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aleksandr82 [10.1K]
2 years ago
14

Help nedeeeddddddddd

Mathematics
2 answers:
tangare [24]2 years ago
6 0

I'm grade 6 I don't know ................

zvonat [6]2 years ago
4 0

Answer:

3x+5

Step-by-step explanation:

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The length of the shorter base in an isosceles trapezoid is 4 in, its altitude is 5 in, and the measure of one of its obtuse ang
siniylev [52]
The sum of angles in any quadrilateral, including trapezoid, is 360⁰. 
Because we have <span>an isosceles trapezoid, we have 2 angles with measure 135⁰,
and we have 2 equal acute angles with measure x⁰.
So, we can find value of acute angle,
135*2 +2x =360⁰
270+2x=360
2x=360-270
2x=90
x=45⁰

So, acute angles in trapezoid = 45⁰.
From triangle ABC,
angle ACB =90⁰
angle A=45⁰,
so angle ABC= 180-(90-45)=45⁰
Triangle ABC is isosceles triangle,so |AC| = |CB|= 5 in.

So, longer base AA' = 5+4+5= 14 in

Now, we can find area of trapezoid.
shorter base = 4 in
longer base = 14 in
altitude =h = 5 in
Area of trapezoid =(1/2)(base1+base2)*h
Area of trapezoid = (1/2)(4+14)*5= 9*5=45 in²
Answer is 45 in².
</span>

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3 years ago
Colby deposited money into a savings account that pays a simple annual interest of 1.8%. He earned $334.80 in interest after 6 y
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Answer:

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Step-by-step explanation:

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Answer:

The answer is x=29

Step-by-step explanation:

-6 = x – 35

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