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QveST [7]
3 years ago
7

Solve y=x^2 + 7 for x

Mathematics
1 answer:
crimeas [40]3 years ago
5 0
Hello! To solve for x means to isolate x:

y = x^2 + 7
y - 7 = x^2
sqrt(y - 7) = x

Answer:
x = sqrt(y - 7)

Hope this helps!
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The table shows the number of cups of water required when cooking different amounts of rice. Amount of Rice (cups) Amount of Wat
Ugo [173]
<span>Amount of Rice (cups) Amount of Water (cups)
2                                     5
3                                     7.5
5                                   12.5
8                                   20

Let's find the ratio of rice and water:

5 / 2 = 2.5 => 2 * 5 = 5

7.5 / 3 = 2.5 => 3 * 2.5 = 7

12.5 / 5 = 2.5 => 5 * 2.5 = 12.5

20 / 8 = 2.5 => 8 * 2.5 = 20

So, as the ratio of water ot rice is constant, and the first variable is the amount of rice, you can calculate the amount of water given the amount of rice.

So, the amount of rice is independent value and the amount of water is dependent (it depends on the amount of rice).

The amount of rice is the dependent value. FALSE
The amount of water is the dependent value.TRUE
The amount of rice is the independent value. TRUE
The amount of water is the independent value.</span>FALSE
7 0
3 years ago
Read 2 more answers
Hannah walked 3/4 of the way from school to her home. A.What fractional part of the distance does she have left to walk? b.The r
natita [175]

Answer: A. 1/4 left

Step-by-step explanation:

7 0
3 years ago
Hi, I need this answer asap so if anyone knows it can someone help me with this mathswatch question?
Sedaia [141]

Answer:

y=x+a/-2b

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Step-by-step explanation:

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7 0
2 years ago
The sale price of last year’s hottest game is 45% off the retail price. The game sold last year for $92.00. What is the sale pri
irina [24]

Answer: D $133.40

Step-by-step explanation:

SP $92.00

Discount = 45%

Sale price = 92 x 1.45 = 133.40

5 0
3 years ago
A direct variation function contains the points (2,14) and (4,38) which equation represents the function
Dmitry [639]
You are given two points on a line, and told that the function is "direct variation."  You can save a lot of time by recognizing that the y-intercept here is zero (0).  Thus, the line passes through the origin.

A line through (2,14) and (4,38) is NOT direct variation, because the line connecting those two points does NOT pass through the origin, and thus has a vertical intercept.
3 0
3 years ago
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