help me please please help me please please help me please please help me please please help me please please1

Mathematics

2 answers:

scoray [572]3 years ago

8 0

Hi hello how are you

grandymaker [24]3 years ago

6 0

My answer for you is to study :)

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Write a decimal subtraction problem that requires regrouping to solve. then solve the problem

Svetach [21]

For example, think about 8.4 - 2.9.

You have to regroup because you can't subract 4 - 9.
4 turns into a 14 since you borrow from the left number, 8.
8 turns into a 7 after that.
Now, you have to subtract 14 - 9 and 7 - 2. You're answer is 5.5.
You can check your work by doing inverse opperations:
By adding:
5.5 + 2.9 = 8.4
Or by subracting 8.4 - 5.5 = 2.9

Hope this helped you! If you need a better explaination or another example, I will be happy to help you! :)

5 0

4 years ago

PLEASEEE HELP MEEEE!!!

Romashka [77]

Use substitution

From second equation:-

x = 13 - 5y, Substitute for x in the first eqaution:

(13 - 5y)^2 + y^2 = 13

169 -130y + 25y^2 + y^2 - 13 = 0

26y^2 - 130y + 156 = 0

26(y^2 - 5y + 6) = 0

26(y - 3)(y - 2) = 0

y = 2 , y = 3

From the second equation when y = 2, x = 13 - 5(2) = 3

and when y = 3, x = 13 - 5(3) = -2

So the solution is [3, 2} and {-2, 3}

4 0

4 years ago

5x – 7(x + 1) > –9+3

Bezzdna [24]

Answer:

x < (-0.5)

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask

5 0

3 years ago

Help me answer this please. Jdjfj

Lubov Fominskaja [6]

First, find the area of the large rectangle (25*18=450) then find the area of the small square (7.5^2=56.25) finally subtract the small square from the large rectangle

3 0

4 years ago

Faith and Shawna are shopping for shirts. The available styles are short sleeve (s), tank top (t), and long sleeve (L). they mak

Alexxx [7]

Answer:

The number of ways of selection of 3 items taking 2 at a time in addition to the possible ways in which each girl selects the same style is 9 different ways. Since the list contains 9 different ways in which each of them can select a style, the list is complete.

Step-by-step explanation:

Here we have the number of ways the available styles can be arranged between each girl is given by the number of permutation of 3 items, taking two at a time plus the number of possible selections where both of them select the same style as follows

We note that the formula for permutation is

$_n$ P $_r$ = $\frac{n!}{(n-r)!}$