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3 years ago

WILL GIVE BRIANLIEST(07.03)

Mathematics

1 answer:

Rzqust [24]3 years ago

3 0

The answer is -3. it is the only way to make the 6 negative

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To create a mathematical model of several data points, you identify the R2 values of different regression types. You find a line

ehidna [41]

Answer:

a. a power model hope this helps

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3 years ago

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Dr. Steve is working with a new radioactive substance in his lab. He currently has 64 grams of the substance and knows that it d

4vir4ik [10]

Remember that the general decay equation is:
$y=A(1-r)^{x}$
where
$y$ is the amount after a time $x$
$A$ is the initial amount
$r$ is the the decay percent in decimal form

The first ting we are going to do is find $r$ by dividing our <span>decay rate of 25% by 100%: </span> $r= \frac{25}{100} =0.25$ .
We also know from our problem that $y=64$ . Lets replace $y$ and $r$ in our formula:
$64=A(1-0.25)^{x}$
$64=A(0.75)^{x}$
We know now that our decay rate is 0.75, and since 0.75<1, we can conclude that this situation represents exponential decay.

Now, to find the initial amount, we are going to solve our equation for $A$ :
$64=A(0.75)^{x}$
$A= \frac{64}{0.75 ^{x} }$
Notice that $A$ will depend on the number of ours $x$ . <span />

4 0

3 years ago

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Rosa recorded the height (in centimeters) of a pea plant over a 10-day period for a science experiment. Please help me with this

katrin [286]

Answer:

option a)

y = m(0.5) + 1.8

Step-by-step explanation:

Equation

represent the equation of straight line

here m = gradient of straight line

c = y-intercept

First find the gradient of the graph

= 4 - 3 / 4 - 2

= 1 / 2

Put the values in the equation of straight line

y =mx + c

4 = 1/2(4) + c

c = 2

y = 1/2x + 2

which is approximately equal to y = 0.5x + 1.8

7 0

3 years ago

A 120 lb. person would weigh about 20 lb. on the earth's moon. A 150 lb. person would weigh 28 lb. on Io, a moon of Jupiter. Whi

____ [38]

Answer:

Step-by-step explanation:

Earth's moon makes a person weigh about 1/6 of their Earth weight. Io makes a person weigh more than that, because 1/6 of 150 pounds is 25 pounds.

5 0

3 years ago

A rectangle is inside a circle with a 5 cm radius.

MrRa [10]

Answer: 30.5 cm²

To get the the area of the rectangle all we have to do is:

Rectangle Area = 6 × 8 = 48 cm²

Same thing to the circle, multiply the radius and pi:

Circle Area = 3.14 x 5² = 78.5 cm²

We have to subtract the two areas to find the shaded area.

78.5 - 48 = 30.5 cm²

I hope this helps!

3 0

3 years ago

*WILL GIVE BRIANLIEST*(07.03)

WILL GIVE BRIANLIEST(07.03)