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3 years ago

A weed called the boomstar vine is known for growing at a very fast rate. It can grow up to 0.5 feet per day.

Mathematics

2 answers:

Naily [24]3 years ago

8 0

The booster vine can grow 6 inches in a day. It would be able to grow 1/4 inch an hour.

grigory [225]3 years ago

7 0

1 foot = 12 inches so 0.5 foot = 12*0.5 = 6 inches

A) it can grow 6 inches per day

B) 1 day = 24 hours

6 inches / 24 hours = 0.25 inches per hour

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How many solutions are there for the system x^2+4y^2=100 and 4y-x^2=-20

never [62]

There are 5 solutions for this system.

x^2 + 4y^2 = 100 ____1
4y - x^2 = -20 ____2
Add both 1 & 2 together. x^2 gets cancelled
4y^2 + 4y = 80 (send 80 to the other side and divide by 4)
Then equation the becomes : y^2 + y -20 =0
Now factorise the equation: (y+5) (y-4) = 0
Solve for y : y = -5 and y = 4
Using the values of y to find the values of x. From equation 1:
x^2 = 100 - 4y^2 x = /100 - 4y^2 (/ means square root) Replace values of y
y = -5, x = /100 - 4(-5)^2 = /100 - 100 = 0
y = 4, x = /100 - 4(4)^2 = / 100 - 64 = /36 = -6 or 6
Thus we have 6 solutions y = -5, 4 and x = -6, 0, 6

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3 years ago

Capturing nature’s emotion and energy, as seen in this painting by Monet and heard in Debussy’s “The Snow Is Dancing,” is a typi

Colt1911 [192]

A : Renaissance is correct

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2 years ago

Read 2 more answers

Nour drove from the Dead Sea up to Amman, and her altitude increased at a constant rate. When she began driving, her altitude wa

labwork [276]

Answer:

y = - 400 + 700x

Step-by-step explanation:

Nour's altitude increased at a constant rate from the Dead Sea up to Amman.

Initially, her altitude was 400 meters below from the sea level and then she arrived at an altitude was 1000 meters above sea level arrived to Amman, 2 hours later.

So, she moves (400 + 1000) = 1400 meters in 2 hours.

Therefore, her rate of change of altitude is $\frac{1400}{2} = 700$ meters per hour.

Therefore, if y represents Nour's altitude in meters relative to the sea level after x hours then the relationship between the altitude and number of hours is given by

y = - 400 + 700x (Answer)

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3 years ago

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Please help.

Mashcka [7]

V=(1/3)(area of the base)(<span>altitude)

V=</span><span>(1/3)(</span>6²)(6)= 72 m³

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3 years ago

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The average mass of an ant is approximately 3 × 10 − 3 grams. The average mass of a giraffe is approximately 2 × 10 3 kilograms.

Vika [28.1K]

Given that average mass of an ant $= 3 \times 10^{-3}$ grams.

Given that average mass of a giraffe $= 2 \times 10^{3}$ Kilograms.

Now we have to find about how many times more mass does a giraffe have than an ant. Before carring out any comparision, we must make both units equal.

Like convert kilogram into gram or gram into kilogram.

I'm going to convert kilogram into gram using formula

1 Kg = 1000 g

So the average mass of a giraffe $= 2 \times 10^{3} *10^3$ grams.