Answers
Answer:
90+30+2x=180
Step-by-step explanation:
2x is an angle, so we need to find its measure
square symbol at corner of triangle means 90 degrees
we know the angle at the top corner is 30 degrees
the sum of all the angles in a triangle is 180 degrees
so the sum of 90 degrees, 30 degrees, and 2x degrees is 180 degrees
translate it to mathematical format: 90+30+2x=180
Related Questions
Does -a squared = (-a) squared Explain why or why not.
Answers
Answer:
Yes
Step-by-step explanation:
This is because based on this equation PEMDAS/Order of operation says that you will get the same answer no matter whether there are parenthesis or not.
20) In the town of Eagle Pass, 5 out of 13 vehicles are trucks. What
percent of the vehicles are trucks? Round to the nearest tenth. *
48.5%
38.5%
24.5%
12.5%
Answers
Answer:
38.5%
Step-by-step explanation:
5/13=38.5.........
Answer:
38.5%
Step-by-step explanation:
1. 5 - 13 = 0.38461538461
2. 0.3846 [1538461] - take away most of the extra numbers
3. 0.3846
4. Round it to the nearest tenth - 0.385
5. Take your answer and times my 100 - 0.385 * 100 = 38.5
and make that into a percentage - 38.5%
PLEASE HELP I DONT GET THIS
Answers
Step-by-step explanation:
(a) yes it is answer.
i cheak it is true.
I have 50 questions to complete in 45 minutes. How much time per question can I have in order to complete all 50 questions in 45 minutes?
Answers
Answer:
54 Seconds per question
Step-by-step explanation:
45/50*60
solve pls brainliest
Answers
Answer:
[tex]2.06[/tex]
Step-by-step explanation:
Divide 33 by 16.
[tex]2.0625[/tex]
6 is in the hundredth place. If you look at the thousandth place, a 2 is placed there, rounding [tex]2.0625[/tex] to [tex]2.06[/tex] in the hundredth place.
Hence, the answer is [tex]2.06[/tex].
2/8+3/8=______ whole
Answers
Answer:
5/8
Step-by-step explanation:
The path of a skateboarder can be modeled by the equation (x – 4)2 = –4(y – 9), where distance is in feet and air resistance is insignificant. If the skateboarder makes a jump from a ramp at x = 0, what is her maximum height and how far is she horizontally from the end of the ramp when she lands?
Maximum height 4 feet; horizontal distance 12 feet
Maximum height 5 feet; horizontal distance 10 feet
Maximum height 9 feet; horizontal distance 12 feet
Maximum height 9 feet; horizontal distance 10 feet
Answers
Answer:
Maximum height 9 feet; horizontal distance 10 feet
Step-by-step explanation:
First, let's get the distance out of they way
When the skateboard lands, her height will be at 0 feet, so y has to equal 0
(x - 4)² = -4(0 - 9)
(x - 4)² = -4(-9)
(x - 4)² = 36
Square root both sides
√(x - 4)² = √36
x - 4 = 6
Note that x - 4 = -6 is also possible
Add 4 to both sides
x - 4 = 6
+ 4 + 4
x = 10
Note that x = -2 is also an answer. but not valid
To find the max height
Remember our zeros? x = -2, x = 10
The number in the middle would be 4
Plug 4 in place of the x in the original equation
(4 - 4)² = -4(y - 9)
(0)² = -4(y - 9)
0 = -4(y - 9)
You can divide both sides by 4
0/4 = (-4(y - 9))/4
0 = y - 9
+ 9 + 9
y = 9
Vertex is (4,9); or in other words, 9 feet is the max height
Sumo wrestler decided to go on a special diet to gain weight rapidly at a constant rate. After 8 months he weighed 138 kilos. He started at 90 kilos.
Complete equation for the relationship between the weight and number of months.
Answers
Answer:
138-90=48
48/8=6
6 kil I s per month
or 13.2 pounds per m o nth appoximztly
what is 25% of 32
explain please
Answers
Answer:
25% of 32
[tex] \frac{25}{100} \times 32 \\ = 8[/tex]
PLEASE HELP ME ASAPP if can of not then just leave it
Answers
Answer:
b
Step-by-step explanation:
PLEASE HELP WILL MARK BRAINLIEST!! (THANK YOU)
Answers
1=58
2=122
3=58
Answer:
1 - 58°
2 - 122°
3 - 58°
Step-by-step explanation:
Important notes:
• Vertical Angles Theorem - The angles that are opposite to each other on an intersection of 2 lines are always congruent.
• Linear Pair - The two angles that are formed when a straight line is split. Linear pairs are supplementary angles.
• Supplementary Angles - An angle pair whose total measure = 180°.
Angle 1 is supplementary to the angle with measure 122°.
So, ∡1 = 180 - 122.
∡1 = 58°
Based on the Vertical Angles Theorem, ∡1 ≅ ∡3, so ∡3 is also 58°.
Based on the Vertical Angles Theorem, ∡2 ≅ 122°, so ∡2 = 122°.
∡1 = 58°
∡2 = 122°
∡3 = 58°
Solving systems of equations by substitution 2x - 3y = 19
x - 2y = 11
Answers
Answer:
[tex]\boxed {\boxed {\sf (5, -3)}}[/tex]
Step-by-step explanation:
We are asked to solve the system of equations by substitution. We must isolate a variable and plug it into the other equation.
We are given these 2 equations;
[tex]2x-3y=19[/tex]
[tex]x-2y=11[/tex]
1. Isolate a Variable
We can easily isolate x in the 2nd equation. 2y is being subtracted from x. The inverse operation of subtraction is addition. Add 2y to both sides of the equation.
[tex]x-2y+2y=11 +2y \\x= 11+2y[/tex]
2. Substitute and Solve for y
x is equal to 11 + 2y, so we can substitute this expression in for x in the 1st equation.
[tex]2x-3y=19[/tex]
[tex]2(11+2y)-3y=19[/tex]
Now we can solve for y by isolating the variable First, distribute the 2. Multiply each term in parentheses by 2.
[tex](2*11) + (2*2y) -3y = 19[/tex]
[tex]22 + 4y-3y = 19[/tex]
Combine the like terms.
[tex]22+y=19[/tex]
22 is being added to y. The inverse operation of addition is subtraction. Subtract 22 from both sides of the equation.
[tex]22-22+y=19-22\\y= 19-22 \\y= -3[/tex]
3. Solve for x
We know that y is equal to -3, so we can plug it back into either original equation and solve for x. Let's use the 2nd equation.
[tex]x-2y=11[/tex]
[tex]x-2(-3)=11[/tex]
Multiply -2 and -3.
[tex]x+6=11[/tex]
6 is being added to x. The inverse operation of addition is subtraction. Subtract 6 from both sides of the equation.
[tex]x+6-6=11-6\\x=11-6 \\x=5[/tex]
We found that y=-3 and x=5. Coordinate points are written as (x,y), so the solution for this system of equations is (5, -3).
What is the answer to this question?
Answers
Answer:
27 23/25
Step-by-step explanation:
To make this more simple, we can separate the fractions into two parts.
We can start off with subtracting the mixed numbers; 43 - 15 = 28
We are now left with 1/2 - 4/7
The lowest common denominator is 14
So we do 1/2 x 7 and 4/7 x 2
7/14 - 8/14 = 1/14
28 - 1/14 is changed to 28/1 - 1/14
Again we have to find a common denominator so we times 28/1 by 14
392/14 - 1/14 = 391/14
Simplified, this is 27 13/14
Given b = 40 and c=-16, b + c is equal to the product
of -4 and what number?
F.-14
G.-6
H.6
J.14
K. 160
Answers
Answer:
-6
Step-by-step explanation:
40-16=24
24/-4=-6
(b + c) is equal to the product of -4 and -6.
What is the Product of two numbers?The product of two numbers is the result you get when you multiply them together.
Given that b = 40 and c = -16
(b + c) = 40 -16 = 24
24 = -4*-6
Hence, (b + c) is equal to the product of -4 and -6.
For more references on Product of two numbers, click;
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find the area of a square with a side length of 1/5 in.
Answers
Answer:
.04 inches squared
Step-by-step explanation:
1/5 of an inch is .2
A = Length times Width
Since squares have 4 equal sides, its length is equal to its width.
0.2 times 0.2 = .04 in^[tex]^{2}[/tex]
What is the first step in simplifying the expression (2-3•4+5)^2 ?
(1) square 5
(2) add 4 and 5
(3) subtract 3 from 2
(4) multiply 3 by 4
Answers
The following is the correct order of steps to simplify an expression.
1.) Parenthesis
2.) Exponents
3.) Multiply and Divide left to right
4.) Add and Subtract left to right.
Since there are parenthesis in the expression, you must do whatever is inside before anything else.
Inside the parenthesis, there is a subtraction, multiplication, and addition. Since multiplication comes before addition and subtraction in the order of operations, you must do that first. Therefore, the correct answer is multiply 3 by 4.
Answer:
(4) multiply 3 by 4
Step-by-step explanation:
(2-3•4+5)²
Firstly multiply 3 by 4
(2-12+5)²
Then add 2 and 5
(-12+7)²
Now subtract -12 from 7
-5²
= (-5)(-5)
= 25
Thus, the first step in simplifying the expression (2-3•4+5)^2 is (4) multiply 3 by 4.
A movie theater sells out 7 times per month. Chloe counted 168 sellouts at the theater. How long was Chloe recording sales? a year
Answers
Answer: 2 years
Step-by-step explanation:
The rate is 7 sellouts/month.
(168 sellouts)/(7 sellouts/month) = 24 months, or 2 years at 12 months/year.
Work out the percentage change when a price of £10 is increased to £12.
Answers
Answer:
20%
Step-by-step explanation:
Use the percent change formula: difference = % * original cost
12 - 10 = 2
The difference is 2 and the original cost is 10. Now, we have the equation
2 = % * 10. We don’t know the percentage right? So now we have to find the percentage. To do this, you will have to do 2 divided by 10, which is 0.20. Lastly, we have to turn 0.20 into a percentage by multiplying it by 100, leaving you with 20%. So therefore, 20% is the percent increase. Hope this helps!
In how many ways can 5 people sit in 5 chairs if Frankie and Johnny want to sit next to each other?
Answers
Answer:
48
Step-by-step explanation:
fraction in simplest form: 2/3 + 1/12
Answers
Answer:
3/4
Step-by-step explanation:
Consider the following polynomial inequality.
x^2(x+5)(x−6)>0
Set one side equal to zero and list the interval endpoints (the only points at which the non-zero expression can change sign).
Separate multiple answers with a comma.
Answers
Answer:
Well, x^2(x+5)(x−6)>0= x<-5 or x>4
Step-by-step explanation:
Just have to simplify it as I can't type the equations right now.
The polynomial expression of inequality is x² ( x + 5 ) ( x - 6 ) > 0 is given by the values ( x < -5 ) and ( x > 6 )
What is an Inequality Equation?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
x² ( x + 5 ) ( x - 6 ) > 0
So , the values of x that are greater than 0 is given by
x² > 0
So , the value of x > 0
when ( x + 5 ) > 0
Subtracting 5 on both sides , we get
x < -5
when ( x - 6 ) > 0
Adding 6 on both sides , we get
x > 6
So , the inequalities are ( x < -5 ) and ( x > 6 )
Hence , the polynomial inequality is solved
To learn more about inequality equations click :
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Stella needs to make at least 8 cakes for a bake sale. A chocolate cake requires 5 cups of flour, and a fruit cake requires 3 cups of flour. She has at most 120 cups of flour.
Which system of inequalities represent the number of chocolate cakes (c) and the number of fruit cakes (f) Stella can make?
A.
B.
C.
D.
Answers
Answer:
A. c + f > 8
5c + 3f < 120
Step-by-step explanation:
Let c = chocolate cakes
Let f = fruit cakes
She must make at least 8 cakes
c+f ≥8
A chocolate cake requires 5 cups of flour, and a fruit cake requires 3 cups of flour and she has only 120 cups of flour
5c+3f ≤120
The two equations are
c+f ≥8
5c+3f ≤120
HELP ME PLZ PEOPLE!!
Answers
Answer:
I may be wrong but i think it's -27
Step-by-step explanation:
-3 ( p - q) exponet of 2
Pemdas : Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
Parentheses
-3 (p - q) exponet of 2
-3 ( 5 - 2 ) exponet of 2
-3 ( 3 ) exponet of 2
Exponents
-3 ( 3 ) exponet of 2
-3 ( 3 ) exponet of 2 = -3 (3 x 3 = 9)
-3 (9)
Multiplication
-3 (9)
Answer: -27
On a trip, a student drove 42 miles per hour for 3 hours and then drove 26 miles per hour for 5 hours. What is the student’s average rate of speed, in miles per hour, for the whole trip
Answers
Answer:
34 mph Is correct answer
Step-by-step explanation:
Average speed = total distance / total time
Total distance = ( 40 × 2 + 30 × 3 )
= 170 miles
Total time = 5 h
So, avg speed = 170/5 = 34 mph
(Hope this helps can I pls have brainlist (crown)☺️)
What type of angle is shown below?
acute
straight
obtuse
right
Answers
Answer:
Acute
Step-by-step explanation:
So, straight would be a line, right would be like a corner of a square, acute would be less than a right, and obtuse would be more than a right but less than a straight.
Edna has a box of chocolates. There are 36 chocolates in the box, and one-ninth of them
contain nuts. How many chocolates in Edna's box contain nuts?
Answers
Answer: 4
Step-by-step explanation:
[tex](36)(\frac{1}{9} )[/tex]
= 4
please give me a brainliest answer
Jaimee is moving in with her dad next year, and she wants to know how much farther her trip to school will be from his house than it was from her mom’s house. Jaimee’s dad lives 12.65 miles from school, and her mom lives 4 1/6 miles from school. About how much farther will Jaimee have to travel to school?
Answers
The base of a triangle is 4 inches more than 3 times the height. If the area of the triangle is 66 square inches, find the base and height.
Answers
Answer:
base = b = 11
height = h = 2
Step-by-step explanation:
.5 * b * h = 11
.5 * (4h + 3) * h = 11
(4h + 3) * h = 22
4h2 + 3h = 22
4h2 + 3h - 22 = 0
(4h + 11) (h - 2) = 0
h = -11/4 OR h = 2
Can someone explain how you do this and not only give me the answer so I could know the formula?
Answers
Answer: 9/7 or 1 2/7
Step-by-step explanation:
Multiply 4 by the denominator and add 1:
29/7
Multiply 2 by seven (denominator) and add 6:
20/7
29/7 - 20/7 = 9/7
9/7 = 1 2/7
7 fits one time into nine and 2 is left.
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pls awnser (immediate)
Answers
Answer:
A. a route more than 27 miles per day.
Step-by-step explanation: