How do I solve for a and b
Please help out it’s math homework thank you for all your help !
Answer:
71°
Step-by-step explanation:
Remember, all the interior angles of a triangle add up to 180 degrees. Therefore, we can find the value of x by subtracting the values of the other angles from 180:
x=180-82-27
x=71
Find the value of z.
Answer:
Use Pythagoras Theorem
If beaver family one can cut down and 20" tree in 15 minutes and family two can cut down a tree 3 times the size in twice as long how long will it take the second beaver family to cut down a 20" tree
Answer:
10 minutes
Step-by-step explanation:
Beaver family 2 can cut down 60'' (20 x 3) tree in 30 (15 x 2) minutes
In one minute, beaver family 2 would cut down 60/30 = 2'' tree
time to cut down 20'' tree = 20/2 = 10 minutes
w h a t, i s, t h i s . . ?
A triangle has sides with lengths of 3 millimeters, 4 millimeters, and 5 millimeters. Is it a right triangle?
Answer:
yes
Step-by-step explanation:
it's a rule that 3,4,5 is a right triangle but use pathagorean to prove
3x3 + 4x4 = 5x5
9+16 = 25
can anyone help me and place them in their correct spot?
Answer:
(9^2) --- Because 9*9 = 81
(9)
you got this one right (2x-8)
X= -8
Three friends compare the balances in their checking accounts.
The balance in Al's account is $32.60.The balance in Dee's account is 34
the balance in Al's account.
The balance in Zac's account is $49.08 less than the balance in Dee's account.
What is the balance in Zac's account?
Find the equation of the straight line having a slope root 3 and passing through the point(-1,5)
Given:
Slope of a straight line is [tex]\sqrt{3}[/tex].
The line passing through the point (-1,5).
To find:
The equation of the straight line.
Solution:
The point slope form of a line is:
[tex]y-y_1=m(x-x_1)[/tex]
Where, m is the slope and [tex](x_1,y_1)[/tex] is the point.
The line passing through the point (-1,5) with slope [tex]\sqrt{3}[/tex]. So, the equation of the line is:
[tex]y-5=\sqrt{3}(x-(-1))[/tex]
[tex]y-5=\sqrt{3}(x+1)[/tex]
[tex]y=\sqrt{3}x+\sqrt{3}+5[/tex]
Therefore, the equation of the straight line is [tex]y=\sqrt{3}x+\sqrt{3}+5[/tex].
There are 58 people in a store. 10 of them are employees. 6 come out, 4 come in. 16 leave, and 7 enter
Answer:
47 people
Explanation:
58 - 6 + 4 -16 + 7 = 47
Which of the following is equivalent to 16 ^3/4
Answer:
83/5
Step-by-step explanation:
83/5 would be equivalent to 16 3/4.
Answer:
8, or B on Edge.
Just took the quiz. Have a great day
Find the center and the radius of the circle with the equation x^2-4x+y^2-12y+31=0
Can Complementary angles be supplementary?
(Give me an explanation plss!!)
Answer:
go to this it should explain to u
Step-by-step explanation:
https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-geometry/cc-7th-angles/v/complementary-and-supplementary-angles
elp pls I need elp pls pls
Answer:
I think the answer is A if its not im sorry
Step-by-step explanation:
Anyone help me pls :(
Answer:
1 - G;
2 - R;
3 - E;
4 - D;
5 - T;
6 - J;
7 - O;
8 - B;
Step-by-step explanation:
The formula for calculating the sum of interior angles is ( n − 2 ) * 180 ∘ where n is the number of sides.
1) (4 - 2) * 180 = 360 therefore X + 100 + 118 + 53 = 360 => X = 360 - 100 - 118 - 53 = 89 => X = 89
2) (5 - 2) * 180 = 540 => 90 + 90 + X + 128 + X = 540 => 2*X = 540 - 90 - 90 - 128 = 232 => X = 116
3) (6 - 2) * 180 = 720 => 101 + 126 + X + 96 + 147 + 135 = 720 => X = 720 - 101 - 126 - 96 - 147 - 135 = 115 => X = 115
4) (9 - 2) * 180 = 7 * 180, since all angles are equal the answer is 7 * 180 / 9 = 7 * 20 = 140 => X = 140
5) (5 - 2) * 180 = 540 => 90 + 131 + 102 + X + 145 = 540 => X = 540 - 90 - 131 - 102 - 145 = 72 => X = 72
6) Since the sum of the linear pair angles equal 180, X = 180 - 70 = 110 => X = 110
7) (4 - 2) * 180 = 360; Linear pair angle for 73 is 180 - 73 = 107, that means X + 102 + 39 + 107 = 360 => X = 360 - 102 - 39 - 107 = 112 => X = 112
8) (5 - 2) * 180 = 540; Linear pair angle for 84 is 180 - 84 = 96; Linear pair angle for 79 is 180 - 79 = 101; Linear pair angle for 34 is 180 - 34 = 146; so X + 90 + 96 + 101 + 146 = 540 => X = 540 - 90 - 96 - 101 - 146 = 107 => X = 107
67x6+(35÷5)Please help this is hard
Answer: 409
Step-by-step explanation:
67x6+(35÷5)
402+7= 409
Answer:
409
Step-by-step explanation:
all u do is do 35 divided by 5 which =7
then you do 67 times 6 which = 402
then you do 402 + 7 which = 409
Can someone really help me!
Answer:
Step-by-step explanation:
3x - (3x) - 2 = 3x + 3x - 2 {Combine like terms}
= 6x - 2
I-100I + 3x - [-4x] = 100 + 3x + 4x
= 100 + 7x
I -100 I means absolute value of 100 = 100
A pizza with a diameter of 13 inches is cu to to 12 equal slices.
Jayden 44.2433333 inches squared
Carson 55.3041665 inches squared
Step-by-step explanation:
3. A circle with center (0,0) has a y-intercept at (3,0).
Find the equation of the circle.
Answer:
x^2 + y^2 = 9
Step-by-step explanation:
The standard equation of a circle with center at (h, k) and radius r is
(x - h)^2 + (y - k)^2 = r^2. Here h = 0, k = 0, x = 3 and y = 0:
(3 - 0)^2 + (0 - 0)^2 = r^2, or
9 = r^2. Thus, the radius is 3.
The equation of this circle is (x - 0)^2 + (y - 0)^2 = 9, or
x^2 + y^2 = 9
please don't give me downloaded answer on WinZip, it doesn't work on my device. need help with area and perimetre
Answer:
Perimeter = 64m
Step-by-step explanation:
I can only help for Perimeter.
12+20+12+8+8+4=64m
find the mode of 2,7,2,1,5,1,2
Answer:
2
Step-by-step explanation:
Mode means the number in an array that is the most common. The most common number (mode) in this array is 2, with 3 entries.
Find the missing side. Round to the nearest tenth.
Answer:
Solution given:
relationship between base and hypotenuse is given by sin angle
sin angle =b/h
cos55=16/x
x=16/cos55°=27.89=28 is your answer .
Simplify the following expression.
4(3x+6)-(5x-9+2k)
Answer:
−2k+7x+33
Step-by-step explanation:
pls pls pls, I beg you to answer this question only if you know the correct answer please please please I beg you please I beg you no n no no no link
Answer:
fist silde =is 15,4,25
second slide is=18
third slide is=15,31,25
Step-by-step explanation:
sorry i cant get the 4th and 5th ones. but i mean you can mark me brainliest.
hope you have a great day and god loves u<3
Answer:
6..... left side: 4, right side: 15 and 25 7.... 18 centimeters 8..... left side: 15 and 25, right side: 28 9..... 8 weeks 10.... left side: 20, right side: 27, 45.
Step-by-step explanation:
I hope this helped you! I would write the explanation for each problem but that would take to long.
please answer!!!! :D
PLEASE HELP ASAP NO LINKS PLEASE!!!!!!!!HELPPPP!!!!!
Write a rule in function notation to describe the transformation that is a reflection across the x-axis.
Answer:
R(x, y) = (x, -y)
Step-by-step explanation:
When we have a reflection across some line, the distance between the original point and the reflected point to the line is invariant.
For a reflection around the x-axis, the x-value is invariant, then the only value that can change is the y-value.
So if we have a point like (4, 7)
Which is at a distance of 7 units to the x-axis, the only other point that is also at a distance of 7 units to the x-axis that has the same x-value is (4, -7)
Here we already can see the rule.
If we have a point (x, y), the reflection across the x-axis gives us the point (x. -y)
Then we can write this reflection as a function in the next way:
R(x, y) = (x, -y)
This means that if the input is the point (x, y), the output is the point (x, -y)
Find the value of x and y that will make each quadrilateral a parallelogram.
Answer:
x=29, y=8
Step-by-step explanation:
3x=87
x=29
alternate angles are always equal
9y=72
y=8
the lengths of both of the lines are equal because they are opposite each other/ symmetrical
Answer:
Step-by-step explanation:
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A box in the shape of a rectangular prism has the dimensions shown. What is the length of the interior diagonal of the box? Round to the nearest tent
Enter your answer in the box.
Answer:
141.4 cm
Step-by-step explanation:
Refer to the notations in the attached photo,
AG = d
Using Pythagoras Theorem:
In triangle ABC,
AC
=[tex] \sqrt{ {60}^{2} + {80}^{2} } [/tex]
=[tex] \sqrt{3600 + 6400} [/tex]
=[tex] \sqrt{10000} [/tex]
= 100 cm
∴ AC is 100 cm.
In triangle ACG,
d
=[tex] \sqrt{ {100}^{2} + {100}^{2} } [/tex]
=[tex] \sqrt{10000 + 10000} [/tex]
=[tex] \sqrt{20000} [/tex]
= 141.4 cm (cor. to the nearest tenth)
Payday loans are typically $15 charge with an interest rate of 10% over a 2 wk period which variables in the interest formula are known
Answer:
Time = period of loan
Interest amount = $15
Interest rate = 10%
Step-by-step explanation:
Given:
Charge on loan = interest = $15
Interest rate on loan = 10%
Loan period = 2 weeks
The interest formula is given by the relation :
Interest = Principal * rate * time
Using the interest equation given :
The known variables Given in the question are :
Time = period of loan
Interest amount = $15
Interest rate = 10%