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rosijanka [135]
3 years ago
10

Need help ASAP plzzzzzzzzzz

Mathematics
2 answers:
alexandr1967 [171]3 years ago
5 0

Answer:

6.09

Step-by-step explanation:

You would multiply 4.2 and 2.9 then divide by 2 to get the area of the triangle

4.2×2.9= 12.18÷2= 6.09

Harlamova29_29 [7]3 years ago
4 0

Answer: I really dont know sorry

Step-by-step explanation:

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Estimate the quotient 8 1/6 / 1 7/8
wlad13 [49]
<span>4 <span>16/ 45 this website will help you with all your math problem :</span></span>https://www.hackmath.net/en/calculator/fraction?input=8+1%2F6+%2F+1+7%2F8&submit=Calculate
7 0
3 years ago
7 girls audition for 12 roles in a school play. What is the probability that at least 2 of the girls audition for the same part?
Sophie [7]

Answer:

Step-by-step explanation:

This is one minus the probability that all the girls audition for different roles. The total number of ways of assigning roles to the girls is 12^7, because to each of the 7 girls, you have a choice of 12 roles.

Then if each girl is to receive a different role, then there are 12!/5! possibilities for that. If you start assigning roles to the girls, then for the first girl, there are 12 choices, but for the next you have to choose one of the 11 different ones, so 11 for the next, and then one of the 10 remaining for the next etc. etc., and this is 12*11*10*...*6 = 12!/(12-7)! =12!/5!

The probability that a random assignment of one of the 12^7 roles would happen to be one of the 12!/5! roles where each girl has a different role, is

(12!/5!)/12^7 = 12!/(12^7 5!)

Then the probability that two or more girls addition for the same part is the probability that not all the girls are assigned different roles, this is thus:

1 - 12!/(12^7 5!)

6 0
3 years ago
Does anyone know how to do this ?
goldenfox [79]

Answer: D) 32

Step-by-step explanation:

The area of a parallelogram equals its base times its height. Substitute the base and area into this formula to solve for the height:

A=bh

40=(5)(h)

h=8

If ABCD is a parallelogram, opposite sides are parallel, so AB is parallel to DC. If AB is parallel to DC, EB is parallel to DC. Since EB is parallel to DC, quadrilateral EBCD has at least one pair of parallel sides, making it a trapezoid. The area of a trapezoid is equal to \frac{h(b_{1}+b_{2})  }{2} where h is the height, b_{1} is one base, and b_{2} is the other base. Plug the necessary values into the formula:

A=\frac{h(b_{1}+b_{2})  }{2}

b_{1} =AB-AE\\DC=AB\\b_{1} =DC-AE\\b_{1} =5-2\\b_{1} =3

b_{2} =5

h=8

A=\frac{8(3+5)}{2}

A=32

The answer is D) 32.

6 0
2 years ago
Helpp!!!!!!!!!!!!!!!!!!
nekit [7.7K]
I think it’s X+12=-15
6 0
2 years ago
Read 2 more answers
Consider the function f(x)=49.5(0.82)x select the correct word or phrase to complete each statement
Alex_Xolod [135]

Answer: exponential decay and 18%

Step-by-step explanation: Since what is in the parentheses is less than 1, it is exponential decay

3 0
3 years ago
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