3 years ago

Bài 2: Tìm x biết

Mathematics

1 answer:

Svetllana [295]3 years ago

3 0

Answer:

Step-by-step explanation:

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Which mathematical inequality represents the following statement?

nlexa [21]

Answer:

6x > 3 < 4x

Step-by-step explanation:

..................

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3 years ago

Simultaneous Equations - 5p-2q=9 3p+2q=7

Luda [366]

Apnswer:

p = 1

q = -2

Step-by-step explanation:

5p - 2q = 9 eqn 1

3p + 2q = 7 eqn 2

subtract equation 2 from 1

2p = 2

p = 1

Substitute for p in equation 1

5(1) - 2q = 9

5 - 2q = 9

-2q = 4

q = -2

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2 years ago

Line r passes through points (8,10) and (2,3). Line s is perpendicular to r. What is the slope of line S?

Zepler [3.9K]

Answer:

$-\dfrac67$

Step-by-step explanation:

slope of r:

$a_r=\dfrac{10-3}{8-2}=\dfrac76$

s is perpendicular to r:

$s\perp r\ \ \implies\ \ a_s\cdot a_r=-1\\\\a_s\cdot\dfrac76=-1\\\\a_s=-\dfrac67$

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3 years ago

Determine the maximum number of zeros. Then, determine the x-intercepts of the function. x^3-3x^2-22x+24

JulijaS [17]

Answer:

Three zeros $x=-4,\ x=1,\ x=6$

x-intercepts: (-4,0), (1,0), (6,0)

Step-by-step explanation:

Plot the graph of the function $y=x^3-3x^2-22x+24$ on the coordinate plane. This graph intersects the x-axis at three different points (see attached diagram):

(-4,0);
(1,0);
(6,0).

This means $x=-4,\ x=1,\ x=6$ are zeros of the function $y=x^3-3x^2-22x+24$

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3 years ago

Last Saturday 16 people worked nat the theater,four people worked the morning shift and 12 people worked the evening shift. they

Charra [1.4K]

$16.50 because you divide 1,032.00 by 16 and get $16.50.

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3 years ago

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