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2 years ago

5x^2 + 2x - 7=0 thanks

Mathematics

2 answers:

stiv31 [10]2 years ago

5 0

Answer:

If you put the equation into go__ogle you will get an explanation on how to solve

Step-by-step explanation:

jeka942 years ago

5 0

Answer:

(x-1) (5x+7)

Step-by-step explanation:

I factored using the berry method

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Select the correct answer

Marta_Voda [28]

Answer:

Step-by-step explanation:

reason for is because when you add all the like terms you end up with c

6 0

2 years ago

There are 740 tickets purchased for a Major League Baseball game. The lower reserved tickets cost $9.50 and the upper reserve co

artcher [175]

375 lower reserved tickets were purchased and 365 upper reserved tickets were purchased

Step-by-step explanation:

Let x be the number lower reserved tickets

and

y be the number of upper reserved tickets

Then according to given statements

$x+y = 740\ \ \ \ Eqn\ 1\\9.50x+8y = 6482.50\ \ \ \ Eqn\ 2$

From equation 1:

$x = 740-y$

Putting in equation 2

$9.5(740-y)+8y = 6482.50\\7030-9.5y+8y = 6482.50\\7030-1.5y = 6482.50$

Subtracting 7030 from both sides

$7030-7030-1.5y = 6482.50-7030\\-1.5y=-547.5$

Dividing both sides by -1.5

$\frac{-1.5y}{-1.5} = \frac{-547.5}{-1.5}\\y = 365$

Putting y = 365 in equation 1

$x+365 = 740\\x = 740 - 365\\x = 375$

Hence,

375 lower reserved tickets were purchased and 365 upper reserved tickets were purchased

Keywords: Linear equations, Variables

Learn more about linear equations at:

#LearnwithBrainly

3 0

2 years ago

Which graph shows the line of best fit?

marysya [2.9K]

The 3rd one. It is the line that shows the average of most of the points since it’s more in the middle.

8 0

2 years ago

Hi, please help me out :)) thank you

r-ruslan [8.4K]

Answer:

d =32

Step-by-step explanation:

$\sqrt{7d+1}-4=11\\\\\mathrm{Add\:}4\mathrm{\:to\:both\:sides}\\\sqrt{7d+1}-4+4=11+4\\\\Simplify\\\sqrt{7d+1}=15\\\\\mathrm{Square\:both\:sides}:\quad 7d+1=225\\7d+1=225\\\\\mathrm{Solve\:}\:7d+1=225:\\\quad d=32$

4 0

2 years ago

Read 2 more answers

A vertex can represent

lawyer [7]

Vertex typically means a corner or a point where lines meet for an example i guess you can say squares have four corners, each is called a vertex. The plural form of vertex is vertices.

7 0

2 years ago

Read 2 more answers