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mariarad [96]
3 years ago
7

Sara worked 40 hours per week

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
5 0
What is the question?
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Three people divide up a large pizza. If the first person gets half and the second person gets half as much as the first person
Eduardwww [97]
So, if the first person takes half of the pizza, half of the pizza is left.
If the second person takes half of the amount the first person took, that would be a quarter of the pizza left. 

TL;DR - There is 1/4 of the pizza left
7 0
3 years ago
A line contains the point (2 , 1) and has a slope of -2. What is the equation of the line?
gogolik [260]

Answer: y=-2x+5

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find a polynomial function of least degree having only real coefficients, a leading coefficient of 1, and roots of 2-√6 , 2+ √6
horsena [70]

Answer:

x^{4} -18x^{3}+104x^{2} -172x-100

Step-by-step explanation:

The 3 roots are given out of which 2 are real and 1 is imaginary. For a polynomial of least degree having real coefficients, it must have a complex conjugate root as the 4th root. Therefore, based on 4 roots, the least degree of polynomial will be 4. Finding the polynomial having leading coefficient=1 and solving it based on multiplication of 2 quadratic polynomials, we get:  

\\\\x_{1} = 2-\sqrt{6} \\x_{2} = 2+\sqrt{6} \\x_{3}=7-i \\x_{4}=7+i \\\\P(x)=1(x-x_{1})(x-x_{2} )(x-x_{3} )(x-x_{4} ) \\\\=(x-(2-\sqrt{6}))(  x-(2+\sqrt{6} )) (x-(7-i))( x-(7+i))\\=((x-2)+\sqrt{6})( ( x-2)-\sqrt{6} ) ((x-7)+i)( (x-7)-i)\\=((x-2)^{2} -(\sqrt{6} )^{2} )((x-7)^{2}-(i)^{2})\\=(x^{2} -4x-2)(x^{2} -14x+50)\\=x^{4} -18x^{3}+104x^{2} -172x-100\\

7 0
3 years ago
How many solutions does the equation (20 - 12x) = 5 - 3x have?
Alborosie

Answer:

x=5/3

Step-by-step explanation:

there is only 1

3 0
2 years ago
2rods whose length are 21 cm & 14cm are to be cut length equal
Allushta [10]
7cm each. reason: the rod of 21cm lenght will be cut into 3pieces of 7cm each, while that of 14cm will be cut into 2 pieces of 7cm each. Therefore, there 5 pieces of rods of 7cm each. Thanks.
6 0
3 years ago
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