Answer:
see explanation
Step-by-step explanation:
Sami's error is in the second line of working
2x = 6x - 4 ← correct substitution ( subtract 6x from both sides, Sami has added 6x )
- 4x = - 4 ← correct second line ( divide both sides by - 4 )
x = 1
Substitute x = 1 into either of the 2 equations and evaluate for y
Substituting into the second equation
y = 2x = 2(1) = 2
solution is (1, 2 )
Can somebody plz help answer the number 10’s questions using the diagram from the bottom left side (only if u know how to do this) thx sm! :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDD!
Answer:
10a: △ABC is an Equilateral triangle with all acute angles.
10b: △BCD is A scalene triangle with all acute angles.
10c: △BDE is An Isosceles triangle with one obtuse angle.
Step-by-step explanation:
10) Looking at the diagram at the bottom left;
- △ABC has 3 equal internal angles and as such, it means it will have 3 equal angles.
Thus, we can classify it as; Equilateral triangle with all acute angles.
- △BCD has 3 unequal angles. Thus, it's 3 sides are not equal. Also all the angles are less than 90°.
We can classify it as;
A scalene triangle with all acute angles
- △BDE has 2 equal angles and one angle greater than 90°. This means it has 2 equal sides.
Thus, we can classify it as;
- An Isosceles triangle with one obtuse angle.
If you are using a calculator to find the measure of an angle in degrees, what type of measure might make you question whether your calculator is in radian mode? Explain.
Answer:
you would do this measure hope this helps
Step-by-step explanation:
Help pleaseeeeeeeeeeeeeeeeeeeeeeeee
Answer:
5x + 4 ≤ 15
Step-by-step explanation:
Since he has only $15, he cannot surpass this amount, BUT the items he purchase CAN equal the same amount so it'd look like this ≤ 15
$4 of jelly beans is a constant
$5 per pound is a variable : 5x
5x + 4 ≤ 15
Someone please help me I’ll give out brainliest please dont answer if you don’t know
Answer:
p=9
Step-by-step explanation:
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)
Please help. Will mark brainliest!!!
Five friends went to an amusement park. The cost of admission per person is x dollars. Three friends paid $30 each for a front-of-line pass. The group had a $20 coupon off the total price. Circle all of the expressions that represent the total cost.
5x + 30 – 20.
3(30) + 2x – 20.
5(x + 30) – 20.
5x + 70
2x + 70.
3(x + 30) + 2x – 20.
3(x + 30 – 20) + 2x.
5x + 10
3(x + 10) + 2x.
3x + 30 + 2x – 20.
3x + 90 + 2x – 20
5x + 30
The dot plot shows the number of pencils each boy has at his desk in class.
:
++
1 2 3 4 5 6
Number of Pencils at Desk
Find the median for the number of pencils.
Answer:
The median is 2
Step-by-step explanation:
Here, we want to get the median for the number of pencils
Firstly, we have to write out the numbers that form the box plot ; we have this as;
1,1,1,2,2,2,2,3,3,5
the median is sum of the 5th and 6th term divided by 2
The 5th term is 2
The 6th term is 2
So the median is;
(2 + 2)/2
= 4/2 = 2
Find the exact value of x.
Do the side lengths form a Pythagorean Triple?
Answer:
x=34
no
Step-by-step explanation:
a=16 b=30 c= x
16^2+30^2= c^2
256+900= c
c=√1156
√1156=34
2. Find the volume. *
10 16 8
Answer:
1280
Step-by-step explanation:
16 times 8(times 10)
Find the distance between the points given.
(3, 4) and (4,7)
0 212
O 10
03
the distance between these two points is 3
Which equation represents a linear function?
Answer:
C
............................
12. Determine the missing angle measures.
M<1
M<3
Answer:
3 is 15 degrees and 1 is 67 degrees
Calculate the sum
32+(-40)
Divide 9 by 2 , then multiple p by the result
Answer:
9p/2 OR 4.5p
Step-by-step explanation:
9/2 ×p = 9p/2
9/2 =4.5×p
= 4.5p
Can anyone help me pls? Ur a legend if u can!
At a middle school 82 students have freckles. There are 352 students at the school. To the nearest tenth of a percent what percent of students have freckles?
Answer:
23.3%
Step-by-step explanation:
divide
82/352
.2329
aka
23.29%
round
23.3%
What is the slope of a line perpendicular to the line whose equation is x+ 3y = -15 Fully simplify your answer.
Answer:
3
Step-by-step explanation:
We can find the slope of the given line in this two way:
1) the faster is calculate -a/b where a is the number the multiply x and b is the number the multiply y. In this case we have -1/3
2) the second method is rewrite the equation in slope intercept form and find the therm that multiply x
3y = -x-15
y = -1/3x - 5
Also in this case we have -1/3
Two perpendicular lines have the the product of the their slope that is -1
So the slope that we are finding is 3
In fact = 3 x -1/3 = -1
Will put brainliest? Plsssssssss help!
Answer:
C i think
Step-by-step explanation:
Answer:
14,13 ft^2
Step-by-step explanation:
First of all we have to find the radius, that is diameter/2
In this case: 6/2 = 3ft
the area of a circle is:
radius^2 x π
in this case = 3^2 x 3,14 = 28,26 ft^2
The shape is a semicircle so we have to divided the area by two
28,26 : 2 = 14,13 ft^2
i need help please !!
Answer:
Step-by-step explanation:
Number of people 41 - 50 who read DIY books = 69
Total number of people = 750
% reading DIY = (69/750) * 100 = 9.2%
A board game has a spinner with four different options of how a player can move: move forward 1 space, move forward 2 spaces, move
backward 1 space, or lose a turn. The probabilities of spinning each option are shown below. A. What is the probability of a player moving forward on his or her turn?
B. What is the probability of a player either moving backwards or losing a turn.
The answers are:
A. 7/12
B. 5/12
Which function below has the following domain and range?
Domain: {-9,-5,2,6,10}
Range: {-2,0,8}
A: {(-2,-5),(8,10),(0,6),(-2,-9),(0,2)}
B: {(-9,-2),(-5,0),(2,8),(6,5),(10,9)}
C: {(-9,10),(-2,8)}
D: {(2,0),(-5,-2),(10,8),(6,0),(-9,-2)}
Answer:
D is the right answer because it has all the elements of domain and range
Help I don’t know the steps
Answer:
down below
Step-by-step explanation:
straight lines are 180 degrees and you have 2 angles on a line. one of which is 72 and the other is unknown. It is solved for below.
[tex]180=72+x\\180-72=72+x-72\\108=x[/tex]
your missing degree is 108.
i may not be right, if i'm not i am very sorry.
The temperature at 6:00 P.M. in Frostfrozen, Antarctica was "37 °C.
If the temperature dropped 8.1 °during the next hour, what
was the temperature at 7:00 P.M.?
Answer:
37.0 Your answer is 28.9 Celsius
- 8.1
---------
28.9
Step-by-step explanation:
Fahrenheit:
90.5 Fahrenheit
Celsius:
23.7
Hi! Please explain how you got your answer thanks! :))
Answer:
a + b = 780
Step-by-step explanation:
If we subtract the two equations we can ”eliminate“ a and b and find the value of z.
a-a = 0
b-b = 0
-10z = -700
z = 70
now we have to subistitute this value in the two equations
a + b -4(70) = 500
a + b + 6(70) = 1200
a+b - 280 = 500
a + b + 420 = 1200
If we simplify we have
a + b = 780
a + b = 780
Solve. Show all of your work.
1. A construction worker was preparing wood for a project.
He had 1/4 of a meter of wood that he needed to cut
into equal size pieces. If he cut the wood into 6 pieces,
how long will each piece be?
Answer:
4.17 cm
Step-by-step explanation:
I took 1m=100cm
Then divided the cm by 4 to get the 1/4 of a meter which is 25
25/6 is 4.16repeating so I rounded it up to 4.17.
If your teacher wants it in a fraction I would state it as 25/6 cm
GE = 3x - 11 FD = 2.x Find GE
Can someone help me??
Answer:
22
Step-by-step explanation:
Given the following
GE = 3x - 11 FD = 2x
Let us assume GE is parallel to FD, hence GE = FD
3x - 11 = 2x
3x - 2x = 0+11
x = 11
Get GE
GE = 3x - 11
GE = 3(11)-11
GE= 33 - 11
GE = 22
Hence the length of GE is 22
What is the relationship between the side lengths of the white square and the side lengths of the triangles?
es -)
A)
Each side of the white square is congruent to shorter leg of a triangle.
B)
Each side of the white square is congruent to the longer leg of a triangle.
Each side of the white square is the hypotenuse of a triangle.
D)
Each side of the white square is congruent to both legs of the triangles.
Answer:
C) Each side of the white square is the hypotenuse of a triangle.
Step-by-step explanation:
It can be observed in the diagram that the sides of the white square forms part of the sides of the triangles. Since the triangles formed are right angled, then the longest side of the triangle is the sides of the white square.
Therefore it can be inferred that, each side of the white square is the hypotenuse of a triangle. thus the correct choice of answer is C.
A student wrote the expression -3(8 - 10) as - 24 + 30. Which property did the student use?
PLZZZ HELP!!! ILL GIVE BRAILIEST TO WHOEVER ANSWERS FIRST CORRECTLY!!
An amusement park charges $4.25 for admission, plus $1.50 for each ride ticket. Chase has $30 to spend on admission and ride tickets. What is the greatest number of ride tickets Chase can buy?
Answer:
17 tickets
Step-by-step explanation:
Please help me quick
Answer:
c
Step-by-step explanation:
can i get brainlist because brainly deleted all my answers for no reason
The function f(x)=5x5−3x3+1 is/has
Answer:
15
Step-by-step explanation:
PEMDAS
so do multiplication first
25-9+1
then do addition
25-10
then do subtraction
so
15
