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3 years ago

22+54x=10(6x-2)solve for x.I have to show my work.

Mathematics

2 answers:

lbvjy [14]3 years ago

7 0

Answer:

22+54x=10(6x-2)

22+54x=60x-20

60x-54x=20+22

14x=42

x=3

FromTheMoon [43]3 years ago

3 0

$22 + 54x = 10(6x - 2) \\ \\ 11 + 27x = 5(6x - 2) \\ \\ 11 + 27x = 30x - 10 \\ \\ 27x - 30x = - 10 - 11 \\ \\ - 3x = - 21 \\ \\ x = \frac{ - 21}{ - 3} \\ \\ x = 7$

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Please help I will mark brainlist if correct

love history [14]

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Equation
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$y - 9 = - \dfrac{1}{2} (x + 2)$

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Rearrange the equation
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$y - 9 = - \dfrac{1}{2} (x + 2) \\ \\
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 y - 9 + 9 = - \dfrac{1}{2}x - 1 + 9 \ \Longleftarrow \text{add 9 to both side} \\ \\
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slope of the perpendicular line
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slope = 2

(*the slope of the perpendicular line is the negative reciprocal of the slope of line)

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Substitute slope into equation y = mx + c
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y = 2x + c

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Find y-intercept
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y = 2x + c
At point (0, 4)
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Substitute y-intercept into the equation y = 2x + c
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y = 2x + 4

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3 years ago

Classify the following angle. 28. I WILL GIVE BRANLIEST!!!!!! RATE AND VOTE!!!!HELPP

Kaylis [27]

Answer:

reflex angle

Step-by-step explanation:

Acute is less than 90

Right = 90

Obtuse is greater than 90 and less than 180

Straight is 180

Reflex is greater than 180 and less than 360

This is greater than 90 and less than 180 so it is a reflex angle

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3 years ago

X^2 + y^2 =-6x-14-6y

skad [1K]

Answer:

x=−3+√(−y−1)(y+5)

Step-by-step explanation:

thats if your solving for x if not to math w l ay

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3 years ago

Given e (-2,3) f(-2,-2) g(3,-2) h(3,3) prove efgh is a rhombus

lyudmila [28]

the answer to this question (-2,3)

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4 years ago

Spencer sampled 50 students of a private school who were questioned about their scores in Mathematics. Spencer wants to test the

pickupchik [31]

Answer:

C) 3.03

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 50

The Mean of the population (μ) = 62

The standard deviation of the Population (σ) = 7

Mean of the sample(x⁻) = 65

Z-score

$Z= \frac{x^{-} -mean}{\frac{S.D}{\sqrt{n} } }$

Step(ii):-

$Z= \frac{65 -62}{\frac{7}{\sqrt{50} } }$

Z = 3.03

Final answer:-

The Z-score = 3.03

6 0

4 years ago

22+54x=10(6x-2)solve for x.I have to show my work.​

22+54x=10(6x-2)solve for x.I have to show my work.