1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kirill [66]
3 years ago
14

Graph this function: f(x) = x2-4x - 5 Step 1: Identify a and b.

Mathematics
1 answer:
Lina20 [59]3 years ago
4 0

Answer: a= 1 b= -4 x = 2 f(2)= -9 the x intercepts are 5,0 and -1, 0 f(o) = -5

Step-by-step explanation:

You might be interested in
5x^2-41x+8=0 please helpp
jeka94

Answer:

Use the quadratic formula

=

−

±

2

−

4

√

2

x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac​​

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

5

2

−

4

1

+

8

=

0

5x^{2}-41x+8=0

5x2−41x+8=0

=

5

a={\color{#c92786}{5}}

a=5

=

−

4

1

b={\color{#e8710a}{-41}}

b=−41

=

8

c={\color{#129eaf}{8}}

c=8

=

−

(

−

4

1

)

±

(

−

4

1

)

2

−

4

⋅

5

⋅

8

√

2

⋅

5

2

Simplify

3

Separate the equations

4

Solve

Solution

=

8

=

1

5

7 0
2 years ago
Read 2 more answers
Select all that show a 16% increase or decrease.
Dafna1 [17]

Answer:

hi leifjewihgoeigyq398gy

Step-by-step explanation:

uehwgwGPy8923otirfp

4 0
3 years ago
If f(x) = x and g(x) = 2x + 7, what is<br>f[90X)] when g(x) = 11?​
kumpel [21]

\bf \begin{cases} f(x) = x\\ g(x) = 2x+7 \end{cases}~\hspace{7em}g(x)=11\implies \stackrel{g(x)}{11}=2x+7 \\\\\\ 4=2x\implies \cfrac{4}{2}=x\implies \implies \boxed{2=x} \\\\[-0.35em] ~\dotfill\\\\ f[90x]\implies f\left[90\left( \boxed{2} \right)\right]\implies f(180)=\stackrel{x}{180}

8 0
2 years ago
Please help me with this.
kompoz [17]

Answer:

75\sqrt{2}(\sqrt{3}-1)

Step-by-step explanation:

In every right triangle, a leg is given by the multiplication of the sine of its opposite angle and the hypothenuse.

In this case, the opposite angle of x is 15°, and the hypothenuse is 300. So, we have

x = 300\sin(15) = 75\sqrt{2}(\sqrt{3}-1)

3 0
3 years ago
A fruit vendor sells 60 pieces of fruit that are either apples or oranges. There are 12 more apples than oranges.
Hunter-Best [27]

Answer:

a. let x be the number of apples and let y be the number of oranges

x + y = 60

x = y + 12

b. Apples: 24 Oranges: 36

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just don’t want to waste my time in case you don’t want me to :)

6 0
2 years ago
Other questions:
  • What is quotient of 18/1000
    8·2 answers
  • (05.01)Miller has a painting that is 4 ft by 8 ft. What will the dimensions of the painting be if he scales it down by a factor
    8·2 answers
  • Priya starts with $50 in her bank account. She then deposits $20 each week for 12 weeks.
    12·1 answer
  • Please please i need help i did not understand it<br> please do it .........
    13·2 answers
  • How to find the slope of a graph
    15·1 answer
  • Select all the system of equations that have exactly one solution
    14·1 answer
  • Missing angels in triangles worksheet
    7·1 answer
  • I need help with the bottom part I know the top parr
    12·1 answer
  • What best describes the relationship between consecutive exterior angles?
    8·1 answer
  • Kiara bought fabric to make a dress and a sewing machine. The total cost of her purchase, $80.50, included both the cost of her
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!