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3 years ago

2.Solve x squared - 4x by Factoring

Mathematics

1 answer:

777dan777 [17]3 years ago

8 0

Answer:

Step-by-step explanation:

hello:

x²-4x=0 means : x(x-4)=0

x=0 or x-4=0

conclusion : x=0 and x= 4 ...answer : B

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Item 20 A rectangular school banner has a length of 54 inches and a width of 36 inches. A sign is made that is similar to the sc

siniylev [52]

Answer:

The ratio of the area of the school banner to the area of the sign is <u>1944 cubic inches : 192.61 cubic inches.</u>

Step-by-step explanation:

Given:

A rectangular school banner has a length of 54 inches and a width of 36 inches. A sign is made that is similar to the school banner and has a length of 17 inches.

Now, to find the ratio of the area of the school banner to the area of the sign.

Dimensions of school banner :

Length = 54 inches.

Width = 36 inches.

Dimension of school sign:

Length = 17 inches.

So, to we find the width of sign by using cross multiplication method:

Let the width be $x.$

So, 54 is equivalent to 36.

Thus, 17 is equivalent to $x.$

$\frac{54}{36} =\frac{17}{x}$

By cross multiplying we get:

$54x=612$

Dividing both sides by 54 we get:

$x=11.33\ inches.$

Thus, the width of sign = 11.33 inches.

Now, to get the ratio of the area of the school banner to the area of the sign:

Area of the school banner : Area of the school sign.

= $54\times 36:17\times 11.33$

= $1944:192.61$

Therefore, the ratio of the area of the school banner to the area of the sign is 1944 cubic inches : 192.61 cubic inches.

6 0

3 years ago

Read 2 more answers

Nancy wants to buy 32 notebooks to give to her classmates, each notebook cost $1.75, how much will Nancy pay for 32 notebooks?

beks73 [17]

Answer:

Step-by-step explanation:

32n($1.75/n)=$56

Answer D

8 0

3 years ago

Read 2 more answers

1) There are 43 girls and 25 boys in the Valley View Middle School chorus. What is the ratio of girls to boys? 43 to 25, or 43:2

Arturiano [62]

Answer:

Oh gosh. Im not positive but I think it would be 43:25. Please dont get mad at me if its wrong!

Step-by-step explanation:

I am so sorry if its wrong but im not very sure :-(

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2 years ago

Disk storage channel. Binary data storage with a thin-film disk can be approximated by an input-dependent additive white Gaussia

schepotkina [342]

Answer:

Step-by-step explanation:

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3 years ago

Solve using long division.

Mkey [24]

Answer:

Quotient is $3x-5$ and remainder is 0.

Step-by-step explanation:

Given:

Dividend = $3x^2+7x-20$

Divisor = $x+4$

The long division is shown in the attachment.

Step 1: we need to divide $3x^2+7x-20$ with $x+4$ we first multiply $x+4$ with 3x we get the remainder as $-5x-20$

Quotient as 3x.

Step 2: Now the dividend is $-5x-20$ and divisor $x+4$ now we will multiply $x+4$ with -5 we get the remainder as 0 and Quotient as $3x-5$

Hence Quotient is $3x-5$ and remainder is 0.

6 0

3 years ago