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Serjik [45]
4 years ago
10

Explain how to factor x2 + x – 12 using algebra tiles.

Mathematics
2 answers:
Natalka [10]4 years ago
8 0

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>

shutvik [7]4 years ago
6 0

Answer:

Ion kno

Step-by-step explanatio

Usurjwbckkdjd

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Roll a die 10 sided die 3 times. What is the probability that the sequence is strictly increasing or decreasing?
snow_lady [41]

Answer:

The probability of obtaining a sequence which is neither strictly increasing nor decreasing in 0.76.

Step-by-step explanation:

We have 10 possible outcomes on a single throw.

So, outcomes in 3 throws = 10^{3} =1000 outcomes.

Let x be the number of strictly increasing arrangements.

Let y be the number of strictly decreasing arrangements.

Let z be the number of outcomes that are neither strictly decreasing nor strictly increasing

So, we have x+y+z=1000

If we look at a strictly increasing arrangement from the other/opposite side, it will look like a strictly decreasing arrangement.

So, x = y

Hence, we can say the final equation will be :

2x+z=1000

And for strictly increasing arrangements ,all 3 numbers will be different and it can be done in 10C3 ways.

10C3=\frac{10!}{3!7!} = 120 ways

So, 2x=2\times120=240

Thus z=1000-240=760

So, the probability is = \frac{760}{1000} = 0.76

Therefore, the probability of obtaining a sequence which is neither strictly increasing nor decreasing in 0.76.

4 0
3 years ago
In janie's class 7 out of 25 students have blue eyes.what percent of the class has blue eyes?
azamat
We will find out 7% of 25.
7/100*25
=1.75 %

Therefore, 1.75% of Janie's class has blue eyes.

HARRY POTTER FOREVER! : P
3 0
4 years ago
Read 2 more answers
Determine the equation of the graph.
ruslelena [56]

Answer: C

y=-5cos(x) is the graphed equation. Cos(x) starts at (0,0) and one period is 2pi or 6.28 and by cos(x) multiplied by -5 starts the cosine wave at (0,-5) and thus corresponds to the graphed equation shown.

Any questions please feel free to ask. Thanks

6 0
3 years ago
Which equation represents a line perpendicular to the x axis<br><br> x=-4<br> y=x+2<br> y=2<br> y=x
Mumz [18]

Answer:

x x=-4 y=x+2

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Which reason completes the proof below?
sergeinik [125]

Observe the figure given.

Given: ABCD is a parallelogram.

To prove: ABCD is a rhombus

Statement

1. ABCD is a parallelogram. AC bisects \angle BCD, \angle BAD.

Reason: Given

2. \angle 1 \cong \angle 2, \angle 3 \cong \angle 4

Reason: Definition of an angle bisector

3. AC \cong AC

Reason: Reflexive property of congruence

4. \Delta ABC \cong \Delta ADC

Reason: ASA Postulate

5. AB \cong AD, BC \cong DC

Reason: corresponding parts of congruent triangles are equal.

6. AB \cong CD, BC \cong AD

Reason: Opposite sides of the parallelogram are congruent.

7. AB \cong AD \cong BC \cong CD

Reason: Transitive property of congruence

8. ABCD is a rhombus

Reason: Definition of rhombus

4 0
3 years ago
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