Triangle ABC is isosceles. What is the measure of angle C?
A. 25°
B. 30°
C. 60°
D. 75°
Answers
The answer is D, 75°.
All the interior angles of a triangle add up to 180°. With this information, we can set up this equation:
(x + 5) + (3x) + (3x) = 180
Combine like terms.
(x + 5) + (3x) + (3x) = 180
7x + 5 = 180
-5 -5
7x = 175
/7 /7
x = 25
Now, since this is an isosceles triangle, we can easily substitute the value of x into 3x. 3 • 25 = 75 which is 75°.
Related Questions
Select the best answer.
sin(3pi/3 + x) =
• sinx
• -sinx
• -cosx
• cosx
Answers
Answer:
-sin x
Step-by-step explanation:
sin(3π/3+x)=sin (π+x)=-sin x
or
sin (π+x)=sin πcos x+cos π sin x=(0)cos x+(-1)sin x=0-sin x=-sin x
3x3 + 4x2 - 8x + 18
What is the constant term?
Answers
Answer:
18
Step-by-step explanation:
18 is the constant term since it contains no variable.
What expression is equivalent to 5(x+7)
Answers
Answer:
5x + 35
Step-by-step explanation:
SOMEONE PLEASE HELP MEEEEE
Answers
Answer:
Area = 23.12 cm²
perimeter = 24.28 cm
Step-by-step explanation:
top shaded region is circular arc with 90° sector angle
so perimeter of arc is 90 / 360 * 2πr
here radius of arc is half the length of square side
r = 6.8/2 = 3.4
top area shaded perimeter = 90/360 * 2 * 3.14 * 3.4
= 1/4 * 2 * 3.14 * 3.4
= 5.338
bottom region perimeter is also same
total perimeter of shaded region is = side + side + two arcs
= 6.8 + 6.8 + 2 * 5.338
= 13.6 + 10.676
= 24.276
= 24.28
Area of top shaded region is 90/360 * πr²
A = 1/4 * 3.14 * 3.4²
= 9.0746
bottom shaded region area is half of area of square - area of bottom arc
= 6.8 * 3.4 - 9.0746
= 23.12 - 9.0746
= 14.0454
so total area of shaded region is 9.0746 + 14.0454
= 23.12
or you can just calculate area as half of area of total square = 6.8² / 2
= 23.12
3. Find the difference between the two expressions.
(3/5x - 5y) - (4/5x + 2y
Answers
Answer:
[tex]^{-1}/_{5}x-7y[/tex]
Step-by-step explanation:
Our equation is
[tex](^{3}/_{5}-5y)-(^{4}/_{5}+2y)[/tex]
now we distribute the - and we get
[tex]^{3}/_{5}-5y-^{4}/_{5}-2y[/tex]
[tex]Combine[/tex] [tex]like[/tex] [tex]terms[/tex]
and now we have [tex]^{-1}/_{5}x-7y[/tex]
The _______ of an observation is determined by how far the values of the independent variables are from their means.
Answers
Answer:
The leverage of an observation is determined by how far the values of the independent variables are from their means.
Cumulative GPA (CGPA) of a student is defined as the sum of the product of all grades multiplied by the credits of the corresponding class, divided by the sum of all credits. For instance consider a student took three courses with 3, 3, and 4 credits. Assume that the grades of this student from these courses are 4.0, 3.7, and 3.3.
The CGPA of this student is: __________
Answers
Answer:
probably about 3.5
Step-by-step explanation:
I need help please I don't understand this
Answers
Answer:
So
12 would round to 12
0.49 would round to 0
or could possibly round to 0.50
Step-by-step explanation:
So, 12 x 0.49
would be about
12-13
#Nova
Have a good day
Sally I went to the store and when is it by potato she noticed a sign that said six potatoes cost nine dollars
Answers
Answer:
Sally shouldn't be alone she has down syndrome.
Step-by-step explanation:
At a store, 4 shirts cost $25 and 6 shirts cost $37.50.
Part A:
Is there a proportional relationship between the shirts and their cost? If so, what is the unit rate for one shirt?
Answers
Solve ^3/x^2-8=2 pls help
Answers
Answer:
its the first one
Step-by-step explanation:
Steven and his family ordered a meal that cost $136.50. Steven paid 14% sales tax and left a 20% tip on $136.50. What was the total cost?
Answers
Answer:
182.91
Step-by-step explanation:
First multiply the cost of the meal by the sales tax percentage as a decimal (.14)
[tex]136.50*.14=19.11[/tex]
Then multiply the cost of the meal before sales tax by the tip percentage
[tex]136.50*.2=27.30[/tex]
Then add the tip and the sales tax on top of the cost of the meal to calculate the total cost
[tex]136.5+19.11+27.3=182.91[/tex]
(NO LINKS AND DON'T COMMENT IF YOU DON'T KNOW)Compare the ratios using the models. Which statements are true? Check all that apply. 7 to 16 The model for the ratio 7 to 16 should show 7 cells shaded. The model for the ratio 6:8 should show 8 cells shaded. The ratio 7 to 16 is greater than 6:8. The ratio 6:8 is greater than the ratio 7 to 16. 6.8
Answers
Answer:
Step-by-step explanation:
Hi sorry if I’m bugging just trying to help out by getting Them B bye
What are the coordinates of point Q?
How many units below the x-axis is point Q?
Will point Q' be above or below the x-axis?
How many units above or below the x-ax will it be?
Does reflection across the x-axis change the x-coordinates? If yes, how?
Does reflection across the x-axis change the y-coordinates? If yes, how?
What are the coordinates of point Q?
What are the coordinates for the other vertices of Q'R'ST?
R’
S’
T’
Draw figure Q’R’S’T’ on the coordinate plane and label the pints at the vertices
Answers
Answer:
Q (-4, -2); 2 units; Q' will be above the x-axis; 2 unites; no; yes, the y coordinates are multiplied by -1; Q' (-4, 2); R' (-2, 2), S' (1, 5), T' (-2, 5);
Step-by-step explanation:
even after a reflection over the x-axis, each points distance from the x-axis will stay the same
the x-coordinates don't change because the distance from the y-axis stays the same
the picture below shows points of Q'R'S'T', just connect the vertices
Mrs. Smith is shopping for a toy chest to go in her kids' playroom. She looks at the options shown.
Image_7181
If Mrs. Smith needs a toy chest that has at least 35 ft3 of storage space, which chest should she purchase
Answers
The volume of a cuboid toy chest is equal to their product of the length,
width, and height.
The correct option for the toy chest she should purchase is; Only toy chest A will provide the necessary storage space.Reasons:
The dimensions of the toy chest are;
Toy chest A;
Length = 5 feet
Width = 4 feet
Height = 2 feet
Toy chest B;
Length = 4 feet
Width = 2 feet
Height = 4 feet
Volume of Toy chest A = 5 ft. × 4 ft. × 2 ft. = 40 ft.³
Volume of Toy chest B = 4 ft. × 2 ft. × 4 ft. = 32 ft.³
The volume of the toy chest Mrs. Smith needs = 35 ft.³
The toy chest Mrs. Smith should purchase is Toy chest A, that has a volume of 40 ft.³, which can store items that with a volume of 35 ft.³
The correct option is; Only toy chest A will provide the necessary storage space
Possible question options obtained from a similar question found online are;
Either toy chest have the storage space needed
Neither has the storage space needed
Only toy chest A
Only toy chest B
Learn more about calculating volumes of various shapes here:
https://brainly.com/question/3789826
If Toye, whose speed is in ratio 5:6 to Koye uses 72min to finish a race. How long will the same race take Koye?
Answers
Answer:
86.4
Step-by-step explanation:
Toye:Koye
5:6
5 - 72
6
(6*72) ÷ 5
=86.4 min
F(x)=x^2. What is g(x)?
A. G(x)=-x^2
B. G(x)=-2x^2
C. G(x)=-x^2-2
D. G(x)=x^2-2
Answers
[tex] - x ^{2} - 2 = gx[/tex]
Plot the point (6, 0) on the coordinate plane.
Answers
Answer:
Just go to the 6 on the bottom line, and add a point
Answer:
see below
Step-by-step explanation:
(6,0)
The first coordinate is the x coordinate. Since it is positive we go to the right 6 units. The second coordinate is the y coordinate. We go up zero units
solve pls brainliest
Answers
Answer:
The answer is 57.6
Step-by-step explanation:
6 x 9.6 = 57.6
Simplify.
1/cosθ + tan^2θ/cosθ
• 1 + sinθ
• sec^3θ
• 1
• cos^3θ
Answers
Answer:
I'm guessing the answer is sec³θ
Step-by-step explanation:
I tried this problem and I got 1/cos³θ and clicked cos³θ, but that answer was incorrect. In my lesson, there were the options:
1. sec³θ
2. cos³θ
3. secθ
I didn't have options 1 + sinθ or 1 as answers. If sec³θ is not the correct answer, please correct me.
Calculate the volume of the pyramid. Round your answer to the nearest hundredth 10in 7in
Answers
Answer:
Place the numbers in their places. b=base h=height.
Step-by-step explanation:
Definition of living being
Answers
(Biology) the state or quality that distinguishes living beings or organisms from dead ones and from inorganic matter, characterized chiefly by metabolism, growth, and the ability to reproduce and respond to stimuli.
f(x)= -2x^3 +14x -8
g(x)= 2x+6
Answers
Answer:
F(2x+6)=-16x^3-144x^3-404x-356
Step-by-step explanation:
Help help help help help help help help help help help
Answers
Answer:
A' 2,2
B' 3, -1
C' -1,0
Step-by-step explanation:
Because you're translating it by -2, 3, you're basically subtracting 2 from the x value and adding 3 to the y value.
A = 4, -1
A' = 2, 2
B = 5, -4
B' = 3, -1
C = 1, -3
C' = -1, 0
What percent of 75 is 15? What percent of 15 is 75? What percent of 48 is 20? What percent of 88 is 88?
Answers
2. 15 is what percent of 70? =20
3. 48 is what percent of 20? = 41.67
4. 88 is what percent of 88? =100
How many solutions are there to the equation shown below?
4(2x−3)−2x=6x+8
pls answer ASAP I will give brainliest to the first
Answers
Answer:
0 = 20
Step-by-step explanation:
4(2x−3)−2x=6x+8
8−12−2=6+8
combine like terms.
8x−12−2x=6x+8
6−12=6+8
Add 12 to both sides of the equation
6x−12=6x+8
6−12+12=6+8+12.
you select a card at random from a standard deck of 52 cards. In how many ways can you select a black card
Answers
Answer:
26
Step-by-step explanation:
in a deck of 52 cards there are 52/2 = 26 black cards
so there are 26 ways you can select a black card
Hemp help help help help help math math math
Answers
Answer:
x=25
Step-by-step explanation:
5x-5+ 2x+10 =180
2x-5x = 10+5
3x= 15
x=5
5(5)-5+ 2(5) +10 =180
A bag of marbles consists of 14 blue marbles and 7 red marbles. If you reach into the bag and choose 2 marbles,
what is the probability that they are both blue? Assume the first marble is not replaced.
Answers
Answer:
chances are 10.5
Step-by-step explanation:
For every 3 minutes that Ginny plays on the computer, she plays outside for 10 minutes. What is the ratio of minutes Ginny plays on the computer to minutes she plays outside?
Answers
Three to Ten 3:10
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