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3 years ago

Help me X^6 times what =x^9

Mathematics

1 answer:

german3 years ago

4 0

The answer is x^3. When you multiply exponents with the same base, you add the power number. Ex: x^4*x^2=x^6

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Find the mean absolute deviation for the set of data. Number of sibblings 2,5,8,9,7/6,3,5,1,4,

Tresset [83]

8,7,9,3,4,9,2

This is correct because I’m in middle school

7 0

3 years ago

2 feet equal how many inches

djverab [1.8K]

To answer that it = 2 feet = 24 inches

8 0

3 years ago

Read 2 more answers

The temperature inside a certain industrial machine at time t seconds after startup, for 0 < t < 10, is given by h(t) = 42

frutty [35]

Answer:

$t= \frac{125}{38} s$

Step-by-step explanation:

We are given the temperature inside the machine from startup until 10 seconds later, the formula is:

$h(t)= 42 \cdot t +1 - 4\cdot t +2 (degrees \, C)$

We want to know at what time t the temperature inside the machine will be equal to 128 °C.

So we set:

$h(t)=128$

$42\cdot t+1-4\cdot t+2=128$

Now, we rearrange the equation to keep terms with t on the left hand side and terms without t on the right hand side

$42\cdot t-4\cdot t=128-1-2$

and we simplify:

$(42-4)\cdot t= 128-2-1= 125$

$38 \cdot t = 125$

now it's easy to solve for t:

$t=\frac{125}{38}$

And thus we arrive to the solution.

5 0

3 years ago

If 8 is added to twice a number and this sum is multiplied by 5, the result is the same as if the number is multiplied by 6 and

makkiz [27]

(2x+8)x5=6x+12
10x+40=6x+12
4x=-28
x=-7

7 0

4 years ago

JK is formed by J(-12,3) and K(8,-5). If line r is the perpendicular bisector of JK, write an equation for r in slope-intercept

dem82 [27]

Answer:

y = 5/2x + 4

Step-by-step explanation:

Midpoint of JK:

x = (-12 + 8)/2 = -4/2 = -2
y = (3 - 5)/2 = -2/2 = -1

Slope of the line JK:

m = (-5 - 3)/(8 - (-12)) = -8/20 = -2/5

Perpendicular lines have negative reciprocal slopes.

So the line r has a slope 5/2 and passes through the point (-2, -1)

Equation of r:

y = 5/2x + b
-1 = 5/2(-2) + b
-1 = -5 + b
b = 5 - 1
b = 4

So the equation is:

y = 5/2x + 4

3 0

3 years ago