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3 years ago

When a willow tree was planted it was 24 inches tall. Three years later, the tree was

Mathematics

2 answers:

Ede4ka [16]3 years ago

8 0

Answer:

Step-by-step explanation:

54-24 = 30 inches in 3 years

30/3 = 10 inches per year

julia-pushkina [17]3 years ago

3 0

Answer:

Height of tree 3 years ago: 24 inches

Height of tree now: 54 inches

54-24 = 30

The tree grew 30 inches in 3 years.

So on average it grew 10 INCHES PER YEAR.

Let me know if this helps!

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Given: AB ∥ DC

RSB [31]

Answer:

$A=1,720.16\ units^2$

Step-by-step explanation:

we know that

The area of the trapezoid is equal to

$A=\frac{1}{2}(DC+AB)DE$

step 1

Find the measure of angle DAE

m∠ADC+m∠DAE=180° -----> by consecutive interior angles

we have

m∠ADC = 134°

substitute

134°+m∠DAE=180°

m∠DAE=180°-134°=46°

step 2

In the right triangle ADE

Find the length side AE

cos(∠DAE)=AE/AD

$AE=cos(46\°)(40)\\AE=27.79\ units$

step 3

In the right triangle ADE

Find the length side DE

sin(∠DAE)=DE/AD

$DE=sin(46\°)(40)\\DE=28.77\ units$

step 4

Find the area of ABCD

$A=\frac{1}{2}(DC+AB)DE$

we have

$DC=32\ units\\AB=DC+2(AE)=32+2(27.79)=87.58\ units\\DE=28.77\ units$

substitute

$A=\frac{1}{2}(32+87.58)28.77$

$A=1,720.16\ units^2$

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4 years ago

Take 2 y2 - 3 y - 5 from y3 - 6 y2 + 5 y . Select the correct answer.

Alla [95]

Answer:

Step-by-step explanation:

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4 years ago

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xenn [34]

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3 years ago

in a game, what card would you need to draw to get a score of 0 if you have a (-16), (-35), and 18 in your hand?

m_a_m_a [10]

Answer:

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Step-by-step explanation:

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3 years ago

chuck wants to increase his savings account by 45%. if chuck has230 in his account, how much will he have after increasing his s

katovenus [111]

Answer:

$333.5

Step-by-step explanation:

First we have to find 45% of 230 and then add that value to 230

(we can also find 145% of 230, which is essentially the same thing)

so 45% of 230 is:

230*(45/100)= $103.5

230+103.5= $333.5

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3 years ago