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4 years ago

Describe how to round 3.987 to the nearest tenth

Mathematics

2 answers:

Virty [35]4 years ago

8 0

So u basically round 8 which is 10 and then add the 1 from 10 to 9 which is 10 and add the 1 to 3 which is 4

Romashka-Z-Leto [24]4 years ago

3 0

The tenth digit is the second to the right, after the decimal, so 8. If you look at the hundredths digit, you see it is a 7. Is 7 closer to 1 or 10? 10, so you would round the 8 up to 9, instead of leave it at 8. If the hundredths digit was closer to 1, you would leave it as a 8. Hope this helped! (:

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Divide p(x) = (x^4 – 5x + 6) by g(x) = (2 – x^2)

sesenic [268]

Answer:

The answer is shown in the picture.

Step-by-step explanation:

When the power in the numerator is greater than the power in the dernominator, you have to use Long Division. In this question, the power in numerator is x⁴ and the power in dernominator is x².

5 0

3 years ago

Rectangle ABCDABCDA, B, C, D is graphed in the coordinate plane. The following are the vertices of the rectangle: A(-7, -5), B(-

sergey [27]

The length of side CD is equal to 11 units.

Given coordinates of rectangle are A(-7,-5), B(-7,6),C(-4,6) ,D(-4,-5)

We are require to find the length of side CD.

Rectangle is a two dimensional figure whose two opposite sides are equal to each other. Distance between two coordinates is the equal to length of a side.

We know that the distance means how far two points are located.

Coordinates of A(-7,-5), B(-7,6),C(-4,6) ,D(-4,-5).

Distance= $\sqrt{(x_{2} -x_{1} )^{2} +(y_{2} -y_{1} )^{2} }$ where ( $x_{1} ,y_{2} )(x_{2} ,y_{2} )$ are the coordinates of two ends of a line.

CD= $\sqrt{(-5-6)^{2} +(-4+4)^{2} }$

= $\sqrt{11^{2}+0^{2} }$

= $\sqrt{121}$

=11 units.

Hence the length of side CD is 11 units.

Learn more about distance at brainly.com/question/17273444

#SPJ4

Question is wrong as it should be :

Coordinates of rectangle A(-7,-5), B(-7,6),C(-4,6) ,D(-4,-5) and find the length of CD.

8 0

3 years ago

If (n+1)!=90×(n-1)!,find n.

Helen [10]

$\displaystyle\bf\\(n+1)!=90\times (n-1)!\\\\(n-1)!\times n\times(n+1)=90\times (n-1)!~~~\Big|~:(n-1)!\\\\n(n+1)=90\\\\n(n+1)=9\times10\\\\n(n+1)=9(9+1)\\\\\implies~~\boxed{\bf n=9}$

4 0

3 years ago

Which is the polynomial function of lowest degree

Tems11 [23]

Option D:

f(x) = x(x + 2)(x + 5)

Solution:

Given root of the polynomial functions are:

–5, –2 and 0.

If a is the root of the polynomial then the factor is (x –a).

So that, the factors of the given roots are:

(x –(–5)) = x + 5

(x –(–2)) = x + 2

(x – 0) = x

Polynomial = Product of the factors

f(x) = (x + 5)(x + 2)x

Switch the order of the factors.

f(x) = x(x + 2)(x + 5)

Option D is the correct answer.

The polynomial function of lowest degree is f(x) = x(x + 2)(x + 5).

3 0

3 years ago

...........................

Arisa [49]

Answer:

B) b√a

Step-by-step explanation:

b√a

8 0

3 years ago