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3 years ago

Write an equation of the line that passes through the given points. (−5,−2),(−5,0)

Mathematics

1 answer:

agasfer [191]3 years ago

5 0

Answer:

y=-2

Step-by-step explanation:

y-y1=m(x-x1)

m=(y2-y1)/(x2-x1)

m=(0-(-2))/(-5-(-5))

m=(0+2)/(-5+5)

m=2/0

y-(-2)=0

y+2=0

y=0-2

y=-2

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HELPPPPPP pls give explaiantikn or work pls pls pls pls brainliest

Andru [333]

Answer:

Elizabeth had 30 stamps originally.

Step-by-step explanation:

Let,

x be the number of stamps Elizabeth have.

Number of stamps given to John = 1/6 of x = $\frac{1}{6}x$

Remaining stamps = $x-\frac{1}{6}x = \frac{6x-1x}{6} = \frac{5}{6}x$

Stamps given to Peter = 1/5 of remainder = $\frac{1}{5}*\frac{5}{6}x = \frac{1}{6}x$

Number of stamps left = 20

Now,

$\frac{1}{6}x + \frac{1}{6}x + 20 = x\\\\\frac{1x+1x+120}{6} = x\\\\\frac{2x+120}{6} = x\\\\2x + 120 = 6x \\\\120 = 6x - 2x \\\\120 = 4x \\4x = 120$

Dividing both sides by 4

$\frac{4x}{4}=\frac{120}{4}\\x=30$

Hence,

Elizabeth had 30 stamps originally.

3 0

2 years ago

Renee calculated 3/6 plus 2/4 and said the answer equaled 5/10. Amanda solved the same problem and said the answer equaled one w

Yuliya22 [10]

Answer:

Amanda's

Step-by-step explanation:

Given :

3/6 + 2/4

The L. C. M of 6 and 4 = 12

(6 + 6) / 12

12 / 12

= 1

Renne's result = 5/10

Amanda's result = 1 whole

Hence, Amanda's result makes more sense.

5 0

2 years ago

If f(x, y) = esin(x + y) and D = [−π, π] × [−π, π], show the following. 1 e ≤ 1 4π2 D f(x, y) dA ≤ e The area of the region D is

Digiron [165]

I'm guessing the purpose of this exercise is to find the average value of $f(x,y)=e^{\sin(x+y)}$ over the region $D$ ,

$D=\left\{(x,y)\mid (x,y)\in[-\pi,\pi]^2\right\}$

which is

$\displaystyle\frac{\displaystyle\iint_Df(x,y)\,\mathrm dx\,\mathrm dy}{\displaystyle\iint_D\mathrm dx\,\mathrm dy}$

The denominator is the measure (area) of $D$ , which is easy to compute:

$\displaystyle\iint_D\mathrm dx\,\mathrm dy=\int_{-\pi}^\pi\int_{-\pi}^\pi\mathrm dx\,\mathrm dy=(2\pi)^2=4\pi^2$

Not to be confused with the integral in the numerator:

$\displaystyle\iint_Df(x,y)\,\mathrm dx\,\mathrm dy=\int_{-\pi}^\pi\int_{-\pi}^\pi e^{\sin(x+y)}\,\mathrm dx\,\mathrm dy$

but this integral is difficult to compute, hence the inequalities. We have

$-1\le\sin(x+y)\le1$

$\implies\dfrac1e\le e^{\sin(x+y)}\le e$

$\implies\displaystyle\iint_D\frac{\mathrm dx\,\mathrm dy}e\le\iint_De^{\sin(x+y)}\,\mathrm dx\,\mathrm dy\le\iint_De\,\mathrm dx\,\mathrm dy$

$\implies\displaystyle\frac{4\pi^2}e\le\iint_De^{\sin(x+y)}\,\mathrm dx\,\mathrm dy\le4\pi^2e$

3 0

2 years ago

David bought a cape and mask for each of the 9 boys at his party. The capes cost $5.25 each and the masks cost $4.35 each. How m

Mila [183]

The clown earned$104.75

4 0

3 years ago

Brooklyn has sold 70% of the 20 candy bars she is supposed to sell for her basketball team. How many candy bars did she sell alr

romanna [79]

Answer:

14 candy Bars

Step-by-step explanation:

Let's under the question before we attempt it.

Total number of Candy Brooklyn is supposed to sell = 20

Percentage of Candy Bars sold= 70%

To know the exact number of Candy sold, it's means we must know the exact value of 70% of 20.

To solve this, we just proceed with mathematical operations.

Therefore:

70% of 20

= 70 / 100 * 20

= 1400 / 100

= 14.

It therefore means that, Brooklyn sold 14 Candy Bars

Math is fun! Lets Keep learning

7 0

2 years ago