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inna [77]
3 years ago
5

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

Mathematics
2 answers:
stiv31 [10]3 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:

jeka943 years ago
5 0

Answer:

(x-1) (5x+7)

Step-by-step explanation:

I factored using the berry method

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In the line y - 3 = -2 (x+5), which of the following are true?
blsea [12.9K]

Answer:

Options a, d and e

Step-by-step explanation:

We check the validity of each of the options.

Kindly note that we can express the equation fully and we have;

y-3 = -2x-10

y = -2x -10 + 3

y = -2x -7

So let’s now evaluate the options.

(a) Insert the value of x at this point, if it gives the value of y, then it’s on the line

the value of x to insert is -5 here.

Thus ; y = -2(-5)-7 = 10-7 = 3

since y is 3, then it is on the line

(b) same as a

insert x = 5

y = -2x-7

y = -2(5) -7

y = -10-7 = -17

This is definitely not on the line as the value of y gotten does not correlate with what was given

c. To get this , compare with the standard form of

y = mx + c

where m is slope

Here our m is -2 , so this is definitely wrong

d) From above , we can see that this is correct

e) compare this with y = mx + c

c is our intercept and this is equal to -7 which makes this option also correct

6 0
4 years ago
Manny plans to save 1/12 of his salary each week. If his Weekly salary is $372, find the amount he will save each week.
xxMikexx [17]

Answer:

$31

Step-by-step explanation:

We know that Manny makes $372 in a week. If he needs to save 1/12th of his salary a week, we would need to multiply 372 by \frac{1}{12}.

x=372(\frac{1}{12})

x=31

This means that Manny would end up saving $31 each week.

6 0
4 years ago
Which of the following are in correct order from greatest to least?
Marat540 [252]

Given:

Four series of angles are given.

To Find:

Identify the series with the correct order from greatest to least.

Solution:

the correct order from greatest to least is what is shown in the fourth option, i.e.,

330

Calculation:

Now, we use the fact that

\pi =180

to calculate the values of

\frac{\pi}{2}, \frac{2\pi}{3}, \frac{7\pi}{6}, \frac{5\pi}{3}

So, we have

\frac{\pi}{2} = 90\\\\\frac{2\pi} {3}=\frac{(2)(180)}{3} = 120\\\\ \frac{7\pi} {6}=\frac{(7)(180)}{6} = 210\\\\ \frac{5\pi} {3}=\frac{(5)(180)}{3} = 300\\\\

Looking at the above values, we see that the correct order from greatest to least is what is shown in the fourth option, i.e.,

330

5 0
3 years ago
Read 2 more answers
What is the sales tax on a jacket priced at $350 if the sales tax rate is 7%
gregori [183]
350 x .07 = 24.50

Your sale tax for a jacket would be $24.50.
4 0
3 years ago
Plz some one look at this
aleksklad [387]
5 : - 1/6 = 0.167     out of 10 = 1.67  out of 100 = 16.7

even number  0.33 out of 10:-  3.3 out of 100:-  33

a prime number  0.5 out of 10: 5 and out of 100:- 50

multipl of 3:- 0/33  out of 10:- 3.3 and out of 100: 33
4 0
4 years ago
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