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Dahasolnce [82]
3 years ago
15

Help with these im posting more so check

Mathematics
1 answer:
UkoKoshka [18]3 years ago
4 0

Answer:

9 is c

10 is b

i think the last one is a but not too sure

Step-by-step explanation:

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2x+5 is greater than 50
katrin2010 [14]
2x+5=50
-5 -5
—————-
2x = 45
Divide by 2
45/2 = 22.5
I hope this makes sense
6 0
3 years ago
Read 2 more answers
Today the price of a new cell phone is $129 in 2000 the price of a similar cell phone was $240 what is the percent of the change
netineya [11]

Answer:

46.25% is the percent of the change in the price of a cell phone from 2000 to today.

Step-by-step explanation:

Cost of a cell phone in the year of 2000. C= $240

Cost of a same cell phone today, C'= $129

The percent of the change in price:

\frac{C-C'}{C}\times 100:

\frac{\$240-\$129}{\$240}\times 100=46.25\%

46.25% is the percentage of the change in the price of a cell phone from 2000 to today.

5 0
3 years ago
The vertex of f(x) = 3x ^2+ 5x + 2 is a:<br> minimum<br> maximum<br> none of these
timama [110]

Answer:

minimum

Step-by-step explanation:

Given a quadratic in standard form f(x) = ax² + bx + c ( a ≠ 0 )

• If a > 0 then vertex is a minimum

• If a < 0 then vertex is a maximum

f(x) = 3x² + 5x + 2 ← is in standard form

with a = 3

Since a > 0 then vertex is a minimum

6 0
3 years ago
If m RDC = 120°, then m DAC=?
monitta
The correct answer to this question is 240

From the image i've seen, the RDC has an angle of 120. So the major arc DC (that passes A and B) has an angle of 240.

So this makes that the measure of the angle of DAC is 240 because of the angle formed by RDC which is 120.
7 0
3 years ago
Read 2 more answers
The dietitian uses 35 six-ounce glasses and 50 eight-ounce glasses at breakfast. Represent in fraction form the relationship of
koban [17]
35 6ouc 50 8ouc So I guess u just ad all the number s they gaveu lodkfh
6 0
3 years ago
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