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2 years ago

Solve the equation 6(2x+4)^2=(2x+4)+2 a x=-5/3 or -9/4

Mathematics

2 answers:

m_a_m_a [10]2 years ago

8 0

Answer:

-5/3 or -9/4 is the answer

Step-by-step explanation:

Just completed it

9966 [12]2 years ago

6 0

Answer:

x=5/3

Step-by-step explanation:

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What is 699,900 rounded to the nearest thousand

Rus_ich [418]

When you round 699,900 to the nearest hundred, you get 700,00.

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3 years ago

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What is 4=2x as a improper fraction or integer

Svetradugi [14.3K]

Answer:

2/4 or 1/2

Step-by-step explanation:

Divide both sides by 2 and you get x=2/4. You can simplify further by dividing 2 and 4 by 2 to get 1/2

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3 years ago

Point C(3.6, -0.4) divides in the ratio 3 : 2. If the coordinates of A are (-6, 5), the coordinates of point B are . If point D

polet [3.4K]

Given:
A has coordinates (-6,5)
C has coordinates (3.6,-0.4).
C divides AB in the ratio 3:2.

Refer to the diagram shown below.
The coordinates of B are determined by
$\frac{3.6-(-6)}{x-(-6)} = \frac{3}{3+2} \\ \frac{9.6}{x+6} = \frac{3}{5} \\ 3(x+6) = 48 \\ 3x +18=48 \\ x=30/3=10$
Also,
$\frac{5-(-0.4)}{5-y} = \frac{3}{5} \\ 3(5-y) = 27 \\ 15-3y=27 \\ y= \frac{12}{-3} =-4$

Answer:
The coordinates of B are (10,-4).

Now, we know the coordinates of line segment AB as A (-6, 5) and B (10,-4).
D (x,y) divides AB in the ratio 4:5.
Therefore
$\frac{x-(-6)}{10-(-6)} = \frac{4}{4+5} \\ \frac{x+6}{16} = \frac{4}{9} \\ 9(x+6)=64 \\ 9x+54=64 \\ x=1.11$
Also,
$\frac{5-y}{5-(-4)} = \frac{4}{9} \\ 5-y = 4 \\ y = 1$

Answer:
The coordinates of D are (1.11, 1)

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3 years ago

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Mrs. baker uses 7.5 cups of sugar to make 14 dozen cookies. to the nearest hundredth, what is the rate to cups of sugar per cook

blondinia [14]

A rate is a special ratio in which the two terms are in different units. It is a comparison of measurements that have different units, like cents and grams. A unit rate is a rate with a denominator of 1. We calculate as follows:

rate = 7.5 cups of sugar / (14 x 12 cookies)
rate = 0.045 cups of sugar per cookie

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3 years ago

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Solve the system by substitution. 9x +y = 21 -2-3=y

KengaRu [80]

Answer:

m = -9

y = -5

hope this helps!

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3 years ago