2 years ago

1/2x +1/4y =32 , then find 2x+y

Mathematics

1 answer:

NeX [460]2 years ago

3 0

Answer:

128

Step-by-step explanation:

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What is the distance between the points (-6, 7) and (-1, 1) ? Round to the nearest whole number

pogonyaev

Answer:

7.8 rounded to the nearest whole number would be 8.

Step-by-step explanation:

-6 would be x1

7 would be y1

-1 would be x2

1 would be y2

Take these numbers and plug them into the distance formula:

$\sqrt{(x2-x1)^{2} + (y2-y1)^2}$

$\sqrt{(-1 - -6)^2 + (1-7)^2} \\\sqrt{(5)^2 + (6)^2\\\} \\\sqrt{25 + 36} \\\sqrt{61} = 7.81$

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3 years ago

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x – 4 = 0 for x?

vovikov84 [41]

Answer:

$x=\frac{-3\pm\sqrt{(3)^2-4(5)(-4)}}{2(5)}$

Therefore, Option 1 is correct.

Step-by-step explanation:

We have been given the quadratic equation:

$5x^2+3x-4=0$

If we compare it will general quadratic equation which is: $ax^2+bx+c=0$

Here, a=5,b=3 and c= -4.

Now, we will use the formula:

And then $x=\frac{-b\pm\sqrt{D}}{2a}$

Where, $D=b^2-4ac$

$x=\frac{-3\pm\sqrt{(3)^2-4(5)(-4)}}{2(5)}$

Therefore, Option 1 is correct.

6 0

3 years ago

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Can someone help me out

12345 [234]

Answer:

g - 16 is the answer

Step-by-step explanation:

−2 (3g−8g+8) − 9g

Distribute:

= (−2) (3g) + (−2) (−8g) + (−2) (8) + −9g

= −6g + 16g + −16 + − 9g

Combine Like Terms:

=−6g + 16g+ −16+ −9g

= (−6g+16g+−9g) + (−16)

=g+−16

Answer:

=g−16

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2 years ago

Knitting a scarf. On average she can knit 2 mm in 35 minutes. Express this as a rate in mm/min

Natali5045456 [20]

Answer:

she can knit 1mm/17.5min or she can knit 1mm in 17 minutes and 30 seconds.

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2 years ago

Hi, have a good day!

Zinaida [17]

Thank.........you......so.........much.....

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2 years ago

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