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3 years ago

What is the solution set of the equation x^2-3x-4=6

Mathematics

1 answer:

Oxana [17]3 years ago

4 0

Answer:

x = 5, x = -2

Step-by-step explanation:

x² - 3x - 4 = 6

Subtract: x² - 3x - 10 = 0

Find two numbers to factor: adds up to -3x, product is -10x²: -5x and 2x

Substitute: x² - 5x + 2x - 10 = 0

Factor: (x - 5)(x + 2) = 0

Solutions: x = 5, x = -2

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3 groups of how many tenths is 1.5

topjm [15]

Well its 1 and 5 tenths
- 1.5 = 15 tenths
- 5 groups of 3 is the answer
because 5 x 3 = 15

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3 years ago

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Why does this happen?

ki77a [65]

Answer:

It is an exponential function

Step-by-step explanation:

With every growing value of x, it will multiply itself that many number of times.

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2 years ago

Someone help me with the ASAP!

JulsSmile [24]

$\mathsf{Given :\;\;\dfrac{12}{\frac{3}{5}}}$

$\mathsf{:\implies 12 \times \dfrac{5}{3}}$

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3 years ago

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a recipe uses 1 1/4 cups of milk to make 10 servings. if the same amount of milk is used for each serving, how many servings can

Anestetic [448]

Answer:

128 servings can be made using 1 gallon of milk.

Step-by-step explanation:

Given that:

$1\frac{1}{4}$ cups of milk make 10 servings

$1\frac{1}{4}$ can also be written as 1.25

Ratio of cups of milk to servings = 1.25 : 10

1 gallon = 16 cups

Let,

x be the number of servings made from 1 gallon

Ratio of cups of milk to servings = 16 : x

This is a direct proportion

1.25 : 10 :: 16 : x

Product of mean = Product of extreme

10*16 = 1.25x

160 = 1.25x

1.25x=160

Dividing both sides by 1.25

$\frac{1.25x}{1.25}=\frac{160}{1.25}\\x=128$

Hence,

128 servings can be made using 1 gallon of milk.

3 0

3 years ago

24. The relative frequency of getting a HEAD when tossing a coin is ⅜. How many HEADS would you expect if the coin is tossed 400

Finger [1]

3/8 probability × 400 times = 150 heads

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3 years ago