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Aleks04 [339]
3 years ago
8

I have been stuck on number 10 (this problem) for a while now. Can anyone help me with it and walk me through every step in orde

r to get a correct answer for the math problem in the picture? Thanks!! I’ll be giving away as many points as I can for a response! It must follow the criteria listed above though. Help and steps.

Mathematics
2 answers:
Serga [27]3 years ago
6 0

You know that a number divided by itself is 1, so this is

\dfrac{7^{-1}\times 7^{-7}}{7^{-7}}=7^{-1}\times\left(\dfrac{7^{-7}}{7^{-7}}\right)\\\\=7^{-1}\times 1=7^{-1}=\bf{\dfrac{1}{7}}

Something to a negative power is the reciprocal of that thing to the opposite positive power.

kotykmax [81]3 years ago
5 0
When you multiply a same number but with different powers, you can simply add the powers together. So, in your question, add the powers -1 and -7 together.
7^(-1) x 7^(-7) = 7^(-8)

When you divide a same number but with different powers, you subtract the power at the top with the power from the denominator. So, -8 - (-7) = -1.
7^(-8) / 7^(-7) = 7^(-1)

So your answer would be 7^(-1).
Hopefully my explanation was clear?
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Identify the systems of equations that have A as their point of interpretation.
PtichkaEL [24]
X/y (3/-1 just look at where the a is if it is o. ln the x axis or y axis then look to see if it's positive or negative
5 0
4 years ago
CAN SOMEONE PLEASE HELP, ILL GIVE BRAINLIEST.
ratelena [41]

Answer:

Line RT || Line VS ∠SRV ≅ ∠TUR - Given/Alternate Interior Angles Theorem

∠TRU ≅ ∠SVR - Corresponding Angles Theorem

ΔRTU ~ ΔVSR - AA Similarity Theorem

Step-by-step explanation:

The statement Line RT || Line VS ∠SRV ≅ ∠TUR is given. This can be explained with the Alternate Interior Angles Theorem. It states that if two parallel lines (TR and VS) are cut by a transversal (∠SRV), then the pairs of alternate interior angles are congruent.

∠TRU and ∠SVR correspond to each other, so that would be the Corresponding Angles Theorem.

That leaves ΔRTU ~ ΔVSR being that away due to the AA Similarity Theorem. It states that states that if two angles of one triangle (∠RTU, ∠URT for example) are congruent to two angles of another triangle (∠VSR, ∠RVS are the congruent angles to the two from before), then the triangles are similar.

5 0
3 years ago
What is the expression for the sum of the first n odd numbers starting<br> 1+3+5+.....
labwork [276]

Answer:

(2n-1)

Step-by-step explanation:

The expression will be (2n-1) where n is the index of the odd number you wanna find

6 0
3 years ago
Read 2 more answers
-5=x/3-8 plz someone help me plz
Flura [38]
Isolate x by adding 8 to both sides.
3 = x/3
Then, multiply by 3 on both sides.
9 = x
To prove that this is right, you can imput 9 into the equation and it equals -5.
5 0
3 years ago
This week Jill spent a total of 100 minutes studying this total was 8 more than four times the amount of minutes she studied las
Sophie [7]

Answer:

23

Step-by-step explanation:

  • 100 minutes - 8 = 92

because it was eight more.

  • 92 divided by 4 = 23

because it was four times the amount .

The answer is 23

3 0
3 years ago
Read 2 more answers
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