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irina1246 [14]
2 years ago
6

An algebraic expression that may contain numbers, variables, and exponents.

Mathematics
1 answer:
erica [24]2 years ago
3 0

Answer:

3x^2 + 7xy + 5

Step-by-step explanation:

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You buy a piece of candy for 13 cent and have the cashier a dollar how much change will you get back?
Inessa [10]

Answer:

87 cent?......................

Step-by-step explanation:

^^

6 0
3 years ago
Read 2 more answers
At 2:00 pm there are 350 freshmen and 200 sophomores at a school carnival. After 2:00 pm 20 freshman leave every hour and 35 sop
dmitriy555 [2]

Answer:

160:340

Step-by-step explanation:

The hours between 2:00pm and 4:00pm is 2 hours. If originally 350 freshman and 200 sophomores are at the carnival, and 20 freshman leave every hour, we can determine how many freshman left in 2 hours:

=20\cdot{2}=40

and if 35 sophomores arrive every half our, we know that for every two hours there is 4 half hours, therefore:

=35\cdot{4}=140

The amount of freshman at 4:00pm:

200-40=160

and the amount of sophomores:

200+140=340

the ratio is 160:340

5 0
3 years ago
Read 2 more answers
the angle of elevation of the top of a building from a point 80 ft away from the building on level ground is 70° determine the b
MA_775_DIABLO [31]
Draw a triangle with shortest side on the ground (horiz.).  The length of this side is 80 feet.  Two angles touch the ground:  a right angle, and the 70 degree angle.
 
Then the height of the building is the 2nd shortest side.

The tangent function is the appropriate one to use here:
                       opp          h
tan 70 deg = -------- = ----------
                        adj        80 ft
                                                                h
Since tan 70 deg  = 2.75,          2.75 = -------
                                                              80 ft

so h = building height = (80 ft)(2.75) = 219.8 ft
6 0
3 years ago
Simplify the algebraic expression.<br> 2v−8(3+2v)
ra1l [238]

Answer: -14v-24

Step-by-step explanation:

2v-8(3+2v)

2v-(24+16v)

2v-24-16v

-14v-24

3 0
2 years ago
Read 2 more answers
What is y+3=4(x-1) in Slope intercept form ?
mina [271]
Y+3=4(x-1)
Y+3=4x-4
-3 -3
Y=4x-7
3 0
3 years ago
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