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Dafna11 [192]
4 years ago
9

What is 5x^2 + 8x -4​

Mathematics
2 answers:
Lelechka [254]4 years ago
7 0

Answer:

if your factoring the answer should be (5x-2) (x+2)

miss Akunina [59]4 years ago
4 0

Answer:

(5x−2)(x+2)

Step-by-step explanation:

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A rectangular box has length 9 inches, width 7 inches, and a height of 15 inches. find the angle between the diagonal of the box
uysha [10]
0.92085175 radians  
Let's first calculate the length of the diagonal of the base. Using the Pythagorean theorem:
 b = sqrt(9^2 + 7^2) = sqrt(81 + 49) = sqrt(130) = 11.40175425 
 Now the length of the diagonal to the box. Once again, using the Pythagorean theorem:
 d = sqrt(15^2 + 11.40175425^2) = sqrt(225 + 130) = sqrt(335) = 18.84144368 
 We now have a right triangle where we know the lengths of all three sides. The lengths are:
 a = 15
 b = sqrt(130) ≠11.40175425
 c = sqrt(335) ≠18.84144368
 
 we want the angle opposite to side a. So
 tan(A) = 15/11.40175425 = 1.315587029
 A = atan(1.315587029)
 A = 0.92085175 radians
4 0
4 years ago
Consider the linear expression 4x - 11
olga2289 [7]

Answer:

4 will be the coefficient

while X will be the variable

and the constant term is 11.

6 0
4 years ago
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ipn [44]
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3 0
3 years ago
Write an equation of an ellipse in standard form with the center at the origin and a height of 20 ft. and width of 28 ft.
Tamiku [17]
The standard equation of an ellipse is:

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5 0
4 years ago
Read 2 more answers
Help me please I'm not sure if im right​
leonid [27]

Answer:

291 cm³

Does the answer help you?

7 0
3 years ago
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