Angle B and angle C are complementary. If angle B is five times the size of angle C what is the measurements of both angles.
Step-by-step explanation:
Let Angle C be x
So angle B will be 5x
Since they both are complementary, we can come up with this equation.
x+5x=90 degrees
6x=90 degrees
x=90/6,x=15
Measures of Angles
Angle C=x=15 degrees
Angle B=5x=5*15=75 degrees
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What are the coordinates of the vertex of the parabola?
Answer:
A
Step-by-step explanation:
f(x) = a(x – h)^2 + k
Vertex (h, k)
according to the equation h= -3 k= -8
Brittany and Stephanie went shopping together and spent $118 altogether. Stephanie spent $8 less than twice the amount as Brittany. How much did each girl spend
Answer:
4. x+y=11
3x+5y=45
Step-by-step explanation:
If you are finding the median of a data set, are you finding a measure of center or a measure of variation?
Median is a measure of center. To find the median, you find the middle, or center, of the data set. Mean would be an example of a measure of variation.
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hope it helps
What does the symbol≅for?
Answer:
approximately equal to/approximate equality/congruent or congruence (in geometry)
Answer: It means Approximate equality Congruence
Which sum or difference is modeled by the algebra tiles?
A. (x2 - 2x + 3) - (-x - 4x - 2) = 2x - 1
B. (x - 2x - 3) + (x2 - 4x + 2) = 2x - 1
C. (x2 - 2x-3) - (x + 4x + 2) = 2x - 1
D.(X2-2x-3) + (-x2 +4x+2)=2x-1
The sum or difference modeled by the algebra tiles shown in the image is: [tex](x^2 - 2x - 3) - (x + 4x + 2) = 2x - 1[/tex]. The correct option is C.
What is algebra?Algebra is a branch of mathematics that deals with symbols and the rules for manipulating those symbols.
The tiles on the left side of the equation represent the polynomial x^2 - 2x - 3, which can be factored as (x - 3)(x + 1).
The tiles on the right side of the equation represent the polynomial -x - 4x - 2, which can be simplified as -5x - 2.
Substituting these expressions into the original equation, we get:
(x - 3)(x + 1) - (-5x - 2) = 2x - 1
Expanding the left side and simplifying, we get:
[tex]x^2 - 2x - 3 + 5x + 2 = 2x - 1[/tex]
Simplifying further, we get:
[tex]x^2 + 3x - 2 = 2x - 1\\x^2 + x - 1 = 0[/tex]
This is a quadratic equation that can be factored as (x + 1)(x - 1) = 0, which has roots x = -1 and x = 1.
Therefore, the sum or difference modeled by the algebra tiles is C. [tex](x^2 - 2x - 3) - (x + 4x + 2) = 2x - 1.[/tex]
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Define the following vocabulary words
A.Factor
B.Variable
C.Product
D.Coefficient
Answer:
c
Step-by-step explanation:
Answer:
A factor is a circumstance or action that will/would influence an outcome.
A variable is something that is liable to change or something that isn't temporary.
A product is a result of an action or a process.
Coefficient means a quantity is being multiplied by the variable, for instance:
4 (the coefficient) X (the variable) - (the operator) 7 (the constant) = 5 (the constant)
What that looks like is: 4x-7=5.
The topics is law of cosines and sines and I really need help with this
Answer:
i guess it is correct
For the triangle shown, find sec x
Answer:
Step-by-step explanation:
Using the Pythagorean Theorem, (7)2 + (5)2 = c2 ⇒ c = 72
.
Since x = 1 /cos x = hypotenuse /adjacent , then sec x = √ 74/7
please help me ill mark you brainlyest
Answer:
A is false it said it could be greater than 35 or equal to and 100 x 5 = 500 + 1 = 501 therefore a is false
B is false 6.8 could be possible and it could be a decimal it can't only be a whole number
C is false 6 4/5 is a solution so c is false
D is I'm not sure, I think infinite except for 7 and below so maybe true
E is false because any number greater than 7 that are multiplied to 5 can be as long as its greater than or equal to 35
Ok this is what I think. Id rather wait for more answers to be sure thank you.
Solve the quadratic by factoring.
x^2+ 15x = 5x – 24
Use the expression 14X + 28Y + 21.. what is the greatest common factor
Answer:
1
Step-by-step explanation:
None of these numbers are alike terms so the only number left is 1.
i NEED UR HELP CAUSE I DON'T KNOW WHAT I'M DOING PLS
Answer:
D) x > -4
Step-by-step explanation:
6x - 5 > -29
6x > -29 + 5
6x > -24
x > -4
Please help, Trigonometry. Will mark brainliest.
Answer:
Cosine = Adjacent/Hypotenuse
Cosine A = 267/391
Cosine^-1 = 267/391
Angle A = 47 degrees.
Let me know if this helps!
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Central Fencing has been hired to fence the perimeter of a rectangular field. The length of the field is 42 - W feet, where W is the width of the field, and the area of the field must be more than 432 square feet. Find the bounds on the width of the field.
Answer:
10.3 is the width
Step-by-step explanation:
set up an equation
42w=432
divided both sides by 42
W=10.2857142857
to rounded it to nearest tenth it will be 10.3
to check your answer multiply 10.3 by 42 it will be 432
check check
Answer:
18 ≤ w ≤ 24
Step-by-step explanation:
A = l * w
A ≥ 432 sq ft.
l = 42 - w
432 ≤ (42 - w) (w)
432 ≤ -w² + 42w
w² - 42w ≥ 432
Substitute values for w
w = 18
w = 24
Jose has $400 in the bank. Each week, he saves $130. He wants to know when he will have at least $1000
Answer:
Do 400 x 130 then whatever you get divide it by 1000
Step-by-step explanation:
Answer:
In at least 5 weeks, Jose will have at least 1000$
Step-by-step explanation:
Hope this helps!!!
Christopher has a points card for a movie theatre
He receives 30 rewards points just for signing up
He earns 5.5 points for each visit to the movie theatre
He needs 63 points for a free movie ticket
Write and solve an equation which can be used to determine x, the number of visits Christopher must make to earn a free movie ticket
Answer:
63 = 5.5 * x + 30
x = 6
Step-by-step explanation:
Answer:
63 = 5.5 * x + 30
x = 6
Step-by-step explanation:
just answered the question
Explain how you found the unit rate for the previous activity. Then, explain how you used this information to graph this relationship.
Answer:
.
Step-by-step explanation:
Please what’s the value of x
Select all the expressions that show the distance between points A and B.
08-1
0 -1-(-8)
-8+ (-1)
1-81 - 1 - 1
PLEASE HELP !
Answer:
0 -1-(-8)
0-1=-1
-1-(-8)
-1+8
=7
Ming is cooking pancakes. The recipe calls for 19 cups of flour. She has already put in 8 cups. How many more cups does she need to put in?
Ming still needs to put in 11 cups of flour to make the recipe.
EquationEquation is an expression used to show the relationship between the two or more variables and numbers.
Let x represent the number of cups of flour remaining for Ming to put in. The value of x can be gotten from the formula:
x + 8 = 19
x = 11 cup
Ming still needs to put in 11 cups of flour to make the recipe.
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Figure ABCD is a trapezoid. Find
the value of x.
3x+3
B
13
4x+2
A
D
X = ?
Answer:
x = 3
Step-by-step explanation:
The midsegment is half the sum of the parallel bases, that is
[tex]\frac{1}{2}[/tex] (3x + 3 + 4x + 2) = 13
[tex]\frac{1}{2}[/tex] (7x + 5) = 13 ( multiply both sides by 2 )
7x + 5 = 26 ( subtract 5 from both sides )
7x = 21 ( divide both sides by 7 )
x = 3
How many groups of 2/3 are in 5?
Answer:
7.5
Step-by-step explanation:
Helpppppp MEEEEE PLSSSS
The work of a student to solve the equation 2(3x − 4) = 8 + 2x + 4 is shown below: Step 1: 2(3x − 4) = 8 + 2x + 4 Step 2: 5x − 6 = 12 + 2x Step 3: 5x − 2x = 12 + 6 Step 4: 3x = 18 Step 5: x = 6 In which step did the student first make an error and what is the correct step? (5 points) Step 2; 6x − 6 = 2(6 + x + 2) Step 2; 6x − 8 = 12 + 2x Step 3; 5x − 2x = 12 − 6 Step 3; 5x + 2x = 12 + 6
Answer:
B: Step 2; 6x − 8 = 12 + 2x
Step-by-step explanation:
the student added 2 x 4 during the distributive property but you must multiply so you get 8 rather than 6.
Answer:
b
Step-by-step explanation:
a different rectangle has a perimeter of 144 feet. The difference between its length and width is 12 feet. Solve it by elimination.
Answer:
12
Step-by-step explanation:
A Speedboat increases in speed uniformly from 20m/s to 30m/s for 12.2 s. What is the acceleration of the speedboat?
Answer:
0.82 m/s^2
Step-by-step explanation:
Given data
initial velocity=20m/s
Final velocity= 30m/s
Time = 12.2s
Applying the formula
a= v-u/t
a= 30-20/12.2
a= 10/12.2
a= 0.819
a=0.82 m/s^2
Themla spent 1/6 of her weekly allowance on dog toys. 1/4 on a dog collar, and 1/3 on dog food. What fraction of her weekly allowance is left?
Answer:
¼ remaining
Step-by-step explanation:
Convert to common numerator of 12:
1/6 = 2/12
1/4 = 3/12
1/3 = 4/12
Total: 9/12
1 - 9/12 = 3/12 = ¼
Niles and Bob sailed at the same time for the same length of time. Niles' sailboat traveled 30 miles at a speed of 6 mph, while Bob's motorboat traveled 70 miles at a speed of 14 mph. For how long were Niles and Bob traveling?
Answer: 5 hours
Step-by-step explanation:
As both of them sailed for the same time, take the speed and distance of either of them to find the time they traveled:
Niles' Time = Distance / speed
= 30 / 6
= 5 hours
Bob's time = 70 / 14
= 5 hours
Find the distance between the points
Answer:
5
Step-by-step explanation: