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3 years ago

What number should be added to both sides of the equation to complete the square? x2 + 3x = 6

Mathematics

2 answers:

Bond [772]3 years ago

4 0

Answer: It’s B

Step-by-step explanation: I got it right on the test

sladkih [1.3K]3 years ago

3 0

The answer is B because you are suppose to square and divide once you subtract 6 on both sides.

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WhT is the answer to -8(-4f-9)

Ne4ueva [31]

Answer:

32f+72

Step-by-step explanation:

Distribute the -8

7 0

3 years ago

Read 2 more answers

A store sells mugs. Each mug costs the same amount. During a sale, the store reduces the price of each mug by $1.75. Wen spends

Ostrovityanka [42]

Answer:

$7.39

Step-by-step explanation:

Let the initial price be x

<u>Then the reduced price is </u>

x - 1.75

<u>If 5 mugs cost $28.20, we have equation:</u>

(x - 1.75)*5 = 28.20
x - 1.75 = 28.20/5
x - 1.75 = 5.64
x = 1.75 + 5.64
x = 7.39

Initial price for 1 mug was $7.39

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3 years ago

Read 2 more answers

Suppose box A contains 4 red and 5 blue poker chips and box B contains 6 red and 3 blue poker chips. Then a poker chip is chosen

sergejj [24]

Answer:

0.5172 = 51.72% probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Coin chosen from box B is red.

Event B: Blue poker chip transferred.

Probability of choosing a red coin:

7/10 of 4/9(red coin from box A)

6/10 of 5/9(blue coin from box A). So

$P(A) = \frac{7}{10}*\frac{4}{9} + \frac{6}{10}*\frac{5}{9} = \frac{28 + 30}{90} = 0.6444$

Blue chip transferred, red coin chosen:

6/10 of 5/9. So

$P(A \cap B) = \frac{6}{10}*\frac{5}{9} = \frac{30}{90} = 0.3333$

What is the probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.3333}{0.6444} = 0.5172$

0.5172 = 51.72% probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red

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3 years ago

What is the rule for the reflection ?

Zolol [24]

Answer:

This idea of reflection correlating with a mirror image is similar in math.

This complete guide to reflecting over the x axis and reflecting over the y axis will provide a step-by-step tutorial on how to perform these translations.

First, let’s start with a reflection geometry definition

Math Definition: Reflection Over the X Axis

A reflection of a point, a line, or a figure in the X axis involved reflecting the image over the x axis to create a mirror image. In this case, the x axis would be called the axis of reflection.

Math Definition: Reflection Over the Y Axis

A reflection of a point, a line, or a figure in the Y axis involved reflecting the image over the Y axis to create a mirror image. In this case, theY axis would be called the axis of reflection.

What is the rule for a reflection across the X axis?

The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same.

3 0

2 years ago

Se desconoce el número de alumnos que hay en una clase de repostería, cada alumno elaborará una galleta para cada compañero una

svetoff [14.1K]

Answer:

nsjsisjsjwisujssjnsmjsjsjsk jdjdjdjdjdjdjdjdjdjjsjsjxjdjdjnwbshxijandbvdjxkwksndndjjxisjsknendjjjxjzjzjwjowi kwhhdiwiqihiwhsiwjjxiwijidwjjwisisiakskdhbdvfhsiiwnwndhidisiwjehhhhhhhhhhhhhhhhhhhsisjwngxxuiajqnwnbdhdkalapoiwurnxkanammxkbsjjsisisowjncnchshauwoskdmfbcucusiwkkfhdhd

Step-by-step explanation:

jsjsjsjsjdjdjdjjdjddjjsksksskskwkjdjsisiwjjsjdbdbhsbsjsjsjjdiwiwiwjwhdnndbdjd

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3 years ago