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notka56 [123]
3 years ago
6

I need help..........

Mathematics
1 answer:
Marat540 [252]3 years ago
5 0
Answer: 3rd one
Rearrange the original equation so it fits the model of : ax^2+bx+c=0
Then use the quadratic formula to find all possible answers.
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15. What is the volume of a rectangular prism with a length 8 cm, width 5 cm and height 3 cm? <br>​
Rama09 [41]

Answer:

120cm³

Step-by-step explanation:

V=w·h·l=5·3·8=120cm³

4 0
3 years ago
Read 2 more answers
Can someone plz help me with this one problem plz!!!
s344n2d4d5 [400]

The answer is no, as the y value is negative while the x value is positive

4 0
3 years ago
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Use linear approximation to approximate √25.3 as follows.
Sophie [7]

The idea is to use the tangent line to f(x)=\sqrt x at x=25 in order to approximate f(25.3)=\sqrt{25.3}.

We have

f(x)=\sqrt x\implies f(25)=\sqrt{25}=5

f'(x)=\dfrac1{2\sqrt x}\implies f'(25)=\dfrac1{10}

so the linear approximation to f(x) is

L(x)=f(5)+f'(5)(x-5)=5+\dfrac{x-5}{10}=\dfrac x{10}+\dfrac92

Hence m=\frac1{10} and b=\frac92.

Then

f(25.3)\approx L(25.3)=\dfrac{25.3}{10}+\dfrac92=\boxed{7.03}

4 0
3 years ago
Find the diameter of a circle whose equation is
Olin [163]

Answer:

D) 20

Step-by-step explanation:

x^2 + (y - 2)^2=100

This can be rewritten as

(x-0)^2 + (y - 2)^2=10^2

This is in the form

(x-h)^2 + (y - k)^2=r^2

The radius is 10

The diameter is 2 times the radius

d = 2*r = 2*10 = 20

7 0
3 years ago
Find the perimeter of the figure to the nearest hundredth. PLZ HELP PLZ DUE TODAY
kkurt [141]

Answer:

perimeter of the figure = 37 ft

Step-by-step explanation:

r = 1/2 × (12 - 3 - 3)

r = 1/2 × 6

r = 3 ft

circumference = 2 π r

circumference = 2 × 3.14 × 3

circumference = 18.84

perimeter of the figure = 3 + 3 + 3 + 3 + 3 + 3 + 18.84

perimeter of the figure = 36.84

perimeter of the figure = 37 ft

3 0
3 years ago
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