Can someone help me please!!

Mathematics

1 answer:

Kisachek [45]3 years ago

6 0

9514 1404 393

Answer:

AE = CE = 23; BE = DE = 20

Step-by-step explanation:

Put the values of the variables in their place and do the arithmetic.

AE = 2u+5 = 2(9) +5 = 23

BE = 6v-1 = 6(3.5) -1 = 20

CE = 3u-4 = 3(9) -4 = 23

DE = 8v-8 = 8(3.5) -8 = 20

The diagonals cross at their midpoints, so the quadrilateral is a parallelogram.

You might be interested in

Need help big time this is due at 11:59 please help

natita [175]

Answer:

D) 12

Step-by-step explanation:

7 + 4 + 1 = 12

Hope that helps!

4 0

3 years ago

Read 2 more answers

What is the rate of change for f(x) =7 sin x-1 on the interval from x=0 to x=piover 2

Oksi-84 [34.3K]

$\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
\begin{array}{llll}
average\ rate\\
of\ change
\end{array}\\\\
-------------------------------$

$\bf f(x)= 7sin(x)-1 \qquad 
\begin{cases}
x_1=0\\
x_2=\frac{\pi }{2}
\end{cases}\implies \cfrac{f\left( \frac{\pi }{2} \right)-f(0)}{\frac{\pi }{2}-0}
\\\\\\
\cfrac{[7\cdot 1-1]~-~[7\cdot 0-1]}{\frac{\pi }{2}}\implies \cfrac{6-(-1)}{\frac{\pi }{2}}\implies \cfrac{6+1}{\frac{\pi }{2}}\implies \cfrac{7}{\frac{\pi }{2}}\implies \cfrac{14}{\pi }$

7 0

4 years ago

#7 HELP ! WILL GIVE BRANLIEST

likoan [24]

Answer:

x = 8, y = 4√3, z = 8√3

Step-by-step explanation:

Assuming that y is the altitude of the triangle (perpendicular to the hypotenuse), the triangles are similar. So we can write proportions:

x / 4 = 16 / x

x² = 64

x = 8

4 / y = y / 12