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dimulka [17.4K]

2 years ago

10

1. There are 420 students at Virginia Middle School. The ratio of girls to boys is 4 to 3. Exactly how many more girls are there

than boys at Virginia Middle School?

1 answer:

Assoli18 [71]2 years ago

6 0

The answer would be 60

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Diana looks up at an angle of 57 and sees a hot air balloon 150 meters away. To the nearest meter, what is the value of x,

LekaFEV [45]

Answer:

230.98 meters

Step-by-step explanation:

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3 years ago

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A specific factor having a range of possible values is a __________.

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The difference between two trinomials is 5x2 + 11x − 16. If one of the trinomials is 3x2 − 2x + 7, then which expression could b

vredina [299]

Answer:

$2x^2+13x-23$

Step-by-step explanation:

The first trinomial is

$3x^2-2x+7$

Let the other trinomial be P.

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We make P the subject to obtain,

$P=5x^2-3x^2+11x+2x-16-7$

We simplify to obtain,

$P=2x^2+13x-23$

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3 years ago

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Domain of (x-5)(x+5)

soldier1979 [14.2K]

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4 0

2 years ago

HH represents the height of the tree (in centimeters), t tt years since Renata moved in. H = 210 + 33 t H=210+33tH, equals, 210,

Jet001 [13]

Answer:

Therefore the rate of growth of the tree is 33 cm/ yr.

Step-by-step explanation:

Given that,

The height of the tree is

H= 210 +33t

Here H represent the height of tree in cm and t is time in year.

The rate of growth is the first order derivative of the H with respect to time.

i.e The rate of growth $=\frac{dH}{dt}$

∴H= 210 +33t

Differentiating with respect to t

$\frac{dH}{dt} =0 +33$

$\Rightarrow \frac{dH}{dt}=33$

Therefore the rate of growth of the tree is 33 cm/ yr.

7 0

3 years ago