pls help it’s a test.
Solve for the missing side length. Round to the nearest tenth.
х
40°
20
Answers
Answer:
x=20
Step-by-step explanation:
If there is a 90° angle, that means the 2 sides connecting it must be the same. Therefore, side x is equal to 20 since it is equal to the other side connecting the angle.
Related Questions
If f(x) = x and g(x) = 2, what is (f•g)(x)?
Answers
Answer:
A
Step-by-step explanation:
(f*g)(x)=(2)*(x)=2x
A
If y varies directly as x, and y=-4 when x=8, find y when x=3
Answers
Solve the system of equations
help me show the steps
5x -2y = 88
3x+4y=58
Answers
Answer:
x=18
Step-by-step explanation:
add 2y to both sides 5x=2y+88
subtract 88 from both sides 2y=5x-88
substitute 2y in the second equation for 5x-88
3x+10x-176=58
add like terms 13x-176=58
add 176 both sides
13x=234
x=18
Answer:
( 18, -6.5 )
Step-by-step explanation:
First choose which method you plan on using: Substitution or Elimation. I chose elimination based off preference.
How to solve using Elimination:
5x -2y = 88 (multiply every number in this equation by two)
3x+4y=58
10x -4y = 176
3x+4y=58 (combine these two equations)
13x = 234 (isolate x by dividing by 13 on both sides)
x = 18 (this is your value for x)
3(18) +4y=58 (plug in for x)
54+4y=28 (solve)
4y = -26 (subtract 54 from both sides)
y = -6.5 (this is y)
write answer in (x, y) format
( 18, -6.5 )
I NEED HELPPP
-2 x -3 =?
Answers
Step-by-step explanation: -2 x -3 = 6 cause the negatives cancel out to make 6.
Answer:
ok, lol it's 6
Step-by-step explanation:
hope it helps! it basically doing 2 x 3 which equals 6 sometimes you'll add the negative sign but in this equation u dont need to
In the figure, line m
|| line n.
х
m
740
What is the measure of angle x?
O A. 940
O B. 74°
O C. 100°
D. 106°
Answers
94 is the correct answer I believe
one card from a deck of cards is selected, it is replaced, and another card is chosen. what is the probability that the first card is a red card and the second card is a diamond card?
Answers
Answer:
the probability of a red card is 1/2 of 50% chance. The chance of a diamond card is 1/4 or 25% chance
Step-by-step explanation:
Answer as a fraction = 1/8
Answer in decimal form = 0.125
Answer as a percentage = 12.5%
==========================================
Explanation:
The probability of choosing a red card is 1/2 since half of the cards are red (the other half are black).
This card is selected and then put back into the deck. This means that the second selection will deal with the same number of total cards.
Since we have four suits, and one of those suits is diamonds, this means the probability of choosing a diamond card is 1/4.
We then multiply the fractions to get (1/2)*(1/4) = (1*1)/(2*4) = 1/8
The probability of getting a red card first, then a diamond card second, is 1/8
Use your calculator to find that 1/8 = 0.125 which converts to the percent form 12.5%
Evaluate each expression for the given value of the variable. 11 + r; r=7
Answers
Hey there!
The answer is [tex]18[/tex]
To solve this, you simply plug in [tex]r[/tex] to the expression!
[tex]11+r; r=7[/tex]
[tex]11+7[/tex]
[tex]18[/tex]
Have an amazing day!
Angle 6 and 7 are examples of which type of angle pair
Answers
Answer:
vertical angles?
Step-by-step explanation:
Which values of m make 1/4 m > 3 true ?
Answers
Answer:
m > 12
Step-by-step explanation:
I) Find what m is in 1/4m = 3:
1/4m = 3
Divide by 1/4:
m = 12
II) Make an inequality:
m > 12
Pls help me this is timed
Answers
Answer:
3 to the powered of 7
Step-by-step explanation:
Answer:
3^7 (note that it's not 3*7)
Step-by-step explanation:
3 is multiplied by itself 7 times, so the answer is 3^7(or three to the seventh power in word form)
k^2 - 196 = 0
.....................................................
Answers
Answer:
Step-by-step explanation:
Add 196 to both sides, then take the square root
[tex]k^2=196\\[/tex]
k = ±14
what is y + 20 < 180? please help me
Answers
Answer:
y < 160
Step-by-step explanation:
y + 20 < 180
-20 < -20
y < 160
y is less than 160
so the answer is y < 160
happy to help!
A local charity holds a carnival to raise money. In one activity, participants make a $3 donation for a chance to spin a wheel that has 10 spaces marked with the values 0, 1, 2, 5, and 10. The participant wins the dollar amount marked on the space on which the wheel stops. Let X be the value of a random spin. The distribution of X is given in the table.
A 2-column table with 5 rows. Column 1 is labeled value of a spin with entries
0, .4
1, 0.2
2, 0.2
5, 0.1
10, 0.1
What is the standard deviation of the distribution?
3.01
3.61
9.09
13.04
Answers
Answer:
its 3.01
Step-by-step explanation:
Right on edge
The standard deviation is 2.08.
What is Standard Deviation?A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.
We have the data,
X : 0 1 2 5 10
P(X) : 0.4 0.2 0.2 0.1 0.1
CF : 0.4 0.6 0.8 0.9 1
Sum of fx = 2.5
Mean = 2.5
Deviation X = -2.1 -2.3 -2.1 -2 -1.5
X² = 4.41 5.29 4.41 4 2.25
fX² = 1.764 1.058 0.882 0.4 2.225
Now, standard deviation
= √4.329/1
= 2.08
Learn more about standard deviation here:
https://brainly.com/question/23907081
#SPJ7
During a basketball practice, Mai attempted 40 free throws and was successful on 25% of them. How many successful free trows did she make?
Answers
Answer:
She made 10 free throws
Step-by-step explination:
I found it on this website: https://staff.4j.lane.edu/~ruzicka/Cal_Young/math/Illustrative%20Math/Unit%203%20Rates%20and%20Percents/Lesson%2011/L11%20HW%20Key%20Corrected.pdf
Try it and see if you are right
If you buy a car at a gash station for $5.00, the cost per gallon is $3.10. If you have $40, write and solve a linear equation to find the number of gallons of gas you can afford
Answers
Answer:
Step-by-step explanation:
1) Why would somebody buy a car at a gas station? For $5?
2) You would have $35 to spand on gas. 10 gallons would cost $31. Add 2 more gallons for $6.20.
The total is 12 gallons of gas for $37.20
What is the slope of this line?
Answers
Answer:
A line is increasing if it goes up from left to right. The slope is positive, i.e. m > 0 {\displaystyle m>0} .
A line is decreasing if it goes down from left to right. The slope is negative, i.e. m < 0 {\displaystyle m<0} .
If a line is horizontal the slope is zero. This is a constant function.
If a line is vertical the slope is undefined (see below).
HELP I NEED HELP ASAP
Answers
Answer:
linear
Step-by-step explanation:
Sully has a loan which he repays every month. If the loan amount includes interest, his loan amount due, in dollars, after t years, is shown by the following expression.
7,000(0.90)^12t
Which statement below best describes the coefficient, 7,000?
A. The number of times sully repaid the loan since he began making payments
B. Sully’s initial loan amount
C. The decrease in Sully’s loan amount every month
D. The rate at which Sully repays the loan
Answers
i would say its B. The initial loan amount
Answer:
Sully's initial loan amount
edit: i accidently rated my answer as 1 star but i promise its right
An employee saved 25% of her $400 paycheck. How much money did she save?
Answers
Answer:
she had save 100 dallors
Determine the x- and y- intercepts for the graph defined by the given equation.
x = -9
Answers
Answer:
X intercept is -3/7
how many significant figures does the value of 0.080 have?
Answers
Answer:
2 Significant figures
Step-by-step explanation:
The 8 is the first significant figure since all non zeros are significant.
The 0 after the 8 is also significant since it's a zero after the decimal point and an integer.
my school bag contains 9 books each mass 2/9 kg and 5 folder each mass 7/25 kg what is the total mass of books and folders in my bag
Answers
5*7/25= 35/25= 1 10/25= 1 2/5 kg
1 2/5kg+2kg= 3 2/5kg or 3.4kg
total mass equals 3 and 2/5kg or 3.4kg
How many 1/3 yard are in 4 yards
Answers
Answer:
12
Step-by-step explanation:
Answer:
Thats confusing
Step-by-step explanation:
Hm I would prob say 2/3 or 4/3 I dont know i'm not smart
16 - n = -3
I have ot figure out what n is.
Answers
Answer:
n=13
Step-by-step explanation:
because you can do inverse method 16-3 equal 13
Answer:
-19
Step-by-step explanation:
16-n=-3
first subract 16 frrom both sides.
16-n=-3
-16 -16
which equals to n=-19
-⅕ (10-5+25x)
Please help!
Answers
Answer:
-[tex]-\frac{1}{5} * (5+25x)\\-\frac{1}{5} *5-\frac{1}{5}(25x)\\-1-\frac{1}{5}(25x)\\-1 -1 (5x)\\01-5x[/tex]
Step-by-step explanation:
Kathleen correctly answers 85% of the total questions on a math question correctly answer 17 questions use proportions to find the total number of questions on Kathleen's math quiz
Answers
Answer:
I am don't know sorry
Step-by-step explanation:
sorry follow me
Evaluate the expression when p=5.
p2 - 17
Answers
Answer:
-7
Step-by-step explanation:
If p=5 then p times 2 equals 10.
10 - 17 = -7
Answer:
-7
Step-by-step explanation:
p2 - 17 will be turned into
(5)2 - 17 (multiply)
10 - 17 (subtract)
= -7
What is the answer to 3m + 4m + 6m + 5m
Answers
Answer: 18m
Step-by-step explanation:
Can someone Please help me with this ??
Answers
y = 2/3x - 2
the easiest way to do this without doing actual math is to just graph it
The point (-5, 3) is reflected across the x axis. What are the coordinates of this reflection? Group of answer choices
Answers
Answer:
( -5, -3)
Step-by-step explanation: