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3 years ago

5

Which of the following is NOT an improper fraction?

2 answers:

Lisa [10]3 years ago

6 0

Answer:

C

Step-by-step explanation:

numerator is bigger than denumerator

П=3,14

MissTica3 years ago

5 0

D.7/7 because that will equal 1 whole and 1 whole isn’t a improper fraction even if you put it as a fraction

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Directions: Solve for the missing proportion in each of the following problems.

butalik [34]

Answer:

9) n =15

10) n = 15

11) n = 24

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3 years ago

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Anyone know this one?

Shalnov [3]

Answer:

B) 2(3x^2+10x+15

Step-by-step explanation:

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2 years ago

What is the length of segment XY?

Brilliant_brown [7]

Answer:

StartRoot 53 EndRoot units

XY = √53

Step-by-step explanation:

Choose which is point 1 and point 2 so you don't confuse the coordinates.

Point 1 (–4, 0) x₁ = –4 y₁ = 0

Point 2 (3, 2) x₂ = 3 y₂ = 2

Use the formula for the distance between two points.

$L = \sqrt{(x_{2}-x_{1})^{2} + (y_{2}-y_{1})^{2}}$

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$XY = \sqrt{49 + 4}$

$XY = \sqrt{53}$

Therefore the line of segment XY is √53.

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3 years ago

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Which choice gives the center and radius of the circle represented by the equation?

shutvik [7]

$(x-h)^2+(y-k)^2=r^2$ is the equation of a circle centered at $(h,k)$ with radius $r$ .

Here $h=7$ , $k=-3$ , and $r^2=25\implies r=5$ . So the answer is (C)

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3 years ago

Solve the following system of equations by substitution. Show all steps.

Alinara [238K]

Answer:

Given system of equations:

$\begin{cases}f(x)=-x^2+2x+3\\g(x)=-2x+3\end{cases}$

To solve by substitution, equate the equations and solve for x:

$\begin{aligned}f(x) & = g(x)\\\implies -x^2+2x+3 & = -2x+3\\-x^2+4x & = 0\\x^2-4x & = 0\\x(x-4) & = 0\\\implies x & = 0\\\implies x-4 & = 0 \implies x=4\end{aligned}$

Therefore, the x-values of the solution are $x = 0$ and $x = 4$ .

To find the y-values of the solution, substitute the found values of x into the functions:

$f(0)=-(0)^2+2(0)+3=3$

$g(0)=-2(0)+3=3$

$f(4)=-(4)^2+2(4)+3=-5$

$g(4)=-2(4)+3=-5$

Therefore, the solutions to the given system of equations are:

$(0, 3)$ and $(4, -5)$

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2 years ago