ACD is a triangle and B is a point on AC.
BC = 10cm
Angle ACD = 770 Angle BDC = 26°
Angle DAC = 40°
(a) Find the length of BD
(b) Find the size of angle ABD
(c) Find the length of AD
Answer:
< ABD
Step-by-step explanation:
<ACD=770<BDC=26<DAC=40 then. <ABD=770+26+40= 796+40= 836Graph the line
y=-4x+2
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Answer:It would be -4 across and go two up
Step-by-step explanation:
Answer:
It would be -4 across and go two up
Step-by-step explanation:
write your answer as a fraction or as a whole or mixed number 5 3/4 times 2 1/3
Answer:
13 5/12
Step-by-step explanation:
Step-by-step explanation:
5 3/4 X 2 1/3
=23/4 X 7/3
=161/12
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On two examinations, you have grades of 87 and 89. There is an optional final examination, which counts as one grade. You decide to take the final in order to get a course grade of A, meaning a final average of at least 90.
What must you get on the final to earn an A in the course?
Answer:2
Step-by-step explanation:
Answer:
You must get at least a 94
Step-by-step explanation:
94 + 89 + 87 = 270
270 / 3 = 90
A zoologist is interested in whether climate affects how high kangaroos can jump. In a random sample of gray kangaroos from an Australian forest, he found the mean jump height was x¯=286 inches with a margin of error of 15 inches.
Complete question :
A zoologist is interested in whether climate affects how high kangaroos can jump. In a random sample of gray kangaroos from an Australian forest, he found the mean jump height was x¯=286 inches with a margin of error of 15 inches.
Construct a confidence interval for the mean jump height of gray kangaroos.
Answer:
(271, 301)
Step-by-step explanation:
Given that:
Mean (x¯) = 286
Margin of Error = 15 inches
The confidence interval :
(Mean - Margin of Error), (mean + margin of error)
(286 - 15), (286 + 15)
(271, 301)
Hence confidence interval equals : (271, 301)
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choose two rules.
Answer:
they both have a pattern and different shapes
Step-by-step explanation:
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Math inequality help
A is what percent of B?
A = 2 qt, B = 2 gal
Step-by-step explanation:
4qt=1gal
8qt=2gal
percent of b=a
x%times b=a
x%=a/b
x%=2/8
x%=1/4=25%
answer" 25%.
Consider that x = 5 and y = 7. Which statement is true about x + y? A) The sum of x and y is a rational number. B) The sum of x and y is an imaginary number. C) The sum of x and y is an irrational number. D) The sum of x and y is neither rational nor irrational.
Answer:
The answer is 12
Step-by-step explanation:
because 7 plus 5 is 12
Last one pls help me
Answer:
√89
Step-by-step explanation:
I assume you have to find the short cut, right?
5² + 8² = 25 + 64 = 89 = ( √89 )²
What transformation moves Frame 1 to Frame 2?
A) Translation
B) Rotation
C) Reflection
D) Dilation
this is one thing in math I can't figure out.
Answer:
12/9 and 4/3... Hit it in the calculator
Tai’s baby brother weighs 3,745 grams. What is his weight in kilograms?
A. 0.3745 kg
B. 3.745 kg
C. 37.45 kg
D. 374.5 kg
What is the equation in slope intercept form of the line that passes through the points (-4, 47) and (2, -16)?
Answer:
slope intercept form- y= -21/2x +5
Point slope form= y-47=-21/2 (x+4)
Step-by-step explanation:
Problem D: PRABG4G2
Which one doesn't belong? Explain your reasoning.
A. 5 miles in 15 minutes
B. 3 minutes per mile
C. 20 miles per hour
D. 32 kilometers per hour
Answer:
D.
Step-by-step explanation:
is 2/5 a rational number , irrational number, whole number , or integer?
Answer:
Rational number
Step-by-step explanation:
An irrational number is like pi, something that you can never write down completely.
2/5 is not a whole number, or an integer because it's a fraction of a number.
The elevation of a toy glider changes by -19.5 centimeters in 3 seconds.
What is the rate of the toy glider's change
in elevation?
Answer:
Basically do -19.5 divided by 3
The answer is -6.5
Step-by-step explanation:
Hope that helps :)
The rate of change in elevation is approximately -6.5 centimeters per second.
What is division?Math operations include division as one of its types. This technique involves splitting the phrases or numbers into the same amount of components.
To find the rate of change in elevation, we need to divide the change in elevation by the time it took to change.
The change in elevation is -19.5 centimeters (we use a negative sign to indicate the decrease in elevation).
The time it took to change is 3 seconds.
Therefore, the rate of change in elevation is:
rate of change = change in elevation / time
rate of change = -19.5 cm / 3 sec
rate of change ≈ -6.5 cm/sec
So the rate of change in elevation is approximately -6.5 centimeters per second.
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Tak
1.
Set up, but do not solve, an equation to
determine the value of x in the diagram
below.
3x-35
4x+40
Help please and please explain
Answer:
1st question example. all you have to do is write ∠XV, ∠VW, ∠WX
Step-by-step explanation:
the ∠ means the angles. so each angle has a degree. Just list them shortest angle to longest angle.
-(-2-n) simplify please
Answer:
2 - n
Step-by-step explanation:
Subtract a negative is the same thing as adding a positive, so -(-2 - n) is the same thing as 2 - nWhat we did there was cancel out the two minus signs, and formed a positive.I hope this helps!
A local bookstore tracked the type of payments people make at their store. Out of 100 people, 40 paid with cash, 55 paid with a credit card and 5 used a gift card. Based on this information, what is a reasonable prediction of the number of people paying with cash if they had 600 customers?
Answer:
Cash = 240, Credit = 330, Gift = 30
Step-by-step explanation:
We know from this the precentage of people using different payment methods
Cash = 40/100 = 40%
Credit card = 55/100 = 55%
Gift card = 5%
We can then find the number of people using each method regardless of total amount of people
Cash = 40% * 600 = 240
Credit = 55% * 600 = 330
Gift card = 5% * 600 = 30
Total = 240 + 30 + 330= 600
Answer:
240
Step-by-step explanation:
Set up a proportion. Out of 100 people, 40 people paid with cash. Out of 600 people, x people paid with cash.
[tex]\frac{40}{100} =\frac{x}{600}[/tex]
Cross multiply and solve for x.
[tex]24000 = 100x\\24000/100=100x/100\\240 =x\\x=240[/tex]
240 customers paid with cash.
Conocido popularmente como el Lanzón, es una escultura elaborada por la cultura Chavín de Perú. Este gran monolito data, aproximadamente, del año 1000 a. C. y está situado en el Viejo Templo del centro religioso y ceremonial de Huantar.
Cierto día en una visita cultural, Pedro decide representar el Lanzón Monolítico con una escala de 1:103 cuya medida es de 4,41 cm.
Teniendo en cuenta los datos de la situación. ¿Cuánto mide la altura real exacta del Lanzón en metros?
Answer:
La altura real del Lanzón Monolítico es de 453.23 centímetros, o 4.53 metros.
Step-by-step explanation:
Dado que la representación a escala del Lanzón Monolítico mide 4,41 centímetros, y que dicha escala tiene un valor de 1:103 respecto de la medida real de la escultura, para representar la altura real de la misma se requiere realizar el siguiente cálculo:
1 = 4,41
103 = X
(103 x 4,41) / 1 = X
454.23 = X
Por lo tanto, la altura real del Lanzón Monolítico es de 453.23 centímetros, o 4.53 metros.
Which graph represents a function?
Ay
ny
ty
Answer: it would be the fourth one with the line going straight across the top
Step-by-step explanation: To use the vertical line test, take a ruler or other straight edge and draw a line parallel to the y-axis for any chosen value of x.
If the vertical line you drew intersects the graph more than once for any value of x then the graph is not the graph of a function.
The fourth graph represents a function as per the vertical line test.
To determine the function:
Simply draw a vertical line through the graph to find the number of times the function's graph is intersected by the vertical line to determine this.
The graph is said to represent a function if the vertical line only crosses it once at any given location on the graph.
A function is a relationship between a number of inputs and outputs. A function is an association of inputs where each input is coupled with exactly one output.
There is a range, co-domain, and domain for every function.
As per the given graphs,
the first three graphs do not represent a function.
only the fourth graph represents a function.
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John completed 24 math problems in 6 minutes. How many does he complete per minute
Answer:
it would take him a minute to complete 4 problems
Answer:
4 problems per minute.
Step-by-step explanation:
Divide 24 by 6 and you would get 4.
Check: 6 x 4 = 24
6, 12, 18, 24
Hope this helps!
~Jerc~
5x - 2y = -26
-7x + 4y = 40
Show your work?
Answer:
x = -4, y = 3
Step-by-step explanation:
In one equation (let's use the top one), solve for one of the variables (let's solve for y first).
5x - 2y = - 26 --> -2y = -5x - 26 --> y = (5/2)x + 13
Now, substitute ((5/2)x + 13) in for y in the second equation.
-7x + 4((5/2)x + 13) = 40 --> -7x + 10x + 52= 40 --> 3x = -12 --> x = -4
Then, subtitute that in to one of the equations.
5(-4) - 2y = -26 --> -20 - 2y = -26 --> -2y = -6 --> y = 3
Use inductive reasoning to predict the next line in this sequence of computations. Then use
a calculator or perform the arithmetic by hand to determine whether your conjecture is
correct.
9.3+5 = 32
99.3 + 5 = 302
999. 3+5 = 3002
9999.3+5 = 30002
Make a conjecture by predicting the correct numbers in the line below.
0-3+5 -0
Is the conjecture correct?
O A. Yes
OB. No
Answer and explanation:
Inductive reasoning is a method of reasoning whereby conclusion of an argument is based on specific observations or evidence that forms the premise of the argument. Inductive reasoning moves from observations to general conclusion unlike deductive reasoning.
B. The conjecture 0-3+5 -0 is incorrect
Given the above sequence of computations, we use inductive reasoning to predict the next computation
The correct next conjecture is
99999.3+5= 300002
Ms. Fritze can eat 8 apples in 15 minutes. How long does it take her to eat 16 apples at the same rate?
Answer:
30 minutes it’s just the numbers of Apple times 2
Step-by-step explanation:
Yul has lunch at a restaurant. If his bill was $14.50 and Yul wants to leave a 20% tip, what is the amount he should leave for the tip? What is the total amount for his meal plus tip?
Answer:
Yul has lunch at a restaurant. If his bill was $14.50 and Yul wants to leave a 20% tip, what is the amount he should leave for the tip?
Yul should leave 20% tip of
14.50 * 0.20 = 2.9
what is the slope of the line that passes through the points (2,-3) and (-2,5)
Answer:
-2
Step-by-step explanation:
m = 5-(-3) / -2-2
m = 5+3/-4
m = 8/-4
m = 2/-1
m = -2
Can someone help me with this question please !!! Danica is saving money to buy a used car in six months. She needs to save $1500 for a down payment in order to be able to finance the rest. She gets paid $180 per week at her part-time job. How much money will she need to save out of every weekly paycheck to reach her savings goal of $1500 in six months? Show the calculations:
Answer:
She will have to work at least 83 times.
Step-by-step explanation:
Divide 1,500 by 180 and then to check answer multiply 180 with 83.