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ira [324]
3 years ago
12

4x + 3 = x + 2(x + 7) x=

Mathematics
1 answer:
stiv31 [10]3 years ago
4 0

Answer:

X= -11/4 + -1/4 √145 or X= -11/4 + 1/4 √145

Step-by-step explanation:

Hope this helped<3

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What is the slope and y-intercept of a vertical line
klio [65]
Vertical line has undefined slope <span>because all points on the line have the same x-coordinate.

and vertical line will never cross y axis so will not have y intercept</span>
6 0
3 years ago
Which expression is equivalent to 181 + |-71?<br> 0 -15<br> O-1<br> O 1<br> O 15
morpeh [17]

Step-by-step explanation:

181+1=182

182-71=111

the answer is 111

7 0
3 years ago
The product of a binomial and a trinomial is x3+3x2-x+2x2+6x-2 Which expression is equivalent to this
solong [7]
The answer is the first one.
Explanation:
X^3 stays the same because there are no other cubed numbers in the problem
Next you combine the x^2s
The x^2s are +3x^2 and +2x^2
Since they are both positive, you add them: 3x^2 + 2x^2 = 5x^2
Next you do the x values
-x and +6x, also known as 6x - x = 5x
Lastly, you just add in the -2 and get:
X^3 + 5x^2 + 5x - 2
8 0
3 years ago
Sam got 80% on his Math test. he had 32 problems correct. how many questions are on the test?
lorasvet [3.4K]

Answer:

40

Step-by-step explanation:

4 0
3 years ago
in a right triangle, the leg opposite to the angle of 30 degrees is 7 in. find the lengths of the hypentenuse and the other leg
satela [25.4K]
Answer:

Hypotenuse = 14 inches

Adjacent = 12.12 inches

Step-by-step explanation:

Using SOH, CAH TOA Method

According to SOH

Sin(theta) = Opposite/Hypotenuse
Given theta = 30°
Opposite = 7 inches

Sin30° = 7/Hypotenuse
Hypotenuse = 7/Sin30°
Hypotenuse = 7/0.5
Hypotenuse = 14 inches

The other leg will be the adjacent saying x using Pythagoras Theorem to get x
Hypotenuse^2 = Opposite^2 + Adjacent^2
14^2 = 7^2 + x^2
x^2 = 14^2 - 7^2
x^2 = 196 - 49
x^2 = 147
x = sqrt of 147
x = 12.12 inches
5 0
3 years ago
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