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
maksim [4K]
3 years ago
14

Plzzz helpppp meeee aaaasssaaappp​

Mathematics
2 answers:
Daniel [21]3 years ago
7 0

Answer:

  • 19
  • 77

Step-by-step explanation:

4.

-64-(-83)\\\\\mathrm{Apply\:rule}\:-\left(-a\right)=a\\\\=-64+83\\\\\mathrm{Add/Subtract\:the\:numbers:}\:-64+83=19

5.

Kim = 65 \:points\\Sister =-12\\\\Difference = 65-(-12)\\\\\mathrm{Apply\:rule}\:-\left(-a\right)=a\\\\=65+12\\\\=77

lidiya [134]3 years ago
5 0

Answer:

4. Answer is 19

5. Answer is 77

Step-by-step explanation:

65-(-12)

= 65+12

=77

You might be interested in
The coordinates of the intersection of two lines on a graph represent the values of__ and __ when you solve the system of equati
Neko [114]

Answer:

The coordinates of the intersection of two lines on a graph represent the values of <u>x</u> and <u>y</u> when you solve the system of equation.

Step-by-step explanation:


4 0
3 years ago
Write the algebraic expression for the difference between the squares of two numbers.
V125BC [204]

The algebraic expression for the difference between the squares of the two numbers, supposing the two numbers to be a and b, is

a² - b² = (a + b)(a - b).

An algebraic expression is a combination of terms, where the terms are separated using mathematical operators like plus (+), minus (-), multiply (*), and divide (/).

The terms are combinations of numerals and variables.

Variables are represented alphanumerically, which can hold any value as per the expression they are used in.

In the question, we are asked to write the algebraic expression for the difference between the squares of two numbers.

We assume the two numbers to be a and b respectively.

Thus, we are asked to write an expression for the difference between the square of a and square of b, that is, we are asked to write an expression for a² - b².

We know that a² - b² is an identity, which can be shown as (a + b)(a - b).

Thus, the algebraic expression for the difference between the squares of the two numbers, supposing the two numbers to be a and b, is a² - b² = (a + b)(a - b).

Learn more about algebraic expressions at

brainly.com/question/2241589

#SPJ4

6 0
1 year ago
Solve the system by substitution
Andru [333]
A solution on the photos

4 0
3 years ago
Read 2 more answers
The mean incubation time of fertilized eggs is 21 days. Suppose the incubation times are approximately normally distributed with
Korvikt [17]

Answer:

a) 20.16; b) 20.49 and 21.51

Step-by-step explanation:

We use z scores for each of these.  The formula for a z score is

z=\frac{X-\mu}{\sigma}.

For part a, we want the 20th percentile; this means we want 20% of the data to be lower than this. We find the value in the cells of the z table that are the closest to 0.20 as we can get; this is 0.2005, which corresponds with a z score of -0.84.

Using this, 21 as the mean and 1 as the standard deviation,

-0.84 = (X-21)/1

-0.84 = X-21

Add 21 to each side:

-0.84+21 = X-21+21

20.16 = X

For part b, we want the middle 39%.  This means we want 39/2 = 19.5% above the mean and 19.5% below the mean; this means we want

50-19.5 = 30.5% = 0.305 and

50+19.5 = 69.5% = 0.695.

Looking these values up in the cells of the z table, we find those exact values; 0.305 corresponds with z = -0.51 and 0.695 corresponds with z = 0.51:

-0.51 = (X-21)/1

-0.51 = X-21

Add 21 to each side:

-0.51+21 = X-21+21

20.49 = X

0.51 = (X-21)/1

0.51 = X-21

Add 21 to each side:

0.51+21 = X-21+21

21.51 = X

4 0
3 years ago
A cylindrical grain bin has a radius of 9 feet and a height of 30 feet. How many cubic feet of grain can the bin hold?
GarryVolchara [31]

Answer:1696.46

Step-by-step explanation:

V = π r 2 h

8 0
3 years ago
Other questions:
  • What is the equation of a parabola that has a vertex at ( 0,4 ) and passes through points ( 2,0 )?
    8·1 answer
  • A grown man will burn roughly 120 calories for each mile run how many calories will he burned when a grown man runs 6.5 miles
    11·2 answers
  • Edith purchased a stove for $950. It depreciates about 0.7% each year. What is the value of the stove after six years?
    9·2 answers
  • The orbital period, P, of a planet and the planet’s distance from the sun, a, in astronomical units is related by the formula P
    14·1 answer
  • Anybody know ??????
    12·1 answer
  • CAN SOMEONE HELP PLS
    5·2 answers
  • If x+3y upon 5x+4y= 1/3 find the ratio of x:y ANSWER FASTTT
    15·2 answers
  • If 5x + 2 = 17, then 12x =____?
    5·2 answers
  • For the function g(x)=2x−8/ 6x+6, evaluate g(2)
    13·1 answer
  • 13, 69, 89, 25, 55, 20, 99, 75, 42, 18, 66, 88, 89, 79, 75, 65, 25, 99, 66, 78. Order from least to greatest
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!