Help me with this question please give The Plan and Proof FIRST ANSWER GETS BRAINLIST
The two triangles are congruent by ASA congruence
angle a is equal to angle c as given
angle 1 is equal to angle 2 because they are vertically opposite
ab and bc are equal because b is the mid point of ac
so therfore abd is congruent to cbe by asa congruence
and by cpct we will get that
bd is equal to be
ad is equal to ec
A college radio station sponsors a contest once a week. One resident from a dormitory calls in and tries to answer ten questions correctly. Each correct answer earns the dorm $50, but each incorrect answer reduces the winnings by $25. Last week’s contestant earned $350. How many answers were correct?
Answer:
There were 8 correct answers and 2 incorrect answers.
Step-by-step explanation:
The contest consists of paying $50 for each correctly answered question and subtracting $25 for each incorrectly answered question.
Let's call:
x = Number of correct answers
y = Number of incorrect answers
The resident from a dormitory answered 10 questions last week. This leads to the following condition:
[tex]x + y = 10\qquad\qquad [1][/tex]
Since each correct answer adds $50 and each incorrect answer subtracts $25, the weekly balance is
50x - 25y
The contestant earned $350, thus:
50x - 25y = 350
Dividing by 25:
2x - y = 14
Adding this equation with [1]:
x + 2x = 24
Simplifying:
3x = 24
x = 24 / 3
x = 8
From [1]:
y = 10 - x = 10 - 8
y = 2
There were 8 correct answers and 2 incorrect answers.
A $290 suit is marked down by 20%. Find the sale price.
Answer:
$232
Step-by-step explanation:
Answer:
232
Step-by-step explanation:
Which equation is the slope-intercept form of the line that passes through (6. -11) and is parallel to the graph of y = -2/3x+ 12?
Α. Y=-2/3x-7
B. y=-2/3x-6
C. y= 2/3x-5
D.y= 2/3x-15
Answer:
the answer would be a. As it is the only on parallel that crosses (6,11).
Step-by-step explanation:
HELP!!! ASAP!!! YOU WILL GET MARKED AS BRAINLIEST!!! You expand a rectangular garden so the perimeter is now twice the perimeter of the old garden. The expression 12w+16 represents the perimeter of the new garden, where w represents the width of the old garden.
a. Write an expression that represents the perimeter of the old garden.
b. Write an expression that represents the area of the old garden.
You'll get mark as brainlist
Answer:
A.6w+8
B. 42
Step-by-step explanation:
im assuming the 8 is the length, so 8L
sorry if thats not what you meant
how do you know if the side is hyptenuse or a leg??
Answer:
The legs are the two sides that intersect to form the right angle and the hypotenuse is the side that is diagonal relative to those sides.
Answer:
Use the Pythagorean Theorem to find the unknown side of a right triangle.
· Solve application problems involving the Pythagorean Theorem.
Step-by-step explanation:
The points N, O, P and Q all lie on the same line segment, in that order, such that the ratio of NO:OP: PQ is equal to 1:5:3. If NQ = 9, find OQ.
Answer:
8Step-by-step explanation:
If the points N, O, P and Q all lie on the same line segment, in that order, such that the ratio of NO:OP: PQ is equal to 1:5:3, then;
NO + OP + PQ = 1+3+5 = 9
NQ = NO + OP + PQ = 9
Given
NQ = 9
OP + PQ = OQ
According to the ratio;
OP = 5
PQ = 3
Since OP + PQ = OQ
OQ = 5 + 3
OQ = 8
Hence the measure of OQ is 8
Thirty-nine randomly selected students in a college took the stat final. The sample mean was 68.9 with standard deviation 8.3 . The 99% confidence interval estimate of the population mean is:
Answer:
(65.5775 , 72.2225)
Step-by-step explanation:
Confidence Interval is the range around sample mean, likely to consist the population parameter.
Formula = x' + z (s / √n)
= 68.9 + 2.5 (8.3 / √39)
= 68.9 + 3.3225
(65.5775 , 72.2225)
What is the distributive property of 27x52 (have to show work)
they dont have a distributive 27 is only made of 3s and 52 does not divide by any multiple of 3
Kim creates a model of a building. The scale of her model building is 1 foot to inch. Some of the measurements are
shown in the table
Enter numbers in the empty boxes to correctly complete the table.
Building (feet) Model (inches)
Height
128
Length of Base
Width of Base
80
6.25
Answer:
height: 16 inch
length of base: 10 inch
width of base: 50 feet
Step-by-step explanation:
128*(1/8)=16 inch
80*(1/8)=10 inch
x*1/8=6.25
x=6.25*8=50 feet
The height and length of the model will be 16 in and 10 in respectively, and the width of the building will be 50 feet.
What is scale factor?A scale factor is defined as the ratio between the scale of a given original object and a new object, which is its representation but of a different size (bigger or smaller).
Given that, the scale factor of the building and a model of it is 1/8.
Height of the model = 128/8 = 16 in
Length of the model = 80/8 = 10 in
Width of the model = 6.25*8 = 50
Hence, The height and length of the model will be 16 in and 10 in respectively, and the width of the building will be 50 feet.
For more references on scale factor, click;
https://brainly.com/question/29464385
#SPJ5
answer to 1 and 2 pls!! will mark brainliest if u explain how u got it.
Answer:
ok so the answer to the first is 23. And how you get that is take 1 +7 and add them next you subtract 30 - 7 and get 23.
Step-by-step explanation:
The answer to 2 is 32. And how you get that is you can split 96 into 3 groops and when you do you will get 32 hope this helps.
its 47% kldkfifhnknskdib do sibk jmnbsinslknd
What’s
3.984
+ 17
? Help
Answer:
20.984
Step-by-step explanation:
Just do:
3.984
+17.000
17 plus 3 equals 20 and .984 + 000 is .984
So your answer is 20.984
The length of the base of an isosceles triangle is x. The length of a leg is 2x-4. The perimeter of the triangle is 32 . Find x.
Answer:
X=8
Step-by-step explanation:
2x-4+2x-4+x=32
5x-8=32
Add 8
5x=40
Divide by 5
X=8
What are the x and y intercepts?
Answer:
x intercepts are -1, 1, and 2. y intercept is 4.
hope that helps
Step-by-step explanation:
Which description of a figure and its image match the transformation described by (x,y) → (2x, 2y + 1)?
The figure and its image are similar, but not congruent, and the image has been translated 1 unit up.
The figure and its image are similar, but not congruent, and the image has been translated 1 unit to the right.
The figure and its image are congruent and the image has been translated 1 unit up.
The figure and its image are congruent and the image has been translated 1 unit to the right.
Answer: The figure and its image are congruent and the image has been translated 1 unit to the right.
Step-by-step explanation:
Write the following expression in algebraic form.
cos(arcsin 3x)
Answer:
Step-by-step explanation:
If we consider a triangle with the length of the hypotenuse being equal to 1 and the length of the opposite side = 3x.
However, recall that in a right-angle triangle;
SIne = opposite/hypothenuse
Thus; let the angle facing the opposite be y
Then;
SIn y = 3x/1
Sin y = 3x
Thus, y = arcsin (3x)
Now; to find cos(arcsin 3x)
Recall that:
Cosine = adjacent/hypotenuse
Now, using Pythagoras rule;
[tex]\mathsf{Adjacent \ side = \sqrt{(hypotenuse)^2 -(opposite^2)}}[/tex]
[tex]\mathsf{Adjacent \ side = \sqrt{(1)^2 -(3x^2)}}[/tex]
[tex]\mathsf{Adjacent \ side = \sqrt{1 -9x^2}}[/tex]
cos(arcsin 3x) = cos y = adjacent side/hypotenuse = [tex]\dfrac{\sqrt{1 -9x^2}}{1}[/tex]
cos(arcsin 3x) = [tex]\dfrac{\sqrt{1 -9x^2}}{1}[/tex]
2(9n - 6) + 52 = 2(7 + 8).
A decimal fraction in which a figures is repeated and indefinitely
Answer:
A repeating decimal or recurring decimal is decimal representation of a number whose digits are periodic (repeating its values at regular intervals) and the infinitely repeated portion is not zero.
Step-by-step explanation:
Lisa and Judy read mystery novels. Judy has read three fewer than 5 times as many as Lisa. Judy has read seventeen mysteries. How many has Lisa read? a. 4 mysteries c. 3 mysteries b. 7 mysteries d. 9 mysteries
Answer:
a. 4 mysteries
Step-by-step explanation:
Let the number of books Lisa read be x.
5x-3 = 17
5x = 17 + 3
= 20
x = 20 ÷ 5
x = 4
What is 10x100000
Help please ;(
Answer:
100000
Step-by-step explanation:
10x10=100
100x10=1000
1000x10=10000
10000x10=100000
If 6 bakers want to share a 45-pound bag of flour equally by weight, how many pounds of flour will each person get? Write an equation to solve and show your work.
Answer:
7.5 lbs
Step-by-step explanation:
We want to separate 45 pounds of flour by 6 people, which means we have to divide 45 by 6 to get 7 and 1/2 pounds or 7.5 lbs for each baker.
Answer:er./llllllll;tfph[n7j8ujhgedrsth5rdymu67igh8bn6[nmhylmnhhno9ooilhmny9yhju98y98079huj97
2634tu5yj
Step-by-step explanation:sfrnb kds 3i4huygr4vfb 4rf413qgweb31Y
If x < 0 and y < 0, where is the point (x, y) located?
A.quadrant 1
B.quadrant 2
C.quadrant 3
D.quadrant 4
Answer:
quadrant 4 (both x and y are negative)
Step-by-step explanation:
9. One number is 3 more than twice a second number. Their sum is 27. What is the
larger number?
Answer:
15
Step-by-step explanation:
x+(x+3)=27
2x+3=27
x=12
12+3=15
Larger number is 15, Smaller number is 12
. For every 3 lemons Chrissy buys at a farm stand,
the total cost increases by $1.80.
The constant of proportionality is ?
An equation that relates the total cost, y, and the
number of lemons, x, is y = ? x.
Use the equation you wrote to complete the table.
Step-by-step explanation:
For every 3 lemons Chrissy buys at a farm stand, the total cost increases by $1.80.
cost or 1 lemon = 1.8/3 = $0.6
It means the constant of proportionality is 0.6
If there are x no of lemons, then the total cost will be given by :
y = 0.6x
Hence, this is the required solution.
Answer:
The answer is 0.6
Step-by-step explanation:
A fine fabric was selling for $ 10.50 a yard. Joni bought 2 1/3 yards. How much did she spend?
Answer:
$24.50
Step-by-step explanation:
10.50 * 2 1/3 = 24.50
I would appreciate brainliest, have an amazing day
What is the perimeter of a rectangle whose length is M cm and width is 2 cm
Answer:
2m plus 4
Step-by-step explanation:
mx2=2m
2x2=4
2m plus 4 = 2m plus 4
My plus button isnt working sorry
gus is making 48 ounces of spiced cider if he serves an equal amount to 7 people will each person git more than 1 cup of cider or less than 1 cup
Answer:
Each person will get less than one cup.
Step-by-step explanation:
48 ounces divided by 7 people would allow each person to receive 6.86 ounces. One cup is 8 ounces.
Answer:
i thought cider said spider hahaha
anyways...
Step-by-step explanation
each person gets one cup
What percentage is equivalent to 2/5
Answer:
40 percent.
Step-by-step explanation:
Two-fifths is the same as 4/10, which is the same as 40/100. Since percentages are a part of 100, 40/100 is 40 percent.
The correct percentage that is equivalent to 2/5 would be 40%.
Used the concept of percentage of a number which states that,
A number or ratio that can be expressed as a fraction of 100 or a relative value indicating the hundredth part of any quantity is called a percentage.
Given that the equivalent number is 2/5.
Let us assume that the percentage form of equivalent number = x
Hence, it can be written as,
x% = 2/5
x/100 = 2/5
Cross multiplying,
5x = 2 × 100
5x = 200
Divide 5 on both sides,
x = 200/5
x = 40
Therefore, 40% is equivalent to 2/5.
To learn more about the percent visit:
https://brainly.com/question/24877689
#SPJ6
Calculate: 8 hours (hrs) = minutes
Answer:
480
Step-by-step explanation:
just looked up 8 hours to minuets
Answer:
the answer is 480 minutes :)