Answer quickly!
A biologist measures 10 quadrats of an area of 0.10 acre each. If the average number of daisies per quadrat is 8, how many daisies are there total in a 5-acre field?
Find the discriminant and determine the number of real roots for each equation. Show steps.
-3p^2 - 2p = 0
Answer:
discriminant: 4; number of real roots: 2
Step-by-step explanation:
The coefficients a, b and c of this quadratic are {-3, -2, 0}.
Thus, the discriminant b^2 - 4ac is (-2)^2 - 4(-3)(0), or 4.
Because the discriminant is positive, this quadratic has two real, unequal roots.
-3p^2 - 2p can be factored as follows: -p(3p + 2). If we set this expression equal to zero, we can find the roots: {-2/3, 0}
r(x)=−x−7 when x=−2,0, and 5
Answer:
r(0) = -7
r(2) = -5
r(5) = -12
Step-by-step explanation:
30% of __ is 15 help again-
Answer:
50
Step-by-step explanation:
15 is 30% of 50
Please help ASAP rocky!!!
Answer:
The answer is 44
Step-by-step explanation:
Pleaseeeeeeeeeee help!!!
What is 20% of 900 ?
Answer:
180
Step-by-step explanation:
900/ 10= 90x 2= 180
haha very bad explaination but hope it helps <3
Answer:
180
Step-by-step explanation:
First let's write the problem out.
20% of 900 = 20%*900
20% can also be written out as .2
now all you need do is multiply .2 by 900
This should get you 180
Plz help don’t know
What could you do to the equation 100x + 300 = 500 to change it into x + 3 = 5?
Answer:
2+3=5
Step-by-step explanation:
100x + 300 = 500
100x = 500 - 300
100× = 200
100x/100 = 200/100
therefore ^x = 2
x + 3 = 5
2 + 3 = 5
The equation 100x+300=500 is equal to the equation x+3=5.
Given that,
The equation is 100x+300=500
We have to get the equation x+3=5 from the given equation.
What is the equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. In any mathematical equation, we have LHS = RHS (left hand side equals right hand side).
We can solve in 2 methods.
1st method,
Taking the equation
100x+300=500
Divide the equation by 100
100x/100+300/100=500/100
We get
x+3=5
2nd method,
Taking the equation
100x+300=500
Taking 300 to right side
100x=500-300
Subtracting the 500 and 300
100x=200
Taking 100 to right side
x=200/100
Dividing the 200 by 100
x=2
Now,
x+3=5
Taking x to right side
x=5-3
Subtracting 5 and 3
x=2
Therefore, the equation 100x+300=500 is equal to the equation x+3=5.
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A town has a population of 7,000 and grows at 15% every year.what will be the population after 12 years,to the nearest whole number
Answer:
About 20000 will be the answer.
Step-by-step explanation:
First, do 15% of 7000
then multiply the answer with 12.
then add the answer with 7000.
After your answer comes see the nearest whole number. Hence your answer came.
Try it. Hope it helps.
Which of the following is another way to represent 5 2/6 ?
A. 6 8/6
B. 4 8/6
C. 4 12/6
D. 5 6/8
Answer:
4 8/6
Step-by-step explanation:
5 = 30/6
1 = 6/6
5 - 1 = 4
4 6/6 + 2/6
4 8/6
Mark Brainliest please
whats the y-intercept of the graph
Answer:
8
Step-by-step explanation:
it should be because its the only one touching the y-axis
Answer:
(0, 0)
Step-by-step explanation:
The y-intercept is the point where the line crosses the y axis. From looking at the graph, that point seems to be at (0, 0).
Match each number with the value of the number rounded to the nearest hundred. 700800763849738Answer: _________________
Answer:
7008007638496700
Step-by-step explanation:
if you are rounding near the nearest 100th then it would be 7008007638496700
subtract 86.51 and 4.1
1. A circle has a radius of 3 cm. What is
its:
a. Diameter?
b. Area?
c. Circumference?
Answer:
a. 6 (3 x 2)
b. 28.26 (3.14 x 3^2)
c. 9.42 (3.14 x 3)
Hope this helped!!
If ƒ(x ) = x 2 + 1 and g(x ) = 3x + 1, find 2 · ƒ(4).
A. 34
B. 18
C. 65
Answer: The answer would be (B) 18
Step-by-step explanation: Have a brilliant day of learning!
geometry solve for x
Answer:
x = 74 degrees
Step-by-step explanation:
If we assume that this triangle is isosceles, then the sum of the two angles at the bottom is (180 - 32) degrees, or 148 degrees. The angle x is half that, i. e., x = 74 degrees
What is the probability of randomly picking a green tile from a bag containing all green tiles? *
Answer:
100%
Step-by-step explanation:
Picking a green tile from a bag with nothing with green tiles is 100%, because what else could you get
Solve for p:
-9 + p < 15
Answer:
p < 24
Step-by-step explanation:
Given: -9 + p < 15
Add 9 to both sides.
p < 24
what is a slope of a line between the x-axis and y-axis
Answer:
Mercedes, look at the graph i'm attaching... do you see ? what's the slope?
Step-by-step explanation:
Two trains train a interim be weird total of 333 tons. Train hey is heavier than train B.The difference of their weight is 141 tons… What is the weight of each train??
Answer:
Weight of Train A = A = 237 tons
Weight of Train B = B = 96 tons
Step-by-step explanation:
Two trains train a and be weigh a total of 333 tons. Train A is heavier than train B.The difference of their weight is 141 tons… What is the weight of each train??
Let us represent:
Weight of Train A = A
Weight of Train B = B
Our system of Equations is given as:
A + B = 333 tons..... Equation 1
A - B = 141 tons....... Equation 2
We solve using Elimination method
We Add Equation 1 and 2 together to Eliminate B
Hence:
2A = 474 tons
A = 474 tons/2
A = 237 tons
Solving for B using Equation 1
A + B = 333 tons..... Equation 1
237 tons + B = 333 tons
B = 333 tons - 237 tons
B = 96 tons
Therefore:
Weight of Train A = A = 237 tons
Weight of Train B = B = 96 tons
3/8 x 2/6 will mark brainliest
Answer:
[tex] \frac{1}{8} [/tex]
Step-by-step explanation:
[tex] \frac{3}{8} \times \frac{2}{6} \\ \frac{1}{8} [/tex]
Answer:
[tex]\frac{1}{8}[/tex]
Step-by-step explanation:
solve:
[tex]\frac{3}{8}[/tex] × [tex]\frac{2}{6}[/tex] = [tex]\frac{6}{48}[/tex]
simplify:
[tex]\frac{6}{48}[/tex] = [tex]\frac{1}{8}[/tex]
3+3+67+7+4+6+78+68+22+71+100-100=
FIND THE ANSWER
Answer:
329
Step-by-step explanation:
thanks for points have a blessed day
Step-by-step explanation:
329 :) i kinda don't know how to explain
simplify the expression 2(j+1)+j
Step-by-step explanation:
I hope this helps. ans:3j+2
Answer:
3j+2
Step-by-step explanation:
you need to distribute 2(j+1) which gonna lead you to 2j+2 then you add another j which is 3j+2
Explain what it means to have a negative change,
.
Answer:
This means that the rate of change of your position is negative and you have a negative velocity. A negative velocity does not mean that you are slowing down
Step-by-step explanation:
The meaning to have a negative change is, it is decreasing over time.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
We have to explain the meaning to have a negative change.
Hence, We get;
A positive rate of change means that the quantity you are measuring is increasing over time, and a negative rate of change means that it is decreasing over time.
Thus, The meaning to have a negative change is, it is decreasing over time.
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ocupo determinar la posicion relativa de y con respecto a la circunferencia help
Answer:
Step-by-step explanation
what is the length of the diagonal of a 10cm by 15cm rectangle to the nearest whole number
Answer:
18cm (nearest whole number)
Step-by-step explanation:
Let the length of the diagonal be x cm.
Please see the attached picture for the full solution.
DUE ASAP PLZ HELP (brainliest if you get it right)
Part A
PERSEVERE Mei got scores of 76, 80, and 78 on her last three history exams. Write an inequality to determine the score, x, she needs on the next exam so that her average is at least 82.
Part B
Fill in the blanks to complete the sentence.
Solve the inequality.
Mei needs a score of at least ____ on the next exam.
here's the right answer!
A) 76 + 80 + 78 + x = 82 times 4
234 + x = 328
x = 94
B) Mei needs a score of at least 94 on the next exam.
hope you have a good day
1/2(4y + 18) + 2 simplified
Answer: 2y+11
Step-by-step explanation:
I hope this helps<3
Joe walked 12m East and stopped for lunch. After eating he continued walking for 12m East. What is his displacement?
Answer:
24meters
Step-by-step explanation:
Given data
Joe walked 12m East
We are told that Joe continued to walk for another 12m east
Therefore, Joes displacement is
=12+12
=24m
His displacement is 24meters