pls help will give BRAINLIEST BRAINLIEST to correct answer
Step-by-step explanation:
This is a guess but wouldn't you multiply each side by (0.8)
12(0.8)= 9.6
10(0.8) =8
10(0.8)=8
16(0.8)= 12.8
perimeter= all sides added together
9.6+8+8+12.8= P
P=38.4?
Answer:
This is a guess but wouldn't you multiply each side by (0.8)
12(0.8)= 9.6
10(0.8) =8
10(0.8)=8
16(0.8)= 12.8
perimeter= all sides added together
9.6+8+8+12.8= P
P=38.4?
Step-by-step explanation:
I did this so you can mark the other guy brainliest, its their answer and they deserve all the credit. Make sure to thank them!
Please answer correctly !!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!!!
Answer:
y = 4
General Formulas and Concepts:
Order of Operations: BPEMDASComplementary Angles: Angles that add up to 90°Step-by-step explanation:
Step 1: Set up equation
(8y - 2)° + 60° = 90°
Step 2: Solve for y
Combine like terms: 8y + 58 = 90Subtract 58 on both sides: 8y = 32Divide both sides by 8: y = 4What is the value of cos(x/2) if tan x=1/2 and x is in quadrant III
Answer:
Step-by-step explanation:
The value of cos(x/2) is required.
The required value is [tex]\cos(x/2)=-\sqrt{\dfrac{5-2\sqrt{5}}{10}}[/tex]
TrigonometryThe given value is
[tex]\tan x=\dfrac{1}{2}[/tex] where x is in quadrant III.
From trigonometric identities we have
[tex]\sec^2x=1+\tan^2x\\\Rightarrow \sec^2x=1+(\dfrac{1}{2})^2\\\Rightarrow \sec^2x=\dfrac{5}{4}\\\Rightarrow \cos^{2}x=\dfrac{4}{5}\\\Rightarrow \cos x=\dfrac{2}{\sqrt{5}}[/tex]
If x lies in quadrant III then x/2 lies in quadrant II.
Cos is negative in quadrant III so,
[tex]\cos x=-\dfrac{2}{\sqrt{5}}=-\dfrac{2\sqrt{5}}{5}[/tex]
[tex]\cos \dfrac{x}{2}=\pm \sqrt{\dfrac{1+\cos x}{2}}\\ =\pm\sqrt{\dfrac{1-\dfrac{2\sqrt{5}}{5}}{2}}\\ =\pm\sqrt{\dfrac{5-2\sqrt{5}}{10}}[/tex]
Since, x/2 lies in the second quadrant and cos (x/2) is negative.
The required value is [tex]-\sqrt{\dfrac{5-2\sqrt{5}}{10}}[/tex]
Learn more about trigonometry:
https://brainly.com/question/24349828
If A and (2A – 45°) are acute angles such that sin A = cos (2A – 45°), then tan A is equal to
(a) 0
(b) 13√
(c) 1
(d) √3
please answer it fastt
Answer:
(c) 1
Step-by-step explanation:
[tex] \sin \: A = \cos(2A - 45 \degree) \\ \\ \cos(90 \degree - A )= \cos(2A - 45 \degree) \\ \\ 90 \degree - A = 2A - 45 \degree \\ \\ 90 \degree - 45 \degree = 2A -A \\ \\ 45 \degree = A \\ \\ A = 45 \degree \\ \\ \tan \: A = \tan \: 45 \degree \\ \\ \huge \red{ \boxed{\tan \: A =1}}[/tex]
Nathan took his car in for service and repairs. He had a coupon for 10% off.
Original Prices
• Labor $254.58
• Parts $333.90
• Other $64.42
Which amount is closest to Nathan's total costs after the 10% discount and including 6% sales tax? [Assume tax is applied after the discount is applied.]
Answer:
$594.21
Step-by-step explanation:
Because 254.58 + 333.90+ 64.42= $622.87
and 10 off of $622.87 = $560.58
and 6% sales tax to $560.58 = $594.21
Model 3+ (-4) on the number line
Answer:
-1
Step-by-step explanation:
If u add 3 whole numbers to a negative number 4 then it'll equal -1. Think of it like 4-3 but add the negative sign at the begining
Answer:
-1
Step-by-step explanation:
Simplify: 3 - 43 - 4 = -1Mark -1 on the number lineI hope this helps!
What is the answer to: three times a number K is more than 14
Answer:
k > 14/3
General Formulas and Concepts:
Order of Operations: BPEMDASStep-by-step explanation:
Step 1: Translate
"Three" = 3
"times" = multiplication
"a number k" = k
"is more than" = >
"14" = 14
Step 2: Set up inequality
3k > 14
Step 3: Solve for k
Divide both sides by 3: k > 14/3Here we see that any number k greater than 14/3, or 4.666..., will work as a solution.
5. The sum of three consecutive integers is
147. Which equation represents how to
find the least integer?
A. n+ (m + 1) + (n+ 2) = 147
B. 3n = 147
C. n + 2n + 3n = 147
D. 3n - 3 = 147
The solution is Option A.
The sum of the three consecutive numbers is given by the equation
A = n + ( n + 1 ) + ( n + 2 ) = 147°
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Let the first number be n
The value of the second number = n + 1
The value of the third number = ( n + 1 ) + 1
The value of the third number = n + 2
Substituting the values in the equation , we get
Now , the total sum of all the values is A = 147
Hence , the equation is A = n + ( n + 1 )° + ( n + 2 ) = 147
To learn more about equations click :
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GUYS MORE HELP LIKE FAST
Step-by-step explanation:
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7/2x+1/2x=6+5/2x pls help
Answer:
4
Step-by-step explanation:
7/2+1/2=8/2
8/2=6=5/2
8/2-5/2=3/2
3/2=6
3/2=1.5
6/1.5=4
The diagram shows a cuboid.
8 cm
durinn
15 cm
20 cm
What is the surface area of the cuboid?
Answer:
6436
Step-by-step explanation:
because yes
If using the method of completing the square to solve the quadratic equation
x2 - 6x + 6 = 0, which number would have to be added to "complete the square"?
This is what the steps look like when we complete the square
x^2 - 6x + 6 = 0
x^2 - 6x = -6
x^2 - 6x + 9 = -6+9
(x-3)^2 = 3
We add 9 to both sides so that we can factor x^2-6x+9 into (x-3)(x-3) = (x-3)^2
To get the 9, we cut the -6 (from -6x) in half to get -6/2 = -3. Then we square that to get (-3)^2 = 9
It might help to look at (a+b)^2 = a^2+2ab+b^2 and note the relationship between 2ab and b^2.
Helpppppppppppppppppppppppppp
5 and 8
Answer:
5. -3, -2/3
Step-by-step explanation:
5.
6x-4y=18
-x-6y=7 multiply this equation by 6 both sides
6x-4y=18
-6x-36y=42 add both equations
-4y-36y=18+42 combine like terms
-40y=60 so y = -4/6= -2/3
subtitute y=-2/3 in -x-6y=7
-x-6*(-2)/3=7 solve
-x+4=7 subtract 4 from both sides
-x=7-4
x= -3
8.
substitute y=4x+5 in to the second equation
12x-3(4x+5)=9
12x-12x-15=9
-15=9 is never true so the equation has no solutions
What is the y-intercept of the graph of the linear function?
5p - 13 < 32
Please and thank you
Answer:
p < 9
Step-by-step explanation:
5p-13<32
Subtract 13 from both sides.
5p<45
divide 5 from both sides
p < 9
Yvette uses 6grams of tea leaves to make 24 fluid ounces of tea last week she made 288. Fluid ounces of tea how many grams of tea leaves did Yvette use to make tea last week
Answer: 72 grams of tea
Step-by-step explanation:
From the question, we are informed that Yvette uses 6grams of tea leaves to make 24 fluid ounces of tea. This means that for 1 gram of tea leaves, she'll use:
= 24/6
= 4 fluid ounces of tea
Since, 1 gram of tea leaves will be used to make 4 fluid ounces of tea, therefore, the number of grams of tea leaves that will be used to make 288 fluid ounces of tea will be:
= 288/4
= 72 grams of tea
who can help me and answer the 2 questions for me :(
I NEED HELP !!! 30 points!!!! and brainliest :)
please give sensible answer :(
Answer:
Step-by-step explanation:
9) PQR Is an isosceles triangle
=> ∠PRQ = (180° - x)/2
PRS is an isosceles right triangle
=> ∠PRS = 45°
Have: ∠PRS + ∠PRQ = 115°
=> [tex]\frac{180-x}{2}+45=115 \\[/tex]
=> 180 - x = (115 - 45).2 = 140
<=> x = 180 - 140 = 40
10) ABD is an isosceles right triangle => ∠ABD = 45°
BCD is an equilateral triangle => ∠CBD = 60°
have: x = ∠ABD + ∠CBD = 45° + 60° = 105°
11) have: x = y (2)
PQT is an isosceles triangle => ∠PQT = 180 - 70.2 = 40
QTS is an isosceles triangle => ∠TQS = 180 -2x
QRS is an isosceles triangle => ∠RSQ = y
have: 40 + 180 - 2x + y = 180 => 2x - y = 40 (1)
(1)(2) => [tex]\left \{ {{y=x} \atop {2x-y=40}} \right.\\\\=> \left \{ {{x=40} \atop {y=40}} \right.[/tex]
=> x + y = 80
12) EFJ Is an equilateral triangle => ∠FJE = 60
∠FJE is the outer angle of the triangle FHJ but FHJ is an isosceles triangle
=> 60 = 2.∠JHF => ∠JHF = 30°
∠JHF is the outer angle of the triangle FHG
=> 30° = 2x
<=> x = 15°
Does Anybody Know Anything About Angle Bisectors?
Answer:
I know a bit about Angle Bisectors. (the line that splits an angle into 2 equal angles)
Answer:
In geometry, the angle bisector theorem is concerned with the relative lengths of the two segments that a triangle's side is divided into by a line that bisects the opposite angle. It equates their relative lengths to the relative lengths of the other two sides of the triangle.
Hope this helps :)
f(x)=x+2 g(x)=3x^2-5 find (f x g)(x)
Answer:
(f · g)(x) = 3x³ + 6x² - 5x - 10
General Formulas and Concepts:
Distributive PropertyFOIL (First, Outside, Inside, Last)Step-by-step explanation:
Step 1: Define
f(x) = x + 2
g(x) = 3x² - 5
Step 2: Find (f · g)(x)
Set up: (x + 2)(3x² - 5)FOIL: 3x³ - 5x + 6x² - 10Combine like terms: 3x³ + 6x² - 5x - 10shenika is inviting 7 friends to a party. if each friend will get 5 cookies and each box has 12 cookies. how many boxes does shenika need to get
Answer:
Shenika invites 7 friends and each one gets 5 cookies.
= 7*5
= 35
Based on above answer, Shenika will need a total of 35 cookies for all.
-----------------------------------------------------------------------------------------------------------
Each box has 12 cookies.
Total cookies = 35
Let the number of boxes be x.
12*x = 35
x = 35/12
x = 2.9
This means she would need 3 boxes.
Will give brainliest
Answer:
idk
Step-by-step explanation:
Find three consecutive integers where the sum of the first and the twice second is 5.
Answer:
1,2, and 3
Step-by-step explanation:
1+ (2*2) is equal to 5, so it has to be 1 and 2, and you can figure out that 3 goes after that.
What is the value of y?
Answer:
y = 29 degrees
Step-by-step explanation:
5y + 35 = 180
5y = 145
y = 29
What is the slope and y intercept
Y=-1/5x+6
Answer:
slope: -1/5×
y-int. : 6
Answer:
slope is -2/5x and the y intercept is 6
Solve w(raised to the 2nd power)=81, where w is a real number. Simplify your answer as much as possible.
w=?
Answer:
9
Step-by-step explanation:
9 to the second power would be 9 times 9, which equals 81
Which polynomial is in standard form?
A) 2x + 3x3 + 5x5 + 9x4 + 2x
B) 5 + 3x + x2 + 2x4 + 2x5
C) 8x7 + 3x6 + x5 + 5x4 − 2x3
D) 8x2 + 3x5 + x6 + 5x7 − 2
Emma was told to graph
the equation y = 2x - 1.
Her graph is shown here.
What was Emma's
mistake?
Answer: Emma didnt do rise over run
Step-by-step explanation:
Emma started on the right y-intercept which was -1, but she needed to do rise over run which means she would need to go up 2 and over 1. Instead, Emma went over 2 and up 1.
Do u think I should get a belly button piercing? I’m going to be 16 soon.. I already have a nose piercing tho so idk if that would be to much?
Answer:
no. i think that is weird-ish.
Step-by-step explanation:
PLZZZ HELLPPPP THIS IS A TIMED TESTT *LOOK AT PICTURE*
The two triangles are similar. Find the values of the unknown variables.
Answer:
Step-by-step explanation:
40 : 30 = x : 63 ⇒ x = (40*63)/30 = 84
y = 59°
