour, you can calculate this using the following steps:

30 * x + 4 * 0.75 kg = 42.6 kg
30 * x + 3 kg = 42.6 kg
30 * x = 42.6 kg - 3 kg
30 * x = 39.6 kg   /30
x = 39.6 kg / 30
x = 1.32 kg

Result: Each bag of flour weighs 1.32 kg.
4 0
3 years ago
Read 2 more answers
The perimeter
inessss [21]

Answer:

width is 198

Step-by-step explanation:

60=2(114+b)

60=228+2b

2b= 168

b or W is 198.

6 0
3 years ago
Please help me with ALL the questions ASAP!!!!!
Anna71 [15]
1. The perimeter is 56.
? 2. B. area of the floor.
? 3. C. 6 square centimeters.
4. 324 square feet
5. 290 square centimeters

The ? means an estimated guess, sorry if I get it wrong.

Hope this helps! :)
3 0
4 years ago
Lesson 6.2: applications of linear systems this is holding me back from completing the course. Please help me guys and girls.
nordsb [41]

Answer:

see explanation

Step-by-step explanation:

When x = 5 then x > 3 , thus

f(5) = - 1

When x = 3 then x ≤ 3 , thus

f(3) = - 2x + 2 = - 2(3) + 2 = - 6 + 2 = - 4

-----------------------------------------------------------

When x = - 4 then - 4 ≤ x ≤ 1 , thus

f(- 4) = 2

When x = 3 then x > 1 , thus

f(3) = - x + 1 = - 3 + 1 = - 2

4 0
3 years ago
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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!
irina1246 [14]

5x^3 - 4x + 1 = 0 \\\\5x^3-5x+x+1=0\\\\5x(x^2-1)+1(x+1)=0\\\\5x(x+1)(x-1)+1(x+1)=0\\\\(x+1)(5x(x-1)+1)=0\\\\(x+1)(5x^2-5x+1)=0\\\\x=-1\\\\5x^2-5x+1=0\\\\\Delta=(-5)^2-4\cdot5\cdot1=25-20=5

\Delta>0 therefore there exist two real solutions.

In total, there are 3 real roots. But, real roots are also complex roots (doesn't work the other way round!), so there are 3 complex roots.

8 0
3 years ago
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