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Effectus [21]
3 years ago
9

Anyone that can help me with this?

Mathematics
2 answers:
Flauer [41]3 years ago
8 0
Okay. 10×5=50cm^2 is the area of the rectangle
The height of the triangle is (18-10)=8cm
So (8×5)÷2=20cm^2
50+20=70cm^2 is the area of the composite shape
Galina-37 [17]3 years ago
8 0
The answer is b. I hoped it helped
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Dwayne's family has many pets. at the house they have both cats and birds. between all the cats and birds, they have 16 eyes and
densk [106]
Let C be the number of cats and B be the number of birds.
Each cat has 4 legs while each bird has 2 legs. Thus,
4C + 2B = 22
2B = 22 - 4C

Each cat and each bird has 2 eyes
2C + 2B = 16
Substituting 2B
2C + 22 - 4C = 16
2C = 6
C = 3
2B = 22 - 4(3)
B = 5

2 cats and 5 birds
6 0
2 years ago
Read 2 more answers
If one zero of the following polynomial 8x^2-13x-4k is the reciprocal of the other, then find k
Lana71 [14]

Answer:

Step-by-step explanation:

hello :

if x1 and x2 this zero for ax²+bx+c  you have : x1 = 1 /x2  means :x1 × x2 =1

but : x1 × x2 = c /a

in this exercice : a =8  and b = -13  and c = - 4k

so : c/a =-4k/8

so : -4k/8 = 1

-4k = 8        k = 8/-4      k = -2  

this polynomial is : 8x²-13x +8

6 0
2 years ago
8 more than a number x
alexandr1967 [171]
X+8 because ur adding 8 to a number (x)
7 0
3 years ago
Read 2 more answers
Find the volume of the cone please help me
Ostrovityanka [42]

Here,

Height (h) = 5

Radius (r) = 5

Volume = ?

Now,

◆ Volume = 1/3πr²h

= 1/3*3.14*5*5*5

= 130.83 unit^3

I hope you understand...

It is Right answer...

Thank you♥♥

5 0
2 years ago
PLEASE HELP ASAP! THANKS ​
antiseptic1488 [7]

Answer: 3 the actual answer is 2.995421844

Step-by-step explanation:

4 0
2 years ago
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