1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mylen [45]
2 years ago
15

Use a number line to add or subtract. 3−(-1)=

Mathematics
1 answer:
Bogdan [553]2 years ago
8 0

Answer:

4

Step-by-step explanation:

rule 1 positive + positive= positive

rule 2 negative plus negative = negative

You might be interested in
A bag contains 6 blue marbles, 4 red marbles, and 2 yellow marbles. What is the probability of selecting a blue marble, replacin
musickatia [10]
The answer would be A. 1/4 bc you add all the marbles together then divide by the amount of the color you’re looking for
6 0
3 years ago
How many odd numbers are greater than 30 and<br> less than 40?
Lana71 [14]

Answer:

5 odd numberis there 31,33,35,37,39

3 0
3 years ago
One of the legs of a right triangle measures 9 cm and the other leg measures 11 cm.
ikadub [295]

Answer:

\boxed {\boxed {\sf 14.2 \ cm}}

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean Theorem to solve for the sides.

a^2+b^2=c^2

where <em>a</em> and<em> b</em> are the legs and <em>c</em> is the hypotenuse. In this triangle, we know the legs are 9 centimeters and 11 centimeters, or:

  • a= 9 cm
  • b= 11 cm

Substitute these values into the formula.

(9 \ cm)^{2}  +(11 \ cm)^{2} =c^{2}

Solve the exponents.

  • (9 cm)²= 9 cm*9 cm=81 cm²

81 \ cm^{2}  +(11 \ cm)^{2} =c^{2}

  • (11 cm)²= 11 cm*11 cm= 121 cm²

81 \ cm^{2}  +121 cm^{2} =c^{2}

Add the values on the left side.

202 \ cm^{2} =c^{2}

Since we are solving for c, we must isolate the variable. It is being squared and the inverse of a square is the square root. Take the square root of both sides.

\sqrt {202 \ cm^{2} }=\sqrt{c^{2} }

\sqrt {202 \ cm^{2} }=c

14.2126704036 \ cm =c

We are told to round to the nearest tenth.

  • 14.2<u>1</u>26704036

The 1 in the hundredth place tells us to leave the 2 in the tenth place.

14.2 \ cm= c

The hypotenuse is equal to <u>14.2 centimeters.</u>

3 0
3 years ago
1. the prices for 6 different jerseys are
Musya8 [376]

Answer:

Step-by-step explanation:

8

5 0
2 years ago
Please Help!!!!!!
QveST [7]
It means you're putting money into your account
8 0
3 years ago
Read 2 more answers
Other questions:
  • Hee Sun wants to estimate the average world length in a book. She randomly chooses 20 words in the book, as shown. Based on this
    12·1 answer
  • The formula to find the perimeter of a regular polygon is P = n × s. This means that you multiply the number of sides times the
    6·1 answer
  • Jim weighs 30 pounds less than Tom, and together they weigh 210 pounds. Let n = Tom's weight in pounds. How much does Tom weigh?
    5·1 answer
  • -15+23x – 10x² + 12x4<br> What is the degree
    10·2 answers
  • Find the range of the data. <br><br> 98, 21, 52, 39, 45 76
    10·2 answers
  • Perimeter, Circumference,
    10·1 answer
  • A) Write the sequence of natural numbers which are multiplied by 3 ?
    11·1 answer
  • WHAT IS THE SURFACE AREA DUE BY FIVE PM WITH STEPS PLZ I WILL GIVE BRAINLIEST ANSWERS
    9·1 answer
  • Factorize fully and also write in simplest form <img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B3x-10" id="TexFormula1" title
    5·2 answers
  • R(2)=120 and r(4)=378 divide the difference in the r(x) values by the difference in the x-value
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!