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zubka84 [21]
3 years ago
13

PPlease helpppppppppppp

Mathematics
2 answers:
Naddik [55]3 years ago
5 0

Answer:

13.4

Step-by-step explanation:

dybincka [34]3 years ago
4 0

Answer:

121/9

Step-by-step explanation:

= (-3\frac{2}{3} )^2

= (-\frac{11}{3} )^2

= \frac{121}{9}

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Solve the system of equations y = 40x2 and y = 19x + 3 algebraically.
ikadub [295]

We have been given a system of nonlinear equations.

\\y=40x^{2},y=19x+3

In order to solve this system we can first equate the two equations in order to get a quadratic in x.

\\40x^{2}=19x+3

Our next step is to bring all the terms on one side.

\\40x^{2}-19x-3=0

Now we have to solve this equation. We can solve it by factoring using the splitting middle term method.

\\40x^{2}-24x+5x-3=0

\\8x(5x-3)+(5x-3)=0

\\(8x+1)(5x-3)=0

Upon setting each of these factors equal to zero using zero product property we get

\\8x+1=0 \text{ or } 5x-3 = 0

Upon solving both these equations we get

\\x=-\frac{1}{8} \text{ or } x=\frac{3}{5}

Now we can substitute these values of x in the equation

y=19x+3

We get

\text{For }x=- \frac{1}{8} \Rightarrow y=19(- \frac{1}{8})+3= \frac{5}{8}\\

\text{For }x= \frac{3}{5}\Rightarrow y=19( \frac{3}{5})+3= \frac{72}{5}\\

Therefore, our final set of solutions are

(x,y)=(- \frac{1}{8},\frac{5}{8}) \text{ and } ( \frac{3}{5}, \frac{72}{5})


6 0
3 years ago
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How many trapezoids can you find in this grid of 12-points
netineya [11]

Answer:

Can I see the graph?

Step-by-step explanation:

6 0
3 years ago
How many pounds are represented by 764.6 mg? [1 pound = 454 g]?
zimovet [89]
764.6 mg = 0.7646 g

1 pound = 454 g
X Pound = 0.7646 g

X = 0.7646 / 454
X = 1.68 * 10^-3
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3 years ago
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Read the excerpt from Tommy's speech to his school administration about why physical education should be
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It is essential for students (d)
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4 years ago
Which of the following are monomials? Check all that apply.
nirvana33 [79]

Answer:

The answer to this is A and B.

Step-by-step explanation:

A monomial is an expression with one term only such as 3xy, 5x and so on. A binomial is an expression with two terms such as 5x + 3y. A polynomial is an expression with more than 3 terms such as 5x +3y - 6a.

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3 years ago
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