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Ket [755]
3 years ago
7

Which expression is equivalent to (7x^2-4)(5x+7)

Mathematics
2 answers:
zepelin [54]3 years ago
8 0

Expand to get 35x^3+49x^2-20x-28


Nadusha1986 [10]3 years ago
5 0

Answer:

3x(3x + 2)

Step-by-step explanation:


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Two consecutive integers are such that 7 times the biggest and then added to the smallest equals
Arturiano [62]

Answer:

61,62

Step-by-step explanation:

Let the smallest  number be x

Hence, the biggest number = x+1 [as it consecutive]

Hence,

7(x+1)+x=495

7x+7+x+495

8x=495-7

8x=488

x=61

Hence, smaller number=61, bigger number=62

7 0
3 years ago
hey I have a doubt isn't for this question the ans supposed to be 36 but the option is not there so could you plzz help me ​
White raven [17]

Answer:

Its actually 31

Step-by-step explanation:

Try drawing it and counting the matches

6 0
3 years ago
¿porque algunos objetos flotan y otros se hunden en el agua​
Darina [25.2K]

Answer:

due to the pull of gravity and depending on particals that the object is made of

8 0
3 years ago
Plz help area is 54in
BabaBlast [244]

Answer:

equation: a/.5b=h

h=9

Step-by-step explanation:

a=1/2bh

divide both sides by 1/2b to get h alone

a/.5b=h

a/.5b=h

54/0.5(12)=h

54/6=h

9=h

3 0
3 years ago
How do u work out what fraction is equal to 1/8
I am Lyosha [343]

If the number on the bottom of the fraction is 8 times the size
of the number on top, then the fraction is equal to  1/8 .

Examples:

100 / 800

20 / 160

8 / 64

7 0
3 years ago
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