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qwelly [4]
4 years ago
12

NEXT

Mathematics
1 answer:
shtirl [24]4 years ago
4 0

Answer:

5x + 12 = 5x - 7

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                5*x+12-(5*x-7)=0

This equation has no solution.

A a non-zero constant never equals zero.

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Which data set has the largest standard deviation?
fomenos

Answer:

I Believe It Is B.), Have Fun Dreamer!

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
A rectangular floor of area 21.6 m2 is going to be tiled. Each tile is rectangular, and has an area of 576 cm2. An exact number
saveliy_v [14]

Answer:

Area of floor = 21.6m2

area of tile = 576cm2=0.0576m2

now,

number of tiles = 21.6/0.0576

= 375

7 0
4 years ago
Read 2 more answers
Math help Please!!!!
GalinKa [24]

Part A. What is the slope of a line that is perpendicular to a line whose equation is −2y=3x+7?

Rewrite the equation  −2y=3x+7 in the form y=-\dfrac{3}{2}x-\dfrac{7}{2}. Here the slope of the given line is  m_1=-\dfrac{3}{2}. If m_2 is the slope of perpendicular line, then

m_1\cdot m_2=-1,\\ \\m_2=-\dfrac{1}{m_1}=\dfrac{2}{3}.

Answer 1: \dfrac{2}{3}

Part B. The slope of the line y=−2x+3 is -2. Since -\dfrac{3}{2}\neq -2\quad \text{and}\quad \dfrac{2}{3}\neq -2, then lines from part A are not parallel to line a.

Since -2\cdot \left(-\dfrac{3}{2}\right)=3\neq -1\quad \text{and}\quad -2\cdot \dfrac{2}{3}=-\dfrac{4}{3}\neq -1, both lines are not perpendicular to line a.

Answer 2: Neither parallel nor perpendicular to line a

Part C. The line parallel to the line 2x+5y=10 has the equation 2x+5y=b. This line passes through the point (5,-4), then

2·5+5·(-4)=b,

10-20=b,

b=-10.

Answer 3: 2x+5y=-10.

Part D. The slope of the line y=\dfrac{x}{4}+5 is \dfrac{1}{4}. Then the slope of perpendicular line is -4 and the equation of the perpendicular line is y=-4x+b. This line passes through the point (2,7), then

7=-4·2+b,

b=7+8,

b=15.

Answer 4: y=-4x+15.

Part E. Consider vectors \vec{p}_1=(-c-0,0-(-d))=(-c,d)\quad \text{and}\quad \vec{p}_2=(0-b,a-0)=(-b,a). These vectors are collinear, then

\dfrac{-c}{-b}=\dfrac{d}{a},\quad \text{or}\quad -\dfrac{a}{b}=-\dfrac{d}{c}.

Answer 5: -\dfrac{a}{b}=-\dfrac{d}{c}.

5 0
4 years ago
Read 2 more answers
F(x)=tgx*ctgx.calculați derivata funcției
Marina86 [1]
Nota: am folosit Google Translate așa că sper sensul nu se pierde în traducere<span>

Sunt presupunând că t, g, și c sunt constante

</span>simplifica

f(x)=cg²t²x²

amintiți-vă că derivitive de af (x), în cazul în care a este o constantă este un lucru ori mai mare decât derivitve lui f (x)

f(x)=cg²t²(x²)

<span>Amintiti-va: derivitive lui x^n este nx^{n-1}</span>
<span>

</span>
<span>f'(x)=cg²t²(2x¹)
f'(x)=cg²t²(2x)
f'(x)=2cg²t²x</span>
5 0
3 years ago
9/10-1/3-1/5 find the fraction
Zanzabum
Find a common multiple in between the denominators.
10 and 3 and 5 -> the least common multiple is 30.

Change all the denominators to 30 by multiplying the top and bottom by the same number.

9/10=27/30
1/3=10/30
1/5=6/30

Subtract!
27/39-10/30-6/30=11/30

The answer is 11/30

Hope this helps!



3 0
3 years ago
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