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2 years ago

1 What do all rhombuses have in common? Choose ALL the correct answers.

Mathematics

1 answer:

Lunna [17]2 years ago

4 0

Answer:

4 sides and all the same size!

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Factorising quadratics <br><br> All questions please to be completed. I’m stuck.

Alex777 [14]

Answer:

1. (x +1)(x - 1)

2. (x+5)(x-5)

3. (x+12)(x-12)

4. (x+14)(x-14)

5. (x+5)(x-7)

Step-by-step explanation:

The first 4 expressions can be factored with the difference of squares type of factoring.

For #5, the odd one out is (x+5)(x-7) because it isn't a factor of any of the standard form equations, while the others are

5 0

4 years ago

4) The width of a rectangle is 8 inches. The length is 4 times its

jeka57 [31]

Answer:

Length = 4 * 8 = 32

Area = width * length = 8 * 32 = 256 square inches

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Bret wants to plot a graph to show the prices of different numbers of skateboards. He has to plot the following points:

Rudik [331]

From 0 to 200 at intervals of 50

7 0

3 years ago

Suppose that you are given a decision situation with three possible states of nature: S1, S2, and S3. The prior probabilities ar

seropon [69]

The answer would be 1.0067

6 0

3 years ago

X² + y² = 8

ohaa [14]

Answer:

$(2,2)~ \text{and}~ (-2,-2)$

Step by step explanation:

$x^2 +y^2 =8~~~~~~...(i)\\\\x-y=0~~~~~~~~~...(ii)\\\\\text{From (ii):}\\\\x-y = 0 \implies x = y\\\\\text{Substitute x = y in eq (i):}\\\\~~~~~~y^2 +y^2 =8\\\\\implies 2y^2 = 8\\ \\\implies y^2 = \dfrac 82\\\\\implies y^2 = 4\\\\\implies y = \pm\sqrt 4\\\\\implies y = \pm 2\\\\\text{Substitute y = x in equation (i):}\\ \\~~~~~~x^2 +x^2 = 8\\ \\\implies 2x^2 = 8\\\\\implies x^2 = \dfrac 82\\\\\implies x^2 = 4\\\\\implies x = \pm\sqrt 4\\\\\implies x = \pm2\\\\$

$\text{Hence,}~ (x,y) = (\pm2, \pm 2)$

3 0

2 years ago