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DanielleElmas [232]

2 years ago

6

The edge of a cube is 4 inches. The area of a cross section perpendicular to one face is ___square inches, and its perimeter is_

__ inches

2 answers:

9966 [12]2 years ago

8 0

4x4 = 16

Answer= 16

Answer=16

BOTH OF THEM 16

diamong [38]2 years ago

3 0

Try 8 and 12.......................................

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Based on the given information, which conjecture is invalid?

KIM [24]

The answer is C.
C is the only answer that doesn’t name an animal that has 4 legs.

5 0

2 years ago

For the given decimal −0.009, find the two integers closest to it.

asambeis [7]

Answer:

The two integers closest to -0.009 are -1 and 0

Step-by-step explanation:

we have the number

$-0.009$

Convert to fraction number

$-0.009=-\frac{9}{1,000}$

In a number line

$-\frac{1,000}{1,000} < -\frac{9}{1,000}$

Remember that

$-\frac{1,000}{1,000}=-1\\\frac{0}{1,000}=0$

so

$-1 < -\frac{9}{1,000}$

therefore

The two integers closest to -0.009 are -1 and 0

7 0

3 years ago

The population of the world was 7.1 billion in 2013, and the observed relative growth rate was 1.1% per year. A) Estimate how lo

VLD [36.1K]

Answer:

A) 63.36 years.

B) 100.42 years.

Step-by-step explanation:

We have been given that the population of the world was 7.1 billion in 2013, and the observed relative growth rate was 1.1% per year.

A) Since we know that population increases exponentially, therefore we will use our given information to form an exponential model for population increase and then we will solve for the time by which our population will be double.

$P(t)=7.1(1.011)^{t}$

$7.1 \times 2=7.1(1.011)^{t}$

$\frac{7.1 \times 2}{7.1} =(1.011)^{t}$

$2 =(1.011)^{t}$

Now let us solve for t using logarithm.

$ln(2) =ln (1.011)^{t}$

$ln(2) =t \cdot ln(1.011)$

$0.6931471805599453 =t \cdot 0.0109399400383344$

$t=\frac{0.6931471805599453}{0.0109399400383344}$

$t=63.3593217267282743049\approx 63.36$

Therefore, it will take 63.36 years the population to be double.

B) Now we will find the number of years it will take the population to be triple of its size.

$7.1 \times 3=7.1(1.011)^{t}$

$\frac{7.1 \times 3}{7.1} =(1.011)^{t}$

$3 =(1.011)^{t}$

Now let us solve for t using logarithm.

$ln(3) =ln (1.011)^{t}$

$ln(3) =t \cdot ln(1.011)$

$1.0986122886681097 =t \cdot 0.0109399400383344$

$t=\frac{1.0986122886681097}{0.0109399400383344}$

$t=100.4221490079915311298\approx 100.42$

Therefore, it will take 100.42 years the population to triple of its size.

6 0

2 years ago

Use the distributive property to solve the equation 28 - (3x + 4) = 2(x + 6) + 5

Shalnov [3]

1.) 28-3x-4= 2x+12+x
2.) 24-3x= 3x+12
3.)24-6x=12
4.)-6x=-12
5.)x=2

7 0

2 years ago

Val tossed a coin 20 times. The results were 8 heads and 12 tails. What is the experimental probability of tossing heads?

Andrew [12]

Answer:

2/5 or 0.40

Step-by-step explanation:

Val's result for heads is ...

8/20 = 2/5 = 0.40

4 0

2 years ago