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
Anvisha [2.4K]
2 years ago
11

Solve 169x^2-42.25=0 by using square roots? NEED HELP!!!

Mathematics
1 answer:
jekas [21]2 years ago
5 0

Answer:

x = 1/2 , x = -1/2

Step-by-step explanation:

Given equation;

169x² - 42.25

Find:

Solution of equation using square root

Computation:

169x² - 42.25

We know that 13² = 169 and 6.5² = 42.25

So,

[13x]² - [6.5]²

a² - b² = (a + b)(a - b)

So,

[13x]² - [6.5]² = [13x + 6.5][13x - 6.5]

So,

13x + 6.5 = 0 , 13x - 6.5 = 0

x = 6.5 / 13 , x = -6.5 / 13

x = 1/2 , x = -1/2

You might be interested in
What is the area of a rectangle that measures 4 cm by 12cm
Softa [21]
A = l*w
A = 4*12 = 48cm^2
The area of the rectangle is 48cm^2 (cm squared)
8 0
3 years ago
HELP ME PLEASE!! im being timed :(
jeka57 [31]

Answer:

the first one and the third one

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A pre-image and its image under a translation have the same orientation?
Black_prince [1.1K]

Answer:

In a translation, ALL of the points move the same distance in the same direction. A translation is called a rigid transformation or isometry because the image is the same size and shape as the pre-image.

Step-by-step explanation:

In addition, the corresponding segment sides of the pre-image and image are parallel.

8 0
2 years ago
Which function has zeros at x=23 and x=−4?
VLD [36.1K]

Answer:

g(x) = a(x - 23)(x + 4)

Step-by-step explanation:

Weren't there possible answer choices to share?

if this function has zeros at 23 and -4, then the function has the following form:

g(x) = a(x - 23)(x + 4)

3 0
2 years ago
How to find 4 times (-5)
vfiekz [6]

Answer: -20

Step-by-step explanation: Using the same expression except positive numbers, 4 x 5 = 20.

In this case, we can use this equation to find the product for the expression

4 x -5.

If 4 x 5 = 20, then 4 times -5 will also equal 20. However, since there is a negative factor in this expression, our answer will be negative causing our answer to be <u>-20.</u>

6 0
3 years ago
Read 2 more answers
Other questions:
  • If two angles of a triangle are congruent, then the sides opposite those angles are congruent by the converse to the isosceles t
    13·2 answers
  • " According to the Joy Cone Company, their waffle cones have a diameter of 2 5/8 inches and a
    14·1 answer
  • Dan pays £220 per week in rent.
    7·2 answers
  • 2(4x + 1) &lt; 3(2x - 3)
    6·1 answer
  • Can someone help me on this? which one is it???
    14·2 answers
  • The total cost of a $112.75 meal with a 20% tip​
    5·1 answer
  • What is the inverse of the function y = 2x + 3?
    11·2 answers
  • Ruby wants to buy a bag that costs Php 675.95. If she has saved Php 148.50 for it, how much more does she need?
    12·1 answer
  • What is the approximate volume of a cylinder with a radius of 3 feet and a height of 4 feet?
    9·2 answers
  • Which pair of numbers has an lcm of 16​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!