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Neko [114]
3 years ago
9

PLS HELP!!!!!!!!!!!!!

Mathematics
1 answer:
fgiga [73]3 years ago
3 0

Answer:

7+1- -7

Step-by-step explanation:

i just guessed :)

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Please help!!! <br><br> Which number line shows the solutions to n &gt; -2?
PolarNik [594]

Answer: the first one

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Log16^*+log4^*+log2^*=7​
ale4655 [162]

Answer:

x = 16

Step-by-step explanation:

Given

log_{16}(x) + log_4(x) + log_2(x) = 7

Required

Solve for x

log_{16}(x) + log_4(x) + log_2(x) = 7

Change base of 16 and base of 4 to base 2

\frac{log_2(x)}{log_2(16)} + \frac{log_2(x)}{log_2(4)} + log_2(x) = 7

Express 16 and 4 as 2^4 and 2^2 respectively

\frac{log_2(x)}{log_2(2^4)} + \frac{log_2(x)}{log_2(2^2)} + log_2(x) = 7

The above can be rewritten as:

\frac{log_2(x)}{4log_22} + \frac{log_2(x)}{2log_22} + log_2(x) = 7

log_22 = 1

So, we have:

\frac{log_2(x)}{4*1} + \frac{log_2(x)}{2*1} + log_2(x) = 7

\frac{1}{4}log_2(x) + \frac{1}{2}log_2(x) + log_2(x) = 7

Multiply through by 4

4(\frac{1}{4}log_2(x) + \frac{1}{2}log_2(x) + log_2(x)) = 7 * 4

log_2(x) + 2}log_2(x) + 4log_2(x) = 28

7log_2(x) = 28

Divide through by 7

\frac{7log_2(x)}{7} = \frac{28}{7}

log_2(x) = 4

Apply the following law of logarithm:

<em>If </em>log_ab = c<em> </em><em>Then </em>b = a^c<em></em>

So, we have:

x = 2^4

x = 16

6 0
3 years ago
Find the polynomial function in standard form that has the zeros listed. i and -i
fgiga [73]

The polynomial function in standard form that has the zeros listed. i and -i is  x² +1 = 0.

<h3>What is polynomial function?</h3>

A quadratic, cubic, quartic, and other functions involving only non-negative integer powers of x are examples of polynomial functions.

The values of x that fulfil the formula f(x) = 0 are the zeros of a polynomial. The polynomial's zeros are the x values for which the function's value, f(x), equals zero in this case. The degree of the equation f(x) = 0 determines how many zeros a polynomial has.

Calculation for the polynomial function-

The general two degree/quadratic equation is given by-

ax² + bx + c = 0

Where a ≠ 0

If the two roots of the equation are x1 and x2.

Then the relation between roots and coefficients of the polynomial are -

  • The sum of the roots = (- coefficient of x)/(coefficient of x²)

         x1 + x2 = (-b)/a

  • The multiplication of the roots = constant/coefficient of x²

        x1.x2 = c/a

From the above two relation the general equation can be written as-

x² -(x1 - x2)x + x1.x2 = 0

Lets say x1 = i and x2 = -i

Substitute the values of x1 and x2 in the general equation

x² -(i - i)x + (i).(-i) = 0

x² - i ² = 0

x² + 1 = 0

Therefore, the polynomial function in standard form that has the zeros listed. i and -i is x² + 1 = 0.

To know more about Polynomial Function, here

brainly.com/question/10918240

#SPJ4

7 0
1 year ago
17. Who has finished more of their homework problems? Myron or Jane?
Whitepunk [10]
7/9==0,7=7/10=70%
2/3==0,6=6/10=60%
More of their homework problems has finished Myron
5 0
2 years ago
The momentum of a 10,000kg train traveling east is 150,000 kg m/s east. What is the velocity?
Tamiku [17]

Answer:

Increasing the speed or velocity of an object makes it harder to stop. Momentum has ... A 10,000 kg train is traveling east at. 15 m/s. Calculate the momentum of the train. Answer 2. 10,000 kg x 15 m/s east = 150,000 kg·m/s east.

Step-by-step explanation:

4 0
3 years ago
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