Step-by-step explanation:
x + 15 +2x + 66 = 180
3x + 81 = 180
3x = 99
x = 99/3 = 33
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Answer:
The angles are 66, 66, and 48 degrees
The triangle is isosceles because 2 angles are equal, thus two leg lengths are equal
Step-by-step explanation:
the sum of all three angles in a triangle = 180 degrees
66 + 2x + (x+15) = 180
simplify
66 +3x + 15 = 180
reduce
81 + 3x = 180
subtract 81 from each side
81 - 81 + 3x = 180 - 81
3x = 99
divide both sides by 3
3x/3 = 99/3
x = 33
Scientists have found fewer fossils of plants than of animal bones. Why do you think this is?(You may state your opinion!)
-8a^2+40a=
this is a factoring question
Answer:
-8a(a-5)
Step-by-step explanation:
-8a^2+40a
-8a(a-5)
Test Scores. You are taking a math test in which items in part A are worth 10 points and items in part B are worth 15 points. It takes 3 min. to complete each item of part A and 6 min. to complete each item in part B. The total time allowed is 60 min. and you do exactly 16 questions. How many questions of each part did you complete? Assuming that all your answers were correct, after all you had a GREAT Math Teacher, what was your score?
Answer:
465 is the total points he got and he solved 14 in part A and 2 in part B
hope it helps you
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Can you please help because I’m stuck
Answer:
2x+7= 3x-10
17=x
Step-by-step explanation:
please help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!will give brainliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
vertical angles
Step-by-step explanation:
They don't share a common side, so they are not adjacent!
Hope that helps!
3. Plot the points and then answer the questions:
(1, -3) (-3, 9) (2,-6)
a. Is this a proportional relationship?
b. What is the constant of proportionality?
Please help !!
Answer:
a. yes there is a proportional relationship
b. I believe the constant is -3
Evaluate the expression when a=−15 and b=−5.
hat would -
A divided by b = ?
be?
Answer:
3Step-by-step explanation:
Given the following values a=−15 and b=−5.
We are to find a/b
a/b = -15/-5
a/b = 15/3
a/b = 5*3/5*1
a/b = 5/5 * 3
a/b = 1*3
a/b = 3
Hence a divided b will be 3
Claire borrows money from a bank. She has to pay a $50 fee for borrowing money and $0.55 every day until the money is paid back. Which function below represents this situation?
A f(x) = 50 +0.55x
B f(x) = 50x +0.55
C f(x) = 55 +0.50x
D f(x) = 55x +0.50
Answer:
The correct answer is A)
Step-by-step explanation:
3) If the slope of PQ is 4 and the slope of OR is – 1/2 , find the slope of SR so that PQRS is a parallelogram.
Answer:
Step-by-step explanation:
the anwser is 1/3
olve for x: 3(x + 1) = −2(x − 1) + 6.
A cylinder has radius 3.8 meters. Its volume is 159 cubic meters. Find its
height to the nearest tenth of a meter.
Answer:
Step-by-step explanation:
how do you work out this problem?
Answer:
7 meters long
Step-by-step explanation:
How do I know if it is sss, sad, asa, or aas?
i have attached a image which may help u <3
Distance=7cm/1yrx1000yr=
9514 1404 393
Answer:
70 m
Step-by-step explanation:
Perhaps you want to evaluate the expression:
[tex]\dfrac{7\text{ cm}}{1\text{ yr}}\cdot 1000\text{ yr}=7000\text{ cm}=70\text{ m}[/tex]
__
There are 100 cm in 1 m. The units of yr cancel.
2.) Find the value of n in the equation 1/2(n+4) = 6 *
Answer:
2
Step-by-step explanation:
Find the area of the circle. Use 3.14 or 22/7 for pi. Round your answer to the nearest hundredth, if necessary.
Step-by-step explanation:
Given
diameter (d) = 9 ft
radius (r) = 9/2 = 4.5 ft
Area of the circle
= πr²
= 3.14 * ( 4.5) ²
= 3.14 * 20.25
= 63.585
= 63.59 ft
Hope it will help :)
If the area of the rectangle to be drawn is 20 square units, where should points B and D be located if they lie to the right of points A and C?
The question is incomplete. Here is the complete question.
If the area of the rectangle to be drawn is 20 square units, where should points B and D be located if they lie to the right of points A and C?
B(1, 3) and D(1, −2)
B(3, 3) and D(3, −2)
B(2, 3) and D(2, −2)
B(1, 2) and D(1, −3)
Answer: B(1, 3) and D(1, -2)
Step-by-step explanation: Area of a rectangle is the multiplication of its width and its length.
The rectangle to be has length, or distance from point A to point C, of 5 units.
For the area to be 20, width has to be 4.
Point B will be 4 units to the right of point A, which means:
[tex]x_{B}=x_{A}+4[/tex]
Point A has coordinates ( -3, 3), then:
[tex]x_{B}=-3+4[/tex]
[tex]x_{B}=1[/tex]
Because the points is "moved" to the right, instead of up or down, y-coordinate stays the same:
[tex]y_{B}=y_{A}[/tex]
[tex]y_{B}=3[/tex]
Point D will be 4 units to the right of point C:
[tex]x_{D}=x_{C}+4[/tex]
Coordinates of point C are ( -3, -2):
[tex]x_{D}=-3+4[/tex]
[tex]x_{D}=1[/tex]
Because a rectangle has a pair of sides parallel to each other, D's y-coordinate will also be the same:
[tex]y_{D}=y_{C}[/tex]
[tex]y_{D}=-2[/tex]
Coordinates of points B and D that makes rectangle ABCD have area of 20 square units are (1, 3) and (1, -2), respectively.
Parallel or perpendicular
40 is 8% of what number?
Answer:
500
Step-by-step explanation:
40×100÷8=500
Number 40 is 8 percent of 500.
What is the percentage?The percentage refers to a number that is out of 100. When describing components of a whole in mathematics, percentages are employed similarly to fractions and decimals. When employing percentages, the idea is that there are 100 equal pieces that make up the whole. In addition to the shorthand "pct," which is used less frequently, the symbol "%" is used to indicate that a number is a percentage.
Let the unknown number be "x" whose 8% is 40.
Hence,
8% of x = 40
1% of x = 40/8 = 5
Thus, the value of x = 500
Therefore, 8 percent of 500 if 40.
Learn more about percentages here:
https://brainly.com/question/29116686
#SPJ2
Please I need this TOMORROW
Answer:
here u go !! <3
Part 1:
1. 18 - [(15 - 9 + 4] - 2 = 6
2. 6² - [3² + (3 + 12)] = 12
3. 21 - [(2 × 4) + 2 + 5] = 6
4. [(17 - 10) + 4] + 5² = 36
5. 36 ÷ 6 + [(5 × 3) + (13 - 6) + 10] = 38
Part 2:
6. 15 ÷ 3 × 5 - 16 = c. 9
7. 2 [5 + (30 ÷ 6)²] = d. 60
8. [3² × 4] - [6 + 4²] = b. 14
9. 8 [6² - 3 × (2 + 5) - 8 + 3] = e. 80
10. 15 - {27 - 2 × [33 - 4 × (5 + 1)]} = a. 6
Answer:
(1 )14
(2) 45
(3) 20
(4) 36
(5)121
(6) 6
(7)9
(8) 14
(9)80
(10)60
Plz help on BOTH of the questions
Answer:
4.30000x(1+3%)x10%=$3090
5. 20x1.5x2.1=63
Step-by-step explanation:
I am in need of help
Answer:
The answer is Step 2: m<w + m<z = 180 degrees (suppplmentary angles).
Step-by-step explanation:
First, Step 2 says m<w - m<z = 90 degrees. That's false because the m<w - m<z would equal an acute angle, not a right angle. Secondly, the m<w + m<z = 180 degrees. Supplementary angles equal 180 degrees.
In an isosceles trapezoid the base angles are?
Answer:
The base angles of an isosceles trapezoid are equal in measure (there are in fact two pairs of equal base angles, where one base angle is the supplementary angle of a base angle at the other base
Step-by-step explanation:
Work out, giving your answer in its simplest form:
3 1/2 divided by 2 3/5
1 9/26
Convert any mixed numbers to fractions.
Then your initial equation becomes:
7/2÷13/5
Applying the fractions formula for division,=7×5
2×13
=35/26
Simplifying 35/26, the answer is...35/26=1 9/26
Answer:
1 [tex]\frac{9}{26}[/tex]
Step-by-step explanation:
Given
3 [tex]\frac{1}{2}[/tex] ÷ 2 [tex]\frac{3}{5}[/tex] ← change mixed numbers to improper fractions
= [tex]\frac{7}{2}[/tex] ÷ [tex]\frac{13}{5}[/tex]
To perform the division
Leave the first fraction, change division to multiplication and turn the second fraction upside down.
= [tex]\frac{7}{2}[/tex] × [tex]\frac{5}{13}[/tex] ← multiply numerators/ denominators together
= [tex]\frac{35}{26}[/tex]
= 1 [tex]\frac{9}{26}[/tex]
Write an equivalent expression by distributing the "
−−" sign outside the parentheses:
−(3h−2.3k)−7
Answer:
= -3h + 2.3k -7
Step-by-step explanation:
you want to distribute your negative to each value in parentheses
remember that negative x negative = positive
remember that negative x positive = negative
Find the value of x in the triangle, pls help I need this so bad, if you want points you can tell me in the COMMENTS and I'll make a thing just for u!! But pls don't answer if u don't know♥️ thanks love u!!
Answer:
67 degrees, the 4th choice.
Step-by-step explanation:
As you may know, sum of angles in a triangle is 180 degrees. The best thing about this question here, is that 2 of the angles are already given. Now, all you need to do is add the two angles and subtract the result from 180.
You can also use the process of elimination to start.
First off, you can eliminate the second answer, sum of angles in triangle is 180, and 293 is way to much.
7 degrees is way too little, and it can be found by common sense, and knowing that 7+60+53 is already gonna be less than 180. (Didnt mean to be rude though. lol)
The only options left are 113 degrees and 67 degrees. now, lets use the actual formula of sum of angles in triangle.
60+53=113
180-113=67.
So, its 67 degrees! Process of elimination can help, but if you need proof for your answer, do not do that work in front of your teachers, only show the actual proof.
Hope you learned and liked my explanation! If so, please leave a rating and thanks (and hopefully brainliest!!) Have a great day!
Which point is the intersection of RS and VT?
Answer:
point U
Step-by-step explanation:
I learned this before
Hope this helps
HELP! WILL GIVE BRAINLY!!! Find the volume of a cylinder with height = 10ft and the diameter of the base circle is 12ft.
Answer:
About 1,130.4 Cubic Feet
(My previous answer was a mistake. It has now been corrected)
Step-by-step explanation:
The Volume of a cylinder = Height * Pi * Radius^2
The radius is half the diameter, so 12 ÷ 2 = 6
Pi rounded to the hundredth place is 3.14.
Volume = 10 * 3.14 * 6^2 = 1,130.4
Therefore the Volume is about 1,130.4 cubic feet.
Answer:
Exact Volume = 360pi cubic feet
Approximate Volume = 1130.4 cubic feet
The approximate volume is found when you use pi = 3.14; use more decimal digits of pi to get a more accurate value.
===========================================================
Explanation:
The volume of a cylinder is found by the formula
V = pi*r^2*h
where,
pi = 3.14 approximatelyr = radius = 6 ft, since the radius is half the diameter.h = height = 10 ftSo,
V = pi*r^2*h
V = pi*6^2*10
V = pi*36*10
V = pi*360
V = 360pi ........... exact volume in terms of pi
V = 360*3.14
V = 1130.4 ......... approximate volume if you use pi = 3.14
The units of the volume are in "cubic feet" which we can abbreviate to "ft^3". Think of a 1 ft by 1 ft by 1 ft cube. The volume would be 1*1*1 = 1 cubic foot. So basically having a volume of roughly 1130 cubic feet means we need this many cubic blocks to form the cylinder (some of the blocks will be cut up to be able to fit).
Select the correct answer,
What is the value of x?
log3 x = 4
A.27
В.7
С.12
D. 81
Answer:
D. 81
Step-by-step explanation:
Raise
3
to the power of
4
.
81
=
x
Rewrite the equation as
x
=
81
.
x
=
81
How do you find the original price from a coupon or discount?
Answer: ,GJHGFHJGJH HJGLHGLKG HKLGKL G LKJKJLGKJGKGKJKKJ K
Step-by-step explanation: