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mojhsa [17]
3 years ago
6

Pretty please can someone help

Mathematics
1 answer:
Alenkasestr [34]3 years ago
3 0

Answer:

Step-by-step explanation:

2x^{2}  + x - 4 = 0\\

divide by 2 throughout

x^{2}  + \frac{x}{2}  = \frac{4}{2}

x^{2} +2 * \frac{x}{4} +( \frac{1}{4}) ^{2}  = 2 + ( \frac{1}{4}) ^{2}\\

(x+\frac{1}{4} ^{2} ) = 2 + (\frac{1}{4} )^{2} \\

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Which expression is equivalent to 5(2+7)?
frosja888 [35]

Answer:

I can help you but first I need the rest of the answers to find out what's it equivalent to.

4 0
3 years ago
B) Make b the subject of the formula a = 4 - 3b​
Ira Lisetskai [31]
A=4-3b
subtract 4 from both sides
a-4=-3b
divide by -3 for both sides
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5 0
3 years ago
Read 2 more answers
The sum of two numbers is 30. The difference of twice the larger number and three times the smaller number is 5. What is the pos
natali 33 [55]
Let’s give these two numbers variables
Let ‘a’ be the larger number
Let ‘b’ be the smaller number

Now from the question we know:
a + b = 30 or a = 30 - b
2a - 3b = 5

Now, let’s plug the first equation into the second to find ‘b’:

2(30 - b) - 3b = 5
60 - 2b - 3b = 5
60 - 5b = 5
55 = 5b
b = 11

Now we solve for ‘a’:
a = 30 - b
a = 30 - 11
a = 19

Now the question asks for the positive difference between the two numbers, so:
a - b = ?
19 - 11 = 8

Hope this helps!


5 0
3 years ago
These triangles
Naily [24]

Answer:

Is this a complete question?

5 0
3 years ago
25
kkurt [141]

Answer:

there both the same number its just that one is on top and the other is on bottom

6 0
3 years ago
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