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Readme [11.4K]
2 years ago
8

Help me please with common core!!

Mathematics
2 answers:
Karolina [17]2 years ago
6 0

You're question is:

- 0.35 - (-0.25)

Note that two negatives = one positive

-0.35 - (-0.25) = -0.35 + 0.25

Combine. Subtract.

-0.35 + 0.25 = 0.25 - 0.35

0.25 - 0.35 = - 0.1

-0.1 is your answer

hope this helps

d1i1m1o1n [39]2 years ago
3 0

Ok, common core is hard. I grew up and graduated without it, so if it's ok, I'm just going to show you how to do it without common core.......


The first way you can do it is:.....

So, we can see that there is a negative sign right in front of the parenthesis there.... There is also a negative sign in front of -0.25. Because of this, it's a rule of thumb that we can automatically get rid of both of those negative signs and make them positive

So, your new equation should look like -0.35 + 0.25

When we add it all together, we get -0.1


The second way you can do it is by foiling. So as I'm sure you know, when there isn't a number by a negative sign, we automatically assume it's one. So when we add a 1 behind the only negative sign that doesn't have a number, we can do -1 * -0.25 = 0.25

Then, like before, our equation turns out the same: -0.35+0.25 = -0.1

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Which binomial is a factor of 49x2 + 84 xy + 36y2?
bezimeni [28]

Answer:

(7x+6y) is a binomial factor of the given expression  49x^2+84xy+36y^2

Therefore  49x^2+84xy+36y^2=(7x+6y)(7x+6y)

Step-by-step explanation:

Given expression is 49x^2+84xy+36y^2

To find the binomial factor :

49x^2+84xy+36y^2

Rewritting the above expression as

=7^2x^2+2(7)(6)xy+6^2y^2

=(7x)^2+2(7x)(6y)+(6y)^2

=(7x+6y)^2 ( using the formula =(a+b)^2=a^2+2ab+b^2 here a=7x and y=6y )

=(7x+6y)(7x+6y) ( using the formula =(a+b)^2=(a+b)(a+b) )

Therefore  49x^2+84xy+36y^2=(7x+6y)(7x+6y)

(7x+6y) is a binomial factor of the given expression  49x^2+84xy+36y^2

7 0
3 years ago
Whats 95 divided by 8 in long division
faust18 [17]
95 divided by 8=11.875
3 0
3 years ago
Read 2 more answers
A circle has a diameter of 20 inches and a central angle AOB that measures 160°. What is the length of the intercepted arc AB? U
juin [17]
Calculate the circumference of the full circle:

circumference = PI x diameter = 3.14 x 20 = 62.8 inches
 the arc length is 160 degrees of the full circle

divide 160 by 360 (full circle) and multiply by the circumference:

160/360 x 62.8 = 27.9 inches

5 0
3 years ago
Each line represents a proportional relationship. Write an equation for each line. Show your work.
tiny-mole [99]

Answer:

The equation of line a is y = x

The equation of line b is y =  \frac{2}{3} x

Step-by-step explanation:

The equation of the proportional is y = m x, where

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The rule of the slope of a line is m = \frac{y2-y1}{x2-x1} , where

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∵ Line a passes through points (0, 0) and (3, 3)

∴ x1 = 0 and y1 = 0

∴ x2 = 3 and y2 = 3

→ Substitute them in the rule of the slope above

∵ m = \frac{3-0}{3-0}=\frac{3}{3}

∴ m = 1

→ Substitute in the form of the equation above

∴ y = (1)x

∴ y = x

∴ The equation of line a is y = x

∵ Line b passes through points (0, 0) and (3, 2)

∴ x1 = 0 and y1 = 0

∴ x2 = 3 and y2 = 2

→ Substitute them in the rule of the slope above

∵ m = \frac{2-0}{3-0}=\frac{2}{3}

∴ m = \frac{2}{3}

→ Substitute in the form of the equation above

∴ y = (\frac{2}{3}) x

∴ y =  \frac{2}{3} x

∴ The equation of line b is y =  \frac{2}{3} x

7 0
2 years ago
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Katena32 [7]
A. 8 HOPE THIS IS CORRECT!
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3 years ago
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