All categories

4 years ago

Find each product.

Mathematics

1 answer:

dsp734 years ago

5 0

Answer:

B) 7v^3-15v^2-17v-3

Step-by-step explanation:

(v-3)(7v^2+6v+1)

7v^3+6v^2+v-21v^2-18v-3

7v^3+6v^2-21v^2+v-18v-3

7v^3-15v^2-17v-3

You might be interested in

How to explain why a trapezoid is a quadrilateral but a quadrilateral is not always a trapezoid

Alex787 [66]

A quadrilateral is any figure with 4 sides, no matter what the lengths of
the sides or the sizes of the angles are ... just as long as it has four straight
sides that meet and close it up.

Once you start imposing some special requirements on the lengths of
the sides, or their relationship to each other, or the size of the angles,
you start making special kinds of quadrilaterals, that have special names.

The simplest requirement of all is that there must be one pair of sides that
are parallel to each other. That makes a quadrilateral called a 'trapezoid'.
That's why a quadrilateral is not always a trapezoid.

Here are some other, more strict requirements, that make other special
quadrilaterals:

-- Two pairs of parallel sides . . . . 'parallelogram'

-- Two pairs of parallel sides
AND all angles the same size . . . . 'rectangle'
   (also a special kind of parallelogram)

-- Two pairs of parallel sides
AND all sides the same length . . . 'rhombus'
   (also a special kind of parallelogram)

-- Two pairs of parallel sides
AND all sides the same length
AND all angles the same size . . . . 'square'.
   (also a special kind of parallelogram, rectangle, and rhombus)

5 0

3 years ago

Plzzz help me please I need the answers like right now so I’m counting on u guys to help me please who ever is correct get the B

postnew [5]

Sorry but you are cheating yourself but cheating in exams

I know but I will not say you real understand by yourself cheating is big than dying

5 0

3 years ago

Read 2 more answers

Jan pick 3/4 of a gallon of strawberries in a half an hour. If she keeps picking strawberries at the same rate, how many gallons

krek1111 [17]

2 divided by 1/2
2 x 2/1 = 4
3/4 x 4/1 = 12/3
12/3 = 4
4 gallons, Hope this helps!

8 0

4 years ago

Read 2 more answers

Previously 5% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of

mr Goodwill [35]

Answer:

p value = 0.03514

Step-by-step explanation:

Hypotheses would be

$H_0: p = 0.05\\H_a: p$

(left tailed test at 10% level of significance)

Here p stands for the sample proportion of mothers smoked more than 21 cigarettes during their pregnancy.

Sample size =130

persons who smoked = 2

Sample proportion = $\frac{2}{130} \\=0.0154$

Assuming H0 to be true

Std error= $\sqrt{0.05*0.95/130} \\=0.01911$

p difference = -0.0346

Test statistic z=-1.81

p value = 0.03514

Since p is less than 0.10, significance level, we reject H0

4 0

3 years ago

Function f approximately represents the trajectory of an airplane in an air show, where x is the horizontal distance of the flig

UNO [17]

Answer:

C. is your answer

Step-by-step explanation:

In order to determine the line of symmetry, it would help to put this standard form parabola into vertex form, which is

$y=a(x-h)^2+k$ ,

where x = h is the equation of the line of symmetry.

To get this into vertex form we will complete the square. The first couple of steps I will combine into 1. We will set the quadratic equal to zero, then move the constant over to the other side:

$88x^2-264x=-300$

The next rule is that the leading coefficient HAS to be a positive 1. Ours is a positive 88, so we have to factor it out:

$88(x^2-3x)=300$

Now we can perform the process of completing the square. The rule is to take half the linear term, square it, and add it to both sides. Our linear term is 3. Half of 3 is 3/2, and 3/2 squared is 9/2. We will add 9/2 inside the parenthesis on the left, but don't forget about that 88 sitting out front which refuses to be ignored. It serves as a multiplier into the parenthesis. What we actually added in, then, was 88(9/2) which is 198:

$88(x^2-3x+\frac{9}{4})=-300+198$

The purpose of completing the square is to give us a perfect square binomial which serves as the axis of symmetry of the parabola and also gives us the h coordinate of the vertex. We will state that binomial and at the same time do the addition on the right:

$88(x-\frac{3}{2})^2=-102$

Now we can move the constant back over and set it back equal to y:

$y=88(x-\frac{3}{2})^2+102$

From that form you can see that the equation of the line of symmetry is x = 1.5. The coordinates of the vertex are (1.5, 102). If we move 1 unit to the left of the vertex, or 1 unit to the right of the vertex, we will be at the same height.

C then is your answer.

3 0

4 years ago

Read 2 more answers