Ask question

Ask question

All categories

Y_Kistochka [10]

3 years ago

14

3. The number of dogs at The Great North Dog Walk in 2011 rounded to the nearest thousand, is 23,000. Which could be the exact n

umber of dogs?

1 answer:

saul85 [17]3 years ago

7 0

The exact number of dogs is between 22,500 - 23,499

You might be interested in

Write the equation of the line passing through points (2,-2) and (1,0) in slope intercept form.

katrin2010 [14]

Answer:

y=-2x+2

Step-by-step explanation:

hope it helps!

8 0

3 years ago

Read 2 more answers

Which of the following values are solutions to the inequality 10+ x > 7?

Tanzania [10]

Answer:

II

Step-by-step explanation:

All the other options create a number that is smaller than 7, while the inequality suggests otherwise.

While, II create the number 9 - which is indeed bigger then 7

Glad to help ÷)

7 0

4 years ago

To round the number to the hundredths place, what should be done first?

Oksanka [162]

Answer:

b

Step-by-step explanation:

5 0

3 years ago

System of Equations <br> Need help<br> Trig

Yanka [14]

Looks like the system is

$\begin{cases}-2x+y+6z=1\\3x+2y+5z=16\\7x+3y-4z=11\end{cases}$

We can eliminate $y$ by taking

$(3x+2y+5z)-2(-2x+y+6z)=16-2(1)$

$\implies3x+2y+5z+4x-2y-12z=16-2$

$\implies7x-7z=14$

$\implies x-z=2$

so that $z=x-2$ , and

$(7x+3y-4z)-3(-2x+y+6z)=11-3(1)$

$\implies7x+3y-4z+6x-3y-18z=11-3$

$\implies13x-22z=8$

Substitute $z=x-2$ into this last equation and solve for $x$ :

$13x-22(x-2)=8$

$\implies13x-22x+44=8$

$\implies-9x=-36$

$\implies x=4$

Then

$z=x-2$

$\implies z=4-2$

$\implies z=2$

Plug these values into any one of the original equation to solve for $y$ :

$-2x+y+6z=1$

$\implies-2(4)+y+6(2)=1$

$\implies-8+y+12=1$

$\implies y=-3$

Hence the solution is x = 4, y = -3, and z = 2.

6 0

4 years ago

Find the value of f(–3) and g(3) if f(x) = –6x + 3 and g(x) = 3x + 21x–3.

ryzh [129]

Answer:

f(-3) = 21

g(3) = 69

Step-by-step explanation:

We have been given the following functions;

f(x) = –6x + 3

g(x) = 3x + 21x–3.

To find f(-3) , we simply substitute x = -3 in the function of f(x);

f(-3) = -6(-3) + 3

= 21

To find g(3) , substitute x = 3 in the function of g(x);

g(3) = 3(3) +21(3) - 3

= 69

3 0

3 years ago