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Kay [80]
3 years ago
11

Which expression is equivalent to 99 + 22? A. 11(9) + 2(1) B. 11(9 + 2) C. 9 + 2(11) D. (8 × 9) + (6 × 7)

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

Answer:

B

Step-by-step explanation:

They both equal 121

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PLEASE HELP LOL<br> what type of angles are &lt;4 and &lt;8
Phantasy [73]

Answer:

C. Corresponding angles

Step-by-step explanation:

Visualize the two points of intersection and the four angles around each of them being separated. If you put the on top of each other, you can see that angle 4 corresponds with angle 8.

4 0
3 years ago
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A farmer has 1,200 feet of fencing and wants to fence off a rectangular field that borders a straight river. He needs no fence a
iVinArrow [24]
Yay, derivitives
I'mma ignore that x is the shorter side because I don't know which one has to be shorter yet


we need to find the max area
but with 3 sides

area=LW
let's say the sides are z and y
zy=area

and the relatiionship between them is
hmm,
z+2y=1200
because one side has no fencing
so
z+2y=1200
solve for z
z=1200-2y
sub for z in other

(1200-2y)(y)=area
expand
1200y-2y²=area
take derivitive
1200-4y=dy/dx area
max is where dy/dx goes from positive to negative
solve for where dy/dx=0
1200-4y=0
1200=4y
300=y

at y<300, dy/dx<0
at y>300, dy/dx>0
so at y=300, that is the max

then
z=1200-2y
z=1200-2(300)
z=1200-600
z=600

so then
z=600
y=300
300<600

so the shorter side would be y

so then we see our choices and noticed that
erm
I think it is f(x)=1200x-2x²
takind the derivitive yeilds none of the others


so ya, you are right
6 0
3 years ago
Read 2 more answers
Use the given value to find the value of the other variable that is not provided.
Sedaia [141]

Answer:

Step-by-step explanation:

4(0) + 3y=12

4x0=0

0+3y=12

3 x 4=12

y=4

3 0
3 years ago
What is the complement and supplement of 71°?
goldenfox [79]
Answer: the compliment is 19° (90-71=19). the supplement is 109° (180-71=109)
5 0
2 years ago
there are 13 people on the bus, 4 people get off and 2 people get on, then 6 people get off, if there are 12 people on the bus,
Readme [11.4K]

Answer:

7 people

Step-by-step explanation:

13-4=9

9+2=11

11-6=5

12-5=7

5 0
2 years ago
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