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Sonja [21]
3 years ago
13

If x= -2, y = 4, find the value of 2x2 - 3xy + 5​

Mathematics
2 answers:
Dennis_Churaev [7]3 years ago
7 0

Answer:

I am assuming when you say 2x2 you mean 2x squared so using that, your answer should be -35 if Im correct.

Step-by-step explanation:

Brainliest?!?

Galina-37 [17]3 years ago
5 0

Answer:

21

Step-by-step explanation:

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3 years ago
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Indicate which sets are disjoint to the given set
marysya [2.9K]

If the intersection of two sets is a null set or an empty set, then two sets A and B are disjoint sets. The intersection of a set is therefore empty.

<h3>Explain about the disjoined set?</h3>

Disjoint sets are a pair of sets that do not share any elements. For instance, the sets A=2,3 and B=4,5 are not connected sets. However, set C=3,4,5 and set C=3,6,7 are not disjoint since 3 is a common element in both sets C and D.

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8 0
1 year ago
Work out 1 3/4 x 4 1/6
sattari [20]

Convert mixed number to improper fraction:

1\dfrac{3}{4}=\dfrac{1\cdot4+3}{4}=\dfrac{4+3}{4}=\dfrac{7}{4}\\\\4\dfrac{1}{6}=\dfrac{4\cdot6+1}{6}=\dfrac{24+1}{6}=\dfrac{25}{6}\\\\1\dfrac{3}{4}\times4\dfrac{1}{6}=\dfrac{7}{4}\times\dfrac{25}{6}=\dfrac{7\times25}{4\times6}=\dfrac{175}{24}=\dfrac{168+7}{24}=7\dfrac{7}{24}

8 0
4 years ago
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Angelina_Jolie [31]
Ok, I'm not giving you the answer. Instead, I'm going to give you the way to solve it. Then, you can do it yourself, message it to me, and I will check it. 
Do .11 x 25. Remember to add the decimal back in. 
4 0
3 years ago
Read 2 more answers
that batch calls for 5 cups of flour and 4 teaspoons of vanilla if i use 6 teaspoons of vanilla how many cups will i need
Eva8 [605]
5 cups & 4 teaspoons
? cups & 6 teaspoons


2.5 cups is half of 5
2 is half of 4

you increased the recipe by 1/2

so for 6 teaspoons you will need 7.5 or 7 1/2 cups of flour b/c 5 + 2.5 = 7.5

ANSWER: 7 1/2
4 0
3 years ago
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