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I need help ASAP -screenshot-
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Answer:
3.A
4. 3
Step-by-step explanation:
4 15x20=300/100=3
3.72% vs 75%
3. (A)
4. (A)
Explanation:
I used critical thinking and it was easy.
Graph the equation y= -x^2 +10x-21 on the accompanying set of axes. You must plot 5 points including the roots and vertex. Using the graph, determine the vertex of the parabola
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Answer:
The properties of the parabola equation are
Vertex = (-5, -4)
Roots = (-7, 0) and (-3, 0)
Points = (-2, 5) and (-4, -3)
What are parabola equations?
Parabola equations are second-order polynomial equations and they have the form y = ax^2 + bx + c or y = a(x - h)^2 + k
How to plot the graph of the parabola?
The equation is given as
y = x^2 + 10x + 21
Next, we plot the graph on the coordinate plane
On the graph, we can see the following properties
Vertex = (-5, -4)
Roots = (-7, 0) and (-3, 0)
Points = (-2, 5) and (-4, -3)
Step-by-step explanation:
https://brainly.com/question/28729977
Answer:
Step-by-step explanation:
Vertex = (-5, -4)
Roots = (-7, 0) and (-3, 0)
Points = (-2, 5) and (-4, -3)
Three research departments have 8 ,10 , and 7 members, respectively. Each department is to select a delegate and an alternate to represent the department at a conference. In how many ways can this be done?
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We can conclude that exists 211680 ways.
How many ways can this be done?We know that the three research department is have 8, 10, and 7 members.
We choose a delegate and an alternate to represent the department.
First case: department have 8 members.
So, for a delegate, we have 8 options, and for a alternate 7, so a total of
[tex]8 \times 7 = 56 \ \text{options}[/tex]
Second case: department have 10 members.
So, for a delegate, we have 10 options, and for a alternate 9, so a total of
[tex]10\times 9 =90 \ \text{options}[/tex]
Third case: department have 7 members.
So, for a delegate, we have 7 options, and for a alternate 6, so a total of
[tex]7\times6 = 42 \ \text{options}[/tex]
Therefore, we get:
[tex]56 \times 90 \times 42 = \bold{211680}[/tex]
Hence, we conclude that exists 211680 ways.
For a similar problem about this, please click the link below:
https://brainly.com/question/30958797
For the first department with 8 members, there are 8 choices for selecting a delegate. After choosing a delegate, there remain 7 members, so there are 7 choices for selecting an alternate. Therefore, there are 8 × 7 = 56 ways to select a delegate and an alternate from the first department.
Similarly, for the second department with 10 members, there are 10 choices for selecting a delegate and 9 choices for selecting an alternate. Hence, there are 10 × 9 = 90 ways to select a delegate and an alternate from the second department.
For the third department with 7 members, there are 7 choices for selecting a delegate and 6 choices for selecting an alternate. Thus, there are 7 × 6 = 42 ways to select a delegate and an alternate from the third department.
To find the total number of ways to select delegates and alternates from all three departments, we multiply the number of choices for each department together:
56 × 90 × 42 = 211,680.
Therefore, there are 211,680 ways to select a delegate and an alternate from each department.
Can someone help me with this question!!
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Answer:
8
Step-by-step explanation:
area = bh/2
32.4 yd² = 8.1 yd × s / 2
s = 8 yd
You answer, you win 100 points
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Answer:
[tex]13.5 m^{2}[/tex]
Step-by-step explanation:
area = length × width
= 15m × 9/10m
= 15m × 0.9m
= [tex]13.5 m^{2}[/tex]
Answer:
[tex]\Huge \fbox{Area = 13.5 m^{2}$}[/tex]
Step-by-step explanation:
To find the area of the baseboard, we need to multiply the length by the width:
The length of the baseboard is given as 15 metres. The width of the baseboard is given as [tex]\frac{9}{10}[/tex] metre.To multiply these values, we can convert the width to a decimal by dividing the numerator (9) by the denominator (10):
[tex]\frac{9}{10} = 0.9[/tex]Now we can multiply the length and width:
[tex]\text{Area = Length $\times$ Width}[/tex][tex]\text{Area = 15 m $\times$ 0.9 m}[/tex][tex]\text{Area = 13.5 m^{2}$}[/tex]Therefore, the area of the baseboard is 13.5 m².
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Pls help! Will give brainliest!!
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Considering area (A) of garden as 30 square feet:
30 = x(2x+7)
Now we need to expand it:
x(2x+7) = 2x^2 + 7x
2x^2 + 7x = 30
Adding this into an Algebra calculator gives us 5/2 or 2.5
So x = 2.5
To prove this:
2(2.5) + 7 = 12
14 * 2.5 = 30
(2x+7) x = 30
you can distribute to make this easier
2x^2 + 7x = 30
you can plug this into quadratic formula by setting the equation =0, so:
2x^2 +7x -30 = 0
where 2x^2 = a
7x = b
and -30 = c
you can plug this into your calculator and get an answer of
X = 2.5
Someone help with this one too :(
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Answer :it is the cone and sphere
Look back in the question and look back in math notes
Answer:
1= 4th shape , 2= 3rd shape
Step-by-step explanation:
