Answers
Step-by-step explanation:
Actually, ∠BDA＋∠BDC=180°
2∠BDA= 180°(CPCTC)
∠BDA= 90°
This is how BD is perpendicular to AC
Related Questions
The China Company offers a trade-discount rate that is 4 times the complement of the trade-discount rate. If the list price is $58.75, what is the trade discount? What is the net price?
Answers
Answer: See explanation
Step-by-step explanation:
Since the complement is the difference between 100% and discount rate. Since the China Company offers a trade-discount rate that is 4 times the complement of the trade-discount rate. Therefore, the discount rate will be 80% and the complement 20%.
Therefore, the trade discount will be:
= List price × Trade discount rate
= $58.75 × 80%
= $58.75 × 0.8
= $47
Net price = List price - Trade discount
= $58.75 - $47
= $11.75
help please
Marcie heated a beaker of water in science class. The scatter plot shows the temperature (y), in degrees Celsius, of the water based on the number of minutes (x) she heated the water.
Part A: The line of best fit for this data is
y = 5.3x + 23. Use this equation to make a conjecture about the temperature of the water in the beaker if heated for 6 minutes.
A.
The water will be about 71⁰C.
B.
The water will be about 55⁰C.
C.
The water will be about 32⁰C.
D.
The water will be about 50⁰C.
Part B: What is the y-intercept in the line of best fit? What does the y-intercept represent in the scatter plot?
A.
5.3; the amount the temperature increases each minute
B.
5.3; the temperature of the water before it is heated
C.
23; the amount the temperature increases each minute
D.
23; the temperature of the water before it is heated
Answers
Answer:
Part AGiven function
y = 5.3x + 23The value of y at x = 6:
y = 5.3*6 + 23 = 54.8° CThe closest choice is :
B. The water will be about 55⁰CPart BThe y-intercept is the value of y when x = 0
y = 5.3*0 + 23 = 23° CThis is the initial temperature at zero minute time, before heating is applied.
Correct choice is:
D. 23; the temperature of the water before it is heatedWhat is the solution of 3x + y = 9 and 3x - 5y = 15?
Answers
Answer:
(10/3, -1)
Step-by-step explanation:
So there are two different ways.
First you could address for y and fitting it into the number cruncher. one condition for y1 and another for y2. At that point go second follow and press 5 and afterward press enter multiple times to discover the convergence.
the subsequent path is to tackle by hand. I would recommend address the primary condition for y and attachment the condition tackled for y into the other condition. so y = - 3x + 9 and 3x-5y=15. At that point you could do 3x - 5(- 3x+9) = 15. At long last address for x and plug in x into the two conditions to check whether you get a similar y esteem.
The appropriate response ought to be (10/3, - 1)
Answer:
x = 3 1/3, x = -1.
Step-by-step explanation:
3x + y = 9
3x - 5y = 15
Subtract second equation from the first to eliminate the 3x :
3x - 3x + y - (-5y) = 9 - 15
6y = -6
y = -1.
Plug y = -1 in first equation:
3x + -1 = 9
3x = 10
x = 10/3 = 3 1/3.
AB is a diameter in a circle whose centre is the origin where A =(2,0) then B=
Answers
Answer:
(-2,0)
Step-by-step explanation:
Identify the vertex of the parabola
Options:
A. (-1,0)
B. (0,-1)
C. (0,1)
D. (1,0)
Answers
D. (1, 0)
Explanation:
The vertex of a parabola would be the turning points, so the bottom of the U or the top of an n.
In this case, the vertex hits the x-axis, so the answer would be the point where it hits.
a little helps? frvvrfew3
Answers
Answer:
Step-by-step explanation:
x ≤ 165
Hope that helps!
A man traveled 108 km at an average speed of 72 km/h. He returned at an average speed of 54km/h. What was his time for the whole journey?
Answers
108/54= 2
2+1.5=3.5
plz help on this one
Answers
Answer:
I beleive is it B "The domain is the set of real numbers great then 2."
Answer:
a
Step-by-step explanation:
my aunt is a teacher she told me the answer
find the 15th term of the arithmetic sequence 2x+2, 8x-3, 14x-8,...
Answers
Answer:
a₁₅ = 86x - 68
Step-by-step explanation:
The nth term of an arithmetic sequence is
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 2x + 2
d = a₂ - a₁ = 8x - 3 - 2x - 2 = 6x - 5 , then
a₁₅ = 2x + 2 + 14(6x - 5)
= 2x + 2 + 84x - 70
= 86x - 68
A toy train set has a circular track piece. The inner radius of the piece is 6 cm. One sector of the track has an arc length of 33 cm on the inside and 55 cm on the outside. What is the width of the track?
Answers
Answer:7cm difference
Step-by-step explanation:when the circumference is 55 the diameter is 17 when the circumference is 33 the diameter is 10
17-10=7
Answer:4
Step-by-step explanation:
Solve for x. Round your answer to the nearest tenth (0.1)
Answers
Answer:
[tex]x\approx 7.0[/tex]
Step-by-step explanation:
Since we are given a right triangle, we can use right trigonometric ratios.
x is the opposite side to our angle. 10 is the adjacent side to it. Thus, we can use the tangent ratio:
[tex]\displaystyle \tan(\theta^\circ)=\frac{\text{opposite}}{\text{adjacent}}[/tex]
Substitute:
[tex]\displaystyle \tan(35^\circ)=\frac{x}{10}[/tex]
Solve for x:
[tex]x=10\tan(35^\circ)[/tex]
Use a calculator:
[tex]x=7.0020...\approx 7.0[/tex]
x=7 yards
Answer:
Solution Given:
Opposite = x
base=10yards
and angle is 35°
we know that
relationship between opposite and base is given by Tan angle
so
Tan 35°= opposite/base
Tan 35°*10=x
x= 7.002
x≈7 yards
Aubree invested $27,000 in an account paying an interest rate of 0.0825% compounded monthly. Addison invested $27,000 in an account paying an interest rate of 0.08625 % compounded continuously. After 20 years, how much more money would Addison have in her account than Aubree, to the nearest dollar?
Answers
Answer:
A = $27,445.50
Step-by-step explanation:
Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 0.0825%/100 = 0.000825 per year.
Solving our equation:
A = 27000(1 + (0.000825 × 20)) = 27445.5
A = $27,445.50
The total amount accrued, principal plus interest, from simple interest on a principal of $27,000.00 at a rate of 0.0825% per year for 20 years is $27,445.50.
Answer: $11741
Step-by-step explanation:Rate 1: 8
4
1
%=8+1/4=
\,\,8.25\%\rightarrow 0.0825
8.25%→0.0825
\text{Rate 2: }8\tfrac{5}{8}\%=8+5/8=
Rate 2: 8
8
5
%=8+5/8=
\,\,8.625\%\rightarrow 0.08625
8.625%→0.08625
\text{Calculate Final Amount for Aubree}
Calculate Final Amount for Aubree
\overline{\phantom{\text{Calculate Final Amount for Aubree}}}
Calculate Final Amount for Aubree
\text{Compounded Monthly:}
Compounded Monthly:
A=P\left(1+\frac{r}{n}\right)^{nt}
A=P(1+
n
r
)
nt
P=27000\hspace{35px}r=0.0825\hspace{35px}t=20\hspace{35px}n=12
P=27000r=0.0825t=20n=12
A=27000\left(1+\frac{0.0825}{12}\right)^{12(20)}
A=27000(1+
12
0.0825
)
12(20)
A=27000(1.006875)^{240}
A=27000(1.006875)
240
A=139796.9278
A=139796.9278
\text{Calculate Final Amount for Addison}
Calculate Final Amount for Addison
\overline{\phantom{\text{Calculate Final Amount for Addison}}}
Calculate Final Amount for Addison
\text{Compounded Continuously:}
Compounded Continuously:
A=Pe^{rt}
A=Pe
rt
P=27000\hspace{35px}r=0.08625\hspace{35px}t=20
P=27000r=0.08625t=20
A=27000e^{0.08625(20)}
A=27000e
0.08625(20)
A=27000e^{1.725}
A=27000e
1.725
A=151538.0678
A=151538.0678
\text{How much more money Addison has:}
How much more money Addison has:
151538.0678-139796.9278
151538.0678−139796.9278
what is the value of y in the triangle
Answers
Answer:
y ≈ 6.7
Step-by-step explanation:
Using the sine ratio in the right triangle
sin26.5° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{y}{15}[/tex] ( multiply both sides by 15 )
15 × sin26.5° = y , then
y ≈ 6.7 ( to 1 dec. place )
Here is a triangular prism.
A triangular prism, the triangle has base 6 centimeters, sides 5 centimeters each, and height 4 centimeters perpendicular to the 6 centimeter base. The prism has height 10 centimeters.
What is the volume of the prism, in cubic centimeters?
Answers
33 views
Related Questions (More Answers Below)
Which is a graph of a proportional relationship? NO BITLY ITS A SCAM I KNOW IT
Answers
Answer:
c
Step-by-step explanation:
whats the area of this square help me, please
Answers
Answer:
The area is 36m^2
Step-by-step explanation:
6×6=36
Answer:
6 x 6 = 12
Step-by-step explanation:
area is length x width and all sides on a square are congruent ( so all of the sides are 6)
Find the volume of this composite figure.
[?] cubic centimeters
2 cm
2 cm
2 cm
2 cm
5 cm
5 cm
11 cm
Answers
Answer:291
Step-by-step explanation:
Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height.
hoped this helped.
Help ASAP I’ll mark you as brainlister please HELPP ik crying I feel so useless pleasee
Answers
Answer:
439.8 ft²
Step-by-step explanation:
Write the sentence as an equation.
35 is equal to 92 less than c
Answers
(I think, hope this helps!)
Find the value of x.
Answers
Answer:
34
Step-by-step explanation:
-6x^2-5x-5=
−6x
2
−5x−5=
\,\,-4x^2
−4x
2
Answers
Answer:
what is the question? it's not clear
If x = 4, y = 3, z = -5, then evaluate: z - z + x - y
Answers
1
Explanation:
z - z + x - y
-5 - -5 + 4 - 3
-5 + 5 + 4 - 3
4 - 3
1
A candy store makes chocolate bars in large quantities. To make this large amount, a chocolate
maker weighs 6 identical bricks of chocolate plus a 3 pound brick for a recipe that calls for 27
pounds of chocolate.
Answers
answer would be the bricks are each 24 pounds
I will give brainliest to whoever gives correct answer first!
A short term loan of £60000 is taken for 15 weeks. Simple interest is charged at 17.5% p.a.
How much needs to be repaid altogether?
Answers
Answer:
Kahe be kaha se ba see u online ba hahahaha
Answer:
$ 100,000,000,000 is required to repay
a(3x - 8) = b - 18x
Find the value of a
find the value of b
Explain how the value of a and b you got makes the equation true
Answers
Step-by-step explanation:
a(3x-8)=b-18x
TRANSPOSE
a(3x +18x)=b+8
a(21x)=b+8
Explain relationship between x # 2 and the factor x - 2.
Answers
Answer:
x#2 and x-2 is the same
Step-by-step explanation:
Which data set has a variation, or mean absolute deviation, similar to the data
set in the given dot plot?
Answers
Answer:
d
Step-by-step explanation:
I took the test .......................
Sara's mother has bought 90 lollipops and 105 pencils for goody bags for Sara's birthday. What is the largest number of goody bags that Sara's mother can make so that each goody bag has the same number of lollipops and the same number of pencils?
All lollipops and pencils should be used for the goody bags.
Answers
Answer:
90 because you have one lollipop in each bag and then your will have 15 dollars left
Step-by-step explanation:
Draw BC that divides ABD
into two smaller angles.
Measure each angle. Solve
this problem any way you
choose.
Answers
Answer:
Attached below is the missing figure
answer : ∠ABD = ∠AbC + ∠ CbD
Step-by-step explanation:
when Line BC is drawn to divide ∠ABD equally
solving each angle :
∠ABD > ∠AbC also angle
∠ABD > ∠ CbD
∴ ∠ABD = ∠AbC + ∠ CbD
assuming ∠B = 60°
therefore ∠b = 60 / 30 = 30°
I NEED HELPP PLS!!!!!!!!!!!!!!!!!!!
Answers
Answer:
270
Step-by-step explanation:
The formula for finding the area of a triangle is base · height ÷ 2, or [tex]\frac{bh}{2}[/tex]
After plugging in the numbers given to the formula, we find that the area of the triangle is 27.
Then to account for the length, we multiply the area of the triangle by 10.
This gets us to 270.