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
padilas [110]
3 years ago
12

Evaluate the expression when m=4 m^2-9m-5

Mathematics
2 answers:
Vsevolod [243]3 years ago
8 0
The awnswer is 6 eldddddddddddd
enyata [817]3 years ago
3 0

Answer:-25

Step-by-step explanation:

simplify

You might be interested in
What is the scale factor in the dilation if the coordinates of A prime are (–7, 6) and the coordinates of C prime are (–4, 3)?
olchik [2.2K]

Option A: \frac{1}{3} is the dilation factor

Explanation:

The Coordinates of the square ABCD are A(-21,18), B(-12,18), C(-12,9), D(-21,9)

Also, the coordinates of the square A'B'C'D' are A'(–7, 6), B'(-4,6), C'(-4,3), D'(-8,3)

Now, we shall determine the scale factor in the dilation if the coordinates A' and C'.

Since, the dilation is the enlargement of the image in the same shape but different size.

To determine the scale factor, let us divide A'C' by AC

Thus, we have,

\begin{aligned}A^{\prime} C^{\prime} &=\sqrt{(-4+7)^{2}+(3-6)^{2}} \\&=\sqrt{3^{2}+(-3)^{2}} \\&=\sqrt{9+9} \\&=\sqrt{18}\\&=3\sqrt{2} \end{aligned}

Also,

\begin{aligned}A C &=\sqrt{(-12+21)^{2}+(9-18)^{2}} \\&=\sqrt{9^{2}+(-9)^{2}} \\&=\sqrt{81+81} \\&=\sqrt{162}\\&=9\sqrt{2} \end{aligned}

Dividing A'C' by AC, we have,

\frac{A'C'}{AC} =\frac{3\sqrt{2} }{9\sqrt{2}} =\frac{1}{3}

Thus, \frac{1}{3} is the dilation factor

3 0
3 years ago
Read 2 more answers
What is the slope of the line?
Xelga [282]

Answer:

3/4

Step-by-step explanation:

7 0
3 years ago
How much of the circle is shaded? Write your answer as a fraction in simplest form
Valentin [98]

Answer:

11/20

Step-by-step explanation:

Finding the common denominator, which is 20, we convert 1/5 into 4/20 and 1/4 into 5/20. Adding those up, the remainder when subtracted from 1, the total, is 11/20.

8 0
2 years ago
Calculate the length of the circumference of a circle with diameter of 7cm
Bad White [126]

The circumference of the circle is given by the equation C = pi * D. Incorporating the length of the diameter into the equation, we have,  

C = pi * D

                C = pi * 7cm

                C = 21.99 cm 

8 0
3 years ago
Two quantities are related, as shown in the table:
mixer [17]
This answer is Y=-1/2x+11 I believe
5 0
3 years ago
Read 2 more answers
Other questions:
  • (y^x-1)^2 standard form
    10·1 answer
  • 4. How much sugar is needed to make 3 cup cakes?
    14·1 answer
  • A real estate agent sells a house for ​$228.317 A sales commission of 6% is charged. The agent gets 51​% of this commission. How
    11·1 answer
  • What is the answer?
    13·1 answer
  • Albert had a goal of saving $80. He saved 115% of his goal. How much money did Albert save?
    9·1 answer
  • What us 94.1 MHz=?Hz
    5·1 answer
  • An item is priced at $14.32. If the sales tax is 6%, what does the item cost including sales tax
    10·2 answers
  • What is the equation of the line shown in this graph?
    12·2 answers
  • Angle M and N are vertical angles. Angle M has a measure of x + 20. Angle N has a measure of 99 degrees. What is the value of x
    14·1 answer
  • A rectangular prism is shown.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!