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Yuki888 [10]
3 years ago
12

Evaluate the expression 1/3^-2

Mathematics
1 answer:
AleksAgata [21]3 years ago
6 0

Answer:the answer to this is 9

Step-by-step explanation:

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Line p has a slope of -7/8
Alik [6]

Answer:

The slope of line q is -\frac{7}{8}.

Step-by-step explanation:

We know that line p has a slope of -\frac{7}{8}, and that line p and line q are parallel. Parallel lines always have the same slope. Thus, the slope of line q must be -\frac{7}{8} as well.  

6 0
3 years ago
In ΔABC, BC = 13, CA = 20 and AB = 19. Which statement about the angles of ΔABC must be true?
I am Lyosha [343]

Answer:

m∠B > m∠C > m∠A

Step-by-step explanation:

The angle opposite the largest side in a triangle is the largest, and the angle opposite the shortest side is the smallest.

4 0
2 years ago
Nils is 6 feet tall and he casts a 24 foot shadow. He sees the shadow of a tree next to him and measures it to find the shadow i
denis-greek [22]

Answer:

360

Step-by-step explanation:

24 divided by 6 = 4 which means each foot = 4 foot shadow

90 x 4 =360

4 0
3 years ago
Laura collects nickels and dimes she has a total of 47 nickels and dimes she calculated the value of the coins and found out she
Gre4nikov [31]

Answer:

Number of dimes = 34

Number of nickels = 13

Step-by-step explanation:

Total number of coins = 47

Coins are in the form of nickels and dimes.

Value of a nickel = 5 cents

Value of a dime = 10 cents

Total value of coins = $4.05 or 405 cents

To find:

Number of nickels and dimes?

Solution:

Let number of nickels = x

Money value of nickels = 5x

Let number of dimes = y

Money value of dimes = 10y

Total value of coins = 5x+10y

This value is given as equal as 405.

As per question statement, the equations can be written as:

5x+10y = 405 ..... (1)\\x+ y = 47 ...... (2)

Multiplying equation (2) with 5 and subtracting from equation (1):

10y - 5y = 405 - 235  \\\Rightarrow 5y = 170\\\Rightarrow y = 34

Number of dimes = 34

Number of nickels  = 47 - 34 = 13

6 0
3 years ago
at a sale a desk is being sold for 24% of the regular price. the sale price is $182.40 what is the regular price
san4es73 [151]

at a sale a desk is being sold for 24% of the regular price. the sale price is $182.40 what is the regular price​

we have that

24% ------> represent $182.40

so

Applying proportion

Find out the 100%

Let

x ----> the regular price

182.40/24=x/100

solve for x

x=(182.40)*(100)/24

x=$760

therefore

<h2>The regular price is $760</h2>
8 0
1 year ago
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