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4 years ago

Question 1

Mathematics

2 answers:

timofeeve [1]4 years ago

8 0

A hypothesis. A hypothesis is an educated guess, and the person is assuming that it rained.

cluponka [151]4 years ago

3 0

Answer:

a prediction

Step-by-step explanation:

because they don't KNOW it rained they are just assuming

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If Jenna can walk 6mi in 2h, how many miles could she walk in 2.5h, assuming she keeps the same pace?

laiz [17]

Answer:

7.5mi

Step-by-step explanation:

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3 years ago

Convert each measurement <br> 18 meters = ??? centimeters

leonid [27]

Answer:

18 meters = 1800 milimeters

Step-by-step explanation:

Hope this helps! :3

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6 0

4 years ago

Read 2 more answers

-5(3m+6)= -3(4m - 2)

algol13

-15m -30 = -12m +6
3m = 36
m= 36/3 =12

4 0

3 years ago

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Let f(x) = 2x2 + x − 3 and g(x) = x + 2.<br><br> Find (f • g)(x)

katen-ka-za [31]

Answer:

$(f\cdot g)(x) = 2x^3 + 5x^2-x-6$

Step-by-step explanation:

We are given the two functions:

$f(x)=2x^2+x-3\text{ and } g(x)=x+2$

And we want to find:

$(f \cdot g)(x)$

Recall that this is equivalent to:

$=f(x)\cdot g(x)$

Substitute. Hence:

$(f\cdot g)(x)= (2x^2+x-3)(x+2)$

Expand if desired:

$\displaystyle = x(2x^2+x-3)+2(2x^2+x-3) \\ \\ = (2x^3+x^2-3x)+(4x^2+2x-6) \\ \\\ = 2x^3 + 5x^2-x-6$

3 0

3 years ago

Read 2 more answers

Point A is located at (4, 7). It will be translated 5 units right and 3 units down. Write the rule and give the location of poin

Anarel [89]

Answer:

The rule of translation is $A(x',y') = A(x,y) + (5,-3)$ .

The translated vector is $A(x',y') = (9, 4)$ .

Step-by-step explanation:

Let supposed that translation to the right is in the +x direction and translation downwards in the -y direction.

We procced to translate the operation into mathematic terms. A translation consists in a vectorial sum on a given vector. That is:

$A(x',y') = A(x,y) + U(x,y)$ (Eq. 1)

Where:

$A(x,y)$ - Original vector, dimensionless.

$U(x,y)$ - Translation vector, dimensionless.

$A(x',y')$ - Translated vector, dimensionless.

If we know that $U(x, y) = (5, -3)$ , then the rule of translation is described by:

$A(x',y') = A(x,y) + (5,-3)$ (Eq. 2)

If $A(x, y) = (4,7)$ , then the new location of A is:

$A(x',y') = (4,7)+(5,-3)$

$A(x',y') = (9, 4)$

The translated vector is $A(x',y') = (9, 4)$ .

4 0

4 years ago