Mathematics High School

1. The numbers ______ and _____ are respectively the additive and multiplicative identities of rational numbers

Answers

Answer 1

Answer:  0 and 1, in that order

The numbers   0   and   1   are respectively the additive and multiplicative identities of rational numbers.

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Explanation:

The additive identity is 0 because adding 0 to any number leads to the original number. For instance, 7+0 = 7. In general we can say x+0 = x or we could also say 0+x = x.

The multiplicative identity is 1 because multiplying 1 with anything leads to that original number. Example: 1*5 = 5 or 9*1 = 1. The general template is x*1 = x which is the same as saying 1*x = x.

These ideas not only apply to rational numbers, but to real numbers as well.

Related Questions

Please help me with the attachment below

Answers

a = 70 (vert. opp. angles)
a+b+90 = 180 (adj. angles on st.line)
70+b+90 = 180
b = 180-90-70
b = 20

Marking brainliest

Please help

Answers

(1.83x) - 75.00

where x = # of cupcakes sold

So if 1 cupcake was sold...

1.83 x 1 = 1.83 -75.00 = -73.17

And if 5 cupcakes were sold...
1.83 x 5 = 9.15 -75.00 = -65.85

In order to earn a profit they’d have to sell 41 cupcakes...
1.83 x 41 = 75.03 - 75.00 = 0.03 (the first non negative answer to this equation would only happen after 41 cupcakes are sold)

A. X=9
B. X=14
C. X=16
D. X=12
E. X=10

Answers

Answer:

Angle K is 1/2 the measure of arc JL, so JL = 228.  Add arc KL to arc JL to get 268 and subtract from 360. 360 - 268 = 92. 8x - 36 = 92. X = 16.

Step-by-step explanation:

On a map, the distance from Langhorne to Tannersville measures 2 centimeters. What is the actual distance if the scale of the map shows that 1 centimeter is equal to 30 kilometers?

Answers

Answer:

I believe the answer is 60 kilometers.

Step-by-step explanation:

Please Help!
Jen stopped at Littletown Market to buy 45 cookies for her book club. Littletown Market sells 9 cookies for $5. On her way home, Jen passed by another store, Collegetown Bakery. Collegetown Bakery sells 5 cookies for $3. Jen figured out she got the better deal. How much did she save by buying her cookies at Littletown Market?

Answers

Answer:

I believe she saves $18

Step-by-step explanation:

Because 5 x 9 is 45 and 3 x 9 is 27 45-27 is 18 so i think its $18 but I could be wrong

Im taking an algebra exit exam that I need for high school, tips on what to study or do?

Answers

i took this kinda test and what i did was search up subjects for algebra 1 and practice each one or look at videos

Given P(A and B)= 0.09, P(B)= 0.25. FIND P(A given B)

A:0.34
B:0.29
C:0.02
D:0.36

Answers

Answer:

the answer would be C

Step-by-step explanation:

Help with math question please

Answers

the answer would be a

A point with a positive x-coordinate and a negative y-coordinate is reflected over the y-axis.
Which sentence describes the coordinates of the new point?
The x-coordinate is positive, and the y-coordinate is positive.
The x-coordinate is negative, and the y-coordinate is negative.
The x-coordinate is negative, and the y-coordinate is positive.
The x-coordinate is positive, and the y-coordinate is negative.
Done

Answers

Answer:

The x-coordinate is negative, and the y-coordinate is negative.

Step-by-step explanation:

(x, -y)

When you reflect over the y-axis, the x-coordinate becomes negative:

(-x, -y)

HELP ME PLEASEE !!!!

Answers

Answer:

y=179

Step-by-step explanation:

the statement is true.

you need to replace (x) for 4 and solve

y= 40(4) + 19

y=160 + 19

y=179

it costs 179$ for 4 weeks so the statement is true

Write the following phrase as an algebraic expression. Use b for the unknown. A number split into 18 equal parts

Answers

Answer:

b/18

Step-by-step explanation:

One of the legs of a right triangle measure 7 centimeters in the other leg measures 3 centimeters. Find the measure of the hypotenuse.

Answers

Answer:7.6

Step-by-step explanation:

HELP ASAP PLS
Find the volume

Answers

Answer:

637 in^3

Step-by-step explanation:

V=(BxH)/2

V=((13x7) x 14)/2

V=(91x14)/2

V=1274/2

V=637 in^3

Answer is 424.6 in2

To find the volume of a square-based pyramid, you use this equation:

1/3 x base area x height

Substitute in the values.

1/3 x (13 x 7) x 14

= 424.6 in2

Solve 1/2 cot(x) >= over 0 <= x <= 2pi

Answers

Answer: answer is b on edg

Step-by-step explanation:

5) Samantha uses 14 gallons of gas for every 110 miles she drives. How
many gallons does she use if she drives 215 miles?

Answers

27 and 13/33 gallons

find the measure of x.

Answers

Answer is x= 60
Step by step exploration

What is median if it’s 29,8,11,29,29,6,49 if the mean is 23

Answers

I think it will be 29

as an estimation we are told 5 miles is 8km convert 30
miles to km

Answers

Find the scale:

30 miles / 5miles = 6

Multiply km by the scale:

8 km x 6 = 48 km

The answer is 48 km

Answer: 48km

Step-by-step explanations:. It's just simple cross multiplication.

5miles----->8km

30miles---->?km

Answer is ( 30×8)÷5= 48km

A cylinder has a diameter of 8 inches and a volume of 128 cubic inches.What is the height of the cylinder?

Answers

16,

You divide 128 ÷ 8

Find the missing side

Answers

Answer:

Step-by-step explanation:

[tex]\sqrt{61}[/tex]

what is the axis of symetery for (0,-4)

Answers

Answer:

the axis of symmetry is 0 which is x=0

Step-by-step explanation:

4/3 divided by 12= simplified and fraction form!

Answers

Answer:

[tex]{\huge\pink{\fbox{{࿐αɴѕωєя࿐}}}}[/tex]

[tex] \frac{4}{3} \div 12 \\ = \frac{4}{3} \times \frac{1}{12} \\ = \frac{4}{3 \times 12} \\ = \frac{4}{36} \\ = \frac{1}{9 } \\ = 0.11[/tex]

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[tex] \huge\red{ \mid{ \underline{ \overline{ \tt ꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐ }} \mid}}[/tex]

Answer:

1/9 is the answer

4/3 x 1/12 just multiply but the reciprocal

hope this helps

have a good day :)

Step-by-step explanation:

( NO LINKS ) If x=7, is this equation true? 7 + 9x > 73 *


option 1: Yes
option 2: No

Answers

Answer:

This is FALSE.  Choose Option 2

Step-by-step explanation:

Substituting 7 for x, we get

7 + 9(7) > 73, or 70  73.  This is FALSE.  Choose Option 2

Answers to these please no links or files

Answers

I think the answer is 4. She my attached picture of my work! I hope this helps you,have a great day!

Will give brainliest if right

O D. The fewest students prefer sliver Model 66 calculators.

Answers

Answer:

B

Step-by-step explanation:

Other two are not true! A is untrue bc .90 pefer silver calculators. C-  .25 want model 55, and .32 for Model 77

Two points (2, 10) and (-4,4) lie on a
line. What is the y-intercept of that
line?

Answers

Answer:

The y-intercept is 8.

Step-by-step explanation:

[tex]\frac{2+4}{10-4\\} \\\frac{6}{6} =1\\\\\\slope=1\\1(2)+y=10\\2-2+y=10-2\\y=8[/tex]

The height, h in feet, of a tennis ball that a player hit upward can be modeled by the equation h = 80t – 16t² , where t is time in seconds.
a) What is the maximum height of the ball?
b) How long does it take to reach the maximum height?
c) How long does it take for the ball to land?

Answers

Here's link[tex]^{}[/tex] to the answer:

bit.[tex]^{}[/tex]ly/3gVQKw3

no links will give brainly
A certain television is advertised as a 38-inch TV (the diagonal length). If the width of the TV is 29 inches, how tall is the TV? Round to the nearest tenth of an inch.

Answers

Answer:

38^2 - 29^2 = 603 ---> height = sqrt(603) = 24.6 inches

What is 7,648 rounded to the nearest hundred?

Answers

Answer:

7,600.

Step-by-step explanation:

The 6 is the hundreds digit - as the next digit after it is 4 we leave the 6 as it is  so the answer is 7,600.

Answer:

7600

Step-by-step explanation:

First, 7648 rounded to the nearest hundred is:

7600

Can someone find the function for this please “If f(x) = 4x - 11, find the values of f(x)
for the domain of {-3, 1,5}.”

Answers

Answer:

13,3,9

Step-by-step explanation:

f(3)=4(-3)-1

= -12-1

=13

f(1)=4(1)-1

= 4-1

= 3

f(5)=4(5)-11

= 20-11

= 9

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