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Alex777 [14]
3 years ago
15

I need help please…..

Mathematics
1 answer:
Mashcka [7]3 years ago
6 0

Answer:

??

Step-by-step explanation:

I'm so sorry, I can't see the #'s could you provide a better picture ?

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Graph g(x)=-2x-3<br><br> ........
nekit [7.7K]

Answer:

Well, the x intercept will be -1.5 and the y-intercept will be -3. It will be a negative slope with a slope of -4/2

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3 years ago
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Simplify -7x(4+7x)-8(2-4x)
kakasveta [241]
-28x-49x-16+32x
-77x-16+32x
-45x-16
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3 years ago
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Your friend tells you that if you let him keep 50 of your Pokemon cards for a month, he will give you 1 card extra
ivolga24 [154]

Answer:

0.2682 or 26.82%

Step-by-step explanation:

The monthly interest rate (r) that your friend is willing to pay is:

r=\frac{1}{50}=0.02

The following expression converts a monthly interest rate (r) into an annual interest rate (i):

r=\sqrt[12]{1+i}-1

For r = 0.02:

0.02=\sqrt[12]{1+i}-1 \\1.02^{12}-1=i\\i=0.2682

Your friend is willing to pay an annual rate of 0.2682 or 26.82%.

4 0
3 years ago
There are x ducks in a pond. The number of swans in the pond is equal to the square root of the number of ducks. If the total nu
Mashcka [7]

Answer:

<h2>There are 9 ducks and 3 swans in the pond.</h2>

Step-by-step explanation:

According to the problem, the number of swans in the pond is equal to the square root of the number of ducks, this can be expressed as

s=\sqrt{x}

Where x represents the number of ducks in the pond.

If the total number of swans and ducks is 12, the expression would be

s+x=12

Now, we replace the first equation in the second one

\sqrt{x} +x=12

Then, we elevate each side to the square power

\sqrt{x} =12-x\\(\sqrt{x} )^{2} =(12-x)^{2} \\x=144-24x+x^{2} \\x^{2} -25x+144=0

Using a calculator, the roots are 9 and 16.

Let's evaluate each value.

For x=9, s=\sqrt{9}=3, and 9+3=12, which is true.

For x=16, s=\sqrt{16} =4, and 16+4=20, which is false.

Therefore, there are 9 ducks and 3 swans in the pond.

7 0
3 years ago
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Length of the hypotenuse of the triangle to the nearest tenth of a metre
Lemur [1.5K]

Answer:

The length of the hypotenuse is 2.4m

Step-by-step explanation:

well to start we have to know the relationship between angles, legs and the hypotenuse

α = 55°

o: opposite  = 2.0m

h: hypotenuse

sin α = o/h

cos α= a/h

tan α = o/a

we see that it has (angle, hypotenuse, opposite)

we look at which meets those data between the sine, cosine and tangent

is the sine

sin α = o/ah

Now we replace the values ​​and solve

sin 55 = 2.0/h

0.81915 = 2.0/h

h = 2.0 / 0.81915

h = 2.4415 m

round to the nearest tenth

h = 2.4415 = 2.4 m

The length of the hypotenuse is 2.4m

5 0
4 years ago
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