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Alenkinab [10]
3 years ago
6

Can you help me ? 70 points

Mathematics
2 answers:
blsea [12.9K]3 years ago
7 0

Answer:

x=5

Step-by-step explanation:

CE = EB since E is the midpoint of CB (proven by AD intersecting it).

If CE=EB, then:

2x=15-x\\

<em>Add </em>x<em> to both sides</em>

3x=15\\

<em>Divide both sides by 3</em>

x=5

LUCKY_DIMON [66]3 years ago
3 0

Answer:

5

Step-by-step explanation:

Since the diagonals of a parallelogram bisect each other, the two halves must be equal. Therefore:

15-x=2x \\\\15=3x \\\\x=5

Hope this helps!

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The length of a rectangle is 8 inches more than the width. The perimeter is 36 inches. Find the length and the width (in inches)
Fofino [41]

Answer: w = 4 and l = 12

Step-by-step explanation:

7 0
3 years ago
D=√(-4-42.78)^2 + (3-44.78)^2
svetlana [45]

The expression is equal to 3sqrt(517)/5

3 0
2 years ago
What are the x-intercepts of 4x^ + 8x - 5
mojhsa [17]
Assuming the exponent is supposed to be "^2" your equation will read:

4x² + 8x - 5

It must set equal to y to be a valid function and the y must be set equal to zero to find x-intercepts.

4x² + 8x - 5 = 0
4x² - 2x + 10x - 5 = 0
2x(2x - 1) + 5(2x - 1) = 0

(2x + 5)(2x - 1) = 0

Set each binomial equal to zero.

2x + 5 = 0
2x = 0 - 5
2x = - 5
Divide both sides by 2
x = - 5/2

2x - 1 = 0
2x = 0 + 1
2x = 1
x = 1/2

Your x-intercepts are x = - 5/2, 1/2 or (- 5/2, 0) and (1/2, 0)
6 0
3 years ago
1. Find the value of 8.3 x 24.2 x 0.03. Round your answer to the nearest hundredth.
MrMuchimi

The rounded value is option B) 6.03 which is rounded to the nearest hundredth.

<u>Step-by-step explanation:</u>

  • To find the value of 8.3 x 24.2 x 0.03, we need to multiply the given numbers to get a decimal value.
  • And then, after getting the value of 8.3 x 24.2 x 0.03 it should be rounded to the nearest hundredth.

<u>So, let's multiply the numbers first :</u>

8.3 × 24.2 × 0.03 = 6.0258

The value is 6.0258

<u>To round the value 6.0258 to the nearest hundredth :</u>

  • The first number next to the decimal point represents the tenth.
  • The second number next to the decimal point is the hundredth.
  • The third number next to the decimal point is thousandth.

Therefore, to round the value to the nearest hundredth, look for the thousandth number is either less than 5 or greater and or equal to 5.

If, thousandth place is greater or equal to 5, then the hundredth number should be increased by 1.

The hundredth is 6.02 and the number in the thousandth place is 5. So add 1 to the hundredth place.

The value is rounded to 6.03 to the nearest hundredth.

5 0
3 years ago
HELP PLEASE 25 points! y=-1/4(x+2)^2+1 vertex: axis: y-int: and then graph it
kolezko [41]

Answer:

x=-1/4

Step-by-step explanation:

this might be wrong

5 0
3 years ago
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