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DochEvi [55]
2 years ago
14

Geometry What is the value of x to the nearest tenth?

Mathematics
1 answer:
Setler [38]2 years ago
5 0

Answer:

  x = 9.4

Step-by-step explanation:

The angle bisector divides the sides proportionally:

  x/15.4 = 4.7/7.7

  x = (15.4)(4.7/7.7) . . . . multiply by 15.4

  x = 9.4

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Patient A’s dose of a certain medicine is twice the dose of Patient B. Together the two patients receive 72 milligrams of the me
s2008m [1.1K]

Answer:

24

Step-by-step explanation:

7 0
3 years ago
Pls help :(
Masja [62]

Answer:

similarity

Step-by-step explanation:

look , dude

the two triangles have the following features:

the angle B= angle C = 90 degree

the angle A= the angle F

so  the third angle in the first triangle = the third angle in the second triangle

so you have one condition of similarity which is the three angles are equal

to get the answer for lengths :

ab/fe= constant of proportionality

thus ab/fe=2.5/5=.5

so ac/13=.5 thus ac=6.5

and 6/de=.5 so de=12

4 0
2 years ago
The length plus the width of a rectangle is 10. Let x represent the length. The equation for the area y of the
yuradex [85]

Answer:

length of rectangle = 5

width of rectangle = 5

Area of rectangle = 25

Step-by-step explanation:

Since the length of the rectangle is "x", and the value of the area is given by the product of the length "x" times the width "10-x", indeed, the area "y" of the rectangle is given by the equation:

y=x\,(10-x)=10x-x^2

Now, they tell us that the area of the rectangle is such that coincides with the maximum (vertex) of the parabola this quadratic expression represents. So in order to find the dimensions of the rectangle and therefore its area, we find the x-coordinate for the vertex, and from it, the y-coordinate of the vertex, which is the rectangle's actual area.

Recall that the formula for the x of the vertex of a quadratic of the form :

y=ax^2+bx+c

is given by the formula:

x_{vertex}=-\frac{b}{2\,a}

which in our case gives:

x_{vertex}=-\frac{b}{2\,a}\\x_{vertex}=-\frac{10}{2\,(-1)}\\x_{vertex}=5

Therefore, the length of the rectangle is 5, and its width (10-x) is also 5.

The area of the rectangle is therefore the product of these two values: 5 * 5 = 25

Which should coincide with the value we obtain when we replace x by 5 in the area formula:

y=10x-x^2\\y=50-(5)^2\\y=50-25\\y=25

8 0
3 years ago
Given that f(x) = x2 + 12x + 32 and g(x) = x+ 4, find (f - g)(x) and
frosja888 [35]

Answer:

x²+11x+28

Step-by-step explanation:

(f - g) (x) = f(x) - g(x)

x² + 12x + 32 - (x + 4) = x² + 11x + 28

6 0
2 years ago
Solve all 5 questions for 62 points if they are correct you will be marked brainiest
katen-ka-za [31]

Answer:

1.0.003

2.40 minutes

3.a,e

4.a,c,d

5.1/24

Step-by-step explanation:

6 0
3 years ago
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