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2 years ago

11

The Jones family is driving from San Antonio, Texas, to Anchorage, Alaska, which is a distance of 4304 miles. They have already

driven 1639.2 miles.
How much farther does the family need to drive to reach Anchorage?

2554.36

5943.2

912.6

2664.8

2 answers:

LekaFEV [45]2 years ago

8 0

912.6 hope its right i tried

DanielleElmas [232]2 years ago

4 0

Answer: 2664.8

Step-by-step explanation:

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A triangular pyramid with a height of 9 inches has a volume of 63 cubic inches. If the height of the triangular base is 6 inches

Bond [772]

Option D: 21 in is the base length of the triangular base.

Explanation:

Given that a triangular pyramid with a height of 9 inches has a volume of 63 cubic inches.

The height of the triangular base is 6 inches.

We need to determine the base length of the triangular pyramid.

The base length of the triangular pyramid can be determined using the formula,

$Volume =\frac{1}{3} \times Bh$

Substituting $Volume=63$ and $Height=9$ in the above formula, we get,

$63 =\frac{1}{3} \times B(9)$

Simplifying the terms, we get,

$63 =3B$

Dividing both sides by 3, we have,

$21=B$

Thus, the base length of the triangular pyramid is 21 in

Hence, Option D is the correct answer.

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3 years ago

The decimal 0.3 represents 1/3. What type of number best describes 0.9, which is 3 times 0.3? Explain.

myrzilka [38]

It can be described as 9/10

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2 years ago

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How do i solve this absolute value equation |3x-2|+4=7?

Diano4ka-milaya [45]

Answer:

{3x-2}+4=10

Step-by-step explanation:

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3 years ago

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Evaluate the function f(x)=x^2+2x+3 at the given values of the independent variable and simplivy

tatyana61 [14]

Answer: i) f(-9)= 66

ii) $f(x+1)=x^2+4x+6$ .

iii) $f(-x)=x^2-2x+3$

Step-by-step explanation:

The given function : $f(x)=x^2+2x+3$ .

i) For f(-9) , the independent variable is x= -9.

Put x= -9 in given function , we get

$f(-9)=(-9)^2+2(-9)+3$

$=81-18+3=66$

Thus , f(-9)= 66

ii) For f(x+1) , the independent variable is x= x+1.

Replace x by x+1 in given function , we get

$f(x+1)=(x+1)^2+2(x+1)+3$ .

$=(x^2+1+2x)+2x+2+3$ $[\because\ (a+b)^2=(a^2+b^2+2ab)]$

$=x^2+1+2x+2x+5$

$=x^2+4x+6$

Thus , $f(x+1)=x^2+4x+6$ .

iii)For f(-x) , the independent variable is x=-x.

Replace x by -x in given function , we get

$f(-x)=(-x)^2+2(-x)+3$ .

$=x^2-2x+3$ [∵ (+)(-)=(-)]

Thus , $f(-x)=x^2-2x+3$

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3 years ago

Factor the polynomial, given that x=-3 is a zero

GREYUIT [131]

if x-2 is a factor of polynomial, f (×) ,then it means we can find the zeros or the solutions of the polynomial by putting for (×-2)=0 . Because the zeros or roots of a polynomial is found by putting f (×)=0 , where x is a factor of the polynomial

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2 years ago