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2 years ago

The quadratic formula

Mathematics

2 answers:

egoroff_w [7]2 years ago

6 0

Answer:

This is my alt

Step-by-step explanation:

Alecsey [184]2 years ago

5 0

Answer:

(-b±√(b²-4ac))/(2a)

Step-by-step explanation:

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Solve the following equation. Then place the correct number in the box provided. 6x - 8 = 16

uysha [10]

6x-8=16
6x-8+8=16+8
6x=24
6x=24
— —
6 6
X= 4

8 0

3 years ago

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sandra raised 15 dollars for pta and nita raised 45 dollars how many times as much money did nita raise as compared to sandra

OlgaM077 [116]

Answer:

3 times (3x)

Step-by-step explanation:

Sandra raised 15 dollars.

Nita raised 45

45 divided by 15 is 3

3 * 15 = 45

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2 years ago

Find the value of x from the equation

Jobisdone [24]

$\dfrac{8^{3x}}{2^{10}}=\dfrac{4^{2x}}{16} \\\dfrac{2^{3(3x)}}{2^{10}}=\dfrac{4^{2x}}{4^2} \\2^{9x-10}=4^{2x-2} \\2^{9x-10}=2^{2(2x-2)} \\2^{9x-10}=2^{4x-4} \\9x-10=4x-4 \\5x-6=0 \\5x=6 \\\boxed{x=\dfrac{6}{5}}$

Hope this helps.

r3t40

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3 years ago

You prepare 10 scoops of dog food for 5 dogs, and prepare 16 scoops of dog food for 8 dogs. What

Svetllana [295]

Answer:

<em>12 scoops of dog food are needed for 6 dogs,</em>

Step-by-step explanation:

<u>Proportions</u>

The number of scoops of dog foods and the number of dogs are proportional variables.

We are given that 10 scoops of dog foods are used for 5 dogs. This gives a proportion of 10/5=2 scoops per dog.

We also know that 16 scoops are used for 8 dogs. The proportion is also 16/8=2 scoops per dog.

Thus, the constant of proportionality is 2.

For 6 dogs, you need to prepare 2*6 = 12 scoops of dog food.

12 scoops of dog food are needed for 6 dogs,

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3 years ago

Naomi can text 90 words in 12 minutes. At this rate, how many minutes would it take her to text 165 words?

Nimfa-mama [501]

Answer:

Step-by-step explanation:

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