How do I find the x in this special triangle?
Answer:
x=5
Step-by-step explanation:
a^2+b^2=c^2
a=4
b=3
c=x
4^2+3^3=x^2
16+9=x^2
25=x^2
5=x
Multiple Step Equations
Solve the multiple choice equation
What is the solution to this equation?
5(x – 4) = 3x + 4
A x = -8
(B) x = -2
C x=3
(D) x = 12
Math
Answer:
D
Step-by-step explanation:
5(x-4) = 3x + 4
5x-20 = 3x + 4
5x-3x-20= 4
2x=4 +20
2x=24
x=12
check answer by inserting 12 for x into original equation.
5(12-4) = 3(12) +4
5(8) = 36 +4
40 = 40
A runner saved $25 when he purchased a pair of tennis shoes on sale. If the sale price was 35% off the regular price, what was the regular price of the tennis shoes?
Given:
Amount saved in sale = $25
Sale price was 35% off the regular price.
To find:
The regular price of the tennis shoes.
Solution:
Let the regular price of the tennis shoes be x.
Sale price was 35% off the regular price.
[tex]Discount=\dfrac{35}{100}x[/tex]
Amount saved in sale = $25
[tex]0.35x=25[/tex]
Divide both sides by 0.35.
[tex]x=\dfrac{25}{0.35}[/tex]
[tex]x=71.42857[/tex]
[tex]x\approx 71.43[/tex]
Therefore, the regular price of the tennis shoes is $71.43.
Find the slope of the line
Y=1/4x + 2
Answer: 14
Step-by-step explanation:
Elsie has two bags, each containing x counters. Write an expression for the total number of counters Elsie has.
Answer:
Y=2x
Step-by-step explanation:
What is the value of x?
Enter your answer in the box
need help finding the slope line through each pair
Answer:
9) -25/21
11) 14
Step-by-step explanation:
In each case, subtract the y-coordinates. Subtract the x-coordinates in the same order. Divide the difference in y by the difference in x.
9)
y-coordinates: -10 - 15 = -25
x-coordinates = 6 - (-15) = 21
slope = (difference in y)/(difference in x) = -25/21
11)
y-coordinates: -20 - 8 = -28
x-coordinates = 3 - 5 = -2
slope = (difference in y)/(difference in x) = -28/(-2) = 14
Determine the quotient of 2 over 5 divided by 3 over 4. (2 points)
PLS I NEED HELP FAST PLS
Answer:
8 over 15
Step-by-step explanation:
you should get a calculator.
Answer:
8/15
Step-by-step explanation:
Which expression can be used to find 25 percent of 88?
StartFraction 1 Over 25 EndFraction times 88
One-fourth times 88
StartFraction 1 Over 0.25 EndFraction times 88
StartFraction 1 Over 40 EndFraction times 88
Answer: 25/100* 88
Step-by-step explanation:
Answer:
88?
Step-by-step explanation:
To complete step 3, which expression must fill in each blank space?
A.) cos(A)cos(B)
B.) cos(A)sin(B)
C.) Sin(A)cos(B)
D.) sin(A)sin(B)
Answer:
The answer is A cos(A)cos(B)
Step-by-step explanation:
I just took it
The expression which must fill in each blank space to complete step 3 is; Choice B; Cos(A)Cos(B).
Which expression must fill in each blank space?From the task content; It follows that the mathematical evaluation is in a bid to derive the Trigonometric identity for Tan (A-B).
From observation, it follows that the required expression is; cos(A)sin(B). This is because upon division of each term by the expression, the result is as in Step 4.
Read more on Trigonometric identities;
https://brainly.com/question/24496175
#SPJ2
Which line is perpendicular to y=1/3+9
Answer: The perpendicular slope is [tex]-3[/tex]
Step-by-step explanation:
Find the perpendicular slope (the negative reciprocal of [tex]\frac{1}{3}[/tex]):
[tex]-3[/tex]
17. On a map, 1 inch = 20 miles. If the road is 4.3 inches long on the map, how many miles is the actual road?
18. If you travel 450 miles on 15 gallons of gas, how many gallons will you need to travel 1530 miles?
19. Sam's ratio of blue marbles to black marbles is 3:5. How many blue marbles does Sam have if he has 45 black
marbles?
20. Mandi is carrying a 10 liter jug of sports drink that weighs 15 kg. She wants to know how many kilograms a 2-liter
jug of sports drinks would weigh.
Answer:
17. 86 miles
Step-by-step explanation:
Solve.
{4x+y=53x+y=3
Use any method.
(0, -3)
(-3, 7)
(2, -3)
(0, 5)
Answer:
(2, -3)
Step-by-step explanation:
i took the k-12 test and i used the answer above and got it wrong.
RJ gave half of his video games to his friends, then his mom bought him 3 new games. He now has 8 games. How many games did he start with?
What is the equation?
Answer:
g/2 + 3 = 8
Step-by-step explanation:
g = video games
(the answer is g=10)
Answer:
he started with 10 video games
Step-by-step explanation:
10-5+3=8 hope this helps mark brainlest if so please and thank you
!!PLEASE HELP!!
Will mark brainliest
Look at the picture^^
Answer:
u=UMMM this is your teacher you should not be asking for your answers online you got a zero
Step-by-step explanation:
How do you get your cat to be quiet?
Answer: put it in the microwave
Step-by-step explanation:
Choose the correct rule to describe the transition of ▵ to ▵’’’
Answer:
The rule that describes the translation of ΔABC to ΔA'B'C' is
(x, y) → (x + 4, y + 3) ⇒ b
Step-by-step explanation:
Let us revise the rule of translation of a point
The image of the point (x, y) after translation h units to the right and k units up is (x + h, y + k)The image of the point (x, y) after translation h units to the right and k units down is (x + h, y - k) The image of the point (x, y) after translation h units to the left and k units up is (x - h, y + k)The image of the point (x, y) after translation h units to the left and k units down is (x - h, y - k)Let us solve the question
∵ Point A = (-3, 0)
∵ Point A' = (1, 3)
→ Subtract the x-coordinate of A from the x-coordinate of A' to find h
∵ h = 1 - - 3 = 1 + 3 = 4
→ h is a positive value, then the translation is to the right
∴ Point A translated 4 units to the right
→ Subtract the y-coordinate of A from the y-coordinate of A' to find k
∵ k = 3 - 0 = 3
→ K is a positive value, then the translation is up
∴ Point A translated 3 units up
∴ The rule of translation is (x, y) → (x + 4, y + 3)
Let us find B' and C' using the rule of translation
∵ B = (-3, -2)
∵ The rule of translation is (x, y) → (x + 4, y + 3)
∴ B' = (-3 + 4, -2 + 3)
∴ B' = (1, 1) ⇒ same as the figure
∵ C = (-1, -2)
∵ The rule of translation is (x, y) → (x + 4, y + 3)
∴ B' = (-1 + 4, -2 + 3)
∴ B' = (3, 1) ⇒ same as the figure
The rule that describes the translation of ΔABC to ΔA'B'C' is
(x, y) → (x + 4, y + 3)
what is an equation of the line that is parallel to y=-5x+6 and passes through the point (-4,-1)
Answer:
y= -5x - 21
Step-by-step explanation:
parallel lines have the same slope, so you know the slope.
you need to use the point slope formula y-y1=m(x-x1)
with this equation, this looks like y - -1 =- 5(x - -4)
double negatives are positives, so to keep this easier on the eyes, let's make it y + 1= -5(x + 4)
distribute the -5. you should get y + 1 = -5x - 20
subtract 1 to move it from the left side to the right and you get your answer!
y = -5x - 21
Find the degree measure of each interior angle of quadrilateral PQRS
Angle S= 2x
Angle Q= 2x
Angle P= 4x
Angle R= 7x
Answer: XZ = 18
Step-by-step explanation:
An Obtuse angle is an angle whose degree measure is greater than 90 and less than ... Find the measure of the angle and give the reason for knowing it. ... 2x = 26 x = 13. 18. x = ______. Alternating Exterior Angles. 8x – 4 = 160 ... What is the smallest angle? 1. ∠Q. 2. ∠P. 3. ∠R. 2. In ΔXYZ, XY = 5, YZ = 7 and XZ = 18.
fastttt 25 points Which frequency table should she use for the histogram?
Answer:B. Interval 56–63 63–70 70–77 77–84 84–91 91–98 Frequency 1 7 0 5 5 2
Because you want to really see the different kind of scores the person gets from the data.
Step-by-step explanation:
what is the answer to this question
Answer:
Number of protons
Step-by-step explanation:
The atomic number represents the number of protons that are in the nucleus. This says what chemical properties something has and where it is located on the periodic table.
Best of Luck!
Please help! Will give Brainliest!!!
Answer: the answer to 1 is 2
Step-by-step explanation:
Please help i have a test and this is the only question im stuck on 30 points
The Precision Scientific Instrument Company manufactures thermometers that are supposed to give readings of 0°C at the freezing point of water. Tests on a large sample of these thermometers reveal that at the freezing point of water, some give readings below 0°C (denoted by negative numbers) and some give readings above 0°C (denoted by positive numbers). Assume that the mean reading is 0°C and the standard deviation of the readings is 1.00°C. Also assume that the frequency distribution of errors closely resembles the normal distribution. A thermometer is randomly selected and tested. Find the temperature reading corresponding to the given information.
If 6.3% of the thermometers are rejected because they have readings that are too high and another 6.3% are rejected because they have readings that are too low, find the two readings that are cutoff values separating the rejected thermometers from the others.
–1.46° , 1.46°
–1.39° , 1.39°
–1.53° , 1.53°
–1.45° , 1.45°
Answer:
-1.53 , 1.53
Step-by-step explanation:
It is basically asking you to find the percentiles. so for the bottom 6.3% you would type into your calculator 2nd, VARS, invNorm, area: .063, mean: 0, and Standard Deviation: 1 which gives you -1.53.
for the upper 6.3% you have to take 1-.063=.937 to get the upper percentile. now type into your calculator 2nd, VARS, invNorm, area: .937, mean: 0, and Standard Deviation: 1 which gives you 1.53.
Using the normal distribution, it is found that the third quartile of Q3 is 0.67, hence option B –1.39°, 1.39° is correct.
What does "normal" describe in statistics?Normal usually refers to the word "normal" in a normal distribution.
The word normal is used when something occurs that has occurred frequently. The normal distribution is somewhat similar where the main observation (mean or its surrounding) occurs frequently and as we go far from the mean, its chances decrease.
In a normal distribution with mean μ and standard deviation σ, the z-score of a measure X will be;
Z = (X - μ)/ σ
After finding the z-score, we have to find the p-value associated with this z-score, which is the percentile of X.
The mean is 0ºC, μ= 0
The standard deviation is 1ºC, σ = 1.
Therefore when Z has a p-value of 0.75, hence X when Z = 0.67.
Z = (X - μ)/ σ
0.67 = (X - 0)/ 1
X = 0.67
Thus, the two readings that are cutoff values separating the rejected thermometers from the others are B –1.39°, and 1.39°.
Learn more about normal distribution here:
https://brainly.com/question/15395456
#SPJ2
Help me pleaseeeeee!!!
Answer:
Yep thats right
Step-by-step explanation:
104 18/25+ 29 7/10
("/" is and fraction sign)
Answer:
134.42
Step-by-step explanation:
Answer:
134.72 is the answer
Step-by-step explanation:
hope this helps..
An election campaign organizer bought 20,000 buttons to hand out for a candidate. The organizer handed out 14,000 of the buttons before receiving the next shipment of 15,500 buttons. On the day of the election, the organizer handed out another 18,250 buttons. How many buttons were left after the election?
Answer: 3,250
Step-by-step explanation:
5x^4-7(-x)
Would the simplified version of this be 5x^4+7x?
Answer:
5x⁴ + 7x or x(5x³ + 7 )
Step-by-step explanation:
Given expression:
5x⁴ - 7(-x )
To simplify this expression, we have to follow the order of operation PEMDAS;
Parentheses, Exponents, Multiplication, Division, Addition and Subtraction
5x⁴ - 7(-x ) = 5x⁴ + 7x
Since x is common to both terms;
= x(5x³ + 7 )
So the simplified version can be 5x⁴ + 7x or x(5x³ + 7 )
The hardcover version of a book weighs 7 ounces while its paperback version weighs 5 ounces. Forty-five copies of the book weigh a total of 249 ounces.
A table titled Weight of Books showing Number of Books, Weight per book in ounces, and Total Weight in ounces. The first row shows Hard Cover, with h, 7, and 7 h. The second row shows Paperback, with 45 minus h, 5, and x. The third row shows Total, with 45, blank, and 249.
Which value could replace x in the table?
40 – h
50 – h
5(45) – h
5(45 – h)
Answer:
The Correct answer is D.) 5(45 – h)
Step-by-step explanation:
x can be replaced by 5(45 - h)
Tap the THANKS button and RATE ⭐️
Answer:
its d
Step-by-step explanation:
just took the quiz
A sailor is allowed 7 days off for every 30 days at sea. For 28 days off, how many days at sea must the sailor spend?
Answer:
120 days
Step-by-step explanation:
7 days off x 4 days off = 28 days off, so you have to multiply 30 x 4 which equals 120
