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mafiozo [28]
3 years ago
8

To make a particular dessert, the recipe calls for 20 g (grams) of chocolate and 15 g (grams) of cornflakes to

Mathematics
2 answers:
kvasek [131]3 years ago
6 0

Answer:

4:3

Step-by-step explanation:

divide both sides by 5 giving you 4:3

vodka [1.7K]3 years ago
4 0

Answer:

4:3

Step-by-step explanation:

First, put chocolate and cornflakes together in the ratio:

20:15

Divide each number by 5:

20:15

4:3

So, the ratio of chocolate to cornflakes in its simplest form is 4:3

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A 4 meter long ladder leans against a 90 degree wall at a 68 degree angle.
Alenkinab [10]

Answer:

Step-by-step explanation:

We use trig to answer these questions:

sin x = opposite side of a triangle / hypotenuse

cos x = adjacent side / hypotenuse

Construct a right triangle with hypotenuse 4 m and lower angle 68 degrees.

The height of the top of the ladder  is then defined by:

sin 68 degrees = height / 4 m, which yields (4 m)(sin 68) = height =

3.71 m

and the distance of the bottom of the ladder from the wall as follows:

cos 68 degrees = horizontal distance / hypotenuse =

1.50 m

3 0
2 years ago
If the table shown below represents a function, then which is the possible value for f?
cluponka [151]

Answer:

C 2

Step-by-step explanation:

This is a parabolic function

Notice how we go negative and then positive

y = ax^2 +bx+c

Let x = 0

-5 = a(0) + b(0) +c

c = -5

y = ax^2 + bx -5

Let x = 3

4 = a(3)^2 +b(3) -5

Let x=-3

4 = a(3)^2 -b(3) -5

Add the two equations

4 = a(3)^2 +b(3) -5

4 = a(3)^2 -b(3) -5

----------------------------

8 = 2a (3)^2 - 10

18 = 2 a(9)

18 = 18a

a =1

Solving for b

4 = 1(3)^2 -b(3) -5

4 = 9 -3b -5

4 = 4 -3b

0 = -3b

0 =b

The equation is

y = (x)^2  -5

Letting y = -1

-1 =x^2 -5

Adding 5 to each side

4 = x^2

Taking the square root of each side

±2 = x

x= ±2

Given the choices

5 0
2 years ago
(2n + 3)(n – 4) = 0<br> need help asap!!!
Anastaziya [24]
Set each binomial equal to zero to solve. 

2n + 3 = 0
2n = - 3
n = - 3 / 2

n - 4 = 0
n = 4

So n = -3/2, 4


6 0
3 years ago
San Antonio, Texas, is located about 30° north of the equator. If Earth's radius is about 3959 miles, approximately how many mil
marusya05 [52]
I have no clue but using division may be an option
6 0
3 years ago
Find the rate of decay of the function b(x)=4(0.006)^x<br><br> Enter your answer as a percent
inna [77]
Try using a calculator i don't have one on me sorry :(
7 0
3 years ago
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