The quadratic function below represents a parabola that opens down. Which value could be the missing number in the equation ? The missing coefficient could be ?

Answers

Answer 1

Answer:

Answer:

-4

Step-by-step explanation:

The direction of the parabola depends on the sign of the leading coefficient i.e. sign of the coefficient with the squared term.

Remember these two points for vertical parabola:

If the leading coefficient is positive the parabola will always open upwards
If the leading coefficient is negative the parabola will always open downwards

We are given that the parabola opens down. This means that the leading coefficient must be negative. Among the given options only one option contains a negative number i.e. -4.

Therefore, the missing coefficient could be -4

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If x + 7 divide by 13 equals 13 what is x

Answers

Answer:162

Step-by-step explanation:

(X+7)/13=13/1

Cross product

X+7=169

X=169-7

X=162

A)The equation of a line β is 2x-3y=6find the gradient of β
b) find the equation of the line which is parallel to β and passes through the point (6,9)

Answers

Answer:

a) 2/3

b) $y = (2)/(3) x + 5$

Step-by-step explanation:

b) From my previous answer...

Since parallel lines have the same gradient,

the gradient of the line is 2/3 too.

Thus, m= 2/3.

y= 2/3x +c

Now substitute a coordinate into the equation to find c, the y-intercept.

When x=6, y=9,

9= (2/3)(6) +c

9= 4 +c

c= 9 -4

c= 5

Thus the equation of the line is y= 2/3x +5.

What is 0.506 rounded to the nearest hundredth

Answers

0.500 that what is the answer would be

the hundredths place is the 0 look to the number right of it is it 5 or higher? yes so add 1 more to the number your rounding 0.506 now equals 0.51

What does the cursive r thing mean

Answers

Whatttttttttt I don't get what you are trying to say but cursive means a right print r a normal r

The cursive R means R

Parallel and perpendicular line

Answers

I think D! Have a great day :)

Pedro is building a spice rack with 4 shelves that are each 0.55 meter long. At the hardware store, Pedro finds he can only buy the shelving in whole meter lengths. Exactly how many meters of shelving does Pedro need? Since he can only buy whole number lengths, how many meters of shelving should he buy?

Answers

you multiply the numbers
4X0.55= 2.2

but since you need that 0.2 to complete the self you round up to 3

Pedro should buy $\boxed{\bf 3\text{\bf\ meters}}$ of the shelving.

Further explanation:

Procedure used:

The following steps are involved to find the value of $y\text{ unit}$ where $y$ is any real number.

1) If one unit is $x$ then multiply $y$ with $x$ .

2) The resultant number is $xy$ .

Given:

Pedro is building a spice rack with $4\text{ shelves}$ and length of each rack is $0.55\text{ meters}$ . He can only buy whole number of lengths.

Calculation:

Step 1:

The length of the shelf is $0.55\text{ meter}$ .

Multiply $4$ by $0.55$ to calculate the length of $4$ shelves.

$\begin{aligned}l&=\4* 0.55\n&=2.20\end{aligned}$

Here, $l$ represents the length of the $4$ shelves.

Step 2:

Pedro can only buy whole number lengths.

In the $\text{step }1$ we can see the length of the shelf is not appropriate as he can by only whole numbers.

Pedro needs exactly $2.2\text{ meters}$ of shelving.

Therefore, the number $2.20$ lies between $2$ and $3$ .

The number $2$ is not correct as the length should be at least $2.20\text{ meters}$ .

Therefore, Pedro should buy $3\text{ meters}$ of the shelving.

Thus, the required length of the shelf is $\boxed{\bf 3\text{\bf\ meters}}$ .

Learn more:

1. Learn more about the representation of the graph brainly.com/question/2491745

2. Learn more about the graph of the quadratic function brainly.com/question/2334270

3. Learn more about graphed below of the function brainly.com/question/9590016

Answer details:

Grade: Junior school

Subject: Mathematics

Chapter: Units and measurement

Keywords: Pedro, spice rack, meters, building rack, shelf, lengths, measurement, unit, decimal, fractions, numbers, numbering system, rational number, whole numbers.

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