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Dafna1 [17]
3 years ago
11

Solve the equation using inverse operations. Check your solutions. In your final answer, include all of your work.

Mathematics
2 answers:
Bess [88]3 years ago
6 0
-2x^2=-15-5
-2x^2=-10
x^2=-5
X≠R i am not quite sure but...hope it helps :)
Katyanochek1 [597]3 years ago
4 0
The answer for this equation

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Find the slope of f(x) = -3x +7
Arisa [49]

Answer:

-3

Step-by-step explanation:

consider f(x)=y

y=-3x+7

compare with y=mx+c

slope m=-3

3 0
3 years ago
What is the greatest common monomial factor of the expression
Yuki888 [10]
You can factor out 36*5=180 and 27*4=108 and find that they have 36 as greatest common divisor. The x and y factors have xy as the best you can divide by. So the factor becomes 36xy

36xy(5y²+3) = 36x5y³ + 27x4y
8 0
3 years ago
In the diagram shown, chords AB and CD intersect at E. The measure of (AC) ̂ is 120°, the measure of (DB) ̂ is (2x)° and the mea
Mars2501 [29]

Answer:

The measure of angle < AED is 100\°

Step-by-step explanation:

we know that

The measure of the interior angle is the semi-sum of the arcs comprising it and its opposite.

so

m

substitute the values and solve for x

4x=\frac{1}{2}(120\°+2x)

8x=(120\°+2x)

8x-2x=120\°

6x=120\°

x=20\°

m

m -----> by supplementary angles

substitute value

80\°+m

m

4 0
3 years ago
For what real value of $v$ is $\frac{-21-\sqrt{301}}{10}$ a root of $5x^2+21x+v$?
Degger [83]

Answer:

v = 7

is the value for which

x = (-21 - √301)/10

is a solution to the quadratic equation

5x² + 21x + v = 0

Step-by-step explanation:

Given that

x = (-21 - √301)/10 .....................(1)

is a root of the quadratic equation

5x² + 21x + v = 0 ........................(2)

We want to find the value of v foe which the equation is true.

Consider the quadratic formula

x = [-b ± √(b² - 4av)]/2a ..................(3)

Comparing (3) with (2), notice that

b = 21

2a = 10

=> a = 10/2 = 5

and

b² - 4av = 301

=> 21² - 4(5)v = 301

-20v = 301 - 441

-20v = -140

v = -140/(-20)

v = 7

That is a = 5, b = 21, and v = 7

The equation is then

5x² + 21x + 7 = 0

6 0
3 years ago
Solve the equation:<br><br> 15x11+(29x42)=?
Katyanochek1 [597]

Answer:

1,383

Step-by-step explanation:

15x11+(29x42)

165 + (1,218)

= 1,383

3 0
3 years ago
Read 2 more answers
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