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
irinina [24]
3 years ago
11

Subtraction: 57 - 28 = ? Show how to solve it step by step.

Mathematics
1 answer:
OverLord2011 [107]3 years ago
8 0

Answer:

29

Step-by-step explanation:

50 - 20 = 30

7 - 8 = -1

30 - 1 = 29

You might be interested in
X y
Darina [25.2K]

Answer:

Part 1) The rate of change is \frac{17}{15}

Part 2) The initial value is 68

Part 3) The function rule to the linear model is y=\frac{17}{15}x+68

Step-by-step explanation:

we know that

The linear equation in slope intercept form is equal to

y=mx+b

where

m is the slope or unit rate

b is the y-intercept or initial value

step 1

Find the slope

take two points from the table

(0,68) and (15,85)

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

substitute the values

m=\frac{85-68}{15-0}

m=\frac{17}{15}

In a linear function , the slope is the same that the rate of change

therefore

The rate of change is \frac{17}{15}

step 2

Find the y-intercept

we know that

The y-intercept is the value of y when the value of x is equal to zero

Looking at the table

For x=0, y=68

therefore

The y-intercept is

b=68

The y-intercept is also called the initial value

therefore

The initial value is 68

step 3

Determine the function rule to the linear model

y=mx+b

we have

m=\frac{17}{15}

b=68

substitute

y=\frac{17}{15}x+68

8 0
3 years ago
Alexander placed four straws on his table.
Diano4ka-milaya [45]

Answer:D (straws 2 and 4)

Step-by-step explanation:

The answer is D becuase those two straws intersect at point and create 90° angle

6 0
3 years ago
I have to put spaces so delete the spaces ok
loris [4]

Answer:

wdym???

Step-by-step explanation:

You have an email with  at white buffalos.net??? I thought that was only my school.

3 0
3 years ago
Using Pythagorean Theorem what is the square root of the third side ?
IrinaVladis [17]
Pythagorean theorm is a^2+b^2=c^2
so 10^2+ 24^2 =c^2
100+576=c^2
676=c^2
26=c
5 0
3 years ago
Triangle CAT is transformed to produce triangle DOG.
PilotLPTM [1.2K]

Using transformations and congruency concepts, it is found that with these following transformations, the triangles will be congruent.

  • A reflection, then a translation.
  • A rotation, then a reflection.

--------------------------

  • Two triangles are congruent if they have the <u>same lengths</u> of the sides and the <u>same angles.</u>
  • In a reflection, there is a rule that changes the <u>coordinates (x,y)</u>, but does <u>not </u>change <u>the lengths</u> of the sides of the triangles, thus they will still be congruent.
  • A <u>reflection is also a special case of rotation</u>, thus, in a rotation, the triangles are also congruent.
  • A translation is also similar to a reflection, using rules to shift the triangle up, down, left or right according to it's coordinates, not changing the sides or angles, thus congruent.
  • In a dilation, the <u>lengths of the sides are changed</u>, thus, the triangles will not be congruent.

--------------------------

Thus, from the bullet points above, the correct options are:

  • A reflection, then a translation.
  • A rotation, then a reflection.

A similar problem is given at brainly.com/question/24267298

3 0
3 years ago
Other questions:
  • I've been stuck on this question for a while now, I need help!
    6·1 answer
  • Which quantity is larger? A) 100500 B) 1000300 C) They are equal. D) Insufficient information.
    11·1 answer
  • A triangle on a coordinate plane is translated according to the rule T-8,4(x,y). Which is another way to write this rule
    5·2 answers
  • Help me -2 (8 - e) = 2 - e​
    6·1 answer
  • I'm doing a practice, and I'm really confused by this question. Help would really be appreciated!!! **100 PTS!**
    8·2 answers
  • Please help
    14·1 answer
  • Please help asap no wrong answers pls
    11·2 answers
  • Translate the sentence into an equation or formula.
    8·1 answer
  • 2 1/2- 1 2/5 this question I am stuck on some one please help :)
    13·1 answer
  • Convert 4.06 to a percent. please help, i need this for school and i have to get an 80 on this assignment.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!