Answers
Answer:
15) m∠A = 21°, m∠B = 125°, m∠C = 34°
16) m∠J = 48°, m∠K = 57°, m∠L = 75°
Explanation:
15) m∠A is thirteen less than m∠C, so if you were to translate that into numerical terms, it would be (x-13). m∠B is eleven less than four times m∠C, so that would be (4x-11). Because the angles of a triangle sum up to 180°, the equation for this scenario would be (x-13)+(4x-11)+x=180. (X is a variable for m∠C. Add all the like terms to get 6x-24=180. Add 24 to both sides to get 6x=204. Divide 6 on both sides to get x=34. Now that we know m∠C, we can substitute 34 into x to get m∠A as 21° and m∠B as 125°.
16) m∠K is 9 more than m∠J, which is (x+9). m∠L is 21 less than twice m∠J, which is (2x-21). Again, a triangle's angles sum up to 180°, so the equation would be (x+9)+(2x-21)+x=180. Add the like terms to get 4x+(-12)=180. Add 12 to both sides to get 4x=192. Divide 4 on both sides to get x=48. Substitute 48 for x to get m∠K = 57° and m∠L=75°.
Related Questions
A student has heard that spinning pennies on a table, rather than flipping them in the air, results in tails side up 65% of the time. If this is true, what is the probability that a student who spins 4 pennies will have them all land tails side up? 0.0150 0.1785 0.8215 0.9850
Answers
so I believe it is C 0.8215
The probability is 0.1785
What is probability?The study of how likely certain events are to occur is known as probability. In its simplest form, it is concerned with the fall of a game's cards or the roll of a dice. However, probability is also essential to life and science as a whole. Probability is used, for example, in weather forecasting and figuring out how much your insurance premiums will cost.
Given probability of tail by spinning a coin is 65% = 0.65
p(t) = 0.65 and p(h) = 0.35
where h= head and t= tail
coin spins 4 time
p(t) for first time = 0.65
p(t) for second time = 0.65 x 0.65 =0.4225
p(t) for third time = 0.65 x0.65 x 0.65 = 0.274
p(t) for fourth time = 0.65 x 0.65 x0.65 x 0.65 = 0.178
Hence probability that a student who spins 4 pennies will have them all land tails is 0.178
Learn more about probability;
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Rich bought 5 cupcakes and one pie. He knows his total bill is $13.14 and knows the pie was
$6.89. How much is the cost of one cupcake?
Answers
$6.25
Take the total and subtract the amount of money from the pies to get the amount for cupcakes
Which expression is equivalent to (6 * p ) + 3? *
Answers
Answer:
What are the other choices
Step-by-step explanation:
Don’t mind my answer...it’s wrong pls help
Answers
Answer:
try 8
Step-by-step explanation:
\begin{aligned} f(x)&=x^2 \\\\ g(x)&=(x - 6)^2 \end{aligned}
f(x)
g(x)
=x
2
=(x−6)
2
We can think of ggg as a translated (shifted) version of fff.
Complete the description of the transformation.
Use nonnegative numbers.
To get the function ggg, shift fff
by
units.
Answers
Answer:
6.2
Step-by-step explanation:
khan
In which diagram do <1 and <2 appear to be vertical angles?
Answers
is 4 to 7 the same as 7 to 4? Explain why or why not
Answers
They are not the same
The reason why they arent that same is bc they both are in different orders i hope this helps u and may i get brainliest? <3
7n +2 –(2n +7) pls help I will give you 15 points
Answers
Answer:
5n -5
Step-by-step explanation:
7n +2 –(2n +7)
7n +2 -2n -7
5n -5
Please help!!! I will give brainliest and 50 points
The question is attached below
Answers
Answer:
1 + ln 2 - ln x
Step-by-step explanation:
ln ( 2e /x)
We know that ln ( a/b) = ln ( a) - ln (b)
ln (2e) - ln (x)
We also know that ln ( a*b) = ln a + ln b
ln ( 2) + ln e - ln x
We know that the ln e = 1
ln 2 + 1 - ln x
Changing the order
1 + ln 2 - ln x
Jeremy makes a drawing of a walkway shaped like three rectangles. The total area of the walkway is 24 square meters. What is the area of the smallest rectangle in the walkway?
Answers
Answer:
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
have a nice dayyy!! thx for points
Martha rented a sedan at a cost of $21.25 a day for three days. She drove 980 miles at 25 cents a mile. Gas cost $63.45 what was the cost per mile
Answers
Answer:
38 cents per mile
Step-by-step explanation:
Let us first calculate the total expenditure by Martha
= 21.25*3= $ 63.75
Cost of gas =$ 63.45
Therefore cost per mile = 127.2/980= 0.1297+0.25= $0.3797 or 38 cents per mile
twice a number when described by 7 gives 45 . find the number. and also who wants to talk im bored
Answers
Answer:
Answer
Let the number be x.
twice =2x
When it is decreased by 7 we get the following equation:
2x−7=45
⇒2x=45+7
⇒2x=52
⇒x=252
∴x=26
The number is 26.
Answer:
g
Step-by-step explanation:
Plz help i will give the first person with the correct answer branliest (show work)
Answers
no
explanation:
-17/-40 = + 0.425
- both negatives cancel out making the answer positive, thought it is the same number, negative and positive are on two different sides of the spectrum.
- conclusion: No
When looking at a rate table for supplemental term life insurance, what are the rates based on?
a. where the insured was born
b. the marital status of the insured
c. where the insured lives
d. the age of the insured
Answers
Answer:
d. the age of the insured
Step-by-step explanation:
The primary unit for figuring out a life insurance rate is the rate per thousand
pls answer help this is due today and i need the answer
Answers
Answer:
<1 and <3 are vertical angles and <2 and <4 are vertical angles
Step-by-step explanation:
Hope this helps. pls mark me brainliest. :)
Answer:
2 and 4 are vertical angles
Step-by-step explanation:
On fitness day in PE, Emma climbed 5 feet up the climbing wall. Alexis climbed 2 yards up the wall. Laurie climbed 66 inches. How far did they all 3 climb together.
Answers
Answer:
19.6 feet can i have brainliest
Step-by-step explanation:
Write the equation of this circle in standard form. A) (x - 2)2 + (y - 3)2 = 4 B) (x + 2)2 + (y + 3)2 = 4 (x - 2)2 + (y - 3)2 = 16 D) (x + 2)2 + (y + 3)2 = 16
Answers
Answer:
The answer is C.
Step-by-step explanation:
The equation of the circle (x - 2)² + (y - 3)² = 16 if the center of the circle is (2, 3) and the radius is 4 units option (C) is correct.
What is a circle?It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)
It is given that:
The graph of the circle is given in the picture:
The center of the circle is (2, 3) and the radius of the circle is 4 units
As we know, the standard equation of the circle is:
(x - h)² + (y - k)² = r²
Here (h, k) and r is the center of the circle and the radius of the circle.
h = 2 and k = 3
r = 4 plug all the values in the equation:
(x - 2)² + (y - 3)² = 4²
(x - 2)² + (y - 3)² = 16
Thus, the equation of the circle (x - 2)² + (y - 3)² = 16 if the center of the circle is (2, 3) and the radius is 4 units option (C) is correct.
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please help me i need it
Answers
Answer: im bad at math sowwy
Step-by-step explanation:
Destiny spent $12.00 of the $20.00 in her wallet.Write a decimal and percent that represents the fraction of the $20.00 that denstiny spent
Answers
Answer:
40% and 0.4
Step-by-step explanation:
T= 3a²b
Find the value of T when a = 4 and b 5.
Answers
5/8 + 3/4 divide by -2/3 - 5/6
Answers
Answer: -4/3
Step-by-step explanation: hope this helps :)
write down five numbers, so that the mean is 6, the median is 5 and the mode is 4.
Answers
Answer:
10, 4, 5, 7, 4
John wants to buy a new motorcycle. The tax rate is 9%. How much tax will
he pay if the motorcycle cost is $4500? (i need this quickly, i'm trying to study for my math test tomorrow but i don't even know how to do the math- pls help!)
Answers
Answer:
$405.00
Step-by-step explanation:
$4500.00×9%=$405.00
Hello I'm Chloe Can you Help me, Thank you :)
y varies proportionally with x. When x = 2, y = 18.
What is the constant of proportionality for this relationship?
Answers
Answer:
The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.
Step-by-step explanation:
Question number 3 please will give brainliest if correct.
Answers
Answer:
1. maintain constant
2. decrease
3. increase
For example,
1.) Key word/s: a while. Which means that this will be a constant speed.
The graph will stay constant.
2.) Key word/s: loses. Which means it will go down slowly so it will decrease.
The graph will decrease.
3.) Key word/s: gains. Which is a word that means to add or increase.
The graph will increase.
Hope it helped somehow!
pq=3-a√x
make x the subject
Answers
Step-by-step explanation:
pq = 3 - a√x
Making x subject
a√x = 3 - pq
√x = (3 - pq) / a
x = [ (3 - pq) /a ]²
Hope it will help :)
Evaluate the following.
(a) |6| - 9 =
(b) |6 - 9| =
Answers
Answer:
(a) -3, (b) 3Step-by-step explanation:
(a) |6| - 9 = 6 - 9 = -3 (b) |6 - 9| = |-3| = 3the product of lisa and her twin brother is 36 and their sum is 36 how old can lisa be
Answers
Answer:
6 years old
Step-by-step explanation:
Since her twin brother is the same age as her, you are looking for two equal factors whose product is 36. The square root of 36 is 6, so the answer is they are both 6 years old.
Sheet 3
Functions - Ordered Pairs
A) State whether each set of ordered pairs represents a function.
1) {(0, 2), (15,-2), (3,7), (2,5),(-2,-4), (1,7), (-11,7)}
2) {(-11, -2), (20, 15),(-12,0), (19,-13)}
I
3) ((16,-4), (9,-1), (3,-2), (8, -1), (13,0), (-17, 16)}
4) {(-8, -13), (-7,3), (5, -9), (-7, 18), (4,3), (0, -10)}
Answers
Answer:
1) Yes
2) Yes
3) Yes
4) No
Step-by-step explanation:
A function has to have points that do not share a domain (x-coordinate). All of the options meet this requirement other then option 4.
Hope it helps!
Which inverse operation is used to solve -15.75=2.5x
Answers
Answer:
addition
Step-by-step explanation: