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
Leona [35]
3 years ago
9

Help! Factor the expressions. x^2 − 4x − 45 =

Mathematics
1 answer:
nasty-shy [4]3 years ago
8 0

Answer:

(x - 9)(x + 5)

Step-by-step explanation:

x² − 4x − 45 =

= x² + 5x  - 9x - 45

= x(x + 5) - 9(x + 5)

= (x - 9)(x + 5)

You might be interested in
3 over 8 multiplied by 10 over 9 multiplied by 16
Gnom [1K]

Answer:

20/3

Step-by-step explanation:

(3/8)*(10/9)*16

This is 30/72 = 5/12

5/12*16=20/3

7 0
1 year ago
Read 2 more answers
Solve the exponential question . Leave your answer as a fraction
Doss [256]

Step-by-step explanation:

problem → 2^x = 4, solve for x

⇒2^x=4

⇒2^x=2^2

⇒x=2

7 0
3 years ago
How do u find tip amount from a bill of $67.51 and a tip of 20%
Troyanec [42]

Answer:

$13.50 is the tip

OR

$81.01 is total bill

Step-by-step explanation:

total of bill multiplied by 20%

$67.51 x .20 = $13.50

For total bill amount:

$67.51 + $13.50 = $81.01

4 0
3 years ago
Base=30cm<br> Heights=20cm <br> Find the X?
Leviafan [203]

Answer: 25

Assuming the dotted line touches the middle of the base of the triangle,

Using Pythagoras Theorem,

(30/2)^2 + (20)^2 = x^2

x^2 = (15)^2 + 400

x^2 = 625

x = √625 or -(√625)

x = 25 or -25

But since x needs to be a positive value,

x = 25

8 0
3 years ago
Read 2 more answers
Which statement is not used to prove that ΔABC is similar to ΔADE? triangles ABC and ADE in which point E is between points A an
Levart [38]

Answer:

The correct option is;

The sum of angles A and B are supplementary to angle C

Step-by-step explanation:

The statements are analysed as follows

1. Angle A is congruent to itself reflective property

Which shows that ΔABC and ΔADE have a common and equal angle

2. Segment ED and CB are parallel

From the transversal line passing EB and CB which shows that the angles ∠ADE and ∠ABC are equal and also ∠AED and ∠ACB are equal

The statement is used to prove similarity between the ΔABC and ΔADE

3. The sum of angles A and B are supplementary to angle C

The above statements relates to only ΔABC and i does not show similarity between ΔABC and ΔADE.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Line segment AB was translated 2 units right and 7 units down to create line segment CD. A transversal intersects the two line s
    11·1 answer
  • Find the solution set
    12·1 answer
  • Juan bought n video games write an expression to show he total cost of the games if each game cost $16
    8·1 answer
  • I am part of a whole. I am greater than three fourths but less than nine tenths. I am a decimal with a 3 in its hundredth place.
    13·2 answers
  • The earth's diameter is about 13,000 km while the distance between the earth and the moon is about 390,000 km. how many earth's
    6·1 answer
  • a right triangle has a 30o angle. the leg adjacent to the 30o angle measures 25 inches. what is the length of the other leg? rou
    11·2 answers
  • Solve in order of operation<br> Thanks
    10·2 answers
  • Simplify 9x + 4y -4y -3x +5y
    8·1 answer
  • Please help with math problem if do 5 star
    10·1 answer
  • Whoever gets it right can have brainliest, but answer ASAP!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!