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3 years ago

This H.W I dont get it plz help.

Mathematics

1 answer:

steposvetlana [31]3 years ago

4 0

I think it’s D I’m not sure

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Tiana helped make signs for the school marching band’s fundraiser. Each side of the square sign she made was 60 3/4 centimeters.

Minchanka [31]

Answer:

243

Step-by-step explanation:

60 3/4 × 4 (sides)

60×4 = 240

3/4×4 = 12/4 = 3

240+3 = 243

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3 years ago

If line d intersects plane F, then how many points on line d also lie on plane F?

Rudiy27

Answer:

the answer is one 1111111111111111111111111111111111111

Step-by-step explanation:

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3 years ago

At the beginning of an environmental study, a forest covered an area of 1500 km2 . Since then, this area has decreased by 9.8% e

fredd [130]

Answer:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

Step-by-step explanation:

In this problem, the initial area of the forest at time t = 0 is

$A_0 = 1500 km^2$

After every year, the area of the forest decreases by 9.8%: this means that the area of the forest every year is (100%-9.8%=90.2%) of the area of the previous year.

So for instance, after 1 year, the area is

$A_1 = A_0 \cdot \frac{90.2}{100}=0.902 A_0$

After 2 years,

$A_2=0.902 A_1 = 0.902(0.902A_0)=(0.902)^2 A_0$

And so on. So, after t years, the area of the forest will be

$A(t)=(0.902)^t A_0$

And by substituting the value of A0, we can find an explicit expression:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

8 0

3 years ago

Can someone show me how to solve this

NISA [10]

Answer:

f(1)=13

f(-9)=88

f(0)=0

f(-15)=20

The above mentioned are false statements

Step-by-step explanation:

f(1)=13 : false because "13" is out of range -40≤f(x)≤-10

f(-9)=88 : false because "88" is out of range -40≤f(x)≤-10

f(0)=0 : false because "0" is out of range -40≤f(x)≤-10

f(-15)=-20 : false because "-15" is out of domain -10≤x≤20

7 0

3 years ago

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Alan is arranging 3 different stuffed toys in a row on a shelf. Create a sample space for the arrangement of a teddy bear (T), a

elena55 [62]

Answer:

teddy bear (Tb)

kitten (kit)

elephant (big ears)

5 0

3 years ago

Read 2 more answers