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3 years ago

miss townsend needs 5 1/2 yards of fabric to make 2 indentical dresses how much fabric is needed to make each dress?

Mathematics

1 answer:

AlekseyPX3 years ago

7 0

Answer:

2 3/4

Step-by-step explanation:

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The number of a particular fish in thousands x years after 1972 can be modeled by f(x)=230(0.886)x. Estimate the year when the n

sashaice [31]

Answer:

The year is 1979.

Step-by-step explanation:

Given:

The function relating fish population and number of years since 1972 is:

$f(x)=230(0.886)^x\\Where,\ f(x)\rightarrow \textrm{fish population}\\x\rightarrow \textrm{number of years passed after 1972}$

Now, when the fish population reaches 99 thousand, it means that $f(x)=99$ . Now, plugging in $f(x)=99$ in the above equation and solving for $x$ . This gives,

$99=230(0.886)^x\\\frac{99}{230}=0.886^x\\\\\textrm{Taking natural log on both sides}\\\ln(0.886)^x=\ln(\frac{99}{230})\\\\\textrm{Using log property: }\log a^b=b\log a\\x\ln (0.886)=\ln(0.43)\\x\times (-0.12)=-0.84\\x=\frac{-0.84}{-0.12}=7\ years$

Therefore, the year after 7 years passed since 1972 is given as:

1972 + 7 = 1979.

So, the year when the number of fish reaches 99 thousand is 1979.

8 0

3 years ago

A charity organization is holding a food drive with a goal to collect at least 1,000 cans of

Bess [88]

Answer:

Each guest must bring 5 cans.

Step-by-step explanation:

1000-565=435

435/87=5

5 0

3 years ago

Select the correct product.

AURORKA [14]

Answer:

Option A. $2x^{3}+7x^{2}+12x-8$

Step-by-step explanation:

we have

$(x^{2}+4x+8)(2x-1)$

Applying the distributive property

$(x^{2}+4x+8)(2x-1) =x^{2}(2x)-x^{2} +4x(2x)-4x+8(2x)-8\\ \\=2x^{3}-x^{2} +8x^{2}-4x+16x-8\\ \\= 2x^{3}+7x^{2}+12x-8$

7 0

3 years ago

Need help this is my niece work

Murrr4er [49]

It is C 100 then B 100

3 0

2 years ago

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A microscope shows you an image of an object that is 20 times the objects actual size. Therefore, the scale factor of the enlarg

madam [21]

We just have to multiply 20 by 10mm, which is 200mm. 100mm is equal to one centimeter, so the body length of the insect under the microscope is two centimeters.

4 0

3 years ago

Read 2 more answers