4 years ago

I need help please.....

Mathematics

1 answer:

ivolga24 [154]4 years ago

3 0

I hope this helps out

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lawyer [7]

Answer:

angle M corresponds to angle N

Step-by-step explanation:

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3 years ago

Figure ABCD is a trapezoid find the Value of x

valina [46]

Answer:

The value of x is 4

Step-by-step explanation:

we know that

in this problem

$\frac{1}{2}(2x+(3x+10))=15$

solve for x

$\frac{1}{2}(5x+10)=15$

$(5x+10)=30$

$5x=30-10$

$x=20/5=4$

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3 years ago

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IA triangular parking lot is paved outside a new shopping center. The lengths of the sides of the parking lot are 100 meters, 11

Gemiola [76]

Answer:

Step-by-step explanation:

I believe the only way to solve this is by Heron's Formula.

Add up all the sides and divide by 2 to get the semi-perimeter:

113+100+86 = 299

299/2 = 149.5

Now fill in the rest, which looks like this:

$\sqrt{s(s-a)(s-b)(s-c)}$

where s is your semiperimeter value, a is the length of one side, b the length of another side, and c the length of the third side:

$\sqrt{149.5(149.5-113)(149.5-100)(149.5-86)}$

which simplifies to

$\sqrt{149.5(36.5)(49.5)(63.5)}$

which simplifies further to

$\sqrt{17151929.44}$

which, on your calculator, is 4141.49 meters squared (that's rounded to the nearest hundredth).

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3 years ago

Suppose that a class contains 15 boys and 30 girls, and that 10 students are to be selected at random for a special assignment.

natka813 [3]

Prob of selected students times prob of selecting boys times prob of selecting 3 boys
total students = 15b + 30g = 45 students

1. 10s/45t = 0.22
2. 15b/45t = 0.33
3. 3b/15b = 0.2

0.22×0.33×0.2=0.0148

1.48%

I'm not sure 100%... double check answer please

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3 years ago

Write the number 2 and a half million in figures

inysia [295]

The answer is 2 500 000

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4 years ago