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
Alisiya [41]
3 years ago
15

What are the solutions of the quadratic equation (x + 3)2 = 49? x = –2 and x = –16 x = 2 and x = x = 4 and x = –10 x = 40 and x

= –58
Mathematics
2 answers:
steposvetlana [31]3 years ago
5 0
Im gonna assume you are solving for x, the equation (x + 3)2 = 49 x is equal to 21.5 or 21 and 1/2. however the rest aren’t equations they’re just x = number and there isn’t much to do with that
xxTIMURxx [149]3 years ago
4 0

Answer:

x = 4 and x = -10

Step-by-step explanation:

expand the squared brackets

(x +3) (x+3) = 49

Distribute them

x^2 + 3x +3x +9 = 49

bring the 49 to the other side to make one side 0, make sure to change signs

x^2 + 3x +3x +9 - 49 = 0

combine like terms

x^2 + 6x -40 = 0

factor what numbers multiply to get -40 that also add/subtract to get +6

(x - 4) (x + 10)

turn it into an equation to get the answer to x

x - 4 = 0              x + 10 = 0

x = 4                    x = -10

You might be interested in
Someone please help, having trouble with this
Dennis_Churaev [7]

Answer:

C

Step-by-step explanation:

it describes how much the shown graph extends left and right.

Note that 4 is included, but -2 itself not. that's why it's empty and A isn't correct.

B and D are completely inapplicable

pls brainliest

8 0
3 years ago
At an important​ meet, Allyson won the​ women's 100 meters in 12.24 seconds. Find her average rate.
otez555 [7]

The rate is 8.17 meters per second

Further explanation:

In order to find the rate we have to divide the distance covered by the woman by the time she covered it in.

Given

Distance=d=100\ meters\\Time=t=12.24\ sec\\So,\\Rate=\frac{d}{t}\\=\frac{100}{12.24}\\=8.17\ ms^{-1}

The rate is 8.17 meters per second

Keywords: Speed, distance

Learn more about speed at:

  • brainly.com/question/4710621
  • brainly.com/question/4767370

#LearnwithBrainly

6 0
3 years ago
Sarah took the advertising department from her company on a road trip to meet with a potential client including Sarah a total of
Svetach [21]
Sarah has spent 7 first class tickets, and 6 coach tickets that totals for 13 people that took the trip. 

$1040 * 7 = $7280 

$140 * 6 = $840 

$7280 + $840 = $8120 for Sarah's total budget she spent for 7 first class tickets and 6 coach tickets for 13 people that took the trip.  

Answer:
7 first class tickets.
6 coach tickets.

Hope this helps! 
<em>
</em>
<em>~ ShadowXReaper069</em>

7 0
3 years ago
100 Points ! ! !
Andrews [41]

$3299.62

  • compounded daily interest : \sf A = P(1 + \dfrac{r}{n})^{nt}

  • \sf  9,824.00(1 + \dfrac{3.62\%}{365})^{(365)(8)}

  • \sf \$13,123.62

total money he will have : $13,123.62

  • amount earned : $13,123.62 -  $9,824 = $3299.62
8 0
2 years ago
Read 2 more answers
0.5 is 30 minutes how do I work out more times e.g. How many minutes is 0.45 or 0.48 I don't know how to do it help
kompoz [17]
I dont know if this will help you, but a 15th (.15) of an hour is 9 minutes!
So it'd be
.15=9 minutes
.30=18 minutes
.45=27
.60=36
.75=45 
.90=54
and obviously
1.0 is 60 minutes
(((EVERY .05 IS THREE MINUTES))))
3 0
2 years ago
Other questions:
  • PLEASE HELP NOW PLEASE
    13·1 answer
  • 1. In a pet store, there are 6 dogs and 10 cats. What is the ratio of cats to dogs as
    8·1 answer
  • PLEASE HELP 11 points
    7·1 answer
  • Which of the following is the best estimate of 694 divided by 4. A. 150 B. 180 C. 210 D.280
    5·2 answers
  • The gas mileage for a certain model of car is known to have a standard deviation of 6 mi/gallon. A simple random sample of 49 ca
    7·1 answer
  • Given the domain (-2,2,4) what is the range for the relation 3x + y = 3? <br>​
    13·2 answers
  • What percentage of a 15-ft tree is a little 3-ft sapling?
    10·2 answers
  • A coach surveyed a random sample of 200 college athletes about their height.
    15·1 answer
  • Solve the Antiderivative.​
    13·1 answer
  • Jen walked 1/2 of a mile in 1/6 of an hour. At this rate , how long will it take her to walk 1 1/2 miles to the park
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!