3 years ago

The solution of 2x2 + x = 3 is shown below.

Mathematics

1 answer:

Yanka [14]3 years ago

9 0

Answer:

b. {(-1.5, 9.5), (1,7)}

Step-by-step explanation:

brainliest please? :)

You might be interested in

7x + 8y = 25 9x + 10y =35 elimination method please

djverab [1.8K]

$7x +8y = 25 ~~~....(i)\\\\9x +10y = 35~~~ ....(ii)\\\\\text{Multiply equation (ii) by}~ \dfrac 79 ~ \text{and do (ii) - (i):}\\\\\dfrac 79 (9x +10y) - (7x +8y) = \dfrac 79 (35) - 25\\\\\\\implies 7x +\dfrac{70y}9 - 7x -8y = \dfrac{245}9 -25\\\\\\\implies - \dfrac{2y}9 = \dfrac{20}9\\\\\\\implies -2y =20\\\\\implies y =-10\\\\\text{Substitute}~ y = -10~ \text{in equation (i):}\\\\\\7x +8(-10) = 25\\\\\implies 7x = 25 +80\\\\\implies 7x = 105 \\\\\implies x =15\\\\$

$\\\text{Hence}~ (x,y) = (15,-10)$

3 0

2 years ago

4(х +Зу) = 2(3х-y)<br> Solve for x

Fittoniya [83]

Answer:

Step-by-step explanation:

use distributive property:

4x+12y=6x-2y

2x=14y

x=7y

6 0

3 years ago

Answer the following questions, using the simulation: a. Determine the spring constant, k, of Spring 1, by using Hooke’s Law. Ta

Akimi4 [234]

At high noon, you can feel warm air coming from inland. During noon, especially in spring and summer, the radiation caused by the Sun warms the land surface more compared to the sea surface. This is because heat is directly applied on the land surface compared to the ocean.

4 0

3 years ago

Mr. Chambliss is planning to build a shed with a rectangular floor. In his original

deff fn [24]

C. By three feet 7x5=35 area 7x10=70 area 7+3=10

4 0

3 years ago

Which is a infinitely many solution ?

Cerrena [4.2K]

Answer

Sorry thats not out topic yet

Step-by-step explanation:

Sorry :c

8 0

2 years ago