Help me please!!!!:((((

Mathematics

2 answers:

OLEGan [10]3 years ago

8 0

Answer:

the median is 83

Step-by-step explanation:

you need to find the center that's what median is the center

kirza4 [7]3 years ago

8 0

83

you need do look for the middle line in the box and whisker plot and that’ll tell you what it is

Similar Triangles Question w/ Picture

melomori [17]

Answer:

$EF=\dfrac{120}{7}\ ft$

Step-by-step explanation:

Triangles CEF and CAD are similar right triangles (they have the common angle, so by AA postulate they are similar). Similar triangles have proportional corresponding sides, so

$\dfrac{EF}{AD}=\dfrac{CF}{CD}\\ \\\dfrac{EF}{40}=\dfrac{CF}{CD}$

Triangles DEF and DBC are similar right triangles (they have the common angle, so by AA postulate they are similar). Similar triangles have proportional corresponding sides, so

$\dfrac{EF}{BC}=\dfrac{DF}{DC}\\ \\\dfrac{EF}{30}=\dfrac{CD-CF}{CD}\\ \\\dfrac{EF}{30}=1-\dfrac{CF}{CD}$

Substitute the fraction $\frac{CF}{CD}$ from the first equality into the second equality:

$\dfrac{EF}{30}=1-\dfrac{EF}{40}\ [\text{Muliply by 120}]\\ \\4EF=120-3EF\\ \\4EF+3EF=120\\ \\7EF=120\\ \\EF=\dfrac{120}{7}=17\dfrac{1}{7}\ ft$

7 0

4 years ago

Find the area of the yellow area shown here a. 4x^2+2x+6 b.2x^2+4x+6 c.2x^2+2x+6

Airida [17]

The horizontal yellow are is : 2(x+3) = 2x + 6

The vertical yellow are is : x(x+2+x) = x(2x+2) = 2x² + 2x

Total area = 2x + 6 + 2x² + 2x = 2x² +4x + 6 (answer B)

5 0

3 years ago

A = b + c / d What does b equal ???

stellarik [79]

Answer: 1

Step-by-step explanation:

5 0

3 years ago