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uranmaximum [27]
3 years ago
13

Write a quadratic whose zeros are 1 and -4

Mathematics
1 answer:
mafiozo [28]3 years ago
5 0

Answer: ( x - 1 ) ( x + 4 ) = 0.

Step-by-step explanation:

Let's see 1. To make this equal to zero you write x - 1 where you substitute 1 in x.

Again let's see -4. To make it equal to zero, you write x + 4 where you substitute -4 in x.

So, this results in ( x - 1 ) ( x + 4 ) = 0

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Given that f(-3) = 4 and f'(-3) = 2, which of the following is the tangent line
Andru [333]

Answer:ask mj

Step-by-step explanation:

4 0
4 years ago
130/105 in its simplest form
Andreas93 [3]
130/105 in its simplest form

\dfrac{130}{105}= \qquad 130= 2.5.13\qquad 105=3.5.7 \\  \\  \\  \dfrac{130}{105}=  \dfrac{2.5.13}{3.5.7} \\  \\  \\   \dfrac{130}{105}=  \dfrac{2.\not 5.13}{3.\not 5.7}=  \dfrac{2.13}{3.7}=  \boxed{ \dfrac{26}{21}} \\  \\  \\ \boxed{ \dfrac{130}{105}=  \dfrac{26}{21}}

I wish you much success in your studies!!!!
5 0
4 years ago
graph the solution to the following system of inequalities y<-2x+7, y greater than or equal to 2x - 3 ​
Alex777 [14]

Answer:

See attached diagram

Step-by-step explanation:

Graph the solution of the inequality y First, draw the dotted line y=-2x+7 (dotted because the sign of the inequality is <). Then determine wich part of the coordinate plane should be shaded. Since the origin's coordinates satisfy the inequality, then this point should belong to the region (red part on the diagram).

Graph the solution of the inequality y\ge 2x-3. First, draw the solid line y=2x-3 (solid because the sign of the inequality is ≥). Then determine wich part of the coordinate plane should be shaded. Since the origin's coordinates satisfy the inequality, then this point should belong to the region (blue part on the diagram).

The intersection of both regions is the solution of the system of two inequalities.

6 0
3 years ago
In a certain country, the average age is 31 years old and the standard deviation is 4 years. If we select a simple random sample
KengaRu [80]

Answer: 0.0062

Step-by-step explanation:

Given : Mean : \mu=\ 31

Standard deviation :\sigma= 4

Sample size : n=100

Assume that age of people in the country is normally distributed.

The formula to calculate the z-score :-

z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}

For x = 32

z=\dfrac{32-31}{\dfrac{4}{\sqrt{100}}}=5

The p-value = P(x\geq32)=P(z\geq5)

=1-P(z

Hence, the the probability that the average age of our sample is at least =0.0062

3 0
4 years ago
Write as an equation in two variables: k(x) = -4x-1
erma4kov [3.2K]

Answer:

y = -4x - 1

Step-by-step explanation:

k(x) = -4x - 1

replace k(x) with y

y = -4x - 1

8 0
3 years ago
Read 2 more answers
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