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2 years ago

For what value of the variable the value of the expression 4(5x–8) is 4 more than the value of the expression 2(4–x)?

Mathematics

2 answers:

elixir [45]2 years ago

8 0

Answer:

For $x=2$

Step-by-step explanation:

This problem reduces to solving the equation

$4(5x-8)=2(4-x)+4$

we expand both sides

$20x-32=8-2x+4$

rearrange and solve for x:

$22x=8+4+32$

$22x=44$

$\boxed{x=2}$

which is our answer.

bearhunter [10]2 years ago

7 0

Answer:

what is the answer. can you give me an equation? That might help me be able to solve the problem. When I tried to do it, i got 18/11=x

Step-by-step explanation:

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kaheart [24]

Answer:

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Step-by-step explanation:

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1 year ago

Find the distance between -10.5 and 7 on a number line (geometry)

SashulF [63]

Answer:

17.5

Step-by-step explanation:

|-10.5| + 7 = their combined distance

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2 years ago

Read 2 more answers

BRAINLIESTT ASAP! PLEASE HELP ME :)

Anvisha [2.4K]

Step-by-step explanation:

$\displaystyle y = Asec(Bx - C) + D$

According to this trigonometric function, −C gives you the OPPOSITE terms of what they really are, so be EXTREMELY CAREFUL:

$\displaystyle Phase\:[Horisontal]\:Shift → \frac{0}{4} = 0 \\ Period → \frac{2}{4}π = \frac{π}{2}$

Therefore we have our answer.

Extended Information on the trigonometric function

$\displaystyle Vertical\:Shift → D \\ Phase\:[Horisontal]\:Shift → \frac{C}{B} \\ Period → \frac{2}{B}π \\ Amplitude → |A|$

NOTE: Sometimes, your vertical shift might tell you to shift your graph below or above the midline where the amplitude is. Moreover, ALL tangent, secant, cosecant, and cotangent functions have NO AMPLITUDE.

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3 0

2 years ago

Solve the following inequality: 3-5x-x^2>=0

Dennis_Churaev [7]

Answer:

-5/2+-1/2√37≤x≤-5/2+1/2√37

Step-by-step explanation:

Step 1: Find the critical points

-x^2-5x+3=0

For this equation: a=-1, b=-5, c=3

−1x^2+−5x+3=0

x=−b±√b2−4ac/2a

x=−(−5)±√(−5)2−4(−1)(3)/2(-1)

x=5±√37 /−2

x=-5/2+1/2√37

Step 2: Check intervals in between critical points

x≤-5/2+1/2 √37 (Doesn't work in original inequality)

-5/2+-1/2√37≤x≤-5/2+1/2√37 (Works in original inequality)

x≥-5/2+1/2 √37 (Doesn't work in original inequality)

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2 years ago

Item 18

Ivanshal [37]

Answer:

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Step-by-step explanation:

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2 years ago