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anzhelika [568]
3 years ago
13

Factor the trinomial below.

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
5 0
(x-7)(x+5)

Proof:
-7+5=-2
-7+5=-35

Foiling:
x^2+5x-7x-35
This simplifies to
x^2-2x-35
You might be interested in
Which is not in proportion a) 2 : 4 = 3 : 6 b) 1 : 3 = 3 : 9 c) 4 : 6 = 3 : 2 d) 5 : 1 = 10 : 2
Gnoma [55]

Answer:

C

Step-by-step explanation:

(a)

2 : 4 ( divide both values by 2)

= 1 : 2

3 : 6 ( divide both values by 3 )

= 1 : 2

Thus 2 : 4 = 3 : 6

(b)

3 : 9 ( divide both values by 3 )

= 1 : 3

Thus 1 : 3 = 3 : 9

(c)

4 : 6 ( divide both values by 2 )

= 2 : 3 ≠ 3 : 2

(d)

10 : 2 ( divide both values by 2 )

= 5 : 1

Thus 5 : 1 = 10 : 2

3 0
3 years ago
Which statement is true? 5 6 8 27 을 ll < - 3 8 4 8 6 6
Neko [114]
Fractions

We are going to be checking each statement in order to find which of them are correct:

<h2>5/6 < 6/8 - 5/6 is smaller than 6/8</h2>

We can see that in the drawing 3/8 is smaller than 5/6. Then this statement is false.

<h2>4/6 < 5/8 - 4/6 is smaller than 5/8</h2>

We can see that in the drawing 5/8 is smaller than 4/6. Then this statement is false.

<h2>2/6 = 3/8 - 2/6 is equal to 3/8</h2>

We can see that in the drawing 3/8 is bigger than 2/6. Then this statement is false.

<h2>3/6 = 4/8 - 3/6 is equal to 4/8</h2>

We can see that in the drawing 4/8 is equal to 3/6. Then this statement is true.

<h2>Answer: 3/6 = 4/8</h2>

6 0
2 years ago
What 2 numbers add up to 4 and equal 24 when multiplied
alina1380 [7]
The correct answer is 6 because if u do 6 x 4(24) then to check your answer do 24 divided by 4 it will be 6
8 0
3 years ago
Read 2 more answers
During a test period, an experimental group of 10 vehicles using an 85 percent ethanol-gasoline mixture showed mean CO2 emission
Aleksandr-060686 [28]

Answer:

Probably unequal  ( B )

Step-by-step explanation:

<u>experimental group = 10</u>

using 85% ethanol gasoline

mean = 240 pounds per 100 miles

standard deviation = 20 pounds

<u>control group = 14 vehicles </u>

using regular gasoline

mean = 252 pounds per 100 miles

standard deviation = 15 pounds

comparing  the sample variance of each group shows that they are probably unequal using the equation below

Variance for a sample set of data = ∑ ( x - X ) ^2 / n - 1

where n = number of events

X = mean value

x = value of events

8 0
3 years ago
The ratio of two numbers is 7 to 5 the sum of the numbers is 24 what are the numbers
statuscvo [17]
Answer:

The numbers are 14 and 10

Step-by-step explanation:

Let the numbers be

x:y=7:5

This implies that,

\frac{x}{y}=\frac{7}{5}

x=\frac{7}{5}y

The sum of the numbers is 24.

x+y=24...(2)

Put equation (1) in (2)

\frac{7}{5}y+y=24

\frac{12}{5}y=24

y=24\times \frac{5}{12}

y=10

x+10=24

x=14
5 0
4 years ago
Read 2 more answers
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