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castortr0y [4]
3 years ago
12

144-120x+25x² help me​

Mathematics
1 answer:
34kurt3 years ago
7 0

Answer:

144 - 120x + 25 {x}^{2}  \\ 144 - 95 {x}^{3}

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PLZ HELP ASAP!!
Lilit [14]

The measure of first angle is 34 degrees and measure of second angle is 56 degrees

<em><u>Solution:</u></em>

Given that, the exterior sides of two adjacent angles make a right angle

Therefore, these adjacent angles forms 90 degrees

Let the second angle be "x"

The first angle has a measure that is six more than half the second

Therefore,

first angle = 6 + half of "x"

\text{ first angle } = 6 + \frac{x}{2}

Since these two angles forms 90 degrees,

first angle + second angle = 90

x + 6 + \frac{x}{2} = 90\\\\\frac{2x + 12 + x}{2} = 90\\\\2x + 12+x = 180\\\\3x + 12 = 180\\\\3x = 180 - 12\\\\3x = 168\\\\x = 56

<em><u>Therefore, first angle is:</u></em>

\rightarrow 6 + \frac{56}{2} = 6 + 28 = 34

Thus measure of first angle is 34 degrees and measure of second angle is 56 degrees

6 0
3 years ago
A triangle has an area of 10 square feet. The height is 5 feet. What is the length of the base (in feet)?
Nady [450]

Answer:

4 ft

Step-by-step explanation:

A=\frac{1}{2} bh

A=10 h=5

10=\frac{1}{2} b(5)\\

20=5b (multiply both sides by 2)

4=b (divide by 5)

7 0
3 years ago
I need help with number 33!!!
sveta [45]

Area of Big Rectangle                                     Area of Small Rectangle

A = L x w                                                           A = L x w

 = (25 + 2w)(10 + 2w)                                           = 25 x 10

 =   250 + 50w + 20w + 4w²                               = 250

       Big - Small  

74 = 250 + 70w + 4w² - 250

74 = 4w² + 70w

0 = 4w² + 70w - 74

   = 2(2w² + 35w - 37)

  = 2[2w² -2w  |  +37w - 37]

  = 2[2w(w - 1) |  +1(w - 1)]

  = 2(2w + 1)(w - 1)

0 = 2                                   0 = 2w + 1                                     0 = w - 1

FALSE so disregard          w = -1/2                                         w = 1

                                         NEGATIVE so disregard

Answer: 1 meter

5 0
3 years ago
What was the original price if: after increasing by 60% it became $8a?
Morgarella [4.7K]
I think it’s 5......I think
3 0
3 years ago
Read 2 more answers
Do you agree? Explain why or why not.
Lelu [443]

Answer:

if x = 4

\sqrt{8 + 1} + 3 = 0

\sqrt{9} + 3 = 0

3 + 3 = 0

6 = 0

wrong.

6 0
2 years ago
Read 2 more answers
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