2 years ago

Solve by completing the square 2x^2 + 14 = 4x

Mathematics

2 answers:

shutvik [7]2 years ago

4 0

Answer:

Step-by-step explanation:

ohaa [14]2 years ago

3 0

Use the formula (b/2)^2 in order to create a new term. Solve for x by using this

term to complete the square.

x = 1 ± i√6

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Point P(−3, −4) is rotated 90° counterclockwise about the origin. What are the coordinates of its image after this transformatio

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Counter clockwise means it goes backwards so -90°

After the 90° counter clockwise rotation the coordinates are (4,-3)

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3 years ago

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Ginny’s favorite cookie recipe requires 1 1/2 cups of sugar to make 24 cookies. How much sugar does Ginny need to make 36 of the

Delicious77 [7]

Ginny needs $2\frac{1}{4}$ cups of sugar to make 36 cookies.

Step-by-step explanation:

Given,

Sugar cups required for 24 cookies = $1\frac{1}{2}=\frac{3}{2}\ cups$

Ratio of sugar cups to cookies = $\frac{3}{2}:24$

Let,

x be the number of cups needed for 36 cookies.

Ratio of sugar cups to cookies = $x:36\\$

Using proportion;

Ratio of sugar cups to cookies :: Ratio of sugar cups to cookies

$\frac{3}{2}:24::x:36$

Product of mean = Product of extreme

$24*x=\frac{3}{2}*36\\24x=54$

Dividing both sides by 24

$\frac{24x}{24}=\frac{54}{24}\\x=\frac{9}{4}\\x=2\frac{1}{4}$

Ginny needs $2\frac{1}{4}$ cups of sugar to make 36 cookies.

Keywords: fraction, proportion

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7 0

3 years ago

Write the augmented matrix for the following system of equations.<br> y + 2x = 0<br> -3x + 2y = -2

beks73 [17]

Answer:

sorry never seen this

Step-by-step explanation:

5 0

2 years ago

At Max's restaurant the cost of a child's dinner is $3.00 less than the cost of an adult dinner. You bought four children's dinn

iris [78.8K]

The answer is that the adult price was 6 dollars

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2 years ago

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(2,4) (0,y) slope is -2

solong [7]

-2= y-4
——
0-2
-2= y-4
——
-2
(y-4)•-2 = -2
-2y+8=-2
-2y=-10
————
-2
y=5
hope this helps

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3 years ago