Answer:
a reflection over the line y=-x
Step-by-step explanation:
A man is 23 years old. His sister is 11 years old. How many years ago was the man 3 times older than
his sister ?
Which graph shows that ice cream sales increase when temperatures increase
Answer:
.hh
Step-by-step explanation:
jj
Answer:
B
Step-by-step explanation:
You can see the scatter plot increase as temperature increases
A biased coin has a probability of 0.4 of coming up heads. What is the probability that when flipped one hundred times it comes up heads half of the trials or more. Give answer to at least three decimal points.
Using the binomial probability relation ; the probability that an head is obtained at least 50 times is 0.0271
Using the binomial probability relation :
P(x = x) = nCx * p^x * q^(n-x) p = probability of success = 0.4q = 1 - p = 0.6n = number of trials = 100P(x ≥ 50) = p(x = 50) + p(x = 51) + ...+ p(x = 100)
Using a binomial probability calculator :
P(x ≥ 100) = 0.0271
Therefore, the probability that atleast 50 heads are obtained in the trial is 0.0271
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write a formula, including units, for the surface area.
Answer:
plz mark me as a brainliest plz
help for brainliest and good luck
18 is the correct answer
How to solve this?With solutions
Answer:
C
Step-by-step explanation:
Step 1: Determine the value of x by using [tex]x=tan^{-1}(\frac{\sqrt{3} }{\sqrt{2}} )[/tex]
[tex]x=tan^{-1}(\frac{\sqrt{3}}{\sqrt{2} })=50.7685 degrees[/tex]
Step 2: Substitute x=50.7685 degrees into the original equation
[tex]2cos^{4}(x)-sin(x)=2cos^{4} (50.7685)-sin(50.7685)=0.320-0.7746=-0.4546[/tex]
5 less than two times 'm'
Answer:
[tex]5 < 2m[/tex]
Step-by-step explanation:
Please mark as Brainliest if this answer helped you! :)
(if you need it written in numbers as an expression, I hope this will help! The other answer interpreted it as an inequality, so hopefully one of these gives you the answer you are looking for!)
5 less than two times 'm'
\/
two times 'm' minus 5
\/ \/
2m -5
\/
2m - 5
Choose the scientific notation for 0.01.
O 1x 10-4
O 1x 103
O 1x 10-2
O 1x 101
Answer:
1×10-2
Step-by-step explanation:
10-2 = 1÷100 =0.01×1 = 1× 10-2
A certain chemical the ratio of zinc the copper is 3 of 13 A jar of chemicals contains 377 grams of copper how many grams of zinc does it have
Answer:its 116 grams of zinc
Step-by-step explanation:
If 60 of 200 people in a restaurant have ordered salads, then what % of customers have ordered salad?
Answer:
30%
Step-by-step explanation:
Help I’ll give BRAINLIEST
Step-by-step explanation:
Let's rewrite the original equation as
[tex]y - 2 = 2x + 6 \Rightarrow y = 2x + 8[/tex]
or in standard form, our equation becomes
[tex]2x - y = -8[/tex]
where A = 2, B = -1 and C = -8
(a) The area of a rectangular parking lot is 5964 m².
If the length of the parking lot is 84 m, what is its width?
Answer:
71 m................
area =length *width
5864=84*width
width=5864/84
hence width is 71m
y=2/3x constant of proportionality
Answer:
Looking at the equation, k=23 is our constant of proportionality because 23 is the constant number we multiply x by.
In the equation x² + 64 = 16x, the roots are ____.
Answer:
square roots are x, 8, 4x
Step-by-step explanation:
x^2 square root is x
64 square root is 8
16x square root is 4x
I need it asap fast and I give brainliest to a right answer.
Answer:
hiik
Step-by-step explanation:
rvnlgsudffstdrestdftuisffjhigyhoffyxhcccdfidsudjifg
pls help I will put brainliest
2.7
the number line ticks count by 2 and this is in between
Decide whether the relation defines y as a function of x. Give the domain and range.
x+y<14
Answer:
i think it is like this. < means less than
Step-by-step explanation:
let x be a and let y be any number less than 14.
a + 5 < 14
a + 5 < 14
a + 5-5 < 14-5
a + 0 < 9
a < 9
Directions: Find the slope of the lines graphed below.
1.
2.
we know,
slope = y_2 - y_1/x_2 - x_1
1.
according to the graph given points are,
(2,1) and (0,3)
now,
→ 3 - 1/0 - 2
→ 2/-2
→ -1
therefore, slope of the given graph is -1.
2.
according to the graph given points are,
(-6,2) and (0,1)
now,
→ 1 - (-6)/0-2
→ 7/-2
→ -3.5
therefore, slope of the given graph is -3.5 OR in fraction form it is 7/-2.
3.
according to the graph given points are,
(2,2) and (0,4)
now,
→ 4 - 2/0-2
→ 2/-2
→ -1
therefore, slope of the given graph is -1.
hope this answer helps you dear...take care and may u have a great day ahead!
The radius of a circle with centre O is 5 cm. The lengths of the chords AB and BC are 6 cm and 8 cm respectively. The midpoints of the chords are X and Y respectively. Find the perimeter of the quadrilateral OXBY.
Answer:
Step-by-step explanation:
AB=6 cm
BX=1/2 AB=1/2 ×6=3 cm
BC=8 cm
BY=1/2×BC=1/2×8=4 cm
perpendicular bisector of a chord always passes through the center.
so quadrilateral OXBY is a rectangle.
Perimeter=2(BX+BY)=2(3+4)=2×7=14 cm.
At the gym , Lucy did 12 more pushups than Jeremy. If Jeremy did 25 push-ups how many push-ups did Lucy do.
Answer:
Lucy did 37 Push-up
Given:
Lucy 12 More than Jeremy
Jeremy 25
Step-by-step explanation:
If Lucy did 12 more than Jeremy that given you that It "Addition"
so 12+ 25 = 37
Therefore, Lucy did 37 Push-up.
Which of the following coordinates of points belong to the solution set of the inequality y <2x² +3x - 5?
A.(-3,2)
B.(-2,9)
C.(1,6)
D.(3,1)
E. (-1.5)
Answer:
A , DStep-by-step explanation:
Check the inequality for each point.
For A. (-3,2)
[tex]y < {2x}^{2} + 3x - 5 \\ 2 < {2 ( - 3)}^{2} + 3( - 3) - 5 \\ 2 < 2 \times 9 - 9 - 5 \\ 2 < 18 - 9 - 5 \\ 2 < 4 \\ [/tex]
The inequality is satisfied.
For B. (-2,9)
[tex]y < {2x}^{2} + 3x - 5 \\ 9 < 2 {( - 2)}^{2} + 3( - 2) - 5 \\ 9 < 2(4) - 6 - 5 \\ 9 < 8 - 6 - 5 \\ 9 < - 3 \\ [/tex]
The inequality is not satisfied.
For C. (1,6)
[tex]y < {2x}^{2} + 3x - 5 \\ 6 < {2(1)}^{2} + 3(1) - 5 \\ 6 < 2(1) + 3 - 5 \\ 6 < 2 + 3 - 5 \\ 6 < 0[/tex]
The inequality is not satisfied.
For D. (3,1)
[tex]y < {2x}^{2} + 3x - 5 \\ 1 < {2(3)}^{2} + 3(3) - 5 \\ 1 < 2(9) + 9 - 5 \\ 1 < 18 + 9 - 5 \\ 1 < 22 \\ [/tex]
The inequality is satisfied.
For E. (-1,5)
[tex]y < {2x}^{2} + 3x - 5 \\ 5 < {2( - 1)}^{2} + 3( - 1) - 5 \\ 5 < 2(1) - 3 - 5 \\ 5 < 2 - 3 - 5 \\ 5 < - 6 \\ [/tex]
The inequality is not satisfied.
Check all solutions to the equation. If there are no solutions, check "None."
x = 16
Someone please help!!
Answer:
Its E
Step-by-step explanation:
Determine the slope of the line 8x – 4y - 9 = 0.
О.
O2
03
04
Answer:
The slope in this equation is 2x, so answer is 2.
Step-by-step explanation:
8x-4y-9=0
-8x -8x
-4y-9 = -8x
+9 +9
-4y = -8x+9
Divide by 4 on both side to have y by itself and you get
y = 2x - 9/4
Area of a square is 81cm. Find the perimeter in cm.
Answer:
36 cm
hope it helps have a great day
The location of the
circumcenter of TrIangle ABC is:
A. Point D
B. Point E
C. Point F
Answer:
it'd be F
Step-by-step explanation:
just did it on my acellus
The location of the circumcenter of triangle ABC is at ''Point D.''
What is mean by Triangle?A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.
We have to given that;
The triangle ABC is shown in figure.
Now,
We know that;
The circumcenter of the triangle is the point at which the distance between the vertices with the circumcenter is equal to each other.
In figure ABC;
⇒ AD = BD = CD
So, The circumcenter of triangle ABC is at point D.
Learn more about the triangle visit:
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Bro this my 10th time asking this pls. Someone help me giving brainlist :(
solve pls brainliest
Answer:
a) 52
B)6
Step-by-step explanation:
B) -5+11=6
It's not that hard, you shall know negative signs rules
Find the product of 44.6 and 2.34.
Answer:
104.364
Step-by-step explanation:
Product means multiplication so:
44.6×2.34 = 104.364
HELPPP
Indicate the equation of the given line in standard form, in the equation box below.
The line through (2, –1) and parallel to a line with slope of 3/4.
Find the equation of a line perpendicular to y=2 that contains the point (−5,1).
Answer:
y = -1/2x - 5/2
Step-by-step explanation:
y = 2x – 1
Current slope is 2, perpendicular is opposite inverse which is -1/2.
y-intercept through point (-5, 0):
y = mx + b
0 = -1/2(-5) + b
0 = 5/2 + b
b = -5/2
Use the perpendicular slope and b above to form new equation of line:
y = mx + b
y = -1/2x - 5/2