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bearhunter [10]
3 years ago
7

Please help me how i start and what the answer step by step

Mathematics
2 answers:
rewona [7]3 years ago
6 0
Area of a triangle = 1/2 * (base * height)
Base = 9.9 cm
Height = 4.9 cm
So, Area of Δ = 1 / 2 * (9.9 * 4.9)
Area of Δ = 1 / 2 * (48.51)
Area of Δ = 48.51 / 2
Area of Δ = 24.3 cm²

Perimeter = total distance round the Δ
Perimeter = a + b + c
Perimeter = 5.26 + 9.37 + 9.9
Perimeter = 24.53 cm

The type of triangle here is Scalene because all the sides are not equal. Therefore, it is a Scalene triangle.




eimsori [14]3 years ago
4 0
Area is base * height /2 perimeter is u add them all up I think
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Solve 4(3x+3)=15x+7-3x+5
Flura [38]

Answer:

Infinite amount of solutions

Step-by-step explanation:

Step 1: Write equation

4(3x + 3) = 15x + 7 - 3x + 5

Step 2: Solve for <em>x</em>

  1. Distribute 4: 12x + 12 = 15x + 7 - 3x + 5
  2. Combine like terms: 12x + 12 = 12x + 12
  3. Subtract 12 on both sides: 12x = 12x
  4. Divide both sides by 12: x = x

Here, we can see that <em>x</em> would be infinite amount of solutions. We can plug in any number <em>x</em> and it would render the equation true.

4 0
3 years ago
Help I need help on this question
Natali [406]

Answer:

56.4 degrees

Step-by-step explanation:

90 degrees - 33.6 degrees = 56.4 degrees

3 0
3 years ago
Read 2 more answers
Use mental math to solve the equation w - (-3) = 7 please help
tester [92]

w-(-3)=7

Pretend that there is a -1 in front of the bracket

w-1(-3)=7

Mutiply the bracket by -1

(-1)(-3)=3

w+3=7

Move +3 to the other side. Sign changes from +3 to -3.

w+3-3=7-3

w=4

Answer: w=4

8 0
3 years ago
What is 247,039 rounded to the nearest thousand
DerKrebs [107]
<span><u><em>Answer:</em></u>
247,000

<u><em>Explanation:</em></u>
To round a number to the nearest thousand, we check the digit in the <u>hundreds position</u>:
1- If the digit is <u>less than 5</u>, then we round down. This means that we simply convert all digits after the thousands to zero and that's it
2- If the digit is <u>equal to or more than 5</u>, then we round up. This means that we add one to the thousands digit and then convert all digits after the thousands to zero.

In the given number 247039, the number in the hundreds position is 0. This means that we will <u>round down
</u>
Therefore, 246039 rounded to the nearest thousand would simply give 247000

Hope this helps :)</span>
6 0
2 years ago
A sample of 40 batteries is taken from a case of 400. Thirty-seven of the batteries in the sample are good, and three are defect
barxatty [35]
The answer is option E i.e., 1 because we know that there are 3 defective batteries in the case so the probability will never be 1 for this case.
8 0
3 years ago
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