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oksian1 [2.3K]
3 years ago
9

12-3 (2w+1)=7w-3 (7+w)

Mathematics
2 answers:
alina1380 [7]3 years ago
8 0
12-3(2w+1)=7w-3(7+w)\\\\
12-6w-3=7w-21-3w\\\\
-6w-7w+3w=-21-12+3\\\\
-10w=-30\ \ \ |Divided\ by\ -10\\\\
w=3\\\\ \textbf{Answer\ is\ w=3.}
n200080 [17]3 years ago
3 0
12-3(2w+1)=7w-3(7+w) \\ \\ 12-6w-3=7w-21-3w \\ \\ 9-6w=4w-21 \\ \\ -6w-4w=-21-9 \\ \\ -10w=-30 \\ \\ \boxed{x=\frac{-30}{-10}=3}
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What's the table plz help
Veronika [31]
If you mean what goes in the blanks, it is 5 for the first empty box and 10 for the second empty box. 
8 0
3 years ago
Read 2 more answers
A function f defined by f(x) = x² + px + q is such that f(3) = 6 and f¹(3) = 0. Find the value of q.
CaHeK987 [17]

Answer:

q = 15

Step-by-step explanation:

Given

f(x) = x² + px + q , then

f(3) = 3² + 3p + q = 6 , that is

9 + 3p + q = 6 ( subtract 9 from both sides )

3p + q = - 3 → (1)

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

f'(x) = 2x + p , then

f'(3) = 2(3) + p = 0, that is

6 + p = 0 ( subtract 6 from both sides )

p = - 6

Substitute p = - 6 into (1)

3(- 6) + q = - 3

- 18 + q = - 3 ( add 18 to both sides )

q = 15

5 0
3 years ago
An ice chest contains six cans of apple​ juice, eight cans of grape​ juice, four cans of orange​ juice, and two cans of mango ju
Katena32 [7]
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Please I need help!!
telo118 [61]

The regression equation which correctly models the data in this table is y = 1.49x - 107.5,

<h3>How to determine the regression equation?</h3>

From the table of data values, we have the following parameters:

∑x = 632

∑y = 404

∑x² = 80.142

∑xy = 51.448

Mathematically, the regression equation is represented by the following slope equation:

y = Bx + A

Next, we would determine A by using this expression:

A = (∑y·∑x² - ∑x·∑xy)/(n∑x² - (∑x)²)

A = (404×80,142 - 632×51,448)/(5×∑x² - (632)²)

A = (32,377,368 - 32,515136)/(5×80142 - 399,424)

A = -137,768/1286

A = 107.5

For B, we have:

B = (n∑xy· - ∑x·∑y)/(n∑x² - (∑x)²)

B = (5×51,448 - 632×404)/(5×∑x² - (632)²)

B = 1.49.

y = Bx + A

y = 1.49x - 107.5

Read more about regression equation here: brainly.com/question/28037520

#SPJ1

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2 years ago
Find the sum of the arithmetic series 11+20+29+...+407
Assoli18 [71]
The Answer is 467
Hops this helps
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3 years ago
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