2 years ago

Which expression can be used to find 7

Mathematics

1 answer:

mariarad [96]2 years ago

5 0

Answer:

7(-6) +7

Step-by-step explanation:

hope it helps

have a good day

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Scientists found that a certain particle of dust doubles every 30 minutes. If the scientists tests this out with 21 grams of the

monitta

Answer: $1.663\times 10^{30}\ gm$

Step-by-step explanation:

Given

Population of dust particle doubles every 30 minutes

If the initial sample is 21 grams

The model to predict the population will be

$\Rightarrow P=21\cdot 2^{2t}$

Where t=time in hours

A day has 24 hours . So, for 2 days time is 48 hours

Population is given by

$\Rightarrow P=21\cdot 2^{2\times 48}\\\\\Rightarrow P=21\times 2^{96}\\\\\Rightarrow P=1.663\times 10^{30}\ gm$

7 0

2 years ago

Pls help I don't understand this

Rudiy27

<h3>Answer:</h3>

By angle bisector property,

11x + 23 = 8x + 35
11x - 8x = 35 - 23
3x = 12
x = 4°

So, m∠ABD = 8x + 35

8 × 4 + 35
32 + 35 = 67°

m∠CBD = 11x + 23

11 × 4 + 23
44 + 23 = 67°

m∠ABC = 67° + 67° = 134°

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2 years ago

Dimension of triangle A are three times the dimensions of triangle

nikitadnepr [17]

a I took the test on ingenuity

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2 years ago

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LeShana loaned Deena $480. Deena paid the money back with simple interest of 5% at the end of 2 years. How much money did Deena

Amanda [17]

480$ --100%
x$ -------5%
x=480*5/100=24$

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2 years ago

Which of the binomials below is a factor of this trinomial?

Leokris [45]

Answer:

x+5 is the factor..

Step-by-step explanation:

xsquare + (8+5)x + 40

or, xsquare +8x+5x+40

or, x(x+8)+5(x+8)

(x+5)(x+8)

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3 years ago