Answer:
are you sure this is a middle school question
Step-by-step explanation:
The measure of two exterior angles from the given figure are 60° and 90°.
What is sum of exterior angles of polygon?An exterior angle is an angle which is formed by one of the sides of any closed shape structure such as polygon and the extension of its adjacent side. The sum of the measures of the exterior angles of a polygon is equal to 360 degrees, irrespective of the number of sides in the polygons.
From the given figure, the exterior angles are 70°, 2x°, 65°, 75° and 3x°.
Here, 70°+2x°+65°+75°+3x°=360°
210°+5x°=360°
5x°=150°
x=30°
So, 2x=60° and 3x=90°
Therefore, the measure of two exterior angles are 60° and 90°.
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Find each missing measure for 1, 2, 3, and 4. Giving brainliest!
Answer:
a quadrilateral adds up to 360 degrees so each 4 siede figure is 360 degress
Step-by-step explanation:
1. add 108 + 59 + 119= 286 now do 360 - 286 = and you get 74
so that is how you get the answeres for the question , add the degrees then minus it by 360
Please mark brainliest :)
2. x = 234
3. x = 37
4. x = 83
Data management probability
Answer: Probability theory is a branch of mathematics focusing on the analysis of random phenomena. It is an important skill for data scientists using data affected by chance. With randomness existing everywhere, the use of probability theory allows for the analysis of chance events.
Step-by-step explanation:
Find the value of x. please explain and show your work.
top(50) left side(24) bottom(32) right side (x)
Answer:
30
Step-by-step explanation:
use Pythagoras theorem
hypothenuse of bottom triangle =√24^2+32^2 = 40
x =√50^2-40^2 = 30
get more math help pls
Answer: See below
Step-by-step explanation:
If the tempature is dropping 3 degrees every hour mulitply 3x5 and you will get 15. Therefore the answer is -15 degrees
Rule 1: Add 2 starting from 9. Rule 2: Add 3 starting from 5.
What would the coordinate pair be?
Answer:
(11,8)
Step-by-step explanation:
9+2=11
5+3=8
Answer:
(11,8)
9+2=11
5+3=8
brainliest if it shows how to do all 4
formula: pi×2×r or pi×d
1. 9m×2×pi= 56.55m
2. 17ft× pi= 53.41 ft
3. 3yd×pi= 9.42 yd
4. 5cm× pi= 15.71cm
Whoever answers correctly can have brainliest
but answer asap
Answer:
8 4/25
Step-by-step explanation:
2 2/5 = 12/5
3 2/5 = 17/5
12×17/5×5
204/25 = 8 4/25
Answer:
[tex] 8 \dfrac{4}{25} [/tex]
Step-by-step explanation:
[tex] 2 \dfrac{2}{5} \times 3 \dfrac{2}{5} = [/tex]
[tex] = \dfrac{12}{5} \times \dfrac{17}{5} [/tex]
[tex] = \dfrac{204}{25} [/tex]
[tex] = 8 \dfrac{4}{25} [/tex]
__,__,80,64,51.2,40,96,...
Find the first two terms of the geometric sequence.
Answer:
125, 100, 80,64,51.2,40.96...
Step-by-step explanation:
y=[tex]\frac{4}{5}[/tex]x
So let's work backwards!
[tex]\frac{5}{4}[/tex](80)
=100
Then...
[tex]\frac{5}{4}[/tex](100)
=125
Hope this helps! :D
Answer:
125, 100
Step-by-step explanation:
Perhaps the terms of your series are supposed to be ...
__, __, 80, 64, 51.2, 40.96, ...
The common ratio is 64/80 = 0.8, so the recursive relation is ...
t[n] = 0.8×t[n-1]
__
Solving for the previous term, we find ...
t[n]/0.8 = t[n-1] . . . . . . divide by 0.8
or ...
t[n-1] = 1.25×t[n] . . . . . rearrange
Then the term previous to 80 is 1.25×80 = 100.
And the term previous to 100 is 1.25×100 = 125.
The first two terms of the geometric sequence are 125 and 100.
IM STUck HELP ME PLEASE
Answer:
A and B are the correct answers
Step-by-step explanation:
Answer: A because im just guessing
You are going to draw 4 cards from a standard deck of 52 cards. How many different combinations of cards could you draw?
Answer:
Step-by-step explanation:
To start with we can consider how many possibilities there are for the first card which is obviously 52, as any one of the cards in the deck can be found on the top of the pile. The next card is a bit trickier as there are only 51 possible cards that it could be as the first card takes up a spot. The third card now only has 50 possible cards it could and this continues all the way down to the last card.
is that good
Q4H: The question is in the picture below (please show work) :
Sondie sold $6,300 worth of jewelry for her company. She earns $573.25 for
income each week. She is given a 20% commission on her total sales. What was
Sondie’s total income?
Answer:
i think maybe $1833.25
Step-by-step explanation:
[tex] \frac{20}{100} \times 6300[/tex]
= $1260 + $573.25
= $1833.25
Bijou says the following steps can be used to find 0.62 of 7:
Step 1
Step 2
Step 3
Step 4
Change "of” to the multiplication symbol.
62 × 7 = 434
There are 0 decimal places in 7 and 2 decimal places in 0.62 for a total of 2 decimal places in the factors.
Move the decimal place in the product 2 places to the right to find the solution: 0.62 of 7 is 43,400.
In which step did she make her first error?
Step 1
Step 2
Step 3
Step 4
answer is step 1
Step-by-step explanation:
Answer:
I believe it's a, step one
Step-by-step explanation:
the term "of" in mathematics usually means division
PLEASE HELP, the picture below are the details (giving brainliest)
Answer:
A or C but i believe it is A
She can choose from 7 pairs of pants, 6 t-shirts, 7 sweaters or hoodies, and 2 pairs of shoes. How many different outfits does Kaylee have to choose from?
Answer:
she has 7 outfits
Step-by-step explanation:
cause if you have 7 pairs of pants and 6 shirts and 7 hoodies you can make 7 outfits
The vertices of triangle DEF are D(12, -8), E(-4, -8), and F(-4, 16). The triangle is dilated with a scale factor of 1/4. Estimate the perimeter of the dilated figure to the nearest whole number.
Answer:
6
Step-by-step explanation:
2
Which is a solution to the linear inequality 2x-3y>6
A. (3,0)
B. (-3,1)
C. (3,-1)
Answer:
C ( 3,-1) is a solution
Step-by-step explanation:
2x-3y>6
Let x = 3
2(3) -3y >6
6 - 3y>6
Subtract 6
-3y >0
Divide by -3
-3y/-3 < 0/-3
y < 0
If x = 3 y must be less than 0
C ( 3,-1) is a solution
Lisa is working on plans for a 12-acre housing development. A park will [tex]2\frac{1}{2}[/tex] cover acres, and paved areas will take [tex]1\frac{3}{4}[/tex] acres. How many acres are left for home sites.
Answer:
Step-by-step explanation:
Here is the equation for this problem:
2 1/2 + 1 3/4 + x = 12
To add 2 1/2 and 1 3/4, revert the fractions into mixed numbers, and then change the denominator to the LCM (Lowest Common Denominator)
3/2 + 7/4 + x = 12
The lowest common denominator, in this case, is 4. 7/4 stays the same because the denominator is already 4, but we need to multiply the numerator and denominator of 3/2 by two to get the denominator to 4. (Whatever you do to the numerator, you have to do to the denominator, and vice versa)
3 x 2 = 6
2 x 2 = 4
Now, the equation looks like this:
6/4 + 7/4 + x = 12
Now add the fractions. The denominator stays the same, but the numerators are added together.
6/4 + 7/4 = 13/4
Now, you can revert 13/4 back to a mixed number
13/4 = 3 1/4
The equation should look like this now:
3 1/4 + x = 12
Now subtract 3 1/4 from both sides (Meaning subtract 3 1/4 from 3 1/4 to cancel it out and also subtract 3 1/4 from 12 as well)
12 - 3 1/4 = 8 3/4
Now, it should look like this:
x = 8 3/4
You could change the 8 3/4 into a decimal as well, which would look like this:
x = 8.75
Here is a summary of the whole equation:
2 1/2 + 1 3/4 + x = 12
3/2 + 7/4 + x = 12
6/4 + 7/4 + x = 12
13/4 + x = 12
3 1/4 (-3 1/4) + x = 12 (-3 1/4)
x = 8 3/4 or 8.75 acres
Answer:
Lisa has 8 3/4 acres left for home sites
There will be 7.75 acres of land left for home sites.
What is Mixed Fraction?Mixed fractions are type of fractions which includes both a whole part and a fractional part.
It is of the form a [tex]\frac{b}{c}[/tex], where a is the whole part and b/c is the fractional part. This actually implies that a + [tex]\frac{b}{c}[/tex]. So we can do the cross multiplication to change the mixed fraction into improper fraction.
Total land for housing development = 12 acres
Land covered by park = 2 [tex]\frac{1}{2}[/tex]
= (2 × 2 + 1) / 2
= 5/2 acres
Land covered by paved areas = 1 [tex]\frac{3}{4}[/tex]
= (1 × 4 + 3) / 4
= 7/4 acres
Total land covered by park and paved areas = [tex]\frac{5}{2}[/tex] + [tex]\frac{7}{4}[/tex]
= [tex]\frac{10}{4}[/tex] + [tex]\frac{7}{4}[/tex]
= [tex]\frac{17}{4}[/tex]
= 4.25 acres
So the remaining land = 12 - ([tex]\frac{5}{2}[/tex] + [tex]\frac{7}{4}[/tex])
= 12 - 4.25
= 7.75 acres
Hence Lisa can build the home sites in the remaining 7.75 acres of land.
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The first three terms of a geometric sequence are as follows.
HELP I ONLY HAVE ONE MINUTE LEFT!!!
Which statements about this system of equations are true? Check all that apply.
A: The x-variable will be eliminated when adding the system of equations.
B: The y-variable will be eliminated when adding the system of equations.
C: The sum of the system of equations is Negative 8 x = 14.
D: x = 2
E: y = 3
F: There is only one solution to the system of equations.
Answer:
Step-by-step explanation:
b,d,e,f :)
brainlest if it’s right
brainliest if it is right
Answer:
Area=7.071428571
Step-by-step explanation:
Before finding its area lets find its radius.
Given,
Diameter=3
Now,
Radius,r=D/2
r =3/2
r=1.5
Again,
Area of circle,A= pi*r*r
A =22/7*1.5*1.5
A=22/7*2.25
A=49.5/7
A=7.071428571 ans.
I get confused when there are boxes—
i also get stuck on fractions.. help
2.4x+2.8=10
Use inverse operations to find for x!
x= 3
what is the peremeter and area of the photo below, also please show work .
Answer:
102.849
Step-by-step explanation:
the perimeter of the square is just 4 × 18.
for the semi-circle the perimeter should be R(pi + 2)
so the perimeter of a semi circle is 30.849
add both values for the final answer which is 102.849
Is anyone able to figure this out, I can't do this
Answer:
C. √2 - 1
Step-by-step explanation:
If we draw a square from the center of the large circle to the center of one of the small circles, we can see that the sides of the square are equal to the radius of the small circle (see attached diagram)
Let r = the radius of the small circle
Using Pythagoras' Theorem [tex]a^2+b^2=c^2[/tex]
(where a and b are the legs, and c is the hypotenuse, of a right triangle)
to find the diagonal of the square:
[tex]\implies r^2 + r^2 = c^2[/tex]
[tex]\implies 2r^2 = c^2[/tex]
[tex]\implies c=\sqrt{2r^2}[/tex]
So the diagonal of the square = [tex]\sqrt{2r^2}[/tex]
We are told that the radius of the large circle is 1:
⇒ Diagonal of square + r = 1
[tex]\implies \sqrt{2r^2}+r=1[/tex]
[tex]\implies \sqrt{2r^2}=1-r[/tex]
[tex]\implies 2r^2=(1-r)^2[/tex]
[tex]\implies 2r^2=1-2r+r^2[/tex]
[tex]\implies r^2+2r-1=0[/tex]
Using the quadratic formula to calculate r:
[tex]\implies r=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]
[tex]\implies r=\dfrac{-2\pm\sqrt{2^2-4(1)(-1)}}{2(1)}[/tex]
[tex]\implies r=\dfrac{-2\pm\sqrt{8}}{2}[/tex]
[tex]\implies r=-1\pm\sqrt{2}[/tex]
As distance is positive, [tex]r=-1+\sqrt{2}=\sqrt{2}-1[/tex] only
Answer if u know please ASAP if correct and speedy I’ll give brainliest
Answer: tbh its not a
Step-by-step explanation: i just know
Answer:
Answer is C. 2, -4,
Step-by-step explanation:
brainliest if it is right
Answer:
Step-by-step explanation:the answer is 5
Answer:
the answer i got was 5
Step-by-step explanation:
PLEASE ANSWER FAST: What factor is represented by the yellow shading in the model? [Hint: Crossing the bold line means the whole number 1 and shading equals numerator]
(I will give brainliest to the correct question)
PLease help me! Due tonight thank you!
Answer:
1432.08 centimeters^2 I think
Step-by-step explanation:
Surface Area = 2×(3.4×18 + 3.4×30.6 + 18×30.6) = 1432.08 centimeters2
Which numbers are Rational Numbers?
Answer:
[tex]A.) -67,~ \sqrt{81},~ \dfrac 75[/tex]
Step-by-step explanation:
[tex]\text{A rational number is a number that is expressed as the ratio of two integers.}[/tex]