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solmaris [256]
3 years ago
6

Erin made a line plot of the amount of time she practiced shooting free throws each day in the past 10 days. : time spent practi

cing (hours): 1/4-0, 1/2- 1, 3/4-2, 1-3, 1 1/4-2, 1 1/2-1, 1 3/4-0, 2-1, 2 1/4-0: what is the difference between the greatest and least times Erin practiced shooting free throws?: 1 hour, 1 1/2 hours, 1 1/4 hours, 2 hours?

Mathematics
1 answer:
marysya [2.9K]3 years ago
6 0

Answer:

(B)1 1/2 hours

Step-by-step explanation:

Greatest Time Spent Practicing = 2 Hours

Least Time spent Practicing = 1/2 Hour

Difference between the greatest and least times Erin practiced shooting free throws

= 2- 1/2

=1 1/2 hours

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denis-greek [22]

Answer:

\large \boxed{\sf \ \ -3x^3-x^2+x+18 \ \ }

Step-by-step explanation:

Hello, please consider the following.

(f-g)(x)=f(x)-g(x)=x^2-3x+9-(3x^3+2x^2-4x-9)\\\\=x^2-3x+9-3x^3-2x^2+4x+9\\\\=\boxed{-3x^3-x^2+x+18}

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

5 0
3 years ago
4. Mario was asked to find the GCF of 15, 30, and 45. What number did he find? A. 15 C. 45 B. 30 D. 60
SVETLANKA909090 [29]
4. is A 15
5. is C 12
6. is B 4, 8, 12, 16

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7 0
2 years ago
Read 2 more answers
Simplify:(36^(-1/4)x9^(3/4))^-2
telo118 [61]
The answer is 121 because if you add,multiply, and divide, you will be ableto find the answer

4 0
3 years ago
If x^2+1/x^2=3 find the value of x^2/(x^2+1)^2<br> Express answer as a common fraction.<br> Thanks!!
timama [110]

x^2+\dfrac1{x^2}=3\implies x^4+1=3x^2\implies x^4-3x^2+1=0

By the quadratic formula,

x^2=\dfrac{3\pm\sqrt5}2\implies x^2+1=\dfrac{5\pm\sqrt5}2

Then

(x^2+1)^2=\dfrac{25\pm10\sqrt5+5}4=\dfrac{15\pm5\sqrt5}2

\implies\dfrac{x^2}{(x^2+1)^2}=\dfrac{\frac{3\pm\sqrt5}2}{\frac{15\pm5\sqrt5}2}=\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}

Multiply numerator and denominator by the denominator's conjugate:

\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}\cdot\dfrac{15\mp5\sqrt5}{15\mp5\sqrt5}=\dfrac{45\pm15\sqrt5\mp15\sqrt5-25}{15^2-(5\sqrt5)^2}=\dfrac{20}{100}=\dfrac15

3 0
3 years ago
Find the value of the variable(s). If your answer is not an integer, leave it in simplest radical form.
algol13
Answers:
x = 24
y = 8√3
Explanation:

1) Since, the given triangle is a right triangle, and you have both an angle and the hypotenuse length, you can use some trigonometric ratios to find the variables.

2) The variables given represent:

x: adjacent-leg to angle 30°
y: opposite length to angle 30°

3) sine ratio:

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⇒ y = 16√3 sin 30° = 16√3 × (1/2) = 8√3

4) cosine ratio

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⇒ x = 16√3 cos 30° = 16√3 (√3 / 2) = 16 × 3 / 2 = 24

4 0
2 years ago
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