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Luba_88 [7]
3 years ago
9

Please help (ITS FOR 10 POINTS) its all i have left plsssss

Mathematics
1 answer:
MAVERICK [17]3 years ago
7 0

Answer:

i think d not 100% sure but good luck

Step-by-step explanation:

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Helix
katrin [286]

Answer:

Answer is

Step-by-step explanation:

plus karna h 17.5+ 10+ cm+ 2kg

5 0
3 years ago
Consider the quadratic equation x2=4x-5. How many solutions does the equation have
Norma-Jean [14]
The quadratic formula is =(-b+-sqrt(b^2-4ac))/2a
as you notice the term under the square root is b^2-4ac if it is postive then the equation clearly will have two real soultions if it is negative then the equation will have two imaginary soultion if it is zero then the the equation will have one soultion
so let us calculate b^2-4ac for our given equation
x^2=4x-5 so let us write it in general form which is ax^2+bx+c=0
subtracting 4x from both sides
x^2-4x=-5
adding 5 to both sides
x^2-4x+5=0
a=1,b=-4,c=5
b^2-4ac=(-4)^2-4(1)(5)=16-20=-4
which means the equation has two imaginary soultions
3 0
3 years ago
Read 2 more answers
What is the geometric mean of 8 and 10?
nekit [7.7K]
If the smaller number is x, then the larger number has to be 20 - x in order for the arithmetic mean to be 10, as their sum must be 20.

If the geometric mean is 8 the product of the numbers has to be 64 and so the larger number is 64/x

Solving 64/x = 20 - x gives the quadratic x^2 -20x +64 = 0 so x = 4 or 16.

The two numbers are 4 and 16.
3 0
2 years ago
Read 2 more answers
Michelle is making a scale model of her favorite car. The actual car is 8 feet long and 4 feet wide. Michelle wants her model to
AfilCa [17]

Answer:

6 inches

Step-by-step explanation:

It is given that :

Length of the actual car = 8 feet

Width of the actual car is = 4 feet

Michelle is making a model of her car.

The length of her model car  = 12 inches

Therefore, the ration is 3 : 2

So the width of the model car = 4 x 3/2

                                                 = 6 inches

7 0
3 years ago
A hotel has a large rectangular swimming pool. The hotel wants to build a children's pool that is half the length and half the w
wel

Answer:

The answer is 1898.625

Step-by-step explanation:

Multiply the swimming pool’s length by the width to find the area.

If you want to find the area of the children’s swimming pool, divide the answer by 2.

6 0
3 years ago
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