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elena55 [62]
3 years ago
11

A number is four times larger than the square of half the number ​

Mathematics
1 answer:
Mashcka [7]3 years ago
5 0

Answer:

Step-by-step explanation:

Let the number = x

Read carefully the sentence part beginning with 4 times larger

4* something

4 times larger than the square of 1/2 the number

4 * (x/2)^2

4*(x/2)^2 = x

4*x^2/4 = x

x^2 = x  be very careful how you handle this. It looks like 0 might be an answer, but it isn't. If you divide x on both sides and you allow 0, you will get 0 / 0 and that is undefined. You must exclude that possibility with some sort of statement.

x cannot be 0.

x^2/x= x/x

x = 1

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The "following" are not provided, but you can simplify it.

5X+7

Use this if it is in any of the  "following"
3 0
4 years ago
If you multiplied 637 by 912, what would be the units digit of the answer
Aleonysh [2.5K]

Answer:

4

Step-by-step explanation:

The units digit will be 4, because 7*2 = 14, (units digit is 4)

3 0
3 years ago
A herd of dinosaurs made paintings in the sand with their claws. Each baby dinosaur made 151515 paintings and each adult dinosau
dsp73

There were 12 baby dinosaurs and 4 adult dinosaurs making the painting.

<h3>Equation</h3>

An equation is an expression used to show the relationship between two or more numbers and variables.

Let x represent the number of baby dinosaurs and y represent the number of adult dinosaurs.

Since there was 208 paintings, hence:

  • 15x + 7y = 208   (1)

Also:

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From equation 1 and 2:

x = 12, y = 4

There were 12 baby dinosaurs and 4 adult dinosaurs making the painting.

Find out more on Equation at: brainly.com/question/13763238

5 0
2 years ago
Four different paints are advertised as having the same drying time. To check the manufacturer's claims, five samples were teste
iogann1982 [59]

Answer:

Explained below.

Step-by-step explanation:

The data provided is for the dying time of four different types of paint.

One-way ANOVA can be used to determine whether all the four paints have the same drying time.

Use Excel to perform the one-way ANOVA.

Go to Data → Data Analysis → Anova: Single Factor

A dialog box will open.

Select the data.

Select "Grouping" as Columns.

Press OK.

The output is attached below.

The required values are as follows:

(1)

Sum of Squares of Treatment (Between Subjects):

SST = 330

(2)

Sum of Squares of Error (Within Subjects):

SSE = 692

(3)

Mean Squares Treatment (Between Subjects):

MST = 110

(4)

Mean Squares Error (Within Subjects):

MSE = 43.25

6 0
4 years ago
9. Mary works in a factory that produces 1,000 telephones each day. When 30 telephones were sampled, it was found that 9 were de
ExtremeBDS [4]
Determine the ratio of defective telephones
ratio = 9/30
ratio = 3/10
3 of 10 telephones are defective

Determine the number of defective telephones each day
def telephone = ratio of defective × total production
def telephone = 3/10 × 1000
def telephone = 300

There are 300 defective telephones each day
4 0
3 years ago
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