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Elanso [62]
3 years ago
13

Someone please help me this is the last question on my homework. I have to write a quadratic equation for this word problem...

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
6 0

Answer: 13 mins

Step-by-step explanation:

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PLEASE HELP ASAP!! URGENT!!
Black_prince [1.1K]
A= 9
B= 11

Make sure to try it
4 0
3 years ago
Find the value of c so that (x-5) is a factor of the polynomial p(x)
liubo4ka [24]

I think the question is

Find the value of c so that (x-5) is a factor of the polynomial

p(x) = x^3 + 2x^2 + cx + 10

The other factor is going to be some quadratic.  We can say a few things about its coefficients but let's start by saying in general it's

q(x)= ax^2 + bx + k

p(x) = (x-5)q(x)

x^3 + 2x^2 + cx + 10 = (x-5)(ax^2 + bx+k) = ax^3 + (b-5a)x^2 + (k-5b)x - 5k

Equating respective coefficients,

a=1

b-5a = 2

k - 5b = c

-5k = 10

so we get

b = 2 + 5 = 7

k = 10/-5 = -2

c = k - 5b = 2 - 5(7)= -37

Answer: -37

Check:

(x^2 + 7x - 2)(x - 5) = x^3 + 2 x^2 - 37 x + 10\quad\checkmark




7 0
3 years ago
One day at St. Philip's High School, 1/2 of the pupils walked to school, 1/5 of the pupils came to school by bus, and the remai
Doss [256]
Let P be the number of kids,
we know P>57
take 1-(1/2)-(1/5)=3/10
therefore 57 is 3/10P
3/7P=57
P=57*7/3=133 is the answer
it would be incorrect if we didnt get a positive integer.
7 0
4 years ago
What is the area of this triangle?
fredd [130]

Answer:

i think it's 16

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The expression 15 n + 5 n + 5 Which is another way to write this expression?
bixtya [17]

Answer:

cbdkkdfn

Step-by-step explanation:

bfnsowifnccvl

4 0
3 years ago
Read 2 more answers
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