Answer:You can use this fact to solve for the missing angle of a triangle. ... Remember -- the sum of the degree measures of angles in any triangle equals 180 degrees. Below is a picture of triangle ABC, where angle A = 60 degrees, angle B = 50 degrees and angle C = 70 degrees. ... Let x = the degree measure of each angle.
Step-by-step explanation:
what is the vertex of this parabola? I WILL GIVE BRAINLIEST!!!
(1, -2)
The vertex is simply the turning point.
if the sum of two number is 13 and their product is 42,determine the number.
Answer:
numbers are 7 and 6
Step-by-step explanation:
7+6=13
7x6=42
What is the value of x? Show me how you got that answer.
Answer:
x = 3
Step-by-step explanation:
The angle measuring 5x and the angle measuring 165° are a linear pair, so they are supplementary. Their measures add to 180°.
5x + 165 = 180
5x = 15
x = 3
Find the slope of the line passing through the points (-7, 8) and (5, -7).
Answer:
m = -5/4
Step-by-step explanation:
m = rise/run = (y2-y1)/(x2-x1)
(-7 - 8)/ (5 - -7)
-15/12
-5/4
In rugged terrain, Martin can hike 1/8 Mile in 1/2 hour. At this rate, how far can Martin hike in 1 hour?
A. 5/8 mile
B. 1/16 mile
C. 1/4 mile
D. 1/6 mile
Light travels at a rate of about 9,460,528,400,000,000 m per year.
Choose the best approximation of how many meters light travels per year.
Choose 1 answer:
(A) 9x10^15
(B) 9x10^16
Answer:
A
Step-by-step explanation:
You just find out which number is closer to the speed of light
Answer:
9x10^15
Step-by-step explanation:
9,460,528,400,000,000
If you count the numbers up until 9 you get 15. So the easy hack is to just count the numbers up until the VERY first then whichever answer had that number is the right one.
What is the greatest value in the range of f(s) = x2 – 3for the domain (-3,0, 1, 2)?
Answer:
6
Step-by-step explanation:
f(s) = x^2 - 3
f(-3) = 6
f(0) = -3
f(1) = -2
f(2) = 1
please help ASAP will give brainleast to correct answer plus thank you!
Answer:
-31
Step-by-step explanation:
-15-9+(-7)
-15-9-7
-24-7
-31
Answer:
Is D
Step-by-step explanation:
Hope it helps you its -1
How do you find the diameter
Answer:
2x radius I believe
Tell me if im wrong and I will remove this
A local school board wants to determine if the proportion of households in the district that would support starting the school year a week earlier has changed from the previous year. Last year, the school board determined that 65% of households supported starting school earlier. They ask a random sample of 100 households this year, and 70% state they would support starting the school year earlier. Which hypotheses would determine if the proportion of households that support starting school earlier has changed this year?
Group of answer choices
H 0: p not-equals 0.70, H alpha: p = 0.70
H 0: p = 0.70, H alpha: p not-equals 0.70
H 0: p = 0.65, H alpha: p greater-than 0.65
H 0: p = 0.65, H alpha: p not-equals 0.65
Answer:
C
Step-by-step explanation:
Considering the situation, the hypotheses set that would determine if the proportion of households that support starting school earlier has changed this year is given by:
[tex]H_0: p = 0.65, H_\alpha: p \neq 0.65[/tex]
What are the hypotheses tested?At the null hypotheses, it is tested if there has been no change, that is, the proportion is still of 0.65 = 65%, hence:
[tex]H_0: p = 0.65[/tex]
At the alternative hypotheses, it is tested if there has been a change, that is, the proportion is not of 0.65 = 65% anymore, hence:
[tex]H_\alpha: p \neq 0.65[/tex]
More can be learned about an hypotheses test at https://brainly.com/question/26454209
PLSSSSSSSSSSSS I SERIOUSLY DONT GET THIS
HELP PLEASE AND ASAP!!!!! look at screenshot (10 pts)
Answer:
0
Step-by-step explanation:
Using PEMDAS you complete the operation. Hope it helps :)
Mrs. Williamson had 18 students in her homeroom at the beginning of the school year and 24 students at the end of the year. What was the approximate percent increase in the number of students in Mrs. Williamson’s homeroom?
25%
33%
57%
75%
Answer:
25%
Step-by-step explanation:
An easy way to figure this out is just by dividing the initial amount of students (18) by the current amount of students (24), and then subtracting 1.
So, 18/24 = 0.75 (aka 75%), and 1 - 0.75 = 0.25 (aka 25%)
5x = -5 and it has to show work pls
Answer:
x=-1
Step-by-step explanation:
5x=-5
[tex]x=\frac{-5}{5}=-1[/tex]
help please!!!!!!!!!!!!!!
Answer:
x = 42,33°
Step-by-step explanation:
3x + 1° + 52° = 180° [angles on a straight line]
3x + 53° = 180°
3x = 180° - 53°
3x = 127°
divide both sides by 3
x = 42,33°
Henry rolls a standard six-sided die, numbered from 1 to 6. Which word or phrase describes the probability that he will roll a multiple of 2?
A certain bile
B unlikely
C an equal chance or 50-50 impossible
D impossible
Answer:
certain
Step-by-step explanation:
Jai rolls a standard six-sided die, numbered from 1 to 6. Which word or phrase describes the probability that he will roll a number between 1 and 6 (including 1 and 6)?
There are 6 possible outcomes for rolling a die numbered from 1 to 6: {1, 2, 3, 4, 5, 6}.
Within that set of outcomes, there are 6 possible ways of rolling a number between 1 and 6 (including 1 and 6): {1, 2, 3, 4, 5, 6}.
6 out of 6 is 1. When something will occur all the time, we say it is certain.
HELP PLEASE DUE SOON!!!
Answer:
37+23
Step-by-step explanation:
I searched it up. someone else asked the exact same question. I hope it's correct though.
Answer:
The larger number is 37 and the smaller number is 14.
Step-by-step explanation:
Let's solve this problem in terms of x and y:
x+y=60
x-y=14
x will be the larger number while y will be the smaller number.
When we add both those equations together, we get 2x=74 since y-y=0. Now we do 74÷2 which equals 37 so x=37. Finally we know that x=37 so our y must be the remaining part since x+y=60. We simply subtract 37 from 60 and get our smaller number, 23.
I hope this helps :)
Find area triangle of 15 ft and 18 ft
The area of the triangle is. Ft2
Answer:
a= 135
Step-by-step explanation:
18*15=135
HURRY this needs to be done fast!!!
Someone help me solve all this + include working out.
Will mark as brainliest. Thanks
Answer:
We know that P(x) = 30*x^3 + k*x^2 + 1
a) If (3x - 1) is a factor, let's find the value of k.
Because the degree of the original polynomial is 3, and the degree of the factor is 1, we should multiply it by a polynomial of degree 2.
Then:
30*x^3 + k*x^2 + 1 = (3*x - 1)*(a*x^2 + b*x + c)
30*x^3 + k*x^2 + 1 = 3*a*x^3 + 3*b*x^2 + 3*c*x - a*x^2 - b*x - c
30*x^3 + k*x^2 + 1 = 3*a*x^3 + (3*b - a)*x^2 + (3*c - b)*x - c
The terms with the same exponent should be equal, then:
30*x^3 = 3*a*x^3
30 = 3*a
30/3 = a = 10
k*x^2 = (3*b - a)*x^2
k = (3*b - 10)
0*x = (3*c - b)*x
0 = (3*c - b)
b = 3*c
and
1 = -c
then:
c = -1
Replacing this in the equation: b = 3*c
we get: b = -3
Replacing this in the equation for k, we get:
k = (3*b - 10) = (3*-3 - 10) = -19
k = -19
And we can write:
P(x) = (3*x - 1)*(10*x^2 - 3*x - 1)
b) Now we want to write P(x) as a product of its linear factors.
Then we need to factorize the quadratic part:
We need to solve
10*x^2 - 3*x - 1 = 0
We can use the Bhaskara's equation to get the solutions:
[tex]x = \frac{-(-3) \pm \sqrt{(-3)^2 - 4*10*(-1)} }{2*10} = \frac{3 \pm 7}{10}[/tex]
Then the two zeros of that polynomial are
x = (3 + 7)/10 = 1
x = (3 - 7)/10 = - 4/10 = -2/5
So we can write the polynomial as:
10*(x - 1)*(x - (-2/5))
Replacing this in the equation of P(x) we get:
P(x) = (3*x - 1)*10*(x -1)*(x + 2/5)
= 10* (3*x - 1)*(x -1)*(x + 2/5)
So P(x) is written as a product of lineal factors.
C) The zeros of the polynomial are the values of x such that one of the factors becomes equal to zero.
For the first factor, we have a zero at x = 1/3
for the second, we have a zero at x = 1
for the third one, we have a zero at x = -2/5
For a rectangle with length of
3x + 4 and perimeter of 10x + 18,
what is the width of the
rectangle? Reminder, there are
two lengths and two widths in a
rectangle
Answer:
2x+5
Step-by-step explanation:
Formula for the perimeter of a reactangle= 2(l+b)
So,
2(l+b) = 10x+18
2(3x+4 + b) = 10x+18
Rearrange and solve
3x+4+b = 5x+9
b = 5x+9 - 3x - 4
b = 2x+5
Thus the measurement of the width = 2x+5
Hope this helps
The radius of a cylindrical water tank is 6.5 ft, and its height is 12 ft. What is the volume of the tank?
Answer:
.............. just for filling 20 characters
Hurry please
here is a triangle prism
why is the surface area of the prism, in square centimeters?
Answer:
Step-by-step explanation:
(6 * 4) + 2(10 * 5) + (10 * 6)
Multiply 6 by 4 to get 24.
24 + 2(10 * 5) + (10 * 6)
Multiply 10 by 5 to get 50, then multiply by 2 to get 100.
24 + 2(50) + (10 * 6)
24 + 100 + (10 * 6)
Multiply 10 by 6 to get 60.
24 + 100 + 60
Add 24 to 100 to get 124.
124 + 60
Add 124 to 60 to get 184.
184 cm²
The surface area of the prism is 184 cm².
Your ship sinks and you swim to a nearby island. On this island, the inhabitants do not use money. The island residents use island fruit as money.
If 60 bananas = 20 coconuts
35 figs = 15 oranges
10 coconuts = 25 figs
200 figs = 1 boat
How many bananas would you need to purchase a boat to get off the island?
Answer:
240 bananas
Step-by-step explanation:
You would need 8 sets of figs. 10 coconuts is equal to 25 figs so you need 80 coconuts. You would need enough bananas to get 4 sets of coconuts. 60*4 = 240
Answer:
To buy the boat you would need 240 bananas.
Explanation:
3 bananas = 1 coconut
1 coconut = 2.5 figs
200 figs (price of boat) = 80 coconuts
80 coconuts (price of boat) = 240 bananas
Evaluate the expression.
(65+ (1/5 x 5) + 6) Divided by 9
Answer:
8
Step-by-step explanation:
[tex]\frac{65+(\frac{1}{5} *5)+6}{9} \\\\\frac{65+1+6}{9} \\\\\frac{72}{9} \\\\8[/tex]
Change from Standard Form into
Slope-Intercept Form
6.
2x - 3y = 12
Help please
Answer:
y = 2/3x - 4
Step-by-step explanation:
2x - 3y = 12
-3y = -2x + 12
y = 2/3x - 4
Sakura speaks 150 words per minute on average in Hungarian, and 190 words per minute on average in Polish. She once gave cooking instructions in Hungarian, followed by cleaning instructions in Polish. Sakura spent 5 minutes total giving both instructions, and spoke 270 more words in Polish than in Hungarian.
How long did Sakura speak in Hungarian, and how long did she speak in Polish?
Sakura spoke for _____ minutes in Hungarian and for _____ minutes in Polish.
Help me pleaseee I need help
Two angles of a triangle measure 45 degrees and 90 degrees. What is the third angle measure?
A 30 degrees B 45 degrees
C 90 degrees
Answer:
B
Step-by-step explanation:
Angles in a triangle add up to 180
Take 45 + 90 then subtract the answer from 180
Debera earns $350 a month. She saves $28 a month. Savings is what percent of her income?
We can find percent by dividing savings by total earned. 28/350=8%
8%
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