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marshall27 [118]
3 years ago
14

What are the x-intercepts for the function ƒ(x) = -x(x − 4)?

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
7 0

Answer:

D

Step-by-step explanation:

f(x)=-x(x-4)

f(x)=-x²+4x

-x²+4x=0

x(-x+4)=0

x=0, x=4

(2)

4x²-x-3=0

(4x²+3x)-(4x-3)=0

x(4x+3)-1(4x+3)=0

x=1, x=-3/4

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Write a system of equations to describe the situation below, solve using elimination, and fill in the blanks.
In-s [12.5K]

Answer:

C

Step-by-step explanation:

We are given

The student council earned $1.25 for every cup of hot chocolate it sold

and $0.75 for every cup of apple cider it sold

total number of cup is 375

We can see that first term is 1.25x

and we have

The student council earned $1.25 for every cup of hot chocolate

so, to find total cost of hot chocolate , we multiplied 1.25 with x

that's why

x must be the number of cups of hot chocolate sold

So the answer must be C

7 0
3 years ago
1, 1, 2, 3, 5, 8, 13, 21, ___Justin loves solving number patterns. He completes one pattern every moring while he eats his cerea
kati45 [8]
Answer:

The correct option is A

The missing number is 34

Explanation:

By inspection, the third number is obtained by adding the two preceding numbers.

1 + 1 = 2

The next number is obtained by adding the two preceding numbers.

2 + 1 = 3

This continues as:

3 + 2 = 5

8 + 5 = 13

13 + 8 = 21

21 + 13 = 34

8 0
1 year ago
The scatter plot below shows the relationship between the length (x) in meters and mass f(x) in kg of a marine animal
Vlad [161]
F(x) = -9 + 10.3x probably.
It's definitely not the first or last option as they have negative gradients (i.e. negative x-coefficient) and so represent a negative correlation. The data given tells us there is a positive gradient and so a positive correlation.
It could be the second option as the second and third are not so vastly different but I would go for the third because it appears to most closely fit the data pattern.
6 0
3 years ago
Read 2 more answers
A ______________ divides a segment or angle in half.
densk [106]

Answer:

bisector

Step-by-step explanation:

A <u>bisector</u> divides a segment or angle in half.

6 0
2 years ago
Read 2 more answers
Apply the distributive property to create an equivalent expression.<br><br> -9•(5j+k)
dmitriy555 [2]
-45j+-9k
because -9 times 5j is -45j
and -9 times k is -9k
4 0
2 years ago
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