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Paha777 [63]
3 years ago
14

For every 13 birds born at the zoo there are two animals born. There were 44 if you were animals born last month then birds so h

ow many animals were born?
Mathematics
1 answer:
Daniel [21]3 years ago
4 0
The ratio birds : animals = 13 : 2
so for every 1 animal, 6.5 birds were born

last month: animals = birds - 44
birds - animals = 44
use trial and improvement to find:
if there were 52 birds, there must be 8 animals
CHECK: 52 - 8 = 44
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1. Henri cut a rope into two pieces with lengths having a ratio of 5 to 2. The shorter piece is
ruslelena [56]

The length of the shorter rope is 20 cm.

<h3>How to find the original length of the rope using ratio?</h3>

He cut a rope into two pieces with lengths having a ratio of 5 to 2.

The shorter piece is 70 cm long.

The length of the original rope can be calculated as follows:

The ratio of the length of the rope is as follows;

5 : 2

let

x = length of the original rope

Therefore,

length of shorter piece = 2 / 7 × 70

length of shorter piece = 2 / 7 × 70

length of shorter piece =  140 / 7

length of shorter piece = 20 cm

Therefore, the length of the shorter rope is 20 cm.

learn more on ratio here: brainly.com/question/15418103

#SPJ1

8 0
2 years ago
Simplify the expression using trigonometric identities: sec (–θ) – cos θ.
ololo11 [35]

Answer:

sin θ . tan θ

Step-by-step explanation:

Note : -

sec ( - θ ) = sec θ

Formula / Identity : -

sec θ = 1 / cos θ

sec ( - θ ) - cos θ

= [ 1 / cos θ ] - cos θ

{ LCM = cos θ }

= [ 1 / cos θ ] - [ cos²θ / cos θ ]

= [ 1 - cos²θ ] / cos θ

{ 1 - cos²θ = sin²θ }

= sin²θ / cos θ

{ sin²θ = sin θ . sin θ }

= sin θ . sin θ / cos θ

{ sin θ / cos θ = tan θ }

= sin θ . tan θ

Hence, simplified.

4 0
2 years ago
I already know the answer but ima check and see.
maw [93]
I got 2.29 is the difference and debras cows made more obviously

Fraction form is 229/100


MARK ME BRAINLIEST PLEASE
3 0
3 years ago
Help me I don’t get this!!!
nalin [4]
101 yeo don't venture know
4 0
4 years ago
Please help me :). I'll give brainiest
Dennis_Churaev [7]

Answer:

axis of symmetry: x=3, vertex: (3,23)

Step-by-step explanation:

-\frac{b}{2a}=-\frac{12}{-4}=3

axis of symmetry(x-value of the vertex): x=3

input this value into the function to get the vertex

-2(3)^{2}+12(3)+5

-18+36+5

18+5

23 is the y-value of the vertex

(3,23)

plz mark me brainliest. :)

4 0
3 years ago
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