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3 years ago

When does the graph of a quadratic function open upward of downward

Mathematics

1 answer:

sveticcg [70]3 years ago

6 0

It opens upward when X is an even power. It would be for X squared or X raised to the 4th power.

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Calculate to the nearest 1/10th meter the length of the side of a 7th, 12th, and 30th hectare square plot.

Tems11 [23]

Answer and explanation:

To find : Calculate to the nearest 1/10th meter the length of the side of a 7th, 12th, and 30th hectare square plot.

Solution :

The area of the square is given by,

$A=s^2$ where s is the side length.

We know, $1 \text{ hectare}=10,000\ m^2$

1) The area of square plot is 7 hectare.

Area in meter square is $A=7\times 10000=70000\ m^2$

Substitute the value in the formula,

$70000=s^2$

$\sqrt{70000}=s$

$264.57=s$

Side nearest to 1/10th meter is 264.8 meter.

2) The area of square plot is 12 hectare.

Area in meter square is $A=12\times 10000=120000\ m^2$

Substitute the value in the formula,

$120000=s^2$

$\sqrt{120000}=s$

$346.41=s$

Side nearest to 1/10th meter is 346.4 meter.

3) The area of square plot is 30 hectare.

Area in meter square is $A=30\times 10000=300000\ m^2$

Substitute the value in the formula,

$300000=s^2$

$\sqrt{300000}=s$

$547.72=s$

Side nearest to 1/10th meter is 547.7 meter.

5 0

2 years ago

Solve for y: 1 = -8y - 3x<br> Write your answer in slope-intercept form.

masha68 [24]

You should use the website math papa it’ll gives you the answers step by step hope it helps!!

6 0

2 years ago

If the length of a flag is 18 inches and the width is 12 inches what is the area

attashe74 [19]

Answer:

18 by 12 is 216

8 0

2 years ago

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What is being done to the variable in the equation y + 8.5 = 17.2?

olganol [36]

<span>The number 8.5 is being added. </span>

3 0

3 years ago

Read 2 more answers

Answer asap............

diamong [38]

Answer:

6+(-2)

Step-by-step explanation:

6 is positive but we are subtracting 2. Therefore, the expression is 6 plus -2. It is negative because that is what we are taking away. The plus sign does not mean anything because there is a negative number. When you look at it, you immediately read 6 plus -2 and since it is a negative not a positive then it's subtracting not adding.

5 0

2 years ago