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3 years ago

15

Pleas help. Just label you answer with them numbers and give me the letter answer.

1 answer:

goldenfox [79]3 years ago

8 0

25) B
26) B
27) A
28) D

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What type of numbers has exactly two factors?

nlexa [21]

Rime: A number with exactly two factors; one and itself. What does this mean? This means that for us to call a number prime, only two whole numbers can divide into it without a remainder. Here are a few examples: 2, 3, 5, 7, 11<span>, </span>13<span>, </span>17<span>, </span>19<span>, </span>23<span>, and so on.</span>

7 0

3 years ago

On the scale drawing of Cold Lake Camp, the mess hall is 5 cm from the lodge. The scale for the map is 2 cm = 100 m.

romanna [79]

Answer:

The answer is 250 meters from the lodge

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3 years ago

The blueprint for the Daly Daly's living room has a scale of 2 inches=3 feet. The family wants to use a scale of 1 inch equals

denpristay [2]

Answer:

5X ft

Step-by-step explanation:

Given the new scale of 1 inch equals = 5 feet

let $X$ denote the width of the living room on the blueprint.

To find the width of the living room:

$Width=Blueprint \ Dimensions \times scale\\\\=X times 5ft\\\\=5X \ ft$

Hence the living room has a width of 5X ft

7 0

3 years ago

Suppose r⃗ (t)=cos(πt)i+sin(πt)j+5tkr→(t)=cos(πt)i+sin(πt)j+5tk represents the position of a particle on a helix, where zz is th

gtnhenbr [62]

Answer:

a) t = 4

b) v = pi j + 5 k

c) rt = 1i + (pi t) j + (20 +5t )k

Step-by-step explanation:

You have the following vector equation for the position of a particle:

$r(t)=cos(\pi t)\hat{i}+sin(\pi t)\hat{j}+5t\hat{k}$ (1)

(a) The height of the helix is given by the value of the third component of the position vector r, that is, the z-component.

For a height of 20 you have:

$5t=20\\\\t=\frac{20}{5}=4$

(b) The velocity of the particle is the derivative, in time, of the vector position:

$v(t)=\frac{dr(t)}{dt}=-\pi sin(\pi t)\hat{i}+\pi cos(\pi t)\hat{j}+5\hat{k}$ (2)

and for t=4 (height = 20):

$v(t=4)=-\pi sin(\pi (4))\hat{i}+\pi cos(\pi (4))\hat{j}+5\hat{k}\\\\v(t=4)=-0\hat{i}+\pi\hat{j}+5\hat{k}$

(c) The vector parametric equation of the tangent line is given by:

$r_t(t)=r_o+vt$ (3)

ro: position of the particle for t=4

$r_o=cos(\pi (4))\hat{i}+sin(\pi (4))\hat{j}+20\hat{k}\\\\r_o=\hat{i}+0\hat{j}+20\hat{k}$

Then you replace ro and v in the equation (3):

$r_t=(1\hat{i}+20\hat{k})+(\pi \hat{j}+5\hat{k})t\\\\r_t=1\hat{i}+\pi t \hat{j}+(20+5t)\hat{k}$

3 0

3 years ago

Kittens weigh about 100 grams when born and gain 7 to 15 grams per day.If a kitten weighted 100 grams at birth and gained 8 gram

labwork [276]

The answer would be 25 days :)

6 0

3 years ago