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Sauron [17]
2 years ago
11

Solve the equation for x. If necessary round to the nearest tenth. x² = 17 X= +

Mathematics
1 answer:
Ilya [14]2 years ago
7 0

Answer:

x = 4.1 & x = −4.1

Step-by-step explanation:

x^2 = 17\\

x  =  ±√17

x  =  √17,  −√17

x = 4.1 & x = −4.1

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So, we divide 1200 by 25 to find out how many words per minute he types. 1200 / 25 = 48 So, he types 48 words per minute. Now, we multiply this by 45 to find out how many words he can type in 45 minutes. 48 x 45 = 2,160 Joseph can type 2,160 words in 45 minutes!
8 0
3 years ago
The tens digit of a two-digit number is twice the units digit. If the digits are reversed, the new number is 36 less than the or
Ludmilka [50]
Try this solution:
let the unknown two-digits number be 'xy'.
Then it is possible to write any two-digit number as 10x+y, where x - the tens digit and y - the unit digit.
Using the rule described above the phrase 'the tens digit of a number is twice the units digit' may be written as x=2y.
Using the same rule the phrase 'if the digits are reversed, the new number is 36 is less than the original number' may be written as (10x+y)-(10y+x)=36.
These two equations may be resolved as system of two equations:
\left \{ {{x=2y} \atop {10x+y-(10y+x)=36}} \right. \ =\ \textgreater \  \  \left \{ {{x=8} \atop {y=4}} \right.
Check: the original number is 84, the new number is 48; difference is 84-48=36.

answer: 84
7 0
3 years ago
Malia is planting tomato and pepper plants in her garden each tomato plant t requires 6 square feet and each pepper plant p requ
Misha Larkins [42]

4p + 6t ≤ 150 inequality represents this situation

<h3><u>Solution:</u></h3>

Given that,

tomato plant is represented by "t"

pepper plant is represented by "p"

Malia's garden has an area of 150 square feet

Given that each tomato plant "t" requires 6 square feet of space

<em><u>So, the area required to plant "t" tomato plants</u></em>:

= t x ( Area required by 1 tomato plant)  = t x ( 6 sq ft)  = 6t

Each pepper plant p requires 4 square feet of space

<em><u>So, the area required to plant p pepper plants   </u></em>

= p x ( Area required by 1  pepper plant)   = p x ( 4 sq ft)  = 4p

Given that total area of garden = 150 square feet

area of "p" pepper plants + area of "t" tomato plants = 4p + 6t

<em><u>So, now according to the question: </u></em>

The area occupied by both plants must be less than or equal to total area of garden

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Thus inequality is found

5 0
3 years ago
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Llana [10]
So first 4x12 then divide that by 7
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2 years ago
100 POINTS Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match the systems of equations
OLEGan [10]

Answer:

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Step-by-step explanation:

4th

6 0
2 years ago
Read 2 more answers
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