x^2+3=7x
Quadratic Formula

Answers

Answer 1

Answer:

=

7

±

3

7

2

Step-by-step explanation:

Answer 2

Answer:

=7±√37/2

Step-by-step explanation:


Related Questions

Matthew made a fruit salad in which the ratio of blueberries to red grapes is 8:6 if Matthew use 28 blueberries how many red grapes did he use

Answers

Answer:

21 red grapes

Step-by-step explanation:

B:G

8:6

28:x

28/8=3.5

therefore 6*3.5 = x

Answer:

The answer is 21

Step-by-step explanation:

If you do 28/8 you get 3.5. So he used 3 1/2 blueberries. Then you have to times 6 by 3.5 to get 21. Put it back into ratio form and you get 28:21

Hope this helps!

What is the measure?

Answers

Answer:

70-45

Step-by-step explanation:

becauae w= 70-45 and w+45=70

Isabella is travelling in Brazil during the summer, She knows that a 15-minute phone call home to her family costs $45.85 and a 20-minute phone call costs $58.30 sabella only has $55.81 to spend on her phone call. How long can she talk to her family?​

Answers

19 minutes ..
Divides 45.85 by 15 you will get 3 same for the other cost- the divide 3 by 55.81 and you get 19

The toll on a highway is based on the number of miles driven. If the toll on a 15-mile stretch of highway is $0.60, find the cost to drive a 80-mile stretch?

Answers

Answer:

20 it would cost 20 dollars to drive an 80-mile stretch

There are 320 students in a school.
There are 36 more boys than girls.

What fraction of the students in the school are boys?

Answers

196/320 is fraction

4. What expression represents the width of the room?

Answers

Answer:

35-4

Step-by-step explanation:

Answer:

Let x = represents the width

m.

Step-by-step explanation:

hope that helps -w-

3/8 - 1/4x =1/2 x - 3/4
please help solve for x and show work

Answers

Answer:

x=3/2 (or 1.5)

Step-by-step explanation:

Subtract 3/8 from both sides

Simplify

Subtract 1/2x from both sides

Simplify

Multiply both sides by 4

Simplify

Divide both sides by -3

How do you solve this and please use explanation if you can.

Answers

Answer:

i honestly dont know

Step-by-step explanation:

i need pointsss

Kathryn and karina are neighbours and they are each planning rosebushes and butterfly plants in their yard. They bought their plants from the same store. Catherine spent $111 on four rosebushes and seven butterfly plants. Karina spent $132 on five rosebushes and eat butterfly plants. What is the cost of one rosebush and the cost of one butterfly plant?

A rosebush : $10, butterfly plant $7

B Rose bush: $9 ,butterfly plant $12

C rosebush; 12 , butterfly plant $9

D rose bush : $14, butterfly plant $7

Answers

Answer:

d a rosebush 14 butterfly plant 7

Step-by-step explanation:

don't believe me ask some body else okkkkkur

What is the area of this parallelogram?

A. 28 m²

B. 56 m²

C. 84 m²

D. 120 m²



PLS HELP I'LL GIVE BRAINLYIST

Answers

Answer:

84m^2 or C

Step-by-step explanation:

area = base * height

= 12 * 7 = 84

Answer:

8 + 4 = 12 x 7 = 84m

Sharon made $45 in interest by placing $500 in a savings account with simple interest for 1 year. What was the interest rate?

Answers

Answer: The interest rate was 9%.

Step-by-step explanation:

If principal amount P is invested at the rate of r percent with simple interest(I) for t years, the formula to find rate :

[tex]R=\dfrac{I\times100}{P\times t}[/tex]

As per given,

P = $ 500, I = $45, t = 1 year

Substitute values in formula , we get

[tex]R=\dfrac{45\times100}{500\times1}\\\\\Rightarrow R=9\%[/tex]

Hence,  The interest rate was 9%.

if triangle def is similar to triangle jkl find kl

Answers

Answer:

KL=45

Step-by-step explanation:

The temperature was 80°F and then fell 20°F.

Answers

60 degrees Fahrenheit
60 degrees Fahrenheit

A car travels a distance of 190 miles in a time of 3.4 hours.
What is its average speed rounded to 1dp?

Answers

Answer:

55.9 mph

Step-by-step explanation:

190/3.4 = 55.88 mph rounded to one dp = 55.9 mph

A car travels a distance of [tex]190[/tex] miles in a time of [tex]3.4[/tex] hours, then  its average speed will be  [tex]56[/tex] miles per hour.

What is average speed ?

Average speed is speed is the total distance traveled by the car in a particular time of interval.

Average speed [tex]=\frac{Total \ Distance}{Total \ Time}[/tex]

We have,

Distance [tex]=190[/tex] miles

Time[tex]= 3.4[/tex] hours

So, Using the above given formula,

Average speed [tex]=\frac{Total \ Distance}{Total \ Time}[/tex]

                          [tex]=\frac{190}{3.4}[/tex]

                         [tex]=56[/tex] miles per hour

So, the average speed of car is [tex]56[/tex] miles per hour which is find out using the above given formula.

Hence, we can say that if a car travels a distance of [tex]190[/tex] miles in a time of [tex]3.4[/tex] hours, then  its average speed will be  [tex]56[/tex] miles per hour.

To know more about average speed click here

https://brainly.com/question/9834403

#SPJ2

what is the gradient of the following shape​

Answers

You mind explaining it? Like the question

area is the amount of .......a figure covers ?​

Answers

Answer:

surface

Step-by-step explanation:

Answer: Area for a 2D image is the space it covers.

Step-by-step explanation:

If you have an empty square and you shade it in, what you are shading is its area. You can find area of a square or rectangle by multiplying its length by its width. For more complicated shapes there are formulas you can use.

Please help me please help me thank you

Answers

Answer:

[tex]2\sqrt{30}[/tex]

Step-by-step explanation:

I dont feel like explaining

find x: 9(2x+1)=81(3x+2)​

Answers

Answer:

Exact form: x =  -17\25

Decimal form: x = -0.68

40 people can ride the roller coaster every 15 minutes. How many people can ride the roller coaster every 3 hours?

Answers

Answer:

480

Step-by-step explanation:

Answer:

486 people can ride the roller coaster in 3 hours

Step-by-step explanation:

40÷15 = 2.7

2.7 × (60×3)

2.7×180= 486

Two angles are congruent if

Answers

If they have the same measure two circles are congruent if they have the same diameter

Answer:

they are exactly the same

Step-by-step explanation: congruent means that they are equal, so if the angles are the same they are congruent

Choices are 152
124
60
65
45
90

Answers

Guessing 124

:) good luck

Guy plz Quickly
Ashley wants to know how much wrapping paper is needed to cover a box with the dimensions shown.

What is the surface area of the box?


A.
140 square inches

B.
190 square inches

C.
95 square inches

D.
175 square inches

Answers

Answer:

A. 190 inches

Step-by-step explanation:

Plug in the numbers to the surface area formula  to get 190, i messed up last time

190 I was working for like 20 min on this

I need help with this question

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the indices,

[tex] \frac{ {2}^{6} }{ {2}^{4} } \times {2}^{5} [/tex]

===>

[tex] {2}^{6 - 4} \times {2}^{5} [/tex]

===>

[tex] {2}^{2} \times {2}^{5} [/tex]

===>

[tex] {2}^{5 + 2} [/tex]

===>

[tex] {2}^{7} [/tex]

hence the answer is

[tex] {2}^{7} [/tex]

Answer:

2^7

Step-by-step explanation:

2^6/2^4)*2^5=128

2^7=128

What is the inverse function (equation) of f(x) = 6x - 5 ?

Answers

Step-by-step explanation:

Given

f(x) = 6x - 5

f^-1(x) = ?

Let

y = f(x)

y = 6x - 5

Interchanging the roles of x and y we get

x = 6y - 5

6y = x + 5

y = ( x + 5 ) / 6

So therefore f^- 1(x) = (x + 5) / 6

Hope it helps :)❤

Daniel has dinner at a restaurant and the cost of his meal is $28.00. Because of the service, he wants to leave a 20% tip. What is his total bill including tip?

Answers

Answer: answer is $33.60

Step-by-step explanation:

Help with this it’s due today

Answers

A’: (-8,-4)
B’: (4,-8)
C’: (-12,-16)
A (-2,-1)
B (1,-2)
C (-3,-4)

£3.23 + £1.47 =
What is the answer i've tried so many different ones an they never seem to be wright?

Answers

Answer:

£4.7

Step-by-step explanation:

Answer:

£4.7

Step-by-step explanation:

HELP WILL GIVE BRAINLIEST Given an expression can you write an equivalent form of the expression and explain the properties you used?

Answers

Answer:4^-3 could also be written as 1/4^3

Step-by-step explanation:

Negative exponent rule in which the number with a negative exponent gets moved to the denominator.

1/4^3 is the answer your needing

Suppose a city with population 600,000 has been growing at a rate of 4​% per year. If this rate​ continues, find the population of this city in 25 years.

Answers

Answer:

15,600,000

Step-by-step explanation:

We start with our initial population of 600,000. Then multiply that with the rate of 4% (0.04 in decimal, or 1.04 so that the 0.04 is automatically added to the 600,000.)

600,000 · 1.04y = projected populationy = 25600,000 · 1.04(25) = projected populationsimplify!15,600,000 = proejcted population

I don’t understand pls help!!

Answers

Answer:

7.9 m

Step-by-step explanation:

Use the Pythagorean theorem: a²+b²=c²

This formula can be used to solve a side of any right (90°) triangle.

c² is the length of the hypotenuse (the diagonal side of the triangle, opposite to the 90° angle)

So, c = 32m.

Sides a and b are the legs of the triangle, but we only know one side. Plug numbers into the formula:

31² + b² = 32²

961 + b² = 1024 Subtract 961 from both sides to get b² by itself.

b² = 63

√b² = √63  Square root both sides to get b by itself.

b = 7.93725

Answer is 7.9 meters, rounded to tenths place

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