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bulgar [2K]
3 years ago
13

Plz help me to find the number of the coordinate plane and thank you

Mathematics
1 answer:
12345 [234]3 years ago
8 0

Answer:

mhm

Step-by-step explanation:

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150 pounds shared into the ratio of 4:1
V125BC [204]

\begin{cases}x+y=150\smallskip\\\dfrac{x}{y}=\dfrac{4}{1}\end{cases}\Leftrightarrow\begin{cases}x+y=150\smallskip\\x=4y\end{cases}\Leftrightarrow\begin{cases}5y=150\smallskip\\x=4y\end{cases}\Leftrightarrow\begin{cases}y=30\smallskip\\x=120\end{cases}

150=120+30

4 0
3 years ago
What is the slope of a line perpendicular to line AB when point A is (3,-4) point B is (-5,1).
Veronika [31]
Slope = (1 + 4) / (-5 -3) = 5/-8 = -5/8

answer
-5/8
5 0
3 years ago
16x^2-16x=5 solve the equation by completing the square
Ivanshal [37]

This is your answer: x= -1/4 or x=5/4. Plze mark me brainiest:)

7 0
3 years ago
Explain why 3(5x) does not equal to (3 times 5)(3times x)
Anit [1.1K]

Answer:

Because 3(5x) is the same as 3 *5 * x

Step-by-step explanation:

When a number is next to another in parantheses, it signifies multiplication. In this case, we already have 5 and x grouped together by a multiplication sign, so the entire thing is 5 * x. The statement below is key

Distribution in multiplication is only possible if a variable is grouped to another real number by a plus or minus sign.

So in this case, we have 3 * 5 * x, which is 15x. However, if we had 3(5 + x), we would have 15 (3 * 5) + 3x (3 * x).

Hopefully that makes sense!

7 0
3 years ago
4. What's the area of the above figure, which has sides of length 6 and 8?
ANTONII [103]

Answer:

48

Step-by-step explanation:

To get the area of anything you multiply the width by the length.

6×8=48

4 0
3 years ago
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