Answer:
when using elimination you "eliminate one variable by adding the equations", so basically in this equation 2y-2y cancel out when you add the equations together. so, you'll find x first. once you find the value of x, then you plug x into one of the equations to find the ordered pair solution, which happens to be (-1,0) in this solution.
Step-by-step explanation:
i hope this helps :)
Please help this is an emergency
Answer:
21°
Step-by-step explanation:
<CBE=<ABD=69°
in triangle ABD, <ABD+<ADB+<DAB=180°
69°+90°+x=180°
So, x= 21°
Calculate the sum
32+(-40)
How do you find percentages?
Step-by-step explanation:
if you have 3/4 you divide the part, 3, by the whole, 4
3 ÷ 4 = 0.75
then multiply 0.75 by 100, 75, then add a percentage sign: 75%
Oak Street and Elm Street run parallel to each other. When Main Street
intersects them, it forms interior 24, measuring 35°. What is the measure of
272
Main
Oak
4 (35)
5
6
Elm
O A. 145°
B. 135
C. 35
D. 45°
Number 8 please help 10 points no links pleAse
zoom
860/483/9988
this is just not part of it⇒ 5+2=7
Answer:
Ok and the answer is true :)
Step-by-step explanation:
Classify the triangle with sides of lengths 24, 24, and 4.
Answer: Isosceles triangle
Step-by-step explanation:
(1/2a - 1/3b) - (1/3b - 1/2a)
Answer:
a- 2b/3
Step-by-step explanation:
1) Remove the parentheses and combine like terms
Find the circumference of a circle with a radius of 5 mm.
A 307 mm
B 57 mm
257 mm
107 mm
Answer:
31.42
Step-by-step explanation:
circumference of a circle= 2* [tex]\pi[/tex]* r
2* 22/7 * 5 = 31.42 (2 dp)
Item 3 There is a 40% chance that weather causes one or more days of school to be canceled each year. Use the table of simulated values to find the experimental probability that weather will cause a school to be canceled in at least three of the next four school years. Use the digits 1 through 4 as years with a cancellation.
The experimental probability is____%
Answer:
16%
Step-by-step explanation:
Find the measure of angle b
please help:)
The area of a trapezoid is (1/2)h(b1 + b2). A trapezoid has an area of 50 in2. If the bases are 12 and 8 inches, what is the height?
Answer:
5 in.
Step-by-step explanation:
Given that
b1 = 12
b2 = 8
A = 50
Formula is (1/2)h(b1 + b2), on substituting
50 = 1/2 * h(12 + 8)
50 = 1/2 * h(20)
100 = 20h
h = 100/20
h = 5
The height is 5 in
At a high school, 18% of all students are in the school musical and the choir, and 32% of the students are in the school musical. What is the probability that a student is in the choir, given that the student is in the school musical
Answer: 56.25%
Step-by-step explanation:
Probability that student is in the school musical and choir = Probability that student is in choir given that they are in musical * Probability that student is in the school musical
Changing the subject of the formula:
Probability that student is in choir given that they are in musical = Probability that student is in the school musical and choir / Probability that student is in the school musical
= 18% / 32%
= 56.25%
a rectangular prism has a lenghth of 9 inches a width of 4 inches and a height 1 1/2 inches the prism is filled with cubes that have edge lengths of 1/2 inches how many cubes are needed to fill the rectangular prism please help man
108 cubes would be needed to fill the prism
What is the area, in square meters, of the isosceles trapezoid below? 15.8 m 5-4 m 6.6 m Answer: A = ____ m squared
Answer:
5.618773 m2
I hope that this is the answer.
Answer:
answer is 60.48 m squared
Step-by-step explanation:
use the formula
a=1/2(b1+b2)h
a=1/2(15.8+6.6)h
a=1/2(22.4*5.4)
a=1/2(120.96)
a=120.96/2
a=60.48m
Don drives his car 25 km east and then 312 km south. How far is he from his starting point? Round to the nearest tenth.
What is the answer for C = π/2
Answer:
C=5π/2
Step-by-step explanation:
The sketch shows part of the graph y=ab^x
Answer:
a = 3, b = 2
[tex]y = 3\cdot 2^x[/tex]
Step-by-step explanation:
[tex]y = ab^x\\3 = ab^0\\12 = ab^2\\~\\3=ab^0=a\cdot 1 = a\\a = 3\\~\\12 = ab^2 = 3b^2\\4 = b^2\\b = 2 \vee b = -2[/tex]
but we know from the graph being defined and positive, that b cannot be -2
b = 2
The value of a is 3 and value of b is 2.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
The graph is y=abˣ
The points with coordinates (0, 3) and (2, 12) lie on the graph.
We need to find the values of a and b.
The point (0, 3)
3=ab⁰
a=3
Now point (2, 12)
12=ab²
Now plug in a value as 3
12=3b²
Divide both sides by 3
12/3=b²
4=b²
b=2
Hence, the value of a is 3 and value of b is 2.
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WILLL GIVE BRANLIEST PLSSSSSSSSSSSSSSSSSSSS
Answer:
100°
Step-by-step explanation:
If my calculations are correct, I suppose the final answer will be 100 degrees.
If you see it, It's clearly mirrored.
Find the value of x.
Answer:
x=77°
Step-by-step explanation:
All quadrilaterals' interior angles sum to 360°, so to solve one angle in the trapezoid, we can subtract the angles we have from 360.
So x=360-(60+128+95)=77°
x=77°
Find the slope of the line that contains (5,-6) (-6,-6).
Answer:
There is no slope.
Step-by-step explanation:
For each of the figures write an absolute value equation to satisfy the given solution set.
Pls don't show your work, just solve it.
Answer:
x > 1.5
Step-by-step explanation:
I am not sure what exactly the question asks, because there doesn't need to be an absolute value bracket, but from what we can see, x is greater than 1.5, so the equation would be
x > 1.5
Answer:
hi I need help in math please help me
Step-by-step explanation:
will you?
PLEASE HELP ANS HURRY!
Abigail and her children went into a bakery and she bought $11.25 worth of cupcakes and cookies. Each cupcake costs $3.75 and each cookie costs $0.75. She bought a total of 7 cupcakes and cookies altogether. Graphically solve a system of equations in order to determine the number of cupcakes, x,x, and the number of cookies, y,y, that Abigail bought.
Number of cupcakes 2
number od cookies 5
Joshua is going to invest $680 and leave it in an account for 19 years. Assuming the interest is compounded continuously, what interest rate, to the nearest tenth of a percent, would be required in order for Joshua to end up with $1,680?
Answer:
4.8%
Step-by-step explanation:
Answer:4.8
Step-by-step explanation:
Trust
I need help checking over this
Answer:
3
Step-by-step explanation:
2xy⁴ + 2x²y - 3y² + 10x³
In descending order
2xy⁴ + 10x³ + 2x²y - 3y²
Now, In this polynomial the second term is 10x³ and it's degree is 3
Thus, The answer is 3
-TheUnknownScientist
Name the polygon. Then tell whether it is a regular polygon or not a regular polygon.
The polygons name is an octagon and is not a regular polygon
Please help- will give brainlist
Answer:
No its C sorry
Step-by-step explanation:
Answer:
The answer is (c) 25π
Step-by-step explanation:
Area =πr²
r=diameter÷2
10÷2=5
Area=π * 5²
Area =25π
7.2 puzzle time did you hear about the smog worksheet 8th grade answer key
Answer: I Don't Know
PLEASE HELP!!!! What is an equation for the linear function whose graph contains the points (2,7) and (8,10)?
Answer:
2*7=8*10
Step-by-step explanation:
Because x=2,y=7 and x=8,y=10
So x*y=x*y
Armed gunmen shoot a victim who is 5.9 ft tall, from the roof of a building that is 146 ft away. If the roof of the building was 385 ft high, at what angle to the horizon would the bullet have been fired?
The bullet has been fired at an angle of 69.5° to the horizon. This is a problem based on the application of trigonometry.
Trigonometry is a branch of mathematics that deals with the relationships between the angles and sides of triangles.
Given that
Distance between the building and the man = 146 ft.
Height of the man = 5.9 ft.
Height of the building = 385 ft.
So,
Total height = Height of the man + Height of the building
= 5.9 ft. + 385 ft.
= 390.9 ft.
Let the angle to the horizon would the bullet have been fired be x°.
[tex]tanx^o = \frac{390.9}{146}\\tanx^o = 2.677\\x = tan^{-1}(2.677)\\x = 69.5[/tex]
Thus, the bullet has been at an angle of 69.5°.
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