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Lemur [1.5K]
2 years ago
6

Help me pls and pls explain

Mathematics
1 answer:
andrey2020 [161]2 years ago
5 0

Answer:

Step-by-step explanation:

I am not clear your question.

5^(-2) / ( 5^(-3) * 5^(4))

When base is equal at multifaction index should be add.

ie. (-3)  + 4 =1

5^(-2) / ( 5^((-3) +4))

5^(-2) / ( 5^(1))

When base is equal at division index should be substract.

5^(-2) / ( 5^(1))

5^((-2 )+ (-1) )

5^(-3)

We know a^(-2)= 1/ a^2

1/ 5^(3)

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A garden table and a bench cost S585 combined. The garden table costs S65 less than the bench. What is the cost of the bench?
garik1379 [7]

Answer:

Bench costs $325

Step-by-step explanation:

Try setting up an equation

x = cost of garden table

y = cost of bench

equation 1: x + y = 585

We also know that the table costs 65 dollars less than the bench.

cost of garden table = bench - 65

or

equation 2: x = y - 65

Now just substitute equation 2 into equation 1

(y-65) + y = 585

and solve for y

2y-65 = 585

2y = 585 + 65 = 650

y = 325 = cost of bench

8 0
2 years ago
A line goes through the point (6,–2) and has a slope of –3.
Mama L [17]
Y = mx + b
slope(m) = -3
(6,-2)...x = 6 and y = -2
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-2 = -3(6) + b
-2 = -18 + b
-2 + 18 = b
16 = b
so ur equation for this line is : y = -3x + 16

(a,7)......so y = 7......" a "  is gonna be x

y = -3x + 16
7 = -3x + 16
7 - 16 = -3x
- 9 = -3x
-9/-3 = x
3 = x..........so " a " is gonna be 3 <===
3 0
3 years ago
Read 2 more answers
The KLM that is measure 220 is a reflex angle the opposite angle it obtuse find the measure of obtuse
RideAnS [48]
220-360 is equal to 140 degrees is that what you mean
7 0
2 years ago
Use the formula for the probability of the complement of an event. A coin is flipped 4 times. What is the probability of getting
raketka [301]

Answer: 15/16

Step-by-step explanation:

There will be 16 outcomes for 4 coins=2^4

Probability of only head is : P(C)=1/16

P(C) + P(C') = 1

P(C') = 1 - P(C)

P(C') = 1 - 1/16

Take the l.c.m

P(C') = (16-1) / 16

P(C') = 15/16

So the probability of getting at least 1 tail is 15/16

7 0
3 years ago
The measure of angle x= _ degrees
SpyIntel [72]

Answer:

X=90°

Y=37°

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Step-by-step explanation:

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X=Right angle

Z=Angles in a triangle add up to 180°

7 0
2 years ago
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