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o-na [289]
3 years ago
11

Find the value of x so that (x,-4) is on the line given by -2x + 3y = 6.

Mathematics
1 answer:
lord [1]3 years ago
6 0

Answer:

Step-by-step explanation:

-2x + 3y = 6.....(x, -4)...so y = -4

-2x + 3(-4) = 6

-2x - 12 = 6

-2x = 6 + 12

-2x = 18

x = -18/2

x = -9

so the value of x is -9.....(-9,-4)

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3 years ago
Solve the equation (2^2x)/( 2^x+5) = 1 algebraically using two different initial steps as directed below.
NikAS [45]

Answer:

x = 5

Step-by-step explanation:

Given equation as:

\frac{2^2x}{2^{x+5}} = 1

now,

writing each side as power of 2

2⁰ = 1

therefore,

\frac{2^2x}{2^{x+5}} = 2⁰

also, we know the property that , when the number having the same bases gets divided , the powers of the number gets subtracted

therefore,

2^{2x-(x+5)}  = 2⁰

now for the equality the power of 2 both sides should be equal

thus,

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or

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or

⇒ 2x - x = 5

or

⇒ x = 5

7 0
3 years ago
Please help me withe this proof as well.​
baherus [9]

- D is the midpoint of AB, E is the midpoint of BC

Answer: A. Given

I left off DB||FC because that's not given.  But we can construct it.

Construct line through C parallel to AB.  Extend DE to intersect and call the meet F.

- DB || FC

By Construction

----

- Angle B congruent to angle FCE

Answer: D. Alternate Interior Angles

We have transversal BC across parallel lines AB and CF, so we get congruent angles ABC and FCB aka FCE

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Answer: H. Vertical angles are congruent

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We have BE=CE, DBE=FCE, BED=CEF

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Answer: C. CPTCTF

Corresponding parts ...

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Things congruent to the same thing are congruent

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4 0
3 years ago
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AlexFokin [52]

Answer:

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7 0
3 years ago
Find the equation of perpendicular bisector of the lines with the given word (1,2) and (5,4) ​
Mandarinka [93]

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y = -2x + 4

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7 0
3 years ago
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