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seraphim [82]
3 years ago
12

25 Points:PLEASE HELP ASAP

Mathematics
2 answers:
vesna_86 [32]3 years ago
6 0

Answer:

what do you need help with?

Step-by-step explanation:

What is it you need help with?

Viktor [21]3 years ago
3 0

Answer:

no prob

Step-by-step explanation:

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Solve.<br><br> 24 + d = 30<br><br> d =
antoniya [11.8K]

Answer:

I think d = 6 because 24 + 6 = 30

4 0
3 years ago
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Help is appreciated with the question that is in the image below
lesya [120]

Answer:

x = ±i, x = -3, and x = -1

Step-by-step explanation:

If x = -1 is a solution, then x + 1 is a factor.  Using grouping:

x⁴ + 4x³ + 4x² + 4x + 3 = 0

x⁴ + 4x³ + 3x² + x² + 4x + 3 = 0

x² (x² + 4x + 3) + x² + 4x + 3 = 0

(x² + 1) (x² + 4x + 3) = 0

(x² + 1) (x + 3) (x + 1) = 0

All the solutions are x = ±i, x = -3, and x = -1.

3 0
4 years ago
A test to detect an infection gives a positive result 98% of the time if a person is infected, and it is 97% accurate for people
Mrrafil [7]
The answer is c.) 2%. Since the question is talking about false negatives, meaning the chance that the results are false, then we take a look at the 98% which represents the chance of giving an accurate result for the people who are not infected meaning for those who are positive. Thus, the answer is 2% because this is the remaining percentage if 100-98%.
8 0
4 years ago
The sum of 3 consecutive odd integers is 18 less than five times the middle number. Find the three integers
Andreyy89

n, n + 2, n + 4 - three consecutive odd ntegers

n + (n + 2) + (n + 4) = 5(n + 2) - 18     |use distributive property

n + n + 2 + n + 4 = (5)(n) + (5)(2) - 18

3n + 6 = 5n + 10 - 18

3n + 6 = 5n - 8     |subtract 6 from both sides

3n = 5n - 14     |subtract 5n from both sides

-2n = -14    |divide both sides by (-2)

n = 7

n + 2 = 7 + 2 = 9

n + 4 = 7 + 4 = 11

Answer: 7, 9, 11.

8 0
3 years ago
Find the PERIMETER and the AREA of the following figure,<br> 16 ft<br> 8 ft<br> 10 ft
Fed [463]

9514 1404 393

Answer:

  • perimeter: 36 +16√5 ft ≈ 71.777 ft
  • area: 288 ft²

Step-by-step explanation:

<u>Perimeter</u>

The perimeter is the total length of all the sides. The length of the horizontal sides is 8 ft + 10 ft = 18 ft. The length of the slant sides can be found using the Pythagorean theorem. For side length s, we have ...

  s^2 = 8^2 + 16^2

  s^2 = 64 +256 = 320

  s = √320 = 8√5

Then the perimeter is ...

  P = 2(8√5 + 18) = 36 +16√5 ≈ 71.777 . . . feet

__

<u>Area</u>

The area is given by the formula ...

  A = bh

where b is the base and h is the height.

  A = (18 ft)(16 ft) = 288 ft²

4 0
3 years ago
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