Answer:
What do you need help with?
Step-by-step explanation:
What do you need help with-?
PLSSSSS HELP!!!!!!!!!
Answer:
x=30º
∠CAB=60°
∠ACB=80°
Step-by-step explanation:
Because the angles of every triangle add up to 180º, we know that:
[tex]2x+20+2x=180-40\\ 4x=180-40-20\\ 4x=180-60\\ 4x=120\\ x=\frac{120}{4}[/tex]
x=30º
Plug that in for x on both angles, and you will get
∠CAB=60°
∠ACB=80°
The leading coefficient in 1 + 6x + 9x2 is 1.
O True
O False
Answer:
true
Step-by-step explanation:
1+4+8
A spinner is divided into 12 equal sections numbered 1-12. What is the probability of landing on a section with a number that is less than 5?
Answer:
4/12
Step-by-step explanation:
There is a 1 in 12 chance of any number being spun on the wheel. Because there are 4 numbers less than 5, there is a 4 in 12 chance of one of those numbers being spun.
I NEED ASAP DUE TODAY!!!! WILL GIVE THE BRAINLEST
solution to
y=0.50x+1
and
y=0.25+5
Explain step by step plz
Huilans age is three times Thomas's age. the sun of their ages is 40. what is Thomas's age?
Answer:
Step-by-step explanation:
Huilan = H
Thomas = T
H = 3T
T+3T = 40(This is the sum)
4T = 40
4T/4=T
40/4=10
T=10
27 MP3s is what percent of 238 MP3s
Step-by-step explanation:
1.134 is your answer to your question
A. (-5,-)
B. (-2,-4)
C. (1.-6)
D. (-5.-5)
Marcello gets paid $18 per hour at his job. He takes a $4 uber ride to get to work and a $4 uber ride to get home. If he works 8 hours, what is his total profit for the day?
Answer:
$136
Step-by-step explanation:
x = per hour
y = total profit
4 + 4 = 8
Equation:
y = 18x - 8
y = 18(8) - 8
y = 144 - 8
y = 136
I'll give you brainiest if you help me.
Answer:
88 degrees.
Step-by-step explanation:
Since AB is equal to BC, ABC is an isosceles triangle. Therefore, the angle of B will be 180-39-39=102 degrees. As the angle of a straight line is 180 degrees, take 180-102-32=46 degrees. This 46 degrees is angle B. Since DEB is an isosceles triangle, 180-46-46=88 degrees. 88 degrees is angle E which is your answer. Edit: (Just added on the explanation.)
Complete the similarity statement for the similar figures then find the scale factor
plz help me
add explanation if you can
Plss I need this rnnn
Answer:
25
Step-by-step explanation:
25 is the answer because the sum of angles add up to 90
Which statement is true about rectangular prisms?
A. All rectangular prisms have five faces.
B. The bases are always congruent.
C. The lateral faces are always congruent.
D. All rectangular prisms have three lateral faces.
Answer:
it b
Step-by-step explanation:
Jackson is starting an exercise program.The first day he will spend 30 minute on a treadmill by 2 minutes each day.Write an equation for t(d),the time,in minutes,on the treadmill on day d
Answer:
For the d day Jackson exercised for t(d)= 30 + 2d where d is the number of day.
t(d)= 30 + 2d
Step-by-step explanation:
Let the total time on the treadmill be given by y each day and let x take the values of number of the days exercised . For the first day x= 0 and so on.
Therefore
For the first day Jackson exercised for 30 minutes
y= 30 + 2x
y= 30 + 2(0)
y= 30 minutes
For the second day Jackson exercised for (x=1) 32 minutes
y= 30 + 2x
y= 30 + 2(1)
y= 32 minutes
For the third day Jackson exercised for (x=2) 34 minutes
y= 30 + 2x
y= 30 + 2(2)
y= 34 minutes
For the fourth day Jackson exercised for (x=3) 36 minutes
y= 30 + 2x
y= 30 + 2(3)
y= 36 minutes
For the d day Jackson exercised for (x=d) 30 + 2d where d is the number of day.
y= 30 + 2x
y= 30 + 2(d)
y= 30 + 2d
You leave home and walk 3 blocks east, then 4 blocks north. How far are you from
home?
Please helppp thanksss
what is the equation for the line that passes through the points (-5.5, 2.5) and (-2.5, -3.5)?
Answer:
y=-2x-8.5
Step-by-step explanation:
y=mx+b
slope = -2
y=-2x+b
y intercept = -8.5
y = -2x-8.5
What is the slope of the linear equation: y=-5x+6
Answer Choices:
A. -5
B. -5x
C. 1/5
D. 6
8 zombies have been spotted just outside of Galveston, its population by 50% each day. Write an equation that represents this specific outbreak.
Answer: 2+2?
Step-by-step explanation: Yes
Pls help I have this homework !! bye I will mark you the best or brainliest!!
Answer:
90-54w
Step-by-step explanation:
18(5−3w)=
18*5=90 , 18*3w= 54w =
so simplified it would be = (90-54w)
Please mark me as brainliest :D
Evaluate the function.
f(x)= -x^2
find f(3)
Answer:
f(3) = - 9
Step-by-step explanation:
To evaluate f(3) , substitute x = 3 into f(x) , that is
f(3) = - (3)² = - 9
As a result of aerobic respiration, the composition of the air that is breathed in and the air that is breathed out changes
Answer:
The given statement is true
Step-by-step explanation:
Complete question
As a result of aerobic respiration, the composition of the air that is breathed in and the air that is breathed out changes. Is this true
Solution
Yes the composition of gases inhaled and exhaled are of different composition.
We intake oxygen from atmosphere while breathing in. However, while breathing out we release carbon dioxide (CO2).
Hence the given statement is true.
An economist studying fuel costs wants to estimate the mean price of gasoline in her state on a certain day. On that day, she takes an SRS of 121212 gas stations and finds the sample mean price (in dollars per gallon) is \bar x=\$2.29 x ˉ =$2.29x, with, \bar, on top, equals, dollar sign, 2, point, 29 with a standard deviation of s_x=\$0.20s x =$0.20s, start subscript, x, end subscript, equals, dollar sign, 0, point, 20. The prices in the sample are roughly symmetric with no distinct outliers. Based on this sample, which of the following is closest to a 90\%90%90, percent confidence interval for the mean price of gasoline that day in her state?
Answer:
($2.19,$2.39)
Step-by-step explanation:
khan
Based on this sample, the confidence interval which is closest to a 90%, for the mean price of gasoline that day in her state is ($2.19, $2.39).
What is random sample?Random sample is the way to choose a number or sample in such a manner that each of the sample of the group has an equal probability to be chosen.
When the sample size is less than 30, the formula which is used is,
[tex]\overline x\pm t.\dfrac{s}{\sqrt n}[/tex]
Here, n is the sample size, [tex]\overline x[/tex] is the sample mean, s is the standard deviation.
Economist, takes an SRS of 12 gas stations. The sample size for the given problem is 12,
[tex]n=12[/tex]
Thus, degree of freedom,
[tex]df=12-1\\df=11[/tex]
In the t table, for df 11, the value of t is 1.796.
An economist studying fuel costs wants to estimate the mean price of gasoline in her state on a certain day.
On that day, she takes an SRS of 12 gas stations and finds the sample mean price (in dollars per gallon) is,
[tex]\bar x=2.29[/tex]
With a standard deviation of
[tex]s_x=0.20[/tex]
Put the values in the above formula,
[tex]2.29\pm 1.796.\dfrac{0.20}{\sqrt 12}\\2.29\pm 0.1037\\2.29+0.1037=2.3937\\2.29- 0.1037=2.1863[/tex]
Thus, based on this sample, the confidence interval which is closest to a 90%, for the mean price of gasoline that day in her state is ($2.19, $2.39).
Learn more about the random sample here;
https://brainly.com/question/17831271
Which statements about opposites are true?
Select each correct answer.
The opposite of zero is zero.
A number and its opposite are located the same distance from zero on a number line.
The product of a number and its opposite is always 1.
The opposite of a negative number is always a positive number.
9514 1404 393
Answer:
A, B, D
Step-by-step explanation:
The "opposite" of a number is that number with its sign changed.
__
The opposite of zero is zero.A number and its opposite are located the same distance from zero on a number line.The opposite of a negative number is always a positive number.Answer:
The "opposite" of a number is that number with its sign changed.
Naman purchases 3 vases for an upcoming event for m dollars each. Each vase is charged an addition 5% sales tax. Which expressions can Naman use to express the total cost of the 3 vases? Select each correct answer. 3.05m 3(m+0.05m) 3.15m 3m + 0.05m
convert 3.34 as a fraction in its simplest form
Answer:
3 17/50
Step-by-step explanation:
what's the area of the circle
Answer:
3.14
Step-by-step explanation:
9y - 2x = 0 in slope intercept form.
Answer:
y=2/9x
Step-by-step explanation:
I hope this helps
Step-by-step explanation:
9y-2x=0
9y=2x
y=(2/9)x
if it costs 21.6$ for 12 brownies, how much would it cost for 1
Answer:
1.8$
Step-by-step explanation:
simply just say 21.6 divided by 12 (number of brownies) which equals to 1.8
so therefore the answer is 1.8$ for 1 brownie
A pizza pan is removed at 9:00 PM from an oven whose temperature is fixed at 425°F in a room that is constant 74°F. After 5 minutes, the pizza pan is at 300 °F
A) at what time is the temperature of the pan 130°F ?
B) determine the time that needs to elapse before the pan is 180°
Answer:
9:11:48 p.m
9.8 minutes
Step-by-step explanation:
We Obtian the slope of the relation :
Slope = Rise / Run
(0, 425) ; (5, 300)
x2 = 0 ; y2 = 425 ; x1 = 5 ; y1 = 300
(425 - 300) / (0 - 5)
125 / - 5
= - 25
The intercept :
y = mx + c
425 = - 25(0) + c
425 = 0 + c
c = 425
The equation becomes :
y = - 25x + 425
Temperature at 130
130 = - 25x + 425
130 - 425 = - 25x
-295 = - 25x
x = 11.8
9:00 + 11.8 = 9:11:48 p.m
B.)
180 = - 25x + 425
180 - 425 = - 25x
-245 = - 25x
x = 9.8 minutes
Javier estimates the square root of 18 in the following way: √18=2√9=2*3=6 Explain why her reasoning is incorrect. Without using a calculator, the square root of 18 will be between what two values (remember to look for perfect squares/perfect square roots)? Show your reasoning. You do not need to find the decimal equivalent of the root.
Answer:
Javier estimates the square root of 18 in the following way: √18=2√9=2*3=6 Explain why her reasoning is incorrect. Without using a calculator, the square root of 18 will be between what two values (remember to look for perfect squares/perfect square roots)? Show your reasoning. You do not need to find the decimal equivalent of the root.
Answer:
Solution given:
√18√[9×2]3√2 is a perfect square of √18.not 6.