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Zigmanuir [339]
3 years ago
5

2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5

Mathematics
1 answer:
Strike441 [17]3 years ago
6 0
<span>2r2 + 3s3 − r2 + 4t2 − r2
</span>
= 19
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Akimi4 [234]

Answer:

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3 0
2 years ago
Which expression is equivalent to 3 + 3/8 − 1/2 ?
andreyandreev [35.5K]

Answer:

2 and 7/8

Step-by-step explanation:

3 + 3/8 - 1/2

3 + 3/8 - 4/8

3 - 1/8

2 and 7/8

5 0
3 years ago
One spinner is divided into five equal sections numbered 1 to 5. A second spinner is divided into seven equal sections numbered
krek1111 [17]

Answer:

35 outcomes

Step-by-step explanation:

Multiply the number of section  of both spinners

5×7= 35

8 0
3 years ago
The shortest side of a right triangle measures 11m. The lengths of the other two sides are consecutive integers. Find the length
uranmaximum [27]
Interesting question.  Let the 2 unknown sides be x and x+1.
Then (11 m)^2 + x^2    = sum of the squares of the 2 shortest sides
                                     = (x+1)^2


121 + x^2 = x^2 + 2x + 1.  Then 121 = 2x + 1, and 2x = 120, or x = 60.

Then the hyp. has length 60+1= 61.

We must check these results.  Using the Pyth. Thm. (a^2 + b^2 = c^2),

11^2 + 60^2 = 61^2
121 + 3600 =  3721     This is true, so our answers are correct.

The longer side is 60 and the hyp. has length 61. 
4 0
3 years ago
Anita ran 3 miles in 33 minutes. Write and solve a multiplication equation to find out how long it took Anita to run each mile i
zhuklara [117]
It took 11 minutes because 3 times 11=33
8 0
3 years ago
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