Answer:
perpendicular lines
Step-by-step explanation:
Lydia has drawn quadrilateral ABCD with diagonal AC . According to her measurements, m∠DAC=m∠BCA and m∠DCA=m∠BAC . Without taking additional measurements, Lydia claims △ABC≅△CDA according to the ASA triangle congruence criteria. Explain why Lydia is correct.
Answer:
Lydia is correct because the ASA criterion for triangle congruence states that if two triangles have two pairs of congruent angles and the common side of the angles in one triangle is congruent to the corresponding side in the other triangle, then the triangles are congruent which would prove her statement correct.
Step-by-step explanation:
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please give the right answer and help, i’ll give brainliest❤️
Answer:
3:4
Step-by-step explanation:
Answer:
9 to 8
Step-by-step explanation:
Kelly saved 4/5% of her allowance. What is this percent expressed as a fraction and as a
decimal?
Fraction:
Decimal:
Serena had 5 pounds of dog food to divide among 8 dogs
at the animal shelter.
If Serena gives each dog the same amount of food, how
many pounds of food will each dog get?
Answer:
.625 pounds per dog
Step-by-step explanation:
divide 5÷8=.625 or 5/8
Answer:
5/8= 5/8 or .625
Step-by-step explanation:
1/8= .125, so 5/8= 6.25
Find rhe equation of the graphed line.
a. y = -x -6
b. y = x + 6
c. y = x - 6
d. y = -x + 6
Answer:
c. y = x - 6
Step-by-step explanation:
This question wants you to find the equation in slope-intercept form, each is y=mx+b, where m is the slope and b is the y-intercept. The first thing to do is find the y-intercept, to do this find the value of y when x equals zero. The way to do this is to look the value of y on the y-axis. In this case, the y-intercept is -6. Then, find the slope; since you are given the graph you can count out the slope. To do this find out how much the y and x values change. On this graph, y increases 1 when x increases 1, so the slope is 1/1 or one 1. So the equation is y=1x-6, which simplifies to y=x-6.
the temperature is -2°C. if the temperature rises by 5°C, what us the new temperature?
Answer: 3 degrees Celsius
Step-by-step explanation: ⬛
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Answer:
The answer required in ratio is: b:c = 9:8
Step-by-step explanation:
We are given:
The ratio a:b = 2:3 and the ratio a:c = 3:4
We need to find the ratio b:c
a:b=2:3 can be written as:
[tex]\frac{a}{b}=\frac{2}{3}[/tex]
Finding value of a by cross multiplying:
[tex]\frac{a}{b}=\frac{2}{3}\\3a=2b\\a=\frac{2b}{3}[/tex]
a:c = 3:4 can be written as: [tex]\frac{a}{c}=\frac{3}{4}[/tex]
Putting value of a and finding b:c
[tex]\frac{a}{c}=\frac{3}{4}\\Put\:a=\frac{2b}{3}\\\frac{2b}{3}}\times \frac{1}{c}=\frac{3}{4} \\Finding\:value\:of\:b/c\\\frac{b}{c}=\frac{3\times 3}{4 \times 2}\\ \frac{b}{c}=\frac{9}{8}[/tex]
So, we get the value of [tex]\frac{b}{c}=\frac{9}{8}[/tex]
The answer required is in ratio so: b:c = 9:8
6 is 15% of what number? *
70
40
45
50
Answer:40
Step-by-step explanation:
URGENT WILL GIVE BRAINLIEST
Step-by-step explanation:
-1&-4 because it is the answer
Answer:
vertex (-3,-1)
Step-by-step explanation:
Name all of the angles that have the same measure as <1
Step-by-step explanation:
angle 5, 3, 7 since they're vertical and alternate interior angles that are all connected to angle 1
2) A carpenter has a sheet of plywood that is 6.85 feet long. A 3.4-foot
piece is cut from one side and 2.5-foot piece is cut from the other side.
How many feet of plywood is left over?
Answer:
0.95? I hope it's correct
What property involves using opposites?
Group of answer choices
Identity Property
Distributive Property
Inverse Property
Commutative Property
Answer:
Inverse property
Step-by-step explanation:
What is the number of pounds for the win bottle
Select the correct answer. Which level of government relies the most on income tax?
Answer:
The Federal government relies the most on income tax.
Step-by-step explanation:
The angle between the generator and the central axis of a double-napped cone is 40°. A plane intersects the central axis at an angle between 40° and 90°. Which conic section is formed?
Answer:
Ellipse
Step-by-step explanation:
From the given information:
Suppose the plane cuts the cone in such a manner that the plane is neither perpendicular nor parallel to the axis and also the angle of intersection is greater than the generator angle.
Then the conic section formed is an Ellipse.
The Conic Section that is formed from the intersection of the central axis at an angle between 40° and 90° will be An Ellipse.
How to transform a Plane?Let us consider that the plane cuts the cone in such a manner that the plane is neither perpendicular nor parallel to the axis and also the angle of intersection is greater than the generator angle.
Thus, we can say that when the plane intersects the double-napped cone in such a manner that the angle between the vertex and the angle is greater than the vertex angle.
Then the resulting conic section formed is an Ellipse.
Read more about Plane Transformation;
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If we assume the average number of teeth lost in the 5-9 group is 7 teeth and the average number of teeth lost in the 10 group is 12 teeth, what is the best estimate of the average (mean) and variance number of teeth lost per year
Answer:
Average = 7.83
Variance = 20.8339
Step-by-step explanation:
Since the average number of teeth lost in years 5-9 was 7 teeth this means that the average was 7 each year. Therefore, to estimate the average of teeth lost per year including all the years then we need to add the average each year and divide by the number of years being included like so...
7 + 7 + 7 + 7 + 7 + 12 = 47 teeth
47 teeth / 6 days = 7.83
Now that we have the mean we can find the variance.
[tex](7-7.83)^{2}[/tex] = 0.6889
[tex](12 - 7.83)^{2}[/tex] = 17.3889
0.6889 + 0.6889 + 0.6889 + 0.6889 + 0.6889 + 17.3889 = 20.8339
Please answer this correctly without making mistakes
Answer:
45 miles and 110 feet
Step-by-step explanation:
1. Convert into feet (1 miles = 5280 feet)
2431 x 5280 = 12835680
2. Add
12835680 + 660 = 12836340
3. Divide
12836340 divided by 54 = 237710
4. Divide
237710 divided by 5280 = 45 r 110
Answer:
45 miles 110 feet
Step-by-step explanation:
16. What kind of angle is shown in the image below?
A. Right
B. Obtuse
C. Straight
D. Acute
Answer: C
Step-by-step explanation: straight line=straight angle
A house that is 30 feet tall casts a shadow that is 50 feet long. A nearby tree casts a shadow that is 75 feet long. HOW LONG IS THE TREE?
Answer:
the tree would be 45 feet tall
Step-by-step explanation:
so the house is 30 feet and 50 feet shadow, if you divide by 2 you can see that every 15 feet gives a 25 foot shadow, since 75-50 is 25 so in turn if the tree is 45 feet tall, it will make 75 foot shadow
Noah and Lin are each trying to solve the equation x^2-6x+10=0.They know that the solutions to x^2=-1 are i and -i but they are not sure how to use this information to solve for x in their equation.Lin knows 36-40 is a negative number and isn’t sure what to do next. Show how Lin can write her solution using i.
Lin's work:
Answer:
x=3+i or x=3-i
Step-by-step explanation:
x²-6x+10=0
(x²-6x+9) + 1 = 0
(x-3)² + 1 = 0
(x-3)² = -1
x-3 = ± √-1 = ± i
x = 3 + i or x = 3 - i
The next step is that L in can write her solution using i be like x = 3 + i or x = 3 - i.
What is an equation?Mathematical phrases with two algebraic symbols on either end of the equal (=) sign are called equations. To illustrate this connection, the expressions just on the left and right are demonstrated to be equivalent to each other. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.
From the given values provided in the question,
x² - 6x + 10 = 0
(x² - 6x + 9) + 1 = 0
(x - 3)² + 1 = 0
(x - 3)² = -1
x - 3 = ±√-1
x - 3 = ± i
x = 3 + i or,
x = 3 - i
To know more about equation:
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Cristina uses a ruler to measure the length of her math textbook. She says that the book is 4/10 meter long. Is her measurement in simplest form? If not, what is the length of the book in simplest form?
Answer:
2/5 meters
Step-by-step explanation:
Bianca ordered t-shirts for her tennis club from a website. Each shirt is $12.50 and Bianca has a coupon for $25 off her total order. What is the cost of Bianca a order is she buys 15 t-shirts
Answer:
$162.5
Step-by-step explanation:
12.50x15= 187.5
187.5-25= 162.5
What Is the area of the trlangle? Enter the answer in the box.
square units
Answer: right
Step-by-step explanation:
Find the slope (or grade) of the treadmill shown.
The grade of the treadmill is___%
Answer:
grade=15%
Step-by-step explanation:
For 2 ft on x-axis it has elevated 0.3 ft on y-axis
m=0.3/2=0.15 ft
grade=m x 100
grade=15%
The probability that it will rain tomorrow is 0.1
it takes 10.4 hours to receive a basic flying license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 9 students and observed that they had a mean of 10.7 hours with a variance of 1.44. A level of significance of 0.1 will be used to determine if the technique performs differently than the traditional method. Assume the population distribution is approximately normal. Find the value of the test statistic. Round your answer to three decimal places.
Answer:
Test statistic (t) = 0.625
Step-by-step explanation:
Step(i):-
mean of the Population(μ) = 10.4 hours
Sample mean (x⁻) = 10.7 hours
Standard deviation of the sample( S) = 1.44
The level of significance (α= 0.1
Sample size 'n' = 9
Degrees of freedom = n-1 = 9-1 =8
Step(ii):-
Test statistic
[tex]t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }[/tex]
[tex]t = \frac{10.7 -10.4}{\frac{1.44}{\sqrt{9} } } =0.625[/tex]
Anne has 5 pints of milk and is planning to make 6 cakes to sell in fundraising. Each cake will require 112 cups of milk. Does she have enough milk to make the 6 cakes? If so, how many cups of milk will be left, and if not, how many extra cups of milk would she need?
Yes she has enough milk; She will have 1 extra cup of milk.
No she does not have enough milk; She will need 1 more cup of milk.
Yes she has enough milk; She will have 112 extra cups of milk.
No she does not have enough milk; She will need 412 extra cups of milk.
Answer:
Option (1)
Step-by-step explanation:
Each cake requires cups of milk = [tex]1\frac{1}{2}[/tex] cups ≈ 1.5 cups
6 cakes will require milk = 6 × 1.5
= 9 cups
Anne has milk = 5 pints
∵ 1 pint = 2 cups
∴ 5 pints = 10 cups
Therefore, Anne has milk = 10 cups
Extra amount of milk Anne has = 10 - 9 = 1 cup
Hence, Answer is yes, she has enough milk. She will have 1 extra cup of milk.
Option 1 will be the answer.
Mathematics worksheet
Answer:
Image attached since I can't type it out
(Btw forgive me for my horrible handwriting D: )
Reasoning:
#4 is a segment which is why it's written like that in the image.
#5 is an angle which is why there is the angle symbol before the PQR
#6 is a line which is why there is a line on top of BY
#7 is an angle which is why there is an angle symbol before LMN
Hope this helped! <3
Answer:
man i did this in like 4th grade. just learn it so it helps you in the future.
Step-by-step explanation:
what set of numbers does -64.1 belong to
Answer:
-64.1 belong to Rational numbers.
Hope it helps!