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Furkat [3]
3 years ago
14

Tommorow I have maths exam can anyone help me please grade 9 cbse

Mathematics
1 answer:
Anestetic [448]3 years ago
5 0

Answer:

broo even i have math exams tomorrow but i am in 6th grade

Step-by-step explanation:

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What is the value of b in the equation below? 9^-8 x 9^-2 = a^b
vfiekz [6]

Answer:

b= -10

Step-by-step explanation:

9^ -8  * 9^ -2

We know that a^b * a^c = a^ (b+c)

9^ (-8+-2)

9^ -10

We want it in the form a^b

a=9

b= -10

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3 years ago
Name the points that are a distance of 5 units from d
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What is the correct factored form of x^2+3x-10
GarryVolchara [31]

Answer:

(x-2)(x+5)

Step-by-step explanation:

I have answered ur question

4 0
3 years ago
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What is the general equation of a sine function with an amplitude of 6, a period of StartFraction pi Over 4 EndFraction, and a h
Katen [24]

Answer:

C: y = 6 \sin (8(x-\frac{\pi}{2} ))

Step-by-step explanation:

Amplitude is changed by multiplying the entire trig function by a number, by default the amplitude is 1, so multiplying by 6 is necessary; eliminate A and B

Horizontal shift is going through the x axis, so it must be subtracted from the x value. This is only seen in choice C of the remaining answers.

Calculating the period isn't necessary because we already found the right answer but in case you need it in the future; the period is by default 2pi, to get to pi/4, it had to be 8 times smaller, so multiplying x and translations on x by 8 will get you the correct period.

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2 years ago
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Use these four examples to summarize the result when you add a natural number and an integer:
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When you add an integer and a natural number, you always get an integer. 
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