MATHEMATICS MIDDLE SCHOOL

Anica says that she can rewrite ANY subtraction problem as an addition problem. Is she correct? Explain how you know!

Answers

Answer 1
Answer: I think it’s true because of family pyramids or whatever they’re called. Like 6-2=4 can be rewritten as 4+2=6 or 2+4=6 if that makes sense :))
Answer 2
Answer: yeah i think so because
5-2=3
3+2=3
?

70-20=50
50+20=70
idek

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What number is exactly divisible by 9

Answers

45, 90, 27, are all numbers dividible by 9
9, 18, 27....basically anything that is multiplied by 9

Suppose you have a large coffee can full of pennies. How can you estimate how much money that can contains without counting all the coins?

Answers

if you know how much a penny weighs then you can weigh any amount of pennies and take that weight and divide by the weight of one penny, to get how many there are without counting all the coins.

What are the possible rational zeros of f(x) = x^4 - 4x^3 + 9x^2 + 5x + 14

Answers

Answer:

The possible zeros are 1  2 7 14

-(14)/(3),-(7)/(3),-(2)/(3),-(1)/(3),(1)/(3),(2)/(3),(7)/(3),(14)/(3)

Miguel completed the division problem below. What is Miguel’s error?A.He included a 5 in the quotient, which does not belong.
B.He multiplied the divisor by 10 and the dividend by 100.
C.He subtracted 208 from 234 incorrectly.
D.He multiplied the divisor by 100 and the dividend by 10.
down there is a jpg

Answers

Answer:

he need to add one more zero to 7540

Step-by-step explanation:
He needs to add another zero at the end of 7540

The function f is defined by f(x) = (x + 3)(x + 1).The graph of f in the xy-plane is a parabola. Which
of the following intervals contains the x-coordinate
of the vertex of the graph of f?

Answers

Answer:

Below in bold.

Step-by-step explanation:

The  zeroes ( = x-intercepts) are x = -3 and x = -1.

So the x -coordinate of the vertex is between x = -3 and x = -1.

The actual x-coordinate is halfway between these value: at x = -2.

Answer:

x = -3 or x = -1

Step-by-step explanation:

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

⇒ x = -3 or x = -1

Tara wrote the expression 7 times D plus 4 in her notebook she used the associative or community or distributive party to right the equality expression 7D plus 28

Answers

Answer:

distributive property

Step-by-step explanation:
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