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3 years ago

Help me please!!! i only have 25 mintues until i have to turn it in

Mathematics

1 answer:

I am Lyosha [343]3 years ago

7 0

Answer:

See explanation

Step-by-step explanation:

A <u>parallelogram</u> is a quadrilateral with parallel opposite sides. The main property of a parallelogram is that the opposite sides of the parallelogram are congruent.

1. Sides AB and CD are congruent, then

$4x=18\\ \\x=\dfrac{18}{4}=4.5$

2. Sides AD and BC are congruent, so

$\dfrac{1}{3}x=7\\ \\x=7\cdot 3=21$

3. Sides AD and BC are congruent, so

$x+4=15\\ \\x+4-4=15-4\\ \\x=11$

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In this equation you have to solve for x

lidiya [134]

Answer:

Step-by-step explanation:

tan 36° = x/40

x = 40 * tan 36°

x ≈ 29.1

6 0

2 years ago

Solve both questions please ❤️❤️

harina [27]

Answer:

1. y=7.2

2. x=18

Step-by-step explanation:

1. Triangles CMN and CBA are similar triangles (by AAA postulate). Similar triangles have proportional corresponding sides, so

$\dfrac{CM}{CB}=\dfrac{CN}{CA}\\ \\\dfrac{12}{12+y}=\dfrac{10}{10+6}\\ \\12\cdot 16=10\cdot (12+y)\\ \\192=120+10y\\ \\10y=72\\ \\y=7.2$

2. GK is angle G bisector. Use angle bisector's property:

$\dfrac{GH}{GI}=\dfrac{KH}{KI}\\ \\\dfrac{40}{24}=\dfrac{30}{x}\\ \\40x=24\cdot 30\\ \\4x=24\cdot 3\\ \\x=6\cdot 3=18$

8 0

2 years ago

If your input is 5 what is the output?

Debora [2.8K]

Answer:

When the input is 5, the output is 11.

Step-by-step explanation:

Replace x with 5: 3(5) - 4 = 15 - 4 = 11

When the input is 5, the output is 11.

8 0

2 years ago

Read 2 more answers

What 2 numbers whose sum is 105.7 the numbers are 19, 85.2, 533, 571, 88.2, 525, 20, 17.5, 400, 261, 20.5 ,125, 7, 23, 901, 30

givi [52]

To make it quickly we can consider only those numbers which will give us a decimal of xxx.7. There are only a few numbers like this: 85.2, 88.2, 20.5.

I tried adding 85.2 to 17.5 and it gave me 102.5 - it was close but not close enough :)

So I picked 85.2 + 20.5 = 105.7 and voila :)

6 0

2 years ago

I need help on these questions...<br><br> 10,11,12,13,14,15,16,17,18,19,20

Kipish [7]

11. x= -3/7

12. -2

13. -36

14. -9.1

15. -7/3

16. -7

6 0

2 years ago