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Vikki [24]
3 years ago
14

PLEASE HELP WILL MARK BRAINLIEST!

Mathematics
1 answer:
ipn [44]3 years ago
5 0

Answer:

2 x 4 − x 3 + x 2 − 9

Step-by-step explanation:

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Kevin bought 4.6 pounds of pecans for $50.89. About how much was the cost per pound
CaHeK987 [17]

Answer:

Step-by-step explanation:

4.6 pounds of pecans     1 pound of pecans

_________________ = ______________

50. 89 dollars                   x dollars

Set up an equation like this.

Cross multiply

4.6(x)=50.89(1)

divide both sides by 4.6

x=11.06 (about)

So I pound of pecans costs about 11.06 dollars

6 0
3 years ago
Need help with number 2 please
miss Akunina [59]
A the answer is 9.76
B: he paid with 10 dollar bill you have to subtract 10.00-9.76 he received 24 cents back!
7 0
4 years ago
If m and n are zeros of ax2-5x+c, find a and c when m+n=mn=10
kompoz [17]
ax^2+bx+c=0
if m and n are zeros, then:
m+n=\dfrac{-b}{a}\ and\ mn=\dfrac{c}{a}
We have:
ax^2-5x+c=0\to b=-5\\\\m+n=mn=10
substitute
m+n=\dfrac{-(-5)}{a};\ mn=\dfrac{c}{a}\\\\ \left\{\begin{array}{ccc}\dfrac{5}{a}=10&\to a=\dfrac{1}{2}\\\\\dfrac{c}{a}=10\end{array}\right
substitute the value of a to the second equation:
\dfrac{c}{\frac{1}{2}}=10\\\\2c=10\ \ \ |:2\\\\c=5

Answer:  \boxed{a=\dfrac{1}{2};\ c=5}


6 0
3 years ago
Write each number in scientific notation 1 27.5
babymother [125]
1 = 1 x 10 exponent 0
27.5 = 2.75 x 10 exponent 1
8 0
3 years ago
Read 2 more answers
What number is 50 % of 6/5<br> ​
Pavel [41]

Answer:

3/5.

Since the numerator is an even number, you can simply remove half of it.

3 0
3 years ago
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