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4 years ago

Helps please Solve y=x2 +7

Mathematics

2 answers:

ivanzaharov [21]4 years ago

6 0

answer for this question IS x =plus or minus root Y - 7

yarga [219]4 years ago

5 0

Answer:

Step-by-step explanation:

Given

y = x² + 7 ← isolate x² by subtracting 7 from both sides

y - 7 = x² ← take the square root of both sides

$\sqrt{x^2}$ = ± $\sqrt{y-7}$ , hence

x = ± $\sqrt{y-7}$ → D

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One peach weighs 65 grams. You buy a box containing 100 peaches. If the cost of peach per kilogram is AED.10, how much you have

svetlana [45]

Given:

Weight of one peach = 65 grams

Number of peaches in a box = 100

Cost of peach per kilogram is AED.10.

To find:

How much you have to pay?

Solution:

We know that,

Total weight of box = Weight of one peach × Number of peaches in a box

= 65 × 100

= 6500 grams

1000g = 1 kg

1 g = 0.001 kg

6500 g = 6500 × 0.001 kg

= 6.5 kg

Now,

Cost of 1 kg = AED.10

Cost of 6.5 kg = 6.5 × AED.10

= AED.65

Therefore, you have to pay AED. 65.

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otez555 [7]

Hello,

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3 years ago

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BlackZzzverrR [31]

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