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
Marysya12 [62]
2 years ago
7

1) What shape is this

Mathematics
1 answer:
olasank [31]2 years ago
3 0

Answer:

I think they mean this thing

)

You might be interested in
The sum of the dibits of a two digit number is 15. The number obtained by interchanging its digits exceeds the given number by 9
QveST [7]

Answer:

  78

Step-by-step explanation:

Interchanging the digits of a 2-digit number changes the value by a multiple of 9. The multiple is the difference between the digits of the number.

So, we have two digits that add to 15, and have a difference of 9/9 = 1. Since you're familiar with your addition facts, you know that the two digits are 7 and 8. Since the number we're looking for is the smallest of the numbers you can make with those digits, ...

  the original number is 78.

_____

More formally, let t and o represent the tens and ones digits of the original number.

  t + o = 15 . . . . . . the sum of digits is 15

  (10o +t) - (10t +o) = 9 . . . . swapping digits increases the value by 9

The latter equation simplifies to ...

  9o -9t = 9 . . . . collect terms

  o - t = 1 . . . . . . divide by 9 . . . (note the difference of digits is 9/9=1)

Adding this to the first equation gives ...

  (t +o) +(o -t) = (15) +(1)

  2o = 16

  o = 8

  t = o -1 = 7

The tens digit is 7 and the ones digit is 8: 78.

3 0
2 years ago
A rectangle has an area of 20 square feet a similar rectangle has an area of 180 square feet what is ratio of the areas of these
Evgen [1.6K]

Answer:

The ratio of the areas of the smaller rectangle to the larger rectangle is  \frac{1}{9}

Step-by-step explanation:

we know that

if two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z-----> the scale factor

x-----> the area of the smaller rectangle

y----> the area of the larger rectangle

so

z^{2}=\frac{x}{y}

substitute the values

z^{2}=\frac{20}{180}

simplify

z^{2}=\frac{1}{9}

That means, the area of the larger rectangle is 9 times the area of the smaller rectangle

z=\frac{1}{3} ------> the scale factor

That means, the dimensions of the larger rectangle is 3 times the dimensions of the smaller rectangle

7 0
2 years ago
John measured the diameter of four steel rods. Compare his measurements, listed below. Which one is the largest?
sveta [45]
The largest steel rod is D. 0.25 inches.
7 0
3 years ago
Read 2 more answers
♥Please answer soon!♥Find the lateral area of the cone. Use 3.14 pi and round to the nearest whole unit
Tom [10]
I think it’s A, im not sure.
4 0
3 years ago
Kindly answer the question attached ^-^<br><br>​
4vir4ik [10]

Answer:

=11600/3

=3866.66kg

Step-by-step explanation:

dividing the mass with bricks with the three times of the lorry

8 0
2 years ago
Read 2 more answers
Other questions:
  • A right circular cylinder has a radius of 6ft and a length of 18ft what is the volume of the cylinder?
    8·1 answer
  • Show your work I need this asap
    11·2 answers
  • The following are the ages (years) of 5 people in a room: 25, 18, 17, 13, 24 A person enters the room. The mean age of the 6 peo
    12·1 answer
  • I need someone to help me solve this problem <br><br><br> 7/b+5=10/5
    9·2 answers
  • a recipe calls for a total of 3 2/3 cups of flour and sugar. if the recipe calls for 1/4 cup.of sugar, how much flour is needed?
    13·1 answer
  • If you take -3/10 of a number and add 1, you get 10. Let x represent the original number. A. Write an equation that represents t
    14·2 answers
  • (Photo) Please help me
    6·2 answers
  • What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? Explain your reasoning.
    10·2 answers
  • Evaluate the given​ third-order determinant.
    13·1 answer
  • Please help!!! Due at 11:30!!!!!!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!