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3 years ago

Do anyone knows this ???

Mathematics

1 answer:

BARSIC [14]3 years ago

5 0

Answer

C. Triangles 1 and 4

D. Triangles 1 and 2

E. Triangles 2 and 4

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Name 5 decimal numbers that are between 4.78 and 4.79. Explain your answer.

Karolina [17]

4.781, 4.782,4.783,4.784,4.785

I can't explain though:(

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3 years ago

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I really don't know where to go with this. I just need help with it fast. because idk what I'm doing I'm giving max points.

kow [346]

Y=ax+b
a... slope
b... interception on the line y

you get the equation y=-1/2 *x + 12

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3 years ago

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Urgent Math Help Needed ASAP

Marta_Voda [28]

Answer:

Fourth option: 30 days

Step-by-step explanation:

We three path to complete the project:

Path A:

A1 → A2 → A3

10 days → 8 days → 9 days = 27 days

Path B:

B1 → B2 → B3

2 days → 7 days → 3 days = 12 days

Path C:

C1 → C2 → C3

10 days → 8 days → 12 days = 30 days

Then the duration of the critical path is 30 days, we can't conclude the project until each path has finished

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3 years ago

Solve the inequality 2x>30+5/4x

insens350 [35]

Answer:

Step-by-step explanation:

$2x > 30+\frac{5}{4x} \\2x-\frac{5}{4x} > 30\\\frac{8x^2-5}{4x} > 30\\case~1\\if~x > 0\\8x^2-5 > 120x\\8x^2-120x > 5\\x^2-15x > \frac{5}{8} \\adding~(-\frac{15}{2} )^2~to~both~sides\\(x-\frac{15}{2} )^2 > \frac{5}{8}+\frac{225}{4} \\(x-\frac{15}{2} )^2 > \frac{455}{8} \\x-\frac{15}{2} < -\sqrt{\frac{455}{8} } \\x < \frac{15}{2}-\sqrt{\frac{455}{8} } \\or~x < 0\\rejected~as~x > 0$

$x-\frac{15}{2} > \sqrt{\frac{455}{8} } \\x > \frac{15}{2} +\sqrt{\frac{455}{8} }$

case~2

$if~x < 0\\8x^2-5 < 120x\\8x^2-120x < 5\\x^2-15x < \frac{5}{8} \\adding~(-\frac{15}{2} )^2\\(x-\frac{15}{2} )^2 < \frac{5}{8} +(-\frac{15}{2} )^2\\|x-\frac{15}{2} | < \frac{5+450}{8} \\-\sqrt{\frac{455}{8} } < x-\frac{15}{2} < \sqrt{\frac{455}{8} } \\\frac{15}{2} -\sqrt{\frac{455}{8} } < x < \frac{15}{2} +\sqrt{\frac{455}{8} } \\but~x < 0\\7.5-\sqrt{\frac{455}{8} } < x < 0$

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2 years ago

Which lines are parallel to 8x+2y

sashaice [31]

Answer:

If its a line withe 8x as one of the factors in the mx position of y=mx+b then its parrallel

Step-by-step explanation: Hopeit helped

For example y=8x+2y is parallel to y=8x+3y

5 0

3 years ago