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qaws [65]
3 years ago
12

What expression is the factorization of x^2+10x+21

Mathematics
2 answers:
a_sh-v [17]3 years ago
8 0

Answer:

a

Step-by-step explanation:

FOIL

f-first

o-outer

i-inner

l-last

fiasKO [112]3 years ago
7 0

Answer:

(x+3)(x+7)

Step-by-step explanation:

3+7 = 10 (the middle number)

3(7) = 21 (the third number)

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What is the area of the figure?
Zinaida [17]

Answer:

The area of the figure is 100

Step-by-step explanation:

5 0
3 years ago
The obriens are buying new windows for their house. The company installs the new windows for 2100 the total cost for buying the
Blizzard [7]

Answer:

14

Step-by-step explanation:

Given that:

Cost of purchase and installation = 5323.50

Cost per window = 230.25

Cost of installation = 2100

Hence,

Total purchase cost of windows alone :

5323.50 - 2100 = 3,223.50

Therefore, the number of windows purchased is :

(Total purchase cost of windows alone / price per window)

(3,223.50 / 230.25)

= 14

Hence, 14 windows was purchased

7 0
3 years ago
A gift box’s rectangular base has a perimeter of 92 centimeters. The length of the base is one more than twice the base’s width.
kozerog [31]
Assume that the length of the rectangle is "l" and that the width is "w".

We are given that: 
(1) The length is one more than twice the base. This means that:
l = 2w + 1 .......> equation I
(2) The perimeter is 92 cm. This means that:
92 = 2(l+w) ...........> equation II

Substitute with equation I in equation II to get the width as follows:
92 = 2(l+w)
92 = 2(2w+1+w)
92/2 = 3w + 1
46 = 3w + 1
3w = 46-1 = 45
w = 45/3
w = 15

Substitute with w in equation I to get the length as follows:
l = 2w + 1 
l = 2(15) + 1
l = 30 + 1 = 31

Based on the above calculations:
length of base = 31 cm
width of base = 15 cm
3 0
3 years ago
Cards are selected from a standard deck of 52, the results are recorded in the table. what is the empirical probability of not s
Cerrena [4.2K]

The table have the following results:

 

Hearts – 7

Diamonds – 4

Clubs – 8

Spades – 5

There is a total of 24

 

The question is asking for the probability of not selecting a heart.

So we need to add the probabilities of the diamonds, clubs, and spades since these suits are different from hearts.

So = 4 + 8 + 5 = 17

And we have a total of 24 cards

<span>Therefore the probability is 17/24. </span>

7 0
3 years ago
Write the equation of the line in slope intercept form .
12345 [234]

Answer:

Step-by-step explanation:

Points are (0,-2)(3,0)

Slope intercept form is y=2/3x-2

7 0
3 years ago
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