4 years ago

What is the 10th term in the geometric sequence? (2187, 729, 243, 81, 27)

Mathematics

1 answer:

tamaranim1 [39]4 years ago

8 0

Answer:

daisy measured the heights of 20 plants.

The table give some information avout the heights (h in cm) of the plants

Step-by-step explanation:

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Which is the equation of a line with the slope of -2 that passes through the point (-2,0)

pickupchik [31]

Y = -2x - 4

-2x is the slope and -4 is the y intercept.

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3 years ago

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A group of students at a school takes a history test. The distribution is normal with a mean of 25, and a standard deviation of

Anna [14]

Answer:

27.1

Step-by-step explanation:

Given:

mean=25

standard deviation=4

z0.70=0.525

$z=\frac{x-mean}{standard deviation}$

z*sd = x-mean= 2.1

the lowest score for the top 30%: x=27.1

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3 years ago

Engineering The equation for the cross section of a spotlight is y+5= 1/2x^2.

Marysya12 [62]

Answer:

$p=1/2\ or\ 0.5\ inches$

Step-by-step explanation:

From the question we are told that

Equation of cross section is $y+5= \frac{1}{2x^2}$

Generally the equation can be rewritten mathematically as

$y+5= \frac{1}{2}x^2$

$x^2=(y+5)2$

$(x-0)^2=(y-(-5))2$

Generally the equation of a parabola with vertical axis is mathematically given by

$(x - h)2 = 4p(y - k)$

Therefore comparing equations

$(x-0)^2=(y-(-5))2$

$4p=2$

$p=2/4$

The distance from the bulb to the vertex of the cross section is given by

$p=1/2\ or\ 0.5\ inches$

4 0

3 years ago

A rectangular prism has a length of 2 cm, a width of 4 cm, and a volume of 64 cubic cm. Find the height:

Dima020 [189]

Answer:

The height of the prism is 8 cm.

Step-by-step explanation:

2*X*4=64

8X=64

X=8

6 0

4 years ago

40 points! I just need this one, please help

vesna_86 [32]

Answer:

C. 3,75 cm

Step-by-step explanation:

<u>Ratio of corresponding sides:</u>

CD/BC = BC/AB
CD/6 = 6/9.6
CD = 6*6/9.6
CD = 3.75 cm

Correct choice is C

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3 years ago