In the figure below, ma = 7x + 5 and mb = 28x. The angles are
supplementary
Find the ma
b
a
40 degrees
140 degrees
35 degrees
5 degrees
Answers
Step-by-step explanation:
Since the 2 angles are supplementary,
(7x + 5°) + 28x = 180°.
=> 35x + 5° = 180°
=> 35x = 175°
=> x = 5°.
Hence Angle A = 7(5°) + 5° = 40°.
Related Questions
Pls help me I’m failing math
Answers
Answer: See explanation
Step-by-step explanation:
The best deal would be either I or III. Either would result in a discount of 25% which is better than the other which is 20%
Helpp picture about will mark
Answers
Answer:
36
Step-by-step explanation:
3*2=6
6^2 is 36
The brown family might plant 1/8 tomatoes, 1/8 cabbage, and 1/8 peppers. If they do, what fraction of their garden will be unplanted?
Answers
Triangle ABC has A(-3,6),B(2,1), and C(9,5) what the length of side AB? What the length BC what the length AC and what ABC
Answers
Answer:
AB = 5√2
AC = √145
BC = √65
Step-by-step explanation:
Using the formula for calculating the distance between two points
D = √(x2-x1)²+(y2-y1)²
For AB A(-3,6),B(2,1),
AB = √(2+3)²+(1-6)²
AB = √(5)²+(-5)²
AB = √25+25
AB = √50
AB = 5√2
For AC A(-3,6) and C(9,5)
AC = √(9+3)²+(5-6)²
AC = √(12)²+(-1)²
AC = √144+1
AC = √145
For BC B(2,1), and C(9,5)
BC = √(9-2)²+(5-1)²
BC = √(7)²+(4)²
BC = √49+16
BC = √65
Since All the sides are difference, hence triangle ABC is a scalene triangle
Factor completely (x2 +x -6)(2x2 + 4x)
Answers
Answer:(x - 2) (x + 3) ⋅ 2x (x + 2)
Step-by-step explanation: factor the polynomial
Another algebra question 8 POINTS
Answers
(5x +2) + (4x -5)
Remove the parenthesis:
5x + 2 + 4x -5
Now combine the like terms:
5x + 4x = 9x
2 - 5 = -3
Put the two terms back together to get: 9x-3
Of 290 students in school,20%wear glasses. Is 75,95,58, or 119 a reasonable estimate for the number of students wearing glasses
Answers
Answer: 58
Step-by-step explanation: can't really explain, but I promise that's right
Answer:
58 is a reasonable estimate for the number of students wearing glasses.
Step-by-step explanation:
20% of 290 ( or 290*0.2) is equal to 58.
Therefore, the answer is 58.
I hope this helps!
Veronica's Violin Village sold 400 violins in the month of July. In the month of August they decreased
their sales by 84 violins. By what percent did they decrease their monthly sales of violins from July to
August?
Answers
Answer:
21% is the answer :)
I want to know the exact height of the big column
Answers
Answer:
Height of the red bar is 8m
4.Erik works 42 hours a week making $11 hour? His employer pays time and a half for hours over 40. Find his gross pay.
Answers
Answer:
$473.00
Step-by-step explanation:
Regular pay = 11*40 = 440.00
Overtime = (11*1.5)*2 = 33.00
Gross = 440 + 33 = 473.00
[5y]^4 when y= 2 Evaluate the expression
Answers
Answer:
10000
Step-by-step explanation:
Well substitute it
(5*2)^4
now follow order of operations (Parenthesis, exponents, multipication-division left to right, etc.)
5*2=10
10^4=10000
so the answer would be
10000 if y is 2
Answer:
10,000
Step-by-step explanation:
First, let's do the brackets (because of PEMDAS). We know that y = 2, so we multiply 2 and 5 to get 10. Now, we have to solve 10^4. To get 10^4, multiply 10 by itself four times. That gets us 10,000.
The slope of the line tangent to the curve 3x^2-2xy+y^2=11 at the point (1, -2) is ?
Answers
Given :
A curve : 3x² - 2xy + y² = 11
To Find :
The slope of the line tangent to the curve 3x^2-2xy+y^2=11 at the point (1, -2).
Solution :
Differentiating given curve w.r.t x is :
6x - ( 2y + 2xy' ) + 2yy' = 11
Putting the point ( 1, -2) in above equation, we get :
6 - ( 2(-2) + 2y' ) - 4y' = 11
6 - ( -4 + 2y' ) - 4y' = 11
10 - 6y' = 11
6y' = -1
[tex]y' =\dfrac{-1}{6}[/tex]
Therefore, the slope of the line tangent to the given point is [tex]y' =\dfrac{-1}{6}[/tex] .
Answer:
5/3
Step-by-step explanation:
The previous explanation was incorrect because they forgot to differentiate the other side of the equation (11), which would actually become 0, and make the answer 5/3
BE FAST IM TIMED
An education researcher is interested in comparing the learning outcomes of students who are taught a lesson using five different teaching techniques. There are 75 students in the school who can participate in the experiment. Using a table of random digits, the researcher will randomly place the students into five equally sized treatment groups suitable for comparison.
Which number range would be needed to label the students correctly?
A 0–4
B 1–5
C 00–75
D 01–75
Answers
Answer:
D
Step-by-step explanation:
Answer:hope it helped
Step-by-step explanation:
c answer
5-37. Richard's strategy for changing a percent to a decimal is to put the decimal point in front of the percent
number. An example of his work is shown at right. Do you agree with Richard's method? Explain your reasoning.
8%=0.8
80%=0.80
800%=0.800
Answers
9514 1404 393
Answer:
no
Step-by-step explanation:
The percent symbol (%) is a shorthand way to write "divided by 100" (/100). The percent can be changed to a decimal by making that substitution.
8% = 8/100 = 0.08
80% = 80/100 = 0.80
800% = 800/100 = 8.00
Effectively, the change to a decimal is made by moving the decimal point two places to the left. Richard's strategy only works if the percentage has 2 digits left of its decimal point. It does not work in the general case.
Sarah bought 4 pens for $1.00. How many did she pay for each pen?
Answers
Answer:
Sarah paid 25 cents for each individual pen
Step-by-step explanation:
Answer:
she paid .25 cents for each
Step-by-step explanation:
1.00÷4=.25
A warehouse has 10,032 batteries. The warehouse ships the same number of batteries to 12 stores. How many batteries were shipped to each store?
Answers
Answer:
836 batteries were shipped to each store
Step-by-step explanation:
Will give brainliest to first right answer. Before a sale an items price was $28.00 then after being discounted the price was $14.60. What was the discount for the item?
Answers
Answer:
25 percent off. I think, tell me if i am wrong.
Imagine that each of these 40 students then made their choices from the list of four personality
types. What proportion of the 40 students needs to match correctly to provide convincing
evidence that there is a connection between sign and personality type? Explain your reasoning.
Answers
What is the circumference of this circle
Answers
Answer: 12.56 km
Step-by-step explanation:
C=2(3.14)r
C=2(3.14)2
C=12.56
How many times greater is the value of the 4 In 42,672 than the value of the 4 in 37,426
Answers
Step-by-step explanation:
it 100 more than the 4 in 37,426
The angle of elevation of the top of the building at a distance of 50 m from its
foot on a horizontal plane is found to be 60 degree. Find the height of the
building. *
86.6 m
50 m
60 m
50.3 m
Answers
Answer:
this is so easy
see answer
answer from india
mark me as brainlist
Solve this system of linear equations: 4x - 2y = 8
y = 3/2x - 2
(If you explain simply and correctly, I'll give extra points)
Answers
Answer:
Step-by-step explanation:
Here you go mate
PEDMAS
Parenthesis
Exponents
Division
Multiplication
Addition
Subtraction
Step 1
4x - 2y = 8 ,y = 3/2x - 2 equation/Question
Step 2
4x-2y=8 Substitute
4x-2( 3 /2 x-2)=8
Step 3
x+4=8 simplify
x=4
Step 4
y= 3 /2 x-2 substitute 4 for x
y= 3 /2 (4)-2
Step 5
y= 3 /2 (4)-2 simplify
y=4
answer
x=4
y=4
If 5 students play the flute and 7 students play the clarinet, what is the ratio of clarinet players to fluteplayers?
Answers
Answer:
5:7
hope it helps........
Which of the following statements is NOT true?
1) A well-designed experiment is the only legitimate way to establish a cause-and-effect relationship between two variables.
2) We can use results from an observational study to test a claim about a population. 3) When an observational study has a large sample and follows people for many years, we can use the results to establish a cause-and-effect relationship between two variables.
4) When many observational studies together meet specific criteria, the results can provide varying degrees of evidence for a cause-and-effect relationship between two variables. But we should be cautious in interpreting such results.
Answers
To make a profit a clothing store sells board shorts at on trade and 115% of the amount they paid for them. How much did the store pay for the board shorts shown? Give me work and I'll mark you brainlest and 15 points.
Answers
Answer: $24.34
Step-by-step explanation:
28/X=115/100
Part/Whole= %/100
28=1.15*x
Help me I’ll mark you brainly!
Answers
−
1
−
6
x
2
−
1
6
x
4
Answer:
- 6x² -x⁴/6 -1 because 6x² is co effectient
If f(x) = 3x and g(x) = -2x + 7, what is f(g(-2))?
Answers
Answer:
9
Step-by-step explanation:
-2 x -2 + 7 = 3 x 3= 9 I'm pretty sure that's it I did it like a month ago just realized I did it wrong sorry
7. The ratio of strawberries to grapes in the fruit salad is 3:9. The ratios of strawberries to honeydew is 6:14. If there 36 grapes, how peony strawberries. Match the fractions that are equivalent to each other
Answers
Answer:
12 strawberries
Step-by-step explanation:
Let
[tex]S = Strawberry[/tex]
[tex]G = Grape[/tex]
[tex]H = honeydew[/tex]
Given
[tex]S : G = 3 : 9[/tex]
S : H = 6 : 14
Required
Solve for S when G = 36
To do this, we make use of the first ratio
[tex]S : G = 3 : 9[/tex]
Substitute 36 for G
[tex]S : 36 = 3 : 9[/tex]
Convert ratio to fractions
[tex]\frac{S}{36} = \frac{3}{9}[/tex]
[tex]\frac{S}{36} = \frac{1}{3}[/tex]
Cross Multiply
[tex]S * 3 = 36 * 1[/tex]
[tex]3S = 36[/tex]
Divide through by 3
[tex]\frac{3S}{3} = \frac{36}{3}[/tex]
[tex]S = \frac{36}{3}[/tex]
[tex]S = 12[/tex]
The (b) part of the question can not be solved with the given details.
However, some equivalent fractions are:
[tex]\frac{1}{2} = \frac{2}{4}[/tex] ---- 0.5
[tex]\frac{5}{15} = \frac{10}{30}[/tex] --- 0.33
[tex]\frac{4}{7} = \frac{8}{14}[/tex] --- 0.57
To get the equivalent fractions, you have to convert the fractions to decimal and then make comparison.
Which expression is equivalent to the expression shown?
2
4 x4
48
166
46
PLZ ANSWER I WILL GIVE BRAINLIST
Answers
Answer:
5^8 .. you have to do it like this 5^(2×4)
Hope i helped :)
What is the product of (5.9 x 10^3) and (5.9 x 10^4) expressed in scientific notation?
please help
Answers
Answer: 3.481 x 10^8
:)
Step-by-step explanation:
(5.9 x 10^3)(5.9 x 10^4)
(5.9 x 5.9) (10^3 x 10^4)
34.81 x 10^7
= 3.481 x 10^8