Answers
Answer:
70°
Step-by-step explanation:
An euclidean triangle (a triangle on a straight plane) has sum of three angles equal to 180°.
When we talk about a triangle, we usually talk about an euclidean one.
There are also a non-euclidean triangles which are a triangle on circular plane which has sum of angles above 180° and one that is a hyperbolic triangle version which has sum below 180°.
Back to the question, since we know that the triangle is an euclidean one and thus has the sum equal 180°.
x+20+40+2x-30 = 180
Combine like terms:
3x+30=180
Subtract both sides:
3x+30-30=180-30
3x=150
Divide both sides by 3.
3x/3 = 150/3
x = 50
Since we want to find angle B which has measure of 2x-30, substitute x = 50 in 2x-30.
2(50)-30 = 100-30 = 70
Therefore angle B is 70°
Related Questions
Multiply.
-1/4 times (-2/5
Write your answer in simplest form.
Answers
Answer:
1/10
Step-by-step explanation:
[tex]-\frac{1}{4} * -\frac{2}{5}\\\\= \frac{2}{20}\\\\=\frac{1}{10}[/tex]
Feel free to mark this as brainliest! :D
10+10+10+10-10-10-10-10-10-10-10-10-10-10-9
Answers
Answer:
-69
Step-by-step explanation:
40-100-9
Answer:
9
Step-by-step explanation:
Can someone plss help me with this!!
QUESTION: b(a-6)
Answers
Answer:
5 – 6 (b + 1) = 5 + ( – 6 ) × b + (– 6) × 1 = 5 – 6b – 6 = – 6b – 1. Example 1: Simplify: 5(a – 4) + 3 = 8.
explanation: your welcome
Step-by-step explanation:
what do you mean ? you need to multiply this out ? or what is the problem ?
just to multiply this :
b(a-6) = ba - 6b
or with full symbols for operations
b×(a-6) = b×a - 6×b
if p:q = 1/3:2 and p:r = 1/2:3/4 calculate the ratio p:q:r
Answers
Answer:
p:q=1/3:2=1:6=3:18
p:r=3/4:1/2=3:2
p:q:r=3:18:2
i hope its help to you ✌
PLS help it’s due tomorrow I’ll give brainless
Answers
2y=-3x+8
y=(-3/2)x+4
The slope of the line that is perpendicular to this is 2/3
The perpendicular line passes through the y-intercept of this line, which is 4
The equation of the perpendicular line is:
y= (2/3)x+4
In ∆ABC , if AB = AC and ∠B=80° then ∠C is equal to
a) 20° b) 40° c) 60°
Answers
Answer:
Here,
given, angle B = 80 degree
in ABC triangle, AB = AC
that means angle B = angle C
so angle C must be 80 degree
Step-by-step explanation:
I guess, the options are wrong
or,
may the question asked for angle angle A
which will be = 180- (80+80) = 180 - 160 = 20 degree (option a)
solve the simultaneous equation
3x + y = 8
x - 3y = 11
Answers
Answer:
x = 7 / 2, y = - 5 / 2
Step-by-step explanation:
3x + y = 8 ------> equation 1
3 ( 3x + y = 8 )
9x + 3y = 24 ------> equation 2
x - 3y = 11 ------> equation 3
Add equations 2 & 3,
9x + 3y = 24
x - 3y = 11
_________
10x + 0 = 35
10x = 35
x = 35 / 10
x = 3.5
Substitute x = 3.5 in equation 1,
3x + y = 8
3 ( 3.5 ) + y = 8
10.5 + y = 8
y = 8 - 10.5
y = - 2.5
x = 3.5
= 35 / 10
x = 7 / 2
y = - 2.5
= - 25 / 10
y = - 5 / 2
how to solve step by step
P=2(l+w), solve for w. [hint: isolate w]
Answers
P/2=I+w
W= p/2 - I
can yall help me I really need this done.
Thank you much love
Answers
Let's use the furthest left point on the triangle to figure out the translation.
Blue triangle = (-5,1)
Black triangle = (-3,-1)
To get from -5 to -3 we moved the triangle 2 units to the right, which means that we added 2.
To get from 1 to -1, we moved the triangle 2 units down, which means we subtracted 2.
Rule: {2, -2}
Hope this helps!
A motorcycle travels at a rate of 55 miles per hour for 4 hours. Let y be the distance, in miles, the motorcycle travels for a given amount of time, x, in hours. This situation can be modeled by a linear function. What is the domain of the function?
Answers
Answer:divide 55 by 4
Step-by-step explanation:
(a) If one endpoint is A(-5, 4) and the other
endpoint is B(0, -3), then find the midpoint of
line segment AB?
(b) The coordinates of the endpoints of directed
line segment AMB are A(-5, 4) and B(0,-3). If
AM:MB = 1:1, coordinates of Mare?
Answers
Find the probability of taking a vacation in July.
This is literally all i have to go with can someone help pls.
Answers
Answer:
1/2
Step-by-step explanation:
Complete the table of values for y = - x2 - 6x - 4
Choose five x values so that you accurately show its shape and plot the points
on the graph provided. These should include the turning point and points around it.
8
х
-2
-1
0
1
2
6
у
Х
Х
Х
Х
4
[10]
2.
Drag the crosses to the
correct points on the graph.
X
0
-4
-2
2.
4
[5]
-2
Answers
Answer:
x= -2 —> y= 4
x = -1 —> y = 1
x = 0 —> y = – 4
x = 1 —> y = – 11
x = 2 —> y = – 20
I hope I helped you^_^
Please solve this equation
Answers
Answer:
125
Step-by-step explanation:
Benjamin decides to treat himself to breakfast at his favorite restaurant. He orders chocolate milk that costs
$3.25. Then, he wants to buy as many pancakes as he can, but he wants his bill to be at most $30 before tax.
The restaurant only sells pancakes in stacks of 4 pancakes for $5.50.
1) Which inequality describes this scenario?
Let S represent the number of stacks of pancakes that Benjamin buys. What is the largest number of pancakes that Benjamin can afford?
Answers
Answer:
3.25 + 5.50S is less than or equal to 30
What % of 140 is 84?
Answers
I hope this helps! If can please mark brainiest.
ANSWER:
[tex]60[/tex]
PLS HELP WILL MARK BRAINLEST!!
Answers
Answer:
interior angles of a quadrilateral= 360° (angle sum property
90°+90°+x+(x-42)= 360°
× + (x-42) = 180°
2x = 222°
x = 111°
x - 42 = 69°
please help me to solve problems
Answers
Step-by-step explanation:
a.= 6
c.=7
f.=3
i only know this
3 − 8 x = 8 5 x , written as a decimal
Answers
Answer:
5/16
Step-by-step explanation:
can you please help me
Answers
Step-by-step explanation:
5) angle 5 = 69°
than, angle 10 = 69° ( alternate interior angle )
6) angle 6 = 115° ( alternate interior angle )
7) angle 7 = 118° ( alternate interior angle )
8) angle 11 = angle 4 - 180
→ 72 - 180 = 108°
therefore, angle 11 = 108°
9) angle 14 = 114° - 180
→ angle 14 = 66°
10) angle 12 = 86° ( alternate interior angle)
hope this answer helps you dear...take care!
Answer:
5. 69 degrees
6. 115 degrees
7. 118 degrees
8. 108 degrees
9. 66 degrees
10. 86 degrees
Step-by-step explanation:
pls help me i will brainliest u if u answer it correct
Answers
Answer:
1. D
2. A
3. B
4.C
5. D
6. B
7. B
8.D
9. B
10. A
11. B
12. A
13. C
14. C
15. A
A submarine travels 8.3 km due North from its base and then turns and travels due West for 13.9 km.
How far away is the submarine from its base?
Give your answer rounded to 1 DP
Answers
Answer:
He is 5.6 km away
Step-by-step explanation:
he starts traveling away from base and is 8.3 km away to start with
then he turns west and travels 13.9 km away
what this mean is that you have to subtract the distance he turned from the distance he started off with
ex: 13.9 - 8.3 = 5.9
to get your answer of how far away he is from the base
SHOPPING Steven is saving to buy a new television. If he has saved $1400, or four-fifths of the cost of the television, what is
television?
O A $350
OB $1120
O c $1400
OD $1750
Answers
Answer:
A. 350 ( A fifth of the cost for the television)
D. The cost of the television 1,750
Step-by-step explanation:
350 x 4 = 1,400
1,400 + 350 = 1,750
Consider the linear function f(x)=4x -5.
Find f(3), f(0), f(-2).
Answers
Answer: f(3)= 7, f(0)= -5, f(-2)= -13
Step-by-step explanation:
Substitute and plug in.
For f(3), we plug in 3 for x in the equation.
So, 4(3)-5, which is just 12-5, which is 7
We do the same for f(0),
4(0)-5, which is 0-5, which is -5
Once again for f(-2),
4(-2)-5, which is -8-5, which is -13
Hope this helps!
2. Lilly and Laura pooled their money to purchase
their brother, Liam, a video game for his birthday.
The video game cost a total of $45. If Laura was
only able to contribute 2/3 of what Lilly did, how
much did Laura put toward the present?
F. $18
G. $21
H. $24
J. $27
K. $30
(Retyped)
Answers
Multiply 45 x 2 then divide by 3.
:)
Laura put $18 toward the present. Therefore, the correct answer is F. $18. Let's use variables to represent the amounts that Lilly and Laura contributed.
Let L be the amount Lilly contributed and 2/3L be the amount Laura contributed.
According to the information given:
L + 2/3L = $45
To solve for L, combine the terms with L:
1L + 2/3L = $45
To combine the fractions, find a common denominator:
(3/3)L + 2/3L = $45
Now, the fractions have a common denominator:
(5/3)L = $45
To isolate L, divide both sides by 5/3:
L = $45 / (5/3)
To divide by a fraction, multiply by its reciprocal:
L = $45 * (3/5)
L = $9 * 3
L = $27
So, Lilly contributed $27.
Now, to find how much Laura contributed:
Laura's contribution = 2/3L = 2/3 * $27 = $18
To know more about Laura:
https://brainly.com/question/15453751
#SPJ2
what is the answer to 3x-33=3
Answers
Answer:
12
Step-by-step explanation:
Solve for the partial products then the product. numbers 1 and 11 are don for you
Answers
Answer:
3. 100 + 100
5. 1000 + 310
7. 400 + 16
2. 300 + 24
ight that all I can do for you right now
Step-by-step explanation:
Evaluate the expression when m= -3. m² +8m-7
Answers
Answer:
2
Step-by-step explanation:
When we differentiate this we will be having:
2m+8
therefore;
2(-3)+8
-6+8
= 2
this is an urgent call for help plz help me im kinda lost on this
Answers
Answer:
Step-by-step explanation:
so go to the f g c and multiply my 6
Please please help
Provide the missing statement and reasons for the following proof:
Given: 9(x−6)+41=75Prove: x=889
Given:
9
(
x
-
6
)
+
41
=
75
Prove:
x
=
88
9
Answers
Step-by-step explanation:
Statement. Reason
→ 9(x-6)+41 = 75. Transposing the like terms.
→ 9(x-6) = 75 - 41 Performing subtraction of the term in RHS
→ 9(x-6) = 34 Performing multiplication in LHS.
→ 9x - 54 = 34 Distributive property
→ 9x = 34 + 54 Performing addition of the term in RHS.
→ 9x = 88. Now, transpose 9 from LHS to RHS , it's arthmetic operator will get changed.
→ x = 88/9