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3 years ago

Which expression is not equal to 28?

Mathematics

2 answers:

Dahasolnce [82]3 years ago

7 0

Which expression is NOT equal to 28? A. 1,288 ÷ 46 B. 1,820 ÷ 65 C. 1,456 ÷ 52 D. 1,107 ÷ 41

D is correct.

Brums [2.3K]3 years ago

6 0

Answer: 1,107 divided by 41

Step-by-step explanation:

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HELP!!!!!!!!!!!!!!!!!!!!! Do all real numbers have a decimal expansion? Select each correct answer. Some numbers, such as 1 10

ankoles [38]

Answer:

1. Some numbers, such as $\frac{1}{10}$ , have a decimal expansion that terminates.

2. All real numbers have a decimal expansion.

5. Some numbers, such as $\frac{1}{18}$ , have a decimal expansion that repeats but does not terminate.

Step-by-step explanation:

According to the options, we have,

1. Some numbers, such as $\frac{1}{10}$ , have a decimal expansion that terminates.

It is correct as the decimal expansion of $\frac{1}{10}$ is 0.1, which terminates.

2. All real numbers have a decimal expansion.

This is also correct as both rational and irrational numbers can be written in decimal form.

3. Some numbers, such as $\sqrt{13}$ do not have a decimal expansion

This is not correct as $\sqrt{13}=3.605551275$ i.e. it has a decimal expansion.

4. Only some real numbers have a decimal expansion.

It is not correct as 2 is correct.

5. Some numbers, such as $\frac{1}{18}$ , have a decimal expansion that repeats but does not terminate.

It is correct as $\frac{1}{18}=0.0555555..$ , which is non-terminating decimal expansion.

So, the correct options are,

1. Some numbers, such as $\frac{1}{10}$ , have a decimal expansion that terminates.

2. All real numbers have a decimal expansion.

5. Some numbers, such as $\frac{1}{18}$ , have a decimal expansion that repeats but does not terminate.

6 0

4 years ago

Function help please

Korvikt [17]

Answer:

The first table represents a function.

Step-by-step explanation:

For it to be a function, there needs to be 1 unique y value of 1 unique x value.

Looking at 2nd table, we see x value of -5 is mapped to 2 different y values of -5 and 5. So this is not a function.
Looking at 3rd table, we see x value of -2 is mapped to 2 different y values of 2 and 4. So this is not a function.
Looking at 4th table, we see x value of -4 is mapped to 2 different y values of 2 and 0. So this is not a function as well.

Looking at table 1, there are no duplicate x values and each of the 4 x values map to different values. So the first table represents a function.

4 0

3 years ago

Two cylinders are shown below. Which cylinder has the greater volume? Use 3.14 for π. Round to the nearest hundredth. Use the dr

Lemur [1.5K]

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.

Please have a look at the attached photo.

My answer:

To find which cylinder has the greater volume, we need to find out the volume of each one.

As we all know that the formula used to determine the volume of a cylinder is:

V = The base area*the height

<=> V = π $r^{2}$ h (cubic units)

For example, in my attached photo, we will use this formula to find the volume of each one.

1. Cylinder A:

The base area = π $r^{2}$ = π $3.5^{2}$ = 38.46 square in

The height = 8.5 in

=> the volume of Cylinder A

= The base area*the height

= 38.46*8.5

= 326.91 cubic in

2. Cylinder B:

The base area = π $r^{2}$ = π $2.7^{2}$ = 22.89 square in

The height = 11 in

=> the volume of Cylinder A

= The base area*the height

= 22.89*11

= 251.79 cubic in

Hence, Cylinder B has the greater volume

6 0

4 years ago

A restaurant sells sandwiches and will deliver for an additional cost. To have three sandwiches delivered, it costs $20. To have

zimovet [89]

Answer:

12 sandwiches

Step-by-step explanation:

If 3 sandwiches cost $20

Then x sandwiches cost $80

3----20

x----80

20x=3 x 80

20x=240

x=240/20

x=12 sandwiches

7 0

3 years ago

What is 100/298 written in its simplest form

zloy xaker [14]

100/298 = .3355704698 but the answer in a fraction in simplest form is 50/149

4 0

3 years ago