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
CaHeK987 [17]
2 years ago
6

What are the excluded values of x for

Mathematics
1 answer:
ss7ja [257]2 years ago
3 0

Answer:

x = - 2, x = 9

Step-by-step explanation:

Given

f(x) = \frac{x^2-9x}{x^2-7x-18}

The denominator of f(x) cannot be zero as this would make f(x) undefined.

Equating the denominator to zero and solving gives the values that x cannot be.

x² - 7x - 18 = 0

(x - 9)(x + 2) = 0

Equate each factor to zero and solve for x

x + 2 = 0 ⇒ x = - 2

x - 9 = 0 ⇒ x = 9

The excluded values are x = - 2, x = 9

You might be interested in
Write the equation for the line that passes theough (-4 , 9) and is parallel to the given line
devlian [24]

Step-by-step explanation:

Equation is y = -3/4x + 12.

3 0
3 years ago
I just need help at this point.
Greeley [361]

Answer:

Step-by-step explanation:you take the 740 and divide it by 40 to get the hourly wage then times that by the 32 and theirs your answer

4 0
3 years ago
Read 2 more answers
In ΔABC, m∠B = m∠C. The angle bisector of ∠B meets AC at point H and the angle bisector of ∠C meets AB at point K. Prove that BH
solniwko [45]

Answer:

See explanation

Step-by-step explanation:

In ΔABC, m∠B = m∠C.

BH is angle B bisector, then by definition of angle bisector

∠CBH ≅ ∠HBK

m∠CBH = m∠HBK = 1/2m∠B

CK is angle C bisector, then by definition of angle bisector

∠BCK ≅ ∠KCH

m∠BCK = m∠KCH = 1/2m∠C

Since m∠B = m∠C, then

m∠CBH = m∠HBK = 1/2m∠B = 1/2m∠C = m∠BCK = m∠KCH   (*)

Consider triangles CBH and BCK. In these triangles,

  • ∠CBH ≅ ∠BCK (from equality (*));
  • ∠HCB ≅ ∠KBC, because m∠B = m∠C;
  • BC ≅CB by reflexive property.

So, triangles CBH and BCK are congruent by ASA postulate.

Congruent triangles have congruent corresponding sides, hence

BH ≅ CK.

5 0
3 years ago
Complete the following multiplication problems. a. 0.34 × 6 b. 0.11 × 4 c. 17 × 0.07 d. 28 × 0.003 e. 3.8 × 5 f. 5.931 × 7 g. 14
kvasek [131]
A. 2.04
b .44
c.1.19
d .084
e. 19
f. 41.517
g.182.91
h. 96.16
i. .24
j. .0225
k. .0018
l. .00592
m.2.07
n. 2.175
o. .01359
p. 3.00552
q. 4.07
r. 71.064
s. 27.877
t. 35.7124
3 0
3 years ago
Read 2 more answers
Combine like terms to simplify the expression: 7x + 3y - 2 + 6x + 1 + y^2
a_sh-v [17]

The correct answer is B because after you simplifiy the expression, you would  get that answer:

7x + 3y - 2 + 6x + 1 + y^2

combine all the like terms to one side first

7x + 6x - 2 + 1 + y^2

then simplify

13x - 1 + y^2 or  y^2 + 3y + 13x - 1

8 0
3 years ago
Other questions:
  • Can someone make this is right? Thanks!!
    5·2 answers
  • Marina babysits her neighbors' kids once a week and earns $40 each night. She loves coffee so she treats herself three times a w
    5·1 answer
  • 1. What is the equation of the line in slope-intercept form?
    15·1 answer
  • Nigel paints 5/4 square yards in 1/3 hour.How much did he paint in 5 hours
    11·1 answer
  • Sarah has 8 cups of canned tuna for making tuna salad sandwiches. She uses 1/2 of a cup of canned tuna in each sandwich. what is
    13·1 answer
  • A parabola opening up or down has vertex (0,
    5·1 answer
  • What is the volume of the right triangular prism in cubic meters? Round to the nearest cubic meter
    14·1 answer
  • 8) Find the midpoint of the equation y = 4x + 6 between the x-intercepts and the y-intercepts.​
    9·1 answer
  • Please answer correctly!! I’ll mark as brainliest! <br><br> No links no fake answers
    13·1 answer
  • Help me pleaseeeeeeeeeee
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!