All categories

3 years ago

Can someone please help me with the unanswered problem in the attachment?:[

Mathematics

1 answer:

Delvig [45]3 years ago

4 0

You have to divide 81 and 9

Answer: 9

You might be interested in

mrs. ellis wants to tile a rectangular room that is 16 feet long and 12 feet wide with square tiles. each square floor is 2 feet

Alchen [17]

The room has 16*12= 192 feet

192:2=96 tiles need Mrs Ellis

96*0,84 $=80,64 $ is the cost

7 0

3 years ago

(x - 1) (x – 12) = 0<br> What’s the value of X?

Over [174]

Answer:

either 1

or 12

(sorrryy if its not correct:( )

Step-by-step explanation:

7 0

3 years ago

Lydia graphed ΔDEF at the coordinates D (−2, −1), E (−2, 2), and F (0, 0). She thinks ΔDEF is a right triangle. Is Lydia's asser

alukav5142 [94]

Answer:

No; the slopes of segment EF and segment DF are not opposite reciprocals.

Step-by-step explanation:

The slope between two points O(e, f) and X (g,h) is given as:

$slope\ of\ |OX|=\frac{h-f}{g-e}$

The slopes of segment EF and segment DF are given below:

$slope\ of\ |EF|=\frac{0-2}{0-(-2)}=-1\\\\slope\ of\ |DF|=\frac{0-(-2)}{0-(-1)}=2\\$

For triangle DEF to be a right triangle, DF and EF are supposed to be perpendicular to each other. Two line are said to be perpendicular if the product of their slope is -1, i.e the slope of one line is the negative reciprocal (opposite reciprocal) of the other line.

Since the slope of DF and EF are not opposite reciprocals, ΔDEF is not a right triangle.

3 0

3 years ago

The numbers 1-10 are written on note cards and placed in a bag. One card will be drawn from the bag at random..

marusya05 [52]

Answer:

Sample space: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

Yes, both have 50% probability

No, first event has 30% probability and second one has 20% probability

Step-by-step explanation:

As we have a total of 10 note cards, each if a number from 1 to 10 (each card with a different number) and we want to draw one card at random, the sample space is each of the 10 numbers in the note (sample space with 10 elements):

1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

From this 10 numbers, we have a total of 5 odd numbers and 5 even numbers, so the events of selecting an even number and selecting an odd number are equally likely (the probability of both events are 5/10 = 50%)

The numbers from the sample space divisible by 3 are:

3, 6, 9 (so a total of 3 elements, probability of 3/10 = 30%)

The numbers from the sample space divisible by 5 are:

5, 10 (so a total of 2 elements, probability of 2/10 = 20%)

As the probabilities are different, these events are not equally likely

6 0

3 years ago

lian has three lines on the board. lines m and n are parallel. lian says that the measure of <2 is 2/3 of the measure <1.

Artyom0805 [142]

Answer:

Its 3

Step-by-step explanation:

7 0

3 years ago

Can someone please help me with the unanswered problem in the attachment?:[​

Can someone please help me with the unanswered problem in the attachment?:[