3 years ago

Help with the first question!! Is it right??

Mathematics

1 answer:

Aloiza [94]3 years ago

6 0

No its 20 u should know that

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In the figure, Δ ABC Δ XYZ. What is the perimeter of ΔABC? Show your work.

slava [35]

Answer:

Step-by-step explanation:

∆ABC~ ∆XYZ

AB= 11 that is half of XY = 22

therefore XZ/2 = AC (base) = 32/2 = 16

and YZ /2 = BC(hypotenuse) = 44/2 = 22

(a= 11, b= 16, c= 22)

perimeter of a triangle

P = a+b+c

P= 11+16+22= 49

8 0

3 years ago

Gerald bought 3 shirts for 8.40 each, 2 shirts for 12.89 each, and one shirt for 18.90. What was the average cost of the shirts?

Vanyuwa [196]

So first, you add all the numbers together

8.40*3=25.20
12.89*2=25.78
18.90*1=18.90
____________
$69.88

Divide the number of shirts: 6 by the total amount

69.88
_____ = $11.64666= $11.65 is your answer!
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3 years ago

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The figure is made up of 2 cones and a cylinder. The cones and cylinder have a 4 cm diameter.

Nina [5.8K]

20 cm is the answer good luck

4 0

3 years ago

CAN SOMONE PLS HEP WITH THIS!!!! ASAP FOR BRAINLIEST

quester [9]

Answer: How can I help?

Step-by-step explanation:

6 0

3 years ago

Following the lead of the National Wildlife Federation, the Department of the Interior of a South American country began to reco

chubhunter [2.5K]

Answer:

After 2009 the quality of the forests in this country improving.

Step-by-step explanation:

Consider the provided function.

$f(t) = \frac{1}{3}t^3-\frac{5}{2}t^2 + 80$

$f'(t) = t^2-5t$

Substitute f'(t)=0.

$t^2-5t=0$

$t(t-5)=0$

$t=0\ or\ t=5$

It is given that (0 ≤ t ≤ 10)

The test interval are (0,5) and (5,10)

For (0 < t < 5) the value of $f'(t)$

For (5 < t < 10) the value of $f'(t) >0$

Hence, the function is increasing from (5,10).

t = 0 corresponds to 2004.

Therefore, after 2009 the quality of the forests in this country improving.

7 0

3 years ago