All categories

3 years ago

Please soon as you see this help I need to bring this in by tomarrow

Mathematics

2 answers:

balu736 [363]3 years ago

8 0

Question 1 the fourth figure uses two extra toothpicks and the second question the figure uses three extra tooth picks. There are more toothpicks needed for the second figure of the second question than the second question

Rzqust [24]3 years ago

3 0

1. There is a pattern. In figure 2, there were two toothpicks added.

2.Same thing with the pattern. you add three toothpicks in each figure.

You might be interested in

Find the original price of a pair of shoes if the sale price is $40 after a %20% discount.

borishaifa [10]

That would be around $200. Because you would take 40 devide by .2 and get 200.

4 0

2 years ago

24. Laisha paid for her and a friend to go to the movies. She

sammy [17]

Answer:

$26.91

Step-by-step explanation:

9.50 +13.93 =23.43

50.34 - 23.43 = 26.91

4 0

2 years ago

Peter inherits 15.000 dollars and place money with a bank. The interest rate are 3 percent. How many money will he get after 1ye

NeTakaya

The simplest form of an interest equation is A = P(1+rt)

where A = the total amount of money at the end, P = the principal (or amount of money you started with), r = the rate in percent, and t = the time in years.

In this case, P = 15000, r = 0.03 (because 3% in decimal form is 0.03), and t = 1:

$A=P(1+rt)\\A=15000(1+0.03*1)\\A=15000(1+0.03)\\A=15000(1.03)\\A=15450$

So, after 1 year he will get $15450 back, making him $450 more.

5 0

3 years ago

A number, x, rounded to 1 decimal place is 3.7<br> Write down the error interval for x.

soldier1979 [14.2K]

Answer: (3.65, 3.74)

Step-by-step explanation:

Now, when we round a number to a given decimal place, we need to look at the decimal to the left of the decimal place where we are rounding.

if it is 5 or more, we round up

if it is smaller than 5, we round down.

Then for example, if we want to round:

4.534

to the first decimal place, we need to look at the second decimal place.

we can see that it is a 2.

Then we round down, and get:

4.5

Now we know that, when rounding to the first decimal place, we have:

x = 3.7

Then the maximum value that x could have is:

x = 3.74 (because here we round down to 3.7)

and the minimum value that x could have is:

x = 3.65 (because here we round up to 3.7)

Then the error interval for x is:

(3.65, 3.74)

6 0

2 years ago

Solve the system. -3x-y=10; y-4z=-13; x-4y+z=4

kvasek [131]

9514 1404 393

Answer:

(x, y, z) = (-3, -1, 3)

Step-by-step explanation:

Many graphing calculators can solve matrix equations handily. Here, we use a combination of methods.

Use the last equation to write an expression for z.

z = 4 -x +4y

Substitute this into the second equation:

y -4(4 -x +4y) = -13

y -16 +4x -16y = -13

4x -15y -3 = 0

In genera form, the first equation can be written as ...

3x +y +10 = 0

Now, the solution to these two equations can be found to be ...

x = (-15(10) -1(-3))/(4(1) -3(-15)) = (-150 +3)/(4+45) = -3 . . . using "Cramer's rule"

y = -(10 +3x) = -(10 -9) = -1 . . . . from the first equation

z = 4 -(-3) +4(-1) = 3 . . . . . . . . from our equation for z

The solution to the system is (x, y, z) = (-3, -1, 3).

_____

<em>Additional comment</em>

Written as an augmented matrix, the system of equations is ...

$\left[\begin{array}{ccc|c}-3&-1&0&10\\0&1&-4&-13\\1&-4&1&4\end{array}\right]$

4 0

2 years ago