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elena55 [62]
3 years ago
15

I need help with these three questions someone help me please what are these shapes called

Mathematics
1 answer:
lora16 [44]3 years ago
7 0

Answer:

The first shape is called (I don't know)

The second shape is called Icosahedron

The thrid shape is called Octahedron

Step-by-step explanation:

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Sara went to her local zoo that featured 24 reptile exhibits. If these reptile exhibits
Zanzabum

Answer:

19

Step-by-step explanation:

You take 80% of 24. and do 24 x 80. Round to the nearest whole number.

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3 years ago
Please answer question 21
mixer [17]
7/19 If my answers correct.
8 0
4 years ago
In ΔIJK, the measure of ∠K=90°, KJ = 65, IK = 72, and JI = 97. What is the value of the cosine of ∠J to the nearest hundredth?
kow [346]

Answer:

\cos(J) = 0.67

Step-by-step explanation:

Given

\angle K = 90^o

KJ = 65

IK = 72

JI = 97

Required

\cos(J)

The question is illustrated with the attached image.

From the image, we have:

\cos(J) = \frac{KJ}{JI}

This gives:

\cos(J) = \frac{65}{97}

\cos(J) = 0.67010309278

\cos(J) = 0.67 --- approximated

7 0
3 years ago
. What is the distance between -30 and 20 on the number line?<br> *
fenix001 [56]

Answer:

+50

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
SImplify: x+3/9/x+12/6<br> Really stuck on this problem
Aleksandr-060686 [28]
To simplify this, first, multiply the whole equation with x to get rid of the denominator.

[ x + 3/9/x + 12/6] * x
Simplify 12/6 beforehand, which is 2.
[ x + 3/9/x + 2] * x
Distribute x to each of the terms
x2 + 3/9 + 2x

This is already a simplified equation. If you wan to further simplify by getting rid of the fraction, multiply the whole equation with 9 to eliminate the denominator.

[x2 + 3/9 + 2x]*9
9x2 + 3 + 18x
9x2 + 18x + 3 =0
5 0
3 years ago
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