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
jeyben [28]
3 years ago
11

Place parentheses in the expression 7^2+1-5x3 value is 135

Mathematics
1 answer:
SpyIntel [72]3 years ago
3 0

Answer:

Step-by-step explanation:

[{((7^2)+1)-5}*3]

=[{(49+1)-5}*3]

=[{50-5}*3]

=[45*3]

=135

You might be interested in
Estimate the area of Alberta in square miles. Show your reasoning
ella [17]

Answer:  About 278,250\ mi^2

Step-by-step explanation:

The missing figure is attached.

Notice in the first picture that Alberta has a complex shape.

You can calculate the area of a complex shape by decomposing it into polygons whose areas can be calculated easily.

Observe the second picture. Notice that it can be descompose into two polygons: A trapezoid and a rectangle.

The area of the trapezoid  can be calcualted with the formula:

A_t=\frac{h}{2}(B+b)

Where "h" is the height, "B" is the long base and "b" is short base.

And the area of the rectangle can be found with the formula:

 A_r=lw

Wkere "l" is the lenght and "w" is the width.

Then, the apprximate area of Alberta is:

A=\frac{h}{2}(B+b)+lw

Substituting vallues, you get:

A=(\frac{(410\ mi-180\ mi)}{2})(760\ mi+470\ mi)+(180\ mi)(760\ im)\\\\A=141,450\ mi^2+136,800\ mi^2\\\\A=278,250\ mi^2

Therefore, the area of of Alberta is about 278,250\ mi^2.

5 0
3 years ago
How are the perimeters of the preimage polygon and the image polygon related? Explain.
Romashka-Z-Leto [24]

The difference between Pre-Image and Image is given as follows:

  • Image is the shape AFTER a transformation is the picture of the transformation.
  • A transformation's preimage is the shape BEFORE the change.

<h3>How do you define relationships between Image and Preimage?</h3>

Usually, the difference between image and pre-image is the way or method of transformation.

<h3>What is transformation in math?</h3>

A transformation is a broad phrase covering four distinct methods of changing the shape and/or location of a point, line, or geometric figure.

The Pre-Image is the original shape of the item, and the Image during the transformation is the final shape and location of the object.

The types of transformation in math are;

  • translation
  • rotation
  • reflection, and
  • dilation.

Learn more about pre-image:
brainly.com/question/8405245
#SPJ1

7 0
2 years ago
What is 8 2/10 minus 4 1/3
Alik [6]

Answer:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

Exact Form:

58 /15

Decimal Form:

3.8 6

Mixed Number Form:

3  13 /15

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
If f(x) = 2x2 - x, find f(-3). <br> 15 <br> 21 <br> 39
elixir [45]
I believe its 21 sorry if im wrong
5 0
3 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST
Xelga [282]

Answer:

y = 6x

Step-by-step explanation:

For a vertical stretch, you simply multiply x by the factor you want to stretch it by. 3x • 2 is 6x.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Show two ways three people can share a 5 segment chewy fruit worm
    5·2 answers
  • Una tienda de sándwiches sirve 4 onzas de carne de queso en cada sandwich. Después de una hora de hacer sándwiches, el dueño de
    11·1 answer
  • What does x equal? 2x-8=2x+6+x
    15·2 answers
  • 19810 rounded to the nearest hundred
    14·2 answers
  • Can someone help me pls
    10·1 answer
  • 1) Give 5 examples of a difference of two perfect squares
    12·1 answer
  • Please help! asap! i have no idea what it is and it’s worth a lot of points on my test!
    6·1 answer
  • Please help me with this it’s due soon
    12·2 answers
  • What is the volume of this rectangular prism? Enter your answer in the box. ft? = 1 ft3​
    13·1 answer
  • Answer answer please answer
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!