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Nookie1986 [14]
3 years ago
5

Solve 5x^2=10x + 4 Help please I literally forgot what topic this is! Thanksssss !!!!

Mathematics
1 answer:
faltersainse [42]3 years ago
5 0
X = 4/15. The topic is solving for unknowns in an equation.
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Please help due soon please and thank you
Sunny_sXe [5.5K]
The answer is A, 75 degrees
add all like terms
2x+196
all triangles equal 180 degrees
2x+196=180
subtract the 196 from 180
2x= -16
divide
x= -8
plug into angle A
-8+83
A=75
4 0
2 years ago
Solve using the quadratic formula...<br> 9x2 - 4 + 7x
Evgen [1.6K]

Answer:

x=0.4, x=-1.2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Pls help with this question
Brrunno [24]
I wish i could help but i dont know the answer
7 0
3 years ago
If inflation from last year to this year was 2% and a pair of designer jeans sold for $75 last year, what would you expect to pa
tamaranim1 [39]

Answer:

$76.5

Step-by-step explanation:

We have been given that inflation from last year to this year was 2% and a pair of designer jeans sold for $75 last year. We are asked to find the price of pair of designer jeans this year.

An inflation of 2% will increase the price of pair of jeans by 2%, so price of pair of jeans this year would be $75 plus 2% of $75.

\text{Price of pair of jeans this year}=\$75+\$75\times\frac{2}{100}

\text{Price of pair of jeans this year}=\$75+\$75\times0.02

\text{Price of pair of jeans this year}=\$75+\$1.5

\text{Price of pair of jeans this year}=\$76.5

Therefore, the price of pair of jeans would be $76.5 this year.

7 0
2 years ago
What’s the answer to this question
laiz [17]

Answer:

B

Step-by-step explanation:

3 rectangles are 3 x 7 x 2 = 42

2 triangles are 2 x 1/2 x 2 x \sqrt{2^{2} - 1^{2}   } = 2\sqrt{3}

note that you have to use Pythagoras Theorem to solve for the height of the triangle

4 0
3 years ago
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