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Aleonysh [2.5K]

3 years ago

11

Help!!!!!!!!!!!!!!!!!!!!!

1 answer:

Rufina [12.5K]3 years ago

8 0

Answer:

6

Step-by-step explanation:

There are only 6 significant digits because in total there are 9 digits. We do not need the first 2 0's, so now we only have 7 digits. But the question is do we really need the last 0? The answer is no. No, you do not need the last 0 because we already know that it's .0049, and the 0 is just an extra.

So without all the insignificant 0's, the number would look like this:

13.0049

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Find the value of p if the following pair of equation may have one root common:

Diano4ka-milaya [45]

The value of p if the pair of equations may have one root common is 1.

<h3>What are the roots of the equation?</h3>

Let the equation be ax² + bx + c = 0.

Then the roots of the equation will be

$\rm x = \dfrac{-b \pm \sqrt{b^2 - 4 a c }}{2a}$

The equations are given below.

2x² + px - 1 = 0 and 3x² - 2x - 5 = 0

The roots of the equation 3x² - 2x - 5 = 0 will be

3x² - 5x + 3x - 5 = 0

(3x - 5)(x + 1) = 0

x = -1, 5/3

At x = -1, the value of p will be

2(-1)² + p(-1) - 1 = 0

2 - p - 1 = 0

p = 1

The value of p if the pair of equations may have one root common is 1.

More about the roots of the equation link is given below.

brainly.com/question/12029673

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2 years ago

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nordsb [41]

I don’t know i’m sorry

6 0

3 years ago

Mrs. Smith's Algebra class has 29 students. There are 3 more girls than boys.

irinina [24]

Answer:

i think 32 im not really sure

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Which equation is equivalent to 7(x-2) = 149? Will give Brainly points

Effectus [21]

Answer:

B. $\log_{7} 149+2 = x$

Step-by-step explanation:

Let $7^{x-2} = 149$ , we proceed to find its equivalent expression by applying logarithm properties:

1) $7^{x-2} = 149$ Given.

2) $\log_{7} 7^{x-2} = \log_{7} 149$ Definition of logarithm.

3) $(x-2)\cdot \log_{7}7 = \log_{7} 149$ $\log_{a} b^{c} = c\cdot \log_{a} b$

4) $x-2=\log_{7}149$ $\log_{a}a = 1$

5) $x = \log_{7}149+2$ Compatibility with addition/Existence of additive inverse/Modulative property

6) $\log_{7} 149+2 = x$ Symmetrical property/Result.

Hence, the right answer is B.

8 0

3 years ago

Can someone please help me??

katrin [286]

I believe your answer should be 8, I am sorry if I am wrong, please mark mine with a low star rating if I am false

7 0

4 years ago