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Veseljchak [2.6K]
3 years ago
11

(x+3)(x-5)= in standard form

Mathematics
2 answers:
sammy [17]3 years ago
5 0
Answer:

x^2-2x-15

Hope this helps!
SOVA2 [1]3 years ago
4 0
X^2x-15
you use the FOIL method
the first two terms x times x equals x^2 then the outer terms x and -5 is -5x and then inner terms 3 and x is 3x and -5x and 3x simplifies to -2x and then last terms 3 and -5 is -15
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What is the quotient of b^3+4b^2-3b+126/b+7
stepladder [879]
The correct answer for the question that is being presented above is this one: "D. b² − 3b + 18 R252. T<span>he quotient of b^3+4b^2-3b+126/b+7. In order to get the answer, you have to start dividing b^3 by b. Then multiply the quotient to b + 7. Then after that, subtract. Do the same thing until you reached the end.</span>
7 0
3 years ago
Solve the proportion and round your answer to the nearest tenth.
GalinKa [24]

Answer:

y = 1.1

Step-by-step explanation:

Proportion is a statement that two ratios are equal.

It can be written in two ways:

  • Two equal fractions \frac{a}{b} = \frac{c}{d}
  • Two equal sides a: b = c: d.

We can use cross products to find a missing term in it.

Let us solve the question

∵ The proportion statement is \frac{7.7}{15.4} = \frac{y}{2.2}

→ Use the  cross multiplication to find y

∵ y × 15.4 = 7.7 × 2.2

∴ 15.4y = 16.94

→ Divide both sides by 15.4 to find y

∵ \frac{15.4y}{15.4} = \frac{16.94}{15.4}

∴ y = 1.1

<em>No need to round it to the nearest tenth because the answer has no hundredth to round it to the tenth</em>

8 0
2 years ago
The miles-per-gallon obtained by the 1995 model q cars is normally distributed with a mean of 22 miles-per-gallon and a standard
mina [271]
That probability is about 0.4207.

4 0
3 years ago
Read 2 more answers
I need help please!!!!!
charle [14.2K]
Obtuse angle. If wrong I’m sorry lol
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Which one is the correct answer?
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The second one is the right answer

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