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kifflom [539]
3 years ago
8

Help me plzzzzzzzzzzzzzzzzzzzz

Mathematics
2 answers:
Reptile [31]3 years ago
8 0

Answer:

Step-by-step explanation:

f(-3)=-(-3)²+7(-3)-13

     =-9-21-13

     =-43

Strike441 [17]3 years ago
7 0

Answer:

Step-by-step explanation:

f(x)=-x^2+7x-13\\ \\ f(-3)=-(-3)^2+7(-3)-13\\ \\ f(-3)=-(9)-21-13\\ \\ f(-3)=-43

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What is the pattern with these letters<br> J, F, M, A, M
klemol [59]

Answer:

The pattern is:

Step-by-step explanation:

they are the first letters of each month in the year -

J - January

F- Febuary

M - March

A - April

M - May

Continuing...

J - June

J - July

A - August

S - September

O - October

N - November

D - December

3 0
2 years ago
All the dimensions of a pentagon were multiplied by the same factor, and the area of the figure changed by a factor of 25. By wh
elena-s [515]

5


reason is because if you’re pentagon has lines of 5 then the area would be 25
8 0
2 years ago
A ratio of boys to girls in the classroom is 4 to 5if there are 20 girls in the class how many boys would there be? Explain your
sergey [27]
16 because 5 times 4 = 20 there for you multiply 4 times 4 to get 16
6 0
2 years ago
Read 2 more answers
2•(3 (5+2) - 1) Geometry Math.​
bagirrra123 [75]

Answer:

40

Step-by-step explanation:

2 • (3(5 + 2) - 1) =

Start with the innermost parentheses.

= 2 • (3(7) - 1)

Now do the multiplication inside the parentheses.

= 2 • (21 - 1)

Do the subtraction inside the parentheses.

= 2 • 20

= 40

3 0
3 years ago
1000 coins are tossed find the probability of getting exactly 500 heads.
ipn [44]

Answer:

probability of getting exactly 500 heads= 1

Step-by-step explanation:

If a coin is tossed, the probability of obtaining a head = 0.5

If a coin is tossed, the probability of obtaining a tail= 1- probability of obtaining a head

If a coin is tossed, the probability of obtaining a tail=1-0.5

If a coin is tossed, the probability of obtaining a tail=0.5

So if 1000 coin are tossed, the probability of getting exay 500 heads which is already the half of 1000 is 1

5 0
3 years ago
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