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noname [10]
3 years ago
7

The dad has a son and a daughter. The daughter is 19 years younger than the son. The son is 13 years younger than the dad (Don't

ask, just keep reading.) The daughter is 21 years old now. How old is the dad?
Dad - 13 years older than son
Son - 19 years older than daughter
Daughter - 21 years old
Mathematics
2 answers:
Ivenika [448]3 years ago
6 0

Answer:

53

Step-by-step explanation:

Elis [28]3 years ago
5 0

Answer:

The Dad is 53

Step-by-step explanation:

21 + 19 = 40 ( Brothers age )

40 + 13 = 53 (Dads age )  

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Which quadratic function has Vertex (-1,4) and passes through (4,19) <br> HELP
hichkok12 [17]

Answer:

f(x)=\frac{3}{5}(x+1)^2+4

Step-by-step explanation:

The equation of a quadratic function in vertex form is given by:

f(x)=a(x-h)^2+k

Where (h,k) is the vertex.

It was given in the question that the vertex of the parabola is (-1,4).

When we substitute the vertex into the formula we get:

f(x)=a(x+1)^2+4

The parabola also passes through (4,19) hence it must satisfy its equation.

19=a(4+1)^2+4

19-4=a(5)^2

15=25a

We divide both sides by 25 to get:

a=\frac{15}{25}= \frac{3}{5}

Hence the quadratic function is:

f(x)=\frac{3}{5}(x+1)^2+4

6 0
3 years ago
Please help due by 10:10!!!!!!!!!!
sertanlavr [38]

Answer:

yes

Step-by-step explanation:

distributing gets you 8x+ 12= 2x-2 +6x+14

8x+12=8x+12

when both sides are simplified, they are equal to each other. This means that there IS a value of x that would make the perimeters equal

not sure what the drop down answers are so hope this helps

4 0
3 years ago
Which graph represents a proportional relationship?<br> A<br> B<br> C<br> D
Andre45 [30]

Answer:

D!

Step-by-step explanation:

its pretty hard to explain but let me put it like this- it crosses through (0,0) and it mirrors itself in the 1st and 3rd quadrants

6 0
3 years ago
No body helped me the last time so I’m posting it again I really need help with this
PIT_PIT [208]
B is equal to 154 degrees. we know this cause half of the circle equals 180 and if you subtract a (26) from 180 you get 154
3 0
3 years ago
How many solutions does the equation have? 4x+19=-9-6x
valentinak56 [21]

Answer:

one solution; x= -28/10

Step-by-step explanation:

5 0
3 years ago
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