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ruslelena [56]
2 years ago
8

Andrea's dad is 57 kilograms heavier than Andrea. Andrea weighs 34 kilograms. how much does Andrea's dad weigh?

Mathematics
2 answers:
lys-0071 [83]2 years ago
6 0
Too solve this, you just do 57 + 34 which is 91.
exis [7]2 years ago
6 0
All you do is 57+34= 91 because Andreas dad is 57 km MORE THAN her.
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HELP ME PLEASE!!!!!!!!!!!!!!!!
Pepsi [2]

The ordered pairs of the solution to the system of equation are [(3, 6), (-3, 18)]

<h3>System of equations</h3>

Given the following system of equations expressed as:

f(x) = x² - 2x + 3 and f(x) = -2x + 12

Since they are both function of x, hence;

x² - 2x + 3 = -2x + 12

x² - 2x + 3 + 2x - 12 = 0

x² - 9 = 0

x² = 9

x = ±√9

x = ±3

If x = 3

f(x) = -2(3) + 12

f(x) = 6

If x = -3

f(x) = -2(-3) + 12

f(x) =18

Hence the ordered pairs of the solution to the system of equation are [(3, 6), (-3, 18)]

Learn more on system of equation here: brainly.com/question/14323743

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6 0
2 years ago
Q6: Which is the graph of the polar equation r=1/1-sin theta.
AveGali [126]

Answer:

The correct answer is C.

Step-by-step explanation:

The given equation is;

r=\frac{1}{1-\sin(\theta)}

This implies that;

r(1-\sin(\theta)=1

r-r\sin(\theta)=1

Let us write in Cartesian coordinates by substituting;

r=\sqrt{x^2+y^2} ,y=r\sin(\theta)

\sqrt{x^2+y^2}-y=1

\sqrt{x^2+y^2}=y+1

Square both sides;

(\sqrt{x^2+y^2})^2=(y+1)^2

This implies that;

x^2+y^2=y^2+2y+1

x^2=2y+1

y=\frac{1}{2}x^2-\frac{1}{2}

This is an equation of a parabola that opens upwards with a  y-intercept of -\frac{1}{2}.

The correct choice is C

4 0
3 years ago
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Phantasy [73]

Answer:

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Step-by-step explanation:

It shows that x is a unpredictable number but also show the value of 3 and 7

5 0
2 years ago
Read 2 more answers
The volume of a cube is 125mm3. What is the length of its side?
Anastaziya [24]

Answer:

5

Step-by-step explanation:

All the edges of a cube have the same length, and the volume of a cube is the length of an edge taken to the third power. So the length of the edge of a cube with a volume of 125 is 5.

8 0
2 years ago
Read 2 more answers
A certain car depreciates such that its value at the end of each year is p % less than its value at the end of the previous year
icang [17]

Answer:

b(b/a)^2

Step-by-step explanation:

Given that the value of the car depreciates such that its value at the end of each year is p % less than its value at the end of the previous year and that car was worth a dollars on December 31, 2010 and was worth b dollars on December 31, 2011, then

b = a - (p% × a) = a(1-p%)

b/a = 1 - p%

p% = 1 - b/a = (a-b)/a

Let the worth of the car on December 31, 2012 be c

then

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Let the worth of the car on December 31, 2013 be d

then

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d = c(1-p%)

d = b(1-p%)(1-p%)

d = b(1-p%)^2

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d = b((a-a+b)/a)^2

d = b(b/a)^2 = b^3/a^2

The car's worth on December 31, 2013 =  b(b/a)^2 = b^3/a^2

4 0
3 years ago
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