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beks73 [17]
3 years ago
8

Determine if the statement is true or false.

Mathematics
1 answer:
likoan [24]3 years ago
5 0

Answer:3: If a linear system has the same number of equations and variables, then it must have a unique solution.

Step-by-step explanation:just this which correct

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Math Review 7th Grade. 2 Parts
miv72 [106K]
Here is the answer Ik 7th grade can be hard sometimes

8 0
3 years ago
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Two times antonio's age plus three times sarah's age equals 34. Sarah's age is also 5 times antonio's age. how old is sarah
Sidana [21]
Sarah's 10 years old.
Antonio's 2 years old.

2 x 2 = 4
10 x 3 = 30
4 + 30 = 34

2 x 5 = 10
4 0
4 years ago
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No links or anything
Soloha48 [4]

Answer:

1. 38, 80, 89 and 4. 14, 15, 29

I don't know if there is supposed to be only one, but both of those do not form right triangles.

Step-by-step explanation:

Evaluate all of them and see if they meet the requirements of the Pythagorean Theorem, a² + b² = c².

1. 38, 80, 89

a² + b² = c²

38² + 80² = 89²

1444 + 6400 = 7921

7844 ≠ 7921.

This is an answer because it doesn't satisfy the Pythagorean Theorem.

2. 16, 63, 65

a² + b² = c²

16² + 63² = 65²

256 + 3969 = 4225

4225 = 4225

This isn't the answer because it satisfies the Pythagorean Theorem.

3. 36, 77, 85

a² + b² = c²

36² + 77² = 85²

1296 + 5929 = 7225

7225 = 7225

This isn't the answer because it satisfies the Pythagorean Theorem.

4. 14, 15, 29

a² + b² = c²

14² + 15² = 29²

196 + 225 = 841

421 ≠ 841

This is an answer because it does not satisfy the Pythagorean Theorem.

6 0
3 years ago
Joni earned $0.625 per day for two days as interest on her $1,000.00 investment. What percent interest did she earn in total? Gi
Kitty [74]

Joni’s total interest earned is 0.125% of her investment.

<u>Solution:</u>

Given that

Interest earned by Joni per day = $0.625

Investment done by Joni = $1000

Duration of earning interest = 2 days  

Total interest earned = interest earned by Joni \times duration of interest earned.

= 0.625 \times 2 = $1.25

\text { Percentage of interest earned }=\frac{\text {total interest earned}}{\text {investment done}} \times 100

=\frac{125}{1000} \times 100=0.125 \%

So Joni’s total interest earned is 0.125% of her investment.

4 0
3 years ago
What are the domain and range of the function
____ [38]

Answer:

Step-by-step explanation:

I don't say u must have to mark my ans as brainliest but if it has really helped u plz don't forget to thank me my frnd..

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3 years ago
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