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Answer:

#1-

The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends. The seven rows of the table, called periods, generally have metals on the left and nonmetals on the right. The columns, called groups, contain elements with similar chemical behaviours. Six groups have accepted names as well as assigned numbers: for example, group 17 elements are the halogens; and group 18 are the noble gases. Also displayed are four simple rectangular areas or blocks associated with the filling of different atomic orbitals. #2-118

Step-by-step explanation:

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71.5 71.5 What is the measure of ∠T

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giving extra points and brainlest if you show on a piece of paper on how to solve-thank you please be serious or i will take away points.

1. 17.4 - _____ = 9.8
2. 5.3 -_____=21
3. 664-_____=406
4. 124 -_____= 52

What is the difference between a sample and a population?
a. Populations only consider a portion of the sample being studied. This answer is incorrect.
b. Samples are generally much larger than populations.
c. Populations do not always represent the entire group of people in question.
d. Samples only consider a portion of the population being studied.

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Which angles shown in the drawing are supplementary?

https://dw6y82u65ww8h.cloudfront.net/organisations/328/f8eb1048-7c08-416a-bf24-6e5eeb072548/img_intersecting_lines_d.gif


∠EBA and ∠DBC
∠ABD and ∠ABE
∠CBE and ∠ABD
∠EBC and ∠ABE

Two cities are 64 miles apart. If the distance on the map is 314 inches, what is the scale of the map? Round to the nearest tenth of a mile if necessary.

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What is the measure of angle x?

Enter your answer in the box.
x = °

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Figure B is the image of figure A. Which rule describes the transformation that was applied to triangle A to create triangle B?

Please Show work and explain.

1. The enrollment in dance class is currently 80 students and is increasing at a rate of 4 students per term. The enrollment in choir is 120 students and is decreasing at a rate of 6 students per term. After how many terms will the number of students in dance equal the number of students in choir? How many students will be in each class?

2. Horizon Phone Company charges $15 a month plus 10 cents per text. G-Mobile charges a flat rate of $55 per month with unlimited texting. At how many texts would the two plans cost the same? Which plan is the better deal if you send 200 texts per month?

To graph the point (2, 10) on the coordinate plane, start at the origin. Move 2 units _______ and 10 units ________ . 40 points

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Deon feeds his Great Dane 62 cups of dog food per week. He has a new bag with 160 cups of dog food. Deon will pick up more dog food at the pet store in 2 1··2weeks. Will the new bag of food last until then? Show your work.

Moira mailed two birthday presents in a box weighing 1/4 pound. One present weighed 1/5 pound. The other present weighed 1/2 pound. what was the total weight of the box and presents?

PLS HELP! (Picture included)
A slice is made parallel to the base of a right rectangular pyramid, as shown.

What is the area of the resulting two-dimensional cross-section?

Enter your answer in the box.
cm²

Rectangular pyramid intersected horizontally by a rectangle. The front edge of the base of the pyramid is labeled 2 centimeters, and the right edge is labeled 4 centimeters. The height of the pyramid is labeled 8 centimeters. The part of the larger rectangle that intersects the pyramid is a smaller gray rectangle. The front side of the smaller rectangle is labeled 1 centimeter, and the right side is labeled 2 centimeters.

What is the formula for distance?
A. d = r + t
B. d = r – t
C. d = rt
D. d= r/t

Hannah buys 3 pairs of shoes for $x each. She uses a $10 off coupon. She
spent a total of $35. Write an equation that can be used to find the cost of each pair of shoes.

PLZZZ help with this its pretty simple!

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please help me with this math problem, i am stuck and i don't get it, give the correct answer and explain how you got it, please and thank you! <3 i will give the brainiest if it is correct and i will also give a thanks!

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Help! Attachment Below!

A computer randomly selects a number from the given set.

{2, 4, 6, 9, 16, 44, 51, 60, 78}

What is the probability that a number less than 10 is selected?

Enter your answer as a fraction, in simplest form, in the box.

P(< 10) =

Question 3 options:

5/9

4/9

2/9

8/9

A.) 61
B.) 48.8
C.) 39

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Determine whether each sample is unbiased with complete sentences.

The population is every pet at an animal shelter.

A. Sample: Every dog is used as the sample.

B. Sample: The animals are grouped by species (dog, cat, rabbit, etc.), and five animals from each group are randomly selected to determine their age.

C. Sample: Every animal's name is dropped into a container, and 15 names are pulled out of it.