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3 years ago

Please help this is my 3rd time asking :(

Mathematics

1 answer:

Vesna [10]3 years ago

3 0

Answer:

D. the lines never intersect

Step-by-step explanation:

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Valentina purchased 200 beads foe 48 dollars to make necklaces. If she needs to buy 25 more beads how much will she pay if she i

Allushta [10]

$\bf \begin{array}{ccll}
beads&\$\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
200&48\\
25&x
\end{array}\implies \cfrac{200}{25}=\cfrac{48}{x}\implies x=\cfrac{25\cdot 48}{200}$

4 0

3 years ago

Find the area of the shape below. All measurements are in miles.

IrinaK [193]

731.04!! You multiply all together!! Mark me brainliest ?

6 0

2 years ago

A population has the following characteristics. (a) A total of 75% of the population survives the first year. Of that 75%, 25% s

Artemon [7]

Answer:

$= \left[\begin{array}{ccc}1344\\84\\28\end{array}\right] \left \begin{array}{ccc}{0 \ \leq age \leq 1 }\\{ 1 \ \leq age \leq 2 }\\{2 \ \leq age \leq 3}\end{array}\right$

i.e after the first year ;

there 1344 members in the first age class

84 members for the second age class; and

28 members for the third age class

Step-by-step explanation:

We can deduce that the age distribution vector x represents the number of population members for each age class; Given that in each class of age there are 112 members present.

The current age distribution vector is as follows:

$x = \left[\begin{array}{ccc}1&1&2\\1&1&2\\1&1&2\end{array}\right] \left[\begin{array}{ccc}{0 \ \leq age \leq 1 }\\{ 0 \ \leq age \leq 2 }\\{0 \ \leq age \leq 3}\end{array}\right]$

Also , the age transition matrix is as follows:

$L = \left[\begin{array}{ccc}3&6&3\\0.75&0&0 \\0&0.25&0\end{array}\right]$

After 1 year ; the age distribution vector will be :

$x_2 =Lx_1 = \left[\begin{array}{ccc}3&6&3\\0.75&0&0 \\0&0.25&0\end{array}\right] \left[\begin{array}{ccc}1&1&2\\1&1&2\\1&1&2\end{array}\right]$

$= \left[\begin{array}{ccc}1344\\84\\28\end{array}\right] \left \begin{array}{ccc}{0 \ \leq age \leq 1 }\\{ 1 \ \leq age \leq 2 }\\{2 \ \leq age \leq 3}\end{array}\right$

6 0

3 years ago

A rectangle measures 14cm by seven cm what is its area

Nezavi [6.7K]

98 Cm should be the answer

6 0

2 years ago

Can somoene help me with this question please

Alex

Answer:

About 260 seconds

Step-by-step explanation:

Tha rate is:

A: 8L/1.66666m

b: 10L/1m (converted to litres)

Divide 2400 by those rates above which:

2400 / (8/1.66666) = 500

2400 / (10/1) = 240

500 - 240 = 260

7 0

2 years ago

Please help this is my 3rd time asking :(​

Please help this is my 3rd time asking :(