Hey there!
- Answer :
- x = -5 or x = -2 ✅
<em><u>QUADRATIC EQUATION:</u></em>
ax² + bx + c = 0 where a ≠ 0
The sign of the discrimant (b² - 4ac) determines the number of real-number solutions :
- If the discrimant is positive, the equation has <em><u>two real-number solutions</u></em>.
- If the discrimant is equal to zero, the equation <em><u>has one real-number solution</u></em>.
- If the discriminant is negative, the equation has <em><u>no real-number solution</u></em>.
The solutions of the equation, also called roots, can be obtained with the QUADRATIC FORMULA :
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▪️ x² + 7x + 10 = 0
(1) Substitute the letters in the general quadratic equation with their values in the given expression:
(2) <em>Determine the sign of the discriminant: </em>
The discrimant is positive ; the equation has two real-number solutions.
(3) <em>Determine the roots of the equation :</em>
Therefore, x = -5 or x = -2
▪️ Learn more about quadratic equations :
↣brainly.com/question/3843409
Answer:
Slope = -7 and intercept = 2
Step-by-step explanation:
: y = -7x+2
Comparing with y = mx + c
Where m = slope and c = intercept
m = -7 and c = 2
If we expand -7x ( 5 - x ) ..
.....we have to multiply the outside term with the inside values
there fore if we multiply 7 and 5 the answer is 35....... and the negative symbol will make it negative so it will be -35 and the x in the outside value will be multiplied to it so it will become -35x.....
then if we multiply -7x and -x ...... - sign and the other - sign when multiplied will make + sign
and when x and x are multiplied from both sides it comes as x^2 ( this means x squared )........when 7 is multiplied the final answer will be 7x^2.......
so we will have -35x + 7x^2
SO when this will be arranged in descending order it means from biggest to smallest....so this will be 7x^2 - 35 x
HOPE IT HELPED !!!
Answer:
112.5 miles
Step-by-step explanation:
375/5=75
75*6.5=487.5
487.5-375=112.5
The question is basically asking for the difference between how far ryan lives from the store and how far abby lives from the store.
therefore, to solve the problem, we can just do: distance ryan lives from the store minus distance abby lives from the store.
since ryan is 3.76 kilometers from the store and abby is 1.67 kilometers from the store, the answer is:
3.76 - 1.67 = 2.09 kilometers.