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4 years ago

Select the two binomials that are factors of this trinomial.

Mathematics

1 answer:

BartSMP [9]4 years ago

4 0

Answer:

options A and D

Step-by-step explanation:

Given x² - 3x - 28

By factor the given function:

x² - 3x - 28 = (x - 7) (x + 4)

So, comparing the results with the given options.

The answer is options A and D

A. X-7

D. X+4

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Rewrite the following in ascending order. 9/25, 2/5, 14/-75, -19/10, 8/15

madam [21]

Step-by-step explanation:

Given numbers are 9/25 ,2/5, 14/-75, -19/10, 8/15

The denominators = 25 , 5, 75, 10, 15

LCM of the denominators = 150

9/25 = (9/25)×(6/6) = 54/150

2/5 = (2/5)×(30/30) = 60/150

14/-75 =(-14/75)×(2/2) = -28/150

-19/10 = (-19/10)×(15/15) = -285/150

8/15 = (8/15)×(10/10) = 80/150

Ascending order of the numbers

= -285/150, -28/150, 54/150, 60/150, 80/150

-19/10, 14/-75, 9/25, 2/5, 8/15

3 0

3 years ago

Find the value of the expression (3⁢x-12)+12⁢(x⁢y-10) for x=4 and y=6 .

r-ruslan [8.4K]

3(4) + 12 + 12[4(6) - 10]
12 + 12 + 12(24 - 10)
12 + 12 + 288 - 120
192

5 0

4 years ago

1. Direct variation

kenny6666 [7]

(1) y = 7x , (2) y = 11x , (3) y = 9x , (4) y = 28x

given y varies directly as x then y = kx ( k is the constant of variation )

(1) find k using the given conditions k = $\frac{y}{x}$ = $\frac{63}{9}$ = 7

equation is y = 7x

(2) k = $\frac{121}{11}$ = 11

equation is y = 11x

(3) k = $\frac{36}{4}$ = 9

equation is y = 9x

(4) k = $\frac{224}{8}$ = 28

equation is y = 28x

3 0

3 years ago

10 decreased by twice a

Simora [160]

Answer:

in simplest terms 10 decreased by twice A can be written as

10-2a

Step-by-step explanation:

5 0

3 years ago

8. A store owner paid $15 for a book. She marked up the price of the book by 40% to determine its selling price. What is the sel

alexdok [17]

Answer:

Step-by-step explanation:

5 0

3 years ago