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
sashaice [31]
3 years ago
5

Solve for x. x2 + 7x + 10 = 0

Mathematics
1 answer:
Troyanec [42]3 years ago
6 0

Answer:

x = -2, -5.

Step-by-step explanation:

x^2 + 7x + 10 = 0

Note that 2*5 = 10 and 2 + 5 = 7 so the factors are:

(x + 2)(x + 5) = 0

x + 2 = 0 gives x = -2

x + 5 = 0 gives x = -5.

You might be interested in
Find the amount of time.<br><br> I=$450, P=$2400, r=7.5%
Aliun [14]
2.5 years
~You need to set this problem up in the I=PRT form. This should be your formula then, 450=2400(.075)(t). Then do 2400 times .075 and then times that by t which equals 180t. To get rid of that t then take 450 divided by 180 and you get 2.5. Remember when working with rates put them in decimal form also but your time in years.

I hope this helps you:)
3 0
3 years ago
Convert the rainfall amounts to feet and make a new line plot.
Cerrena [4.2K]

Answer:

46in

Step-by-step explanation:

brainiest is appreciated

3 0
3 years ago
Read 2 more answers
2.5 liters = _ gallons<br> Pls halp
Korolek [52]
2.5 liters = 0.66 gallons
4 0
3 years ago
(Algebra II ) What is the equation of y = x^3 with the given transformations? vertical compression by a factor of 1/7, horizonta
NNADVOKAT [17]
\bf \qquad \qquad \qquad \qquad \textit{function transformations}&#10;\\ \quad \\&#10;&#10;\begin{array}{rllll}&#10;% left side templates&#10;f(x)=&{{  A}}({{  B}}x+{{  C}})+{{  D}}&#10;\\ \quad \\&#10;y=&{{  A}}({{  B}}x+{{  C}})+{{  D}}&#10;\\ \quad \\&#10;f(x)=&{{  A}}\sqrt{{{  B}}x+{{  C}}}+{{  D}}&#10;\\ \quad \\&#10;f(x)=&{{  A}}\mathbb{R}^{{{  B}}x+{{  C}}}+{{  D}}&#10;\end{array}  \bf \begin{array}{llll}&#10;% right side info&#10;\bullet \textit{ stretches or shrinks horizontally by  } {{  A}}\cdot {{  B}}\\&#10;\bullet \textit{ horizontal shift by }\frac{{{  C}}}{{{  B}}}\\&#10;\qquad  if\ \frac{{{  C}}}{{{  B}}}\textit{ is negative, to the right}\\&#10;\qquad  if\ \frac{{{  C}}}{{{  B}}}\textit{ is positive, to the left}\\&#10;\bullet \textit{ vertical shift by }{{  D}}\\&#10;\qquad if\ {{  D}}\textit{ is negative, downwards}\\&#10;\qquad if\ {{  D}}\textit{ is positive, upwards}&#10;\end{array}

\bf ----------------------------\\&#10;f(x)=x^3\textit{compression by }\frac{1}{7}\quad or\quad A=7&#10;\\ \quad \\&#10;f(x)=7x^3\impliedby \textit{8 units to the left, or }C=+8&#10;\\ \quad \\&#10;f(x)=7(x+8)^3\impliedby \textit{now, reflection over x-axis, means}&#10;\\ \quad \\&#10;f(x)=-7(x+8)^3\impliedby \textit{a negative leading term's coefficient}
6 0
2 years ago
suppose that you plan on taking a summer job selling magazines subscriptions . the magazine company will help you pay $0.75 for
alina1380 [7]

<u>Answer:</u>

Money earned by selling 175 magazine subscriptions will be 3176.25

<u>Solution: </u>

Given that you are planning to take a summer job selling magazine subscription.

For first subscription, magazine company will help you to pay $0.75

For each additional subscription sold, magazine company will pay you $0.20 more than what was paid for previous subscription.

So for second subscription, payments will be = 0.75 + 0.20 = 0.75 + 0.20 x 1

And for third subscription, payments will be = 0.75 + 0.20 = 0.75 + 0.20 x 2

Generalizing for nth subscription we get

Payments for nth subscription = 0.75 + 0.20(n-1)

so here we can see that arithmetic sequence is formed, having first term

a_1 = 0.75 and common difference = d = 0.20  

We need to determine sum of above arithmetic sequence for n = 175

<u><em>Formula for sum of arithmetic sequence is as follows </em></u>

\mathrm{S}_{\mathrm{n}}=\frac{n}{2}[2 a+(n-1) d]

In our case n = 175, a = 0.75, d = 0.20

\begin{array}{l}{=>\mathrm{S}_{175}=\frac{175}{2}[(2 \times 0.75)+(175-1) 0.20]} \\\\ {=>\mathrm{S}_{175}=\frac{175}{2}[1.5+(174 \times 0.20)]} \\\\ {\Rightarrow \mathrm{S}_{175}=\frac{175}{2} \times 36.3=3176.25}\end{array}

Hence money earn by selling 175 magazine subscriptions will be 3176.25

6 0
3 years ago
Other questions:
  • A veterinarian collects data on the number of times race horses are raced during their careers. The veterinarian finds that the
    10·1 answer
  • Which of the graphs in Fig. Q25.12 best illustrates the current I in a real resistor as a function of the potential difference V
    6·1 answer
  • Solve the following system of equations and show all work. y = 2x^2 y = –3x −1
    13·1 answer
  • I need help on case number 6
    6·1 answer
  • Asia uses an overhead projector to enlarge a drawing. The original measure 75 cm wide by 100 cm high. She moves the projector so
    10·1 answer
  • Find the value of each variable
    6·1 answer
  • Please help! A little confused.
    12·1 answer
  • Rectangle HYGT has a perimeter of 170 inches. If the length is 10x - 7
    8·1 answer
  • WILL GIVE BRAINLST <br><br> HAVE A GOOD DAY
    9·2 answers
  • IMPORTANT: Jamie says that the expressions 6x-2x+4 and 4(x+1)are not equivalent because one expression has a term that is subtra
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!