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3 years ago

If y = 2x+ 3, find the value of y when x = 5

Mathematics

2 answers:

Vera_Pavlovna [14]3 years ago

6 0

Y = 2 ( 5 ) + 3 ⇒ y = 13 :)))

Alex17521 [72]3 years ago

5 0

♥ y = 2x+ 3
♥ If X=5 then we can replace this.
♥ 2*5+3=13
♥Therefore y=13

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Decrease 784 in the ratio 3:4

Y_Kistochka [10]

Answer:

336 and 448

Step-by-step explanation:

sum the ratio

divide the actual number by the sum i.e 784÷7=122

multiply 112 by 3 and by 4

4 0

3 years ago

Please help, Thanks.

Evgen [1.6K]

Answer:

Step-by-step explanation:

49x² + 28xy + 4y² ← is a perfect square of the form

(ax + by)² = a²x² + 2abxy + b²y²

49 = 7² ⇒ a = 7 and 4 = 2² ⇒ b = 2

2ab = 2 × 7 × 2 = 28

Hence

49x² + 28xy + 4y² = (7x + 2y)²

with factor 7x + 2y ⇒ C

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3 years ago

I need someone who will answer all five questions correctly. Give out 100 bonus points for who will answer all 5 correctly

KATRIN_1 [288]

Answer:

The circumference of the yellow circle is $9\pi$ or $28.27cm^2$ approximately, the circumference of the blue circle is $6\pi$ or $18.85m^2$ approximately, the circumference of the green circle is $80\pi$ or $251.33mm^2$ approximately, the circumference of the red circle is $5\pi$ or $15.71cm^2$ approximately, and the circumference of the pink circle is $7\pi$ or $21.99cm^2$ approximately.

Step-by-step explanation:

To find the circumference of a circle, you need to multiply the diameter of the circle and multiply it by $\pi$ . In this case, the circumferences of the yellow circle are $9\pi$ or approximately $28.27cm^2$ , the circumference of the blue circle is $6\pi$ or approximately $18.85m^2$ , the circumference of the green circle is $80\pi$ or approximately $251.33mm^2$ , the circumference of the red circle is $5\pi$ or approximately $15.71cm^2$ , and the circumference of the pink circle is $7\pi$ or approximately $21.99cm^2$ .

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3 years ago

I need help with number 5 please

bearhunter [10]

I believe the answer is b

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3 years ago

write the equation of the line parallell to the given line passing through the given point in slope intercept form y=-4x-2 (0, -

Finger [1]

Step-by-step explanation:

slope: -4

y + 1 = -4(x - 0)

y + 1 = -4x + 0

y = -4x - 1

4 0

3 years ago