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
eduard
3 years ago
10

Find x in the image below. Simplify any radicals.

Mathematics
1 answer:
IgorLugansk [536]3 years ago
8 0

Answer:

10

Step-by-step explanation:

x(x+80) = 30²

x²+80x=900

x²+80x-900=0

(x+90)(x-10) = 0

x= -90 or x= 10

x = 10 is the answer

You might be interested in
Amy uses two thirds of a yard fabric for each pillow she makes how many yards of fabric will she need in order to make 8 pillows
Aneli [31]
2/3 yard= 1 pillow

To find the total yards needed for 8 pillows, multiply 2/3 yard per pillow by 8 pillows.

= 2/3 * 8
multiply numerators; multiply denominators

= (2*8)/(3*1)

= 16/3
convert to a mixed number

= 5 1/3 yards needed


ANSWER: 5 1/3 yards is needed to make 8 pillows.

Hope this helps! :)
8 0
3 years ago
Lines a and b are parallel. line c is perpendicular to both line a and line B. Which statement about lines a,b and C is not true
7nadin3 [17]

When lines are parallel, they have the same slope, so the statement "line a and line b have the same slope" is TRUE


When lines are perpendicular, the slopes are opposites (the sign and number is flipped)

For example:

slope is 2

perpendicular line's slope is -1/2

slope is -1

perpendicular line's slope is 1/1 or 1

slope is 4/5

perpendicular line's slope is -5/4


When you multiply(the product) perpendicular slopes together, they equal -1. Since line c is perpendicular to line a and line b, the product of their slopes is -1.(so this is true)


The statement "the sum of the slopes of line a and b is 0" is false because if they have the same slope, when added together the result would not be 0. The slopes of line a and line b is -2/3, so the sum would be -4/3.

7 0
3 years ago
Read 2 more answers
Oman said that it is impossible to raise a number to the power of 2 and get a value less than the original number. Do you agree
Eva8 [605]
Oman is wrong, if you raise any decimal number less than one to a power of 2 the number just gets smaller
7 0
3 years ago
Yumiko solved |x|>5 by solving x>-5 and x<5. explain the error yumiko made
Whitepunk [10]

Answer:

switched signs around

Step-by-step explanation:

I believe that s/he switched the signs around so

|x|>5 is solved by x<-5 and x>5

but I'm not quite sure, sorry

3 0
2 years ago
23. Two coins are tossed. Alan gets a point if the coins match and Sondra gets a point if they do not match.
Keith_Richards [23]

Answer:

C. They have the  same chance of winning.

Step-by-step explanation:

Probability (2 tails) = 1/2 * 1/2 = 1/4

Probability( 2 heads = 1/2 * 1/2 = 1/4.

Therefore the Probability  they match = 1/4 + 1/4 = 1/2.

The probability of  they don't match = 1 - 1/2 = 1/2 because all probabilities add up to 1. There are only 4 possible results and their probabilities must add up to 1.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Marty and Ethan both wrote a function, but in different ways.
    13·2 answers
  • Can someone help me with Question 2?
    6·1 answer
  • What is the slope of the line whose equation is –48 = 2x − 8y? Help Meh
    11·2 answers
  • Independent random samples of students were taken from two high schools, R and S, and the proportion of students who drive to sc
    12·1 answer
  • Having debt keeps you from building wealth
    5·1 answer
  • What's the value of x to the nearest tenth? Question 12 options: A) 7.9 B) 9.7 C) 5.9 D) 8.1
    15·1 answer
  • Triangle PQR is transformed to triangle P'Q'R'. Triangle PQR has vertices P(3, −6), Q(0, 9), and R(−3, 0). Triangle P'Q'R' has v
    6·1 answer
  • Lupita y Fernando y Andrés quieren comprar entre los tres una bicicleta que ven todos los días en el aparador de la tienda todo
    6·1 answer
  • Jada ran 15.25 kilometers. Han ran 8,500 meters. Who ran farther?
    13·2 answers
  • Write an equation for the line that passes through (−8.5,11) and (5,−2.5)
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!