D=u^2/2a
u=30.6 correct to 3 significant figures
a=5.2 correct to 2 significant figures

a) Calculate the upper bound for the value of D. Give your answer correct to 6 significant figures.

The lower bound for the value of D is 88.8860 correct to six significant figures.

b)
i) By considering bounds, write down the value of D to a suitable degree of accuracy.
ii) Give a reason to your answer

​

Answer:

B

Step-by-step explanation:

Answer:

2x+4

Step-by-step explanation:

5-3(x+2)

2(x+2)

2x+4

Answer:

x = 7/10; y = 21/5

Step-by-step explanation:

y = 6x

4x + y = 7

Since the first equation is already solved for y, we can easily use the substitution method. We substitute 6x for y in the second equation and solve for x.

4x + y = 7

4x + 6x = 7

10x = 7

x = 7/10

Now we use the first equation and substitute 7/10 for x and solve for y.

y = 6x

y = 6 * 7/10

y = 42/10

y = 21/5

Answer: x = 7/10; y = 21/5

Answer:

3/4

Because 6 are not white so 6/8 and divide each by 2

6 divided by 2 = 3

8 divided by 2 = 4

= 3/4

Step-by-step explanation:

Hope this helps her!!!

Answer:

not sure

Step-by-step explanation:

Following are the calculation to the given coordinates:

[tex]\to T (-2, 5)[/tex]

[tex]\to[/tex] (-2, 5) is the image (-2, -5).

Also, as a result, the coordinates of point T' after the Ry-axis are as follows: (2, 5).

[tex]\to[/tex] (-2, 5) is the image (-2, -5).

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Answer:

z=11/15

Step-by-step explanation:

z=1/3+2/5=1x5/15+2x3/15=5/15+6/15=11/15

Answer:

$145

Step-by-step explanation:

10×12=120+25=145

Answer:

p = 3

Step-by-step explanation:

22 - 7 = 15

5p = 15

p = 15 ÷ 5 = 3

Answer:

What are the answers?

Step-by-step explanation:

because the ratio is 25:1 aka 25 pages: 1 minute

Given:

The table of values is:

x      y

-4     3

0     8

4     13

8     18

To find:

The slope of the line that described by the data in the table.

Solution:

Consider any two points from the given table.

Let the two points are (0,8) and (4,13). So, the slope of the line is

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\dfrac{13-8}{4-0}[/tex]

[tex]m=\dfrac{5}{4}[/tex]

[tex]m=1.25[/tex]

Therefore, the slope of the line described by the data in the table is 1.25.

Answer:

11.35%  

Step-by-step explanation:

Add all of the numbers together to get the total amount of people who visited.

Add all the numbers in the teen section to find how many teens visited.

If you put teens over whole it will give you the fraction 86/758

If you divide 86 by 758 you will get 0.11345646438 .

Move the decimal two places to the right and round to get the percent 11.35.

Answer:

260 dollars

Step-by-step explanation:

The amount after  10 years will be $260.

The interest that is calculated using both the principal and the interest that has accrued during the previous period is called compound interest. It differs from simple interest in that the principal is not taken into account when determining the interest for the subsequent period with simple interest. Compound interest is commonly abbreviated C.I. in mathematics.

Given amount invested = $220

rate = 1.7% compounded annually

time = 10 years

the amount is  given by

A = p[tex](1 + \frac{r}{n} )^{nt}[/tex]

r = 1.7% = 0.017

n = 1 for compounded annually

t = 10 years

p = $220

A = 220(1 + 0.017)¹⁰

A = $260.39

A = $260

Hence the amount is $260.

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Answer:

Negative line/slope

Step-by-step explanation:

Slope format: y = mx + b

If the slope (mx) is negative, then the slope of the line is negative

Answer:

first box    y=4/7x+2

second box y=-1/7x+2

thrid box y=x+2

4th box y+1/7x+2

Step-by-step explanation:

The equation of the line of best fit that it models. y = 4/7x + 2, y = -1/7x + 2, y = x + 2 and y +1/7x + 2.

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

The tiles to the correct boxes to the pairs.

The equation of the line of best fit that it models.

First box   y = 4/7x + 2

Second box y = -1/7x + 2

Thrid box y = x + 2

Fourth box y +1/7x + 2

Learn more about linear equations;

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Answer:

Angle CDB = 32

Step-by-step explanation:

Here, we want to find the measure of CDB

Mathematically;

angle DCB = 90

This is because angle at the center is twice the angle at the circumference

Also;

angle CAD = angle CBD = 58

This is because they are angles in the same segment

Furthermore;

CDB + 90 + 58 = 180

This is because sum of angles in a triangle is 180

CDB = 180-90-58

CDB = 32

Answer:

Not larger or smaller; the areas are the same

Step-by-step explanation:

Recall that the formula for the area of a triangle of base b and height h is

A = (1/2)(b)(h).

In the first case, h = 3 ft and b = 2.5 ft.  This results in an area of 3.75 ft^2.

In the second case, h = 2.5 ft and b = 3 ft.  The area is the same:  3.75 ft^2.

This is because A = (1/2)(b)(h) has the same value regardless of the order in which b and h  are used as multipliers.

There is no difference in the areas of the two signs.  The areas are the same.

Answer: No, you cannot.

Step-by-step explanation: A square number cannot be a perfect number.

The numbers: 0, 1, 5, 14, 30, 55, 91, 140, 204, 285, 385, 506, 650, 819, 1015, 1240, 1496, 1785, 2109, 2470, 2870, 3311, 3795, 4324, 4900, 5525, 6201 are examples of perfect numbers.

Answer:

did u just answer your own question

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

please follow rate thank

Answer:

no answers yet

Step-by-step explanation:

Answer:

what graph ? i do not see one

Step-by-step explanation:

Answer:

here... I want to help so if your real stuck, then use this app...

Step-by-step explanation:

https://photomath.app/en/

Step-by-step explanation:

g(fx)=g(3x+5)

= (3x+5)²+1