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Radda [10]
4 years ago
14

The cost​ T, in hundreds of​ dollars, of tuition and fees at many community colleges can be approximated by Upper T equals one h

alf c plus 1
​, where c is the number of credits for which a student registers. Graph the equation and use the graph to estimate the cost of tuition and fees when a student registers for 2 three​-credit courses.
Mathematics
1 answer:
Rainbow [258]4 years ago
7 0
Course set of 8 and 2/3rds
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Evaluate.<br> (x + 4). 2 - x for x = 6<br> 54<br> 74<br> 0<br> 14
Scrat [10]

Answer: 74

Step-by-step explanation:

Substitute x=6 into the expression

(x+4) . 2^3 -6

Add the numbers

(6+4) . 2^3- 6

10 x 2^3 -6

Evaluate the power

10 x 2^3 -6

10 x 8-6

Multiply the numbers

10 x 8-6

80-6

Subtract the numbers

80-6

74

3 0
4 years ago
A parallelogram has sides 20cm and 30cm with an angle of 80 between the two sides. What is the length of each of the diagonals?
Lelu [443]

Answer:

length of diagonals are BD = 33.039 cm and AC = 38.84 cm

Step-by-step explanation:

given,

sides of parallelogram is 20 cm and 30 cm

Angle between them is 80°. opposite angle of parallelogram are same the opposite angle is same.

other angle  = 360° - 80° - 80° + 2 x = 200

                                        x = 100°

Using cosine law

c² = a² + b² - 2ab cos γ

In ΔDAB

BD² = 30² + 20 ² - 2 × 30 × 20 cos 80°

BD = 33.039 cm

now in ΔADC

c² = a² + b² - 2ab cos γ

AC² = 20² + 30² - 2 × 30 × 20 cos 100°

AC = 38.84 cm

length of diagonals are BD = 33.039 cm and AC = 38.84 cm

6 0
3 years ago
Find the value of x, for which : (81) -4 ÷ (729) 2-x = 9 /4x​
tamaranim1 [39]

Answer:

\huge{x =  \frac{236164}{9477}  = 24 \frac{8716}{9477}}

Step-by-step explanation:

(81) - 4 \div (729)2 - x =  \frac{9}{4} x

81 -  \frac{4}{729}  \times 2 - x =  \frac{9}{4} x

81 -  \frac{8}{729}  - x =  \frac{9}{4} x

\frac{59041}{729}  - x =  \frac{9}{4} x

236164 - 2916x = 6561x

- 2916x - 6561x =  - 236164

- 9477x =  - 236164

\boxed{\green{x =  \frac{236164}{9477}  = 24 \frac{8716}{9477}}}

4 0
3 years ago
Pls i need help real fast i have 3 min to submit this
Neko [114]

Answer:

I was having trouble submitting a text answer, so I attached a file. Hope it helps.

Step-by-step explanation:

6 0
2 years ago
The equation for line s can be written as y = x + 3. Line t, which is parallel to line s,
arlik [135]

Answer:

y=x-1

Step-by-step explanation:

6 0
3 years ago
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