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zysi [14]
3 years ago
12

Which of the following are geometric sequences? Check all that apply. A. 10, 5, 2.5, 1.25, 0.625, 0.3125 B. 5, 10, 20, 40, 80, 1

60 C. 3, 6, 9, 12 ,15, 18 D. 1, 3, 9, 27, 81
Mathematics
2 answers:
GaryK [48]3 years ago
8 0
<span>Which of the following are geometric sequences? Check all that apply.
A. 10, 5, 2.5, 1.25, 0.625, 0.3125
B. 5, 10, 20, 40, 80, 160
C. 3, 6, 9, 12 ,15, 18
D. 1, 3, 9, 27, 81</span>
Vitek1552 [10]3 years ago
5 0

Answer:

A & D correct for apex precal sem 1

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What is the value of the rational expression x^2-2x-3/4x^2-12 when x = 3?
kotykmax [81]

Answer:

b

Step-by-step explanation:

Given

\frac{x^2-2x-3}{4x^2-12}

Substitute x = 3 into the expression

= \frac{3^2-2(3)-3}{4(3)^2-12}

= \frac{9-6-3}{36-12}

= \frac{0}{24} = 0 → b

6 0
3 years ago
Consider the quadratic equation x3 = 48-5. How many solutions does the equation have?
Arturiano [62]

Answer:

 you would  have 84-.10 I think

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
If x3= 27 and y3 =125, what is the value of y-x
Leno4ka [110]

Answer:

32 2/3

(32.6 repeating)

Step-by-step explanation:

29/3 is 9 (just make it not 3 Xs,) so x=9

125/3 is 41 2/3 so y= 41 2/3

41 2/3 - 9 = 32 2/3

5 0
3 years ago
Read 2 more answers
I need help on questions 9, 10, and 11 please!
bulgar [2K]
In general, to find the surface area of a prism (a shape with 2 bases) is 
Area of Base*2 + Lateral Area (Lateral area = Perimeter of bases * height)

#9 Area of base= 2×1÷2=1 *2=2
Lateral area= 2+1+2.2=5.2 5.2*3=15.6
Answer=17.6
#10 Area of Base= 120*2=240
Lateral Area=500
Answer=740
#11
Area of base=8*2=16
Lateral Area= 41.4
Answer=57.4

8 0
4 years ago
Find the equation of a line that has a slope of 2 and passes through the point.<br> point (-7, 5)
sashaice [31]

Answer:

\large\boxed{y-5=2(x+7)\leftarrow\text{point-slope form}}\\\boxed{y=2x+19\leftarrow\text{slope-intercept form}}

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

m - slope

(x₁, y₁) - point

We have the slope m = 2 and the point (-7, 5) → x₁ = -7, y₁ = 5.

Substitute:

y-5=2(x-(-7))\\\\y-5=2(x+7)

Convert to the slope-intercept form (y = mx + b):

y-5=2(x+7)           <em>use distributive property</em>

y-5=2x+14            <em>add 5 to both sides</em>

y=2x+19

7 0
3 years ago
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