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lions [1.4K]
2 years ago
6

Find the missing exponent. Set up an equation and solve. : x^4·x^n = x^5

Mathematics
1 answer:
Assoli18 [71]2 years ago
7 0
Use\ a^n\cdot a^m=a^{n+m}\\\\x^4\cdot x^n=x^5\\\\x^{4+n}=x^5\iff4+n=5\ \ \ |subtract\ 4\ from\ both\ sides\\\\\boxed{n=1}
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I don’t understand this problem at all.
harina [27]
<h3>The answer is:</h3><h2>D. 5 hours</h2><h2 />

The equation should be:

(70x) - (20x) = 250

Because we have all the possible answers, we can plug one of them into x to see if it equals 250 miles.

Use an educated guess. I'm going to go with 5 because it seems reasonable.

(70 * 5) - (20 * 5) = 250

Let's check to see if it equals 250:

  • 70 * 5 = 350
  • 20 * 5 = 100
  • 350 - 100 = 250

Therefore, the answer is D. 5 hours.

(Please mark as Brainliest! It helps me level up. Have a nice day!)

-Lena

7 0
2 years ago
Read 2 more answers
PLEASE HELP ITS MATH
xxMikexx [17]

Answer:

y=[-4]x+[10]

Step-by-step explanation:

For a line to be perpendicular to another it must have the reverse reciprocal of the opposite line, to find the reverse reciprocal you take your slope, flip the numerator and denominator, and multiply it by -1.

The slope \frac{1}{4} turns into \frac{4}{1} and is then multiplied by -1 to become \frac{-4}{1} which can be simplified down to: -4

Now that we know the slope we need the line to pass through a point, so we will use point slope form:

y-y1=m(x-x1)
Substitute in our slope and point values:

y-2=-4(x-2)

Now solve for y:

y-2=-4(x-2)\\y-2=-4x+8\\y=-4x+10

Then you will find that line y=-4x+10 runs perpendicular to y=\frac{1}{4}x-8 and intersects point (2,2).

3 0
2 years ago
-. Which statement is true?
STatiana [176]

Answer:

All rectangles are quadrilaterals

Step-by-step explanation:

8 0
3 years ago
Soryyyyyyyyyyyyyy this one to
alukav5142 [94]
The answer is B - 43.25


The two congruent sides will have congruent angles. One angle measurement is given. Triangle angles equal 180.

Take 180 and subtract the given angle 93.5. Then divide by 2 to get the measurements x and the other unknown.

180 - 93.5 = 86.5

86.5/2 = 43.25
5 0
2 years ago
+
Aloiza [94]

Answer:

tell ur teacher am not sure about the question

5 0
3 years ago
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