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marissa [1.9K]
3 years ago
9

Uhm I have no idea how to answer this I’ve been trying for the past like 3 days

Mathematics
2 answers:
ycow [4]3 years ago
5 0
................................
Svet_ta [14]3 years ago
3 0
(Aren't two column proofs the best? I used to shred a paper when a question asked me to write proof, back in Geometry class)

So I assume the check mark mean you got that part correct. For the first statement, it should be correct, and I don't know why it isn't marked right. 

Step three is basically the same exact thing as step two, so perhaps, don't add that step. 

For me, the question is asking something that is so simple, that it could be solved with basic LOGIC. 

However, since its asking us to write a "proof," here's my "fabulous" two column proof:

<ABC = <DEF - Given
<GHI = <DEF - Given
<ABC = GHI - Transitive property.

Overall, I have really negative feelings toward proofs because most of the time, the use of all these stupid theorems and postulates is dumb.
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If f(x) = x² + 7, what is the value of f(4)? Enter the answer in the box. PLEASE HELP .
bazaltina [42]

Answer:

23

Step-by-step explanation:

With f(4), we plug 4 into the function.

f(4) = 4² + 7

f(4) = 16 + 7

f(4) = 23

7 0
3 years ago
Find a Job !!20 POINTS!!
NeTakaya
Cashier at target would be the best option
Weekly check would get you $173.25
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Hope this helps
5 0
2 years ago
Read 2 more answers
Plz answer I really need it
satela [25.4K]
It’s option C I believe.
8 0
3 years ago
Akira receives a prize at a science fair for having the most informative project. Her trophy is in the shape of a
AlekseyPX

Answer:

45 square inches

Step-by-step explanation:

Akira receives the prize at the science fair for having the most informative project her trophy is in the shape of a square pyramid and is covered in shiny gold foil how much gold foil did it take to cover the trophy including the bottom

Total surface  =  surface area of the base square + area of 4 triangles

Calculate the surface area of the base square

surface area of the square =  s^2

where s= side length

s=3 in

The surface area of the base  =s^2

=3^2

= 9 square inches

The surface area of the side triangles

The area of the triangle = (1/2)* side length* slant height

Side length=3 in

Slant height=6 in

substituting the values,

The area of the triangle =1/2*3*6

= 18/2

= 9 square inches

There are 4 triangles

The area of 4 triangles  =  4 x 9  

= 36 square inches

Therefore,

Total surface  =  surface area of the base square + area of 4 triangles

=  9 + 36

= 45 square inches

6 0
3 years ago
Noel has rowing lessons every 5 days and guitar lessons every 6 days. If he had both lessons on the last day of the previous mon
bixtya [17]

Answer:

Since every 30 days  he  wil have both lessons on the same day , and  he already  had both lessons on the last day of the previous month, that means that the day 30  the current month   he  wil have both lessons on the same day (It may be the last day if the month has 30 days or it may not be the last day if the month has 31 days)

Step-by-step explanation:

Lets find the least common factor of 5 and 6

Multiples of 5

5  10  15  20  35  30  35  40......

Multiples of 6

6  12  18  24  30 36  

LCF of 5 and 6 = 30

Every 30 days  he  wil have both lessons on the same day

3 0
3 years ago
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