Answer:
Step-by-step explanation:
2x² + 6x - 5 = 0
D = 36 + 40 = 76 = (2√19)²
[tex]x_{1}[/tex] = ( - 6 - 2√19) / 4 = ( - 3 - √19) / 2
[tex]x_{2}[/tex] = ( - 3 + √19) / 2
12*PLEASEE ANSWER THIS FAST IT'S VERY URGENT IS IT LEFT OR RIGHT WHICH IS THE CORRECT ANSWER!!!
Answer:
Right
Step-by-step explanation:
20 boxes minus 9 boxes
Help and thanks please
Answer:
D i think
Step-by-step explanation:
humph im sad ask me why
Answer:
u ok? hang in there
Step-by-step explanation:
Its okay to feel sad, We all have those moments where we just want to find ourselves near the warm fireplace and find our peace and calming. Don't worry we are here for you!! ✨
PLEASE HELP!!
Use the expression 9i+2(7+3i) to answer this question!
Which property or properties should you use to simplify this expression?
Apply those properties to each term
Answer:
Please check the explanation.
Step-by-step explanation:
Considering the expression
[tex]9i+2\left(7+3i\right)[/tex]
Applying the distributive law[tex]a\left(b+c\right)=ab+ac[/tex]
so the expression becomes
[tex]=9i+2\cdot \:\:\:7+2\cdot \:\:\:3i[/tex]
Group like terms
[tex]=9i+14+6i[/tex]
Add similar elements: 9i+6i=15i
[tex]=15i+14[/tex]
Which is the same as dividing a number by 10?
A, Move the decimal one place to the left.
B, Move the decimal one place to the right.
C, Move the decimal two places to the left.
D, Move the decimal two places to the right.
Answer:
A is the answer
Step-by-step explanation:
Anytime a number is being divided by 10 it moves to the left creating a decimal.Example : 5÷10 = 0.5 , 500÷10 = 50
Anytime a number is being multiplied by 10 the number increases with a 0. Example : 5 × 10 =50
I hope this helped
Answer:
A
Step-by-step explanation:
When it comes to division, we usually move to the left, but multiplication is to the right. Then it is division by 10, which has only one zero, so we move once to the left.
A figure has vertices at K(5, 5), L(5, 3) , and M(1, 1) . After a rotation 90°CCW around point (0, 1) , what are the coordinates of K
Answer:
(-5,5)
Step-by-step explanation:
Please help my cousin do this. She isn't that bright in math.
Answer:
$4.8 for sugar and $25 for butter.
Step-by-step explanation:
Suppose widgit weights produced at Acme Widgit Works have weights that are normally distributed with mean 17.46 grams and variance 375.67 grams. What is the probability that a randomly chosen widgit weighs more then 19 grams?
Answer:
The probability that a randomly chosen widget weighs more then 19 grams is 0.468.
Step-by-step explanation:
X = Widget weights produced at Acme Widget Works
It is provided that X is normally distributed with mean 17.46 grams and variance 375.67 grams.
Compute the probability that a randomly chosen widget weighs more then 19 grams as follows:
[tex]P(X>19)=P(\frac{X-\mu}{\sqrt{\sigma^{2}}}>\frac{19-17.46}{\sqrt{375.67}})[/tex]
[tex]=P(Z>0.08)\\\\=1-P(Z<0.08)\\\\=1-0.53188\\\\=0.46812\\\\\approx 0.468[/tex]
Thus, the probability that a randomly chosen widget weighs more then 19 grams is 0.468.
Math unit rate can someone please help me
Answer: All I know is C is one of them. I’m trying lol
Step-by-step explanation:
Betty took her two daughters out to lunch. Betty's meal was $15.50
and her daughter's meals were $13.45 and $16.75. If Betty is going
to leave a 20% tip, what is the total amount of the meal?
Answer:
$9.14
Step-by-step explanation:
$15.50 + $13.45 + $16.75 = $45.70
x 20%
45.70 100% Cross multiply
45.70 x 20 = 914
914 divided by 100 = 9.14
For the line that passes through the points (0, 2) and (-6, 0), the x-intercept is and the y-intercept is
Answer:
The x-intercept is (-6, 0) and the y-intercept is (0, 2)
Step-by-step explanation:
We are already given points where x = 0 and y = 0
The x-intercept is when y = 0
The y-intercept is when x = 0
So the x-intercept is (-6, 0)
and the y-intercept is (0, 2)
PLSSSS HELP ASAP I AM TIMED. A community garden contains five types of plants. Two of the types are flowers: roses and daisies.The other three types are vegetable plants: cucumbers, bell peppers, and green beans.
Plants in the Community Garden
Plant
Number
Roses
2
Daisies
4
Cucumbers
6
Bell Peppers
5
Green Beans
7
Which statetement is true?
Green bean plants are One-third of the total plants.
The ratio of cucumber plants to flowers is 1:1.
Bell pepper plants are One-third of the vegetable plants.
The ratio of daisy plants to rose plants is 1:2.
Answer:
B
Step-by-step explanation:
I did the test (; on egunity
It is accurate to say that there are 2:1 daisies to rose plants. Because the Daisy plant and the Rose have the numbers 2 and 4, respectively
What is the ratio?It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.
It is given that, A community garden contains five types of plants. Two types are flowers: roses and daisies. The other three types are vegetable plants: cucumbers, bell peppers, and green beans.
Since the number of the Daisly plant and the rose is 2 and 4 respectively, its ratio is,
=Daisy plant: rose
=2:4
=1:2
Thus, it is accurate to say that there are 2:1 daisies to rose plants. Because the Daisy plant and the Rose have the numbers 2 and 4, respectively
Learn more about the ratio here:
brainly.com/question/13419413
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ASAP
During his workouts last week, Allen jogged the same amount of time each day for 6 days. Use the following information to determine the number of minutes Allen jogged each day:
During each workout, he jogged and rode his bike.
He rode his bike for 45 minutes each day.
He worked out for a total of 360 minutes last week.
What is the number of minutes that Allen jogged each day last week? Enter your answer in the box below.
Answer:
15 mins
Step-by-step explanation:
1. figure out how many minutes he rode his bike for (45x6=270)
2. subtract that from the total (360-270=90)
3. divide the total amount he jogged for by the days he jogged for (90/6 = 15)
4. the answer is Allen jogged 15 mins a day for 6 days
Pls Mark Brainliest
The percent of concentration of a certain drug in the bloodstream x hours after the drug is administered is given by K(x) 5x/x^2 + 9. a. Find the time at which the concentration is a maximum. b. Find the maximum concentration.
Given :
The percent of concentration of a certain drug in the bloodstream x hours after the drug is administered is given by [tex]K(x) = \dfrac{5x}{x^2+9}[/tex].
To Find :
Find the time at which the concentration is a maximum. b. Find the maximum concentration.
Solution :
For maximum value of x, K'(x) = 0.
[tex]K'(x) = \dfrac{5(x^2+9)- 5x(2x)}{(x^2+9)^2}=0\\\\5x^2+45-10x^2=0\\\\5x^2 = 45\\\\x = \pm 3[/tex]
Since, time cannot be negative, so ignoring x = -3 .
Putting value of x = 3, we get, K(3) = 15/( 9 + 9) = 5/6
Therefore, maximum value drug in bloodstream is 5/6 at time x = 3 units.
Hence, this is the required solution.
help me plz i have to get an A
Of the 60 people at the beach, 7/12 are wearing sunglasses, How many 7
eople are wearing sunglasses? *
Answer:
the answer is 35
Step-by-step explanation:
Answer:
35 people are wearing sunglasses.
5 sets of 7 people are wearing sunglasses.
Step-by-step explanation:
60 divided by 12
= 5
5 x 7
= 35
35 people
35 divided by 7
= 5 sets of 7 people
Find the length of segment QA when Q(-7,10) and A(3,4).
Answer:
The length of segment QA when Q(-7,10) and A(3,4) is √136 or 11.66 units
Step-by-step explanation:
Given points are:
Q(-7,10) and A(3,4)
Here
[tex](x_1,y_1) = (-7,10)\\(x_2,y_2) =(3,4)[/tex]
The distance between two points is the length of the segment formed by those two points. The distance between 2 points is given by:
[tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Putting the values
[tex]d = \sqrt{(3-(-7))^2+(4-10)^2}\\d = \sqrt{(3+7)^2+(-6)^2}\\d = \sqrt{(10)^2+(-6)^2}\\d = \sqrt{100+36}\\d = \sqrt{136}\\d= 11.66\ units[/tex]
Hence,
The length of segment QA when Q(-7,10) and A(3,4) is √136 or 11.66 units
Which expression is equal to q = 2 × 79?
Answer:
q= 158
Step-by-step explanation:
Suppose you are going to graph the data in the table below. What data should be represented on each axis, and what would be the
appropriate increments?
Reporting periods Sales
d out of 2
Flag
an
Jan-Mar., 2010
$100,000
Apr.-Jun., 2010
$55,000
Jul.-Sep., 2010
$45,000
Oct-Dec., 2010
$110,000
Jan. --Mar., 2011
$330,000
Apr.-Jun., 2011
$800,000
Jul.-Sep., 2011
$242,000
Oct-Dec., 2011
$150,000
Answer:
the months would be the x axis and the numbers would be the y axis and the increments could start at 45k and have to go up to 800k don't forget the years with the months
Geometry: Express the area of each figure as a monomial. I need help with this, anyone?
Answer:
answer 28ab³ I think maybe
The area of the right-angled triangle is represented as the monomial [tex]12a^3b^4[/tex].
Here,
The formula to calculate the area of a right-angled triangle is:
Area = (1/2) * base * height
In this case, the right-angled triangle has a height of [tex]6ab^3[/tex] and a base of [tex]4a^2b[/tex].
Now, let's substitute these values into the formula:
Area = [tex](1/2) * 4a^2b * 6ab^3[/tex]
Now, simplify the expression:
Area = [tex]2 * a^2b * 6ab^3[/tex]
To find the monomial representation, multiply the coefficients and add the exponents of like terms:
Area = [tex]12a^{(2+1)}b^{(1+3)[/tex]
Finally, simplify the exponents:
Area = [tex]12a^3b^4[/tex]
So, the area of the right-angled triangle is represented as the monomial [tex]12a^3b^4[/tex].
To learn more on triangle area click:
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Goods on an invoice have been calculated as £1,495. Total discount has been calculated as £149 and VAT is £269.20. What is the total amount of the invoice?
Answer:
£1,616.2
Step-by-step explanation:
1,496 - 149 = 1347
1347 + 269.20 = 1616.2
Evaluate the integral using the indicated trigonometric substitution. sqrt(x2 − 81)/x dx, x = 9 sec()
C=C' - 81/2 In 9
hope it helps:))
3
. (-3, 5); y = *-4
Write an equation passing through the point and the perpendicular to the given line
Answer:
the line perpendicular: x=-3
Step-by-step explanation:
How do you divide 10.5 divided by2.5?
Answer:
4.2
Step-by-step explanation:
10.5/2.5= 4.2
Move the decimal in 10.5 over one to the right to get 105.0
Answer:
Divide how you normally would, without the decimals, then put the decimal back in its orginal position; this would result in 4.2.
Step-by-step explanation:
Please help. This is a solve for x problem!
Answer:
3/10 = x or 0.3 = x
Step-by-step explanation:
2.1 / x + 1 4/5 = 3 / 10x
1. first cross multiply and solve it normally:
3 (x + 1 4/5) = (2.1) 10x
3x + 5 2/5 = 21x
-3x -3x
5 2/5 = 18x
3/10 = x or 0.3 = x
these questions are kind annoying to solve because of the fractions, so if you can, use a calculator to solve them! its much easier!
hope this helps!
Answer:
x = 3/10 = 0.3
Step-by-step explanation:
{(2.1)/(x+1 4/5)} = 3/10x
x + 1 4/5 = x + 5/5 + 4/5 = x + 9/5
then:
(2.1)/(x+9/5) = 3/10x
10x*2.1 = 3(x+9/5)
21x = 3x+ 27/5
21x - 3x = 27/5
18x = 27/5
90x/5 = 27/5
90x = 27
x = 27/90
x = 3/10 = 0.3
what weight of flowers will each person get if 3 people share 1/3 lb of flower equally??
Answer:
Personally, I think 1/9 lb.
<Plis choose me as brainliest!>
1.3.PS-17
The area of a square poster is 30 in.2. Find the length of
of an inch.
in.
The length of one side of the poster is
(Round to the nearest tenth as needed.)
Answer:
5.48 inches
Step-by-step explanation:
Given that the poster is in the shape of a square.
Area of the square poster = 30 [tex]in^2[/tex]
To find:
The length of side of the poster = ?
Solution:
First of all, let us have a look at the formula for area of a square.
Let the side of square = [tex]x[/tex] inches
Formula:
[tex]Area =Side \times Side[/tex]
Putting the value of the side:
[tex]Area = x\times x\\[/tex]
Putting the value of Area as given in the question statement:
[tex]30 = x^2\\\Rightarrow x =\sqrt{30}\\\Rightarrow \bold{x \approx 5.48\ inches}[/tex]
Whats the quotient of 15.86 divided by 0.65?
Answer:
24.4
Step-by-step explanation:
15.86 /0.65 = 24.4
Find the sum 1 4/5 and 3 2/3
Answer:
82/15 but you can also write it as 5 7/15
Step-by-step explanation:
1 4/5= 27/15 3 2/3=55/15
27/15+55/15= 82/15
82/15 = 5 7/15
Which inequality is represented by this graph?
Answer:
[tex] x \ge -53 [/tex]
Step-by-step explanation:
A solid dot means [tex] \le [/tex] or [tex] \ge [/tex].
The solid dot is on -53.
The shading is to the right, so it is greater than or equal to.
Answer: [tex] x \ge -53 [/tex]
Answer: the last one
Step-by-step explanation: well it is clearly an grater than solusand and it is colored in not doted so its grater than or equal to