Answer:
A.
The scale factor of triangle ABC to DEF is 3.
AC= 1/3 of 15, which is 5.
EF = 3x7, which is 21.
Two people are looking up at a skyscraper. The people are 5 miles apart,
and the skyscraper is between them. The angle of elevation to the top of
the skyscraper is 10° for one person and 4° for the other. What is the
approximate height of the skyscraper?
Answer:
http://caronnaclassroom.weebly.com/uploads/1/3/3/8/13388109/ghq3rev2.pdf
https://answers.yahoo.com/question/index?qid=20110706230042AAteeQm&guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZWNvc2lhLm9yZy8&guce_referrer_sig=AQAAAJvbGUt-D5gGUOG6vSm1xUh4u9qQz8Ct-MwUXiripP8WPV-3YTrujFVGDLiQiVfFW0UUL1hBcE-IJ9ssC3Idz2GVPWh09OCjZgs0RHizsOivAh44ecrLsWdIXPIcEVRNqXPiE3q45Es6UqgxFR3IY54UtqpL0RVGV8cF9dDu_2QJ
Step-by-step explanation:
Here! I hope you do well!
HELP ASAP I MARK BRAINLIEST
Factor completely.
81x^2+180x+100=
Answer:
(9x+10)(9x+10)
Step-by-step explanation:
Factor 81x^2+180x+100
81x^2+180x+100
=(9x+10)(9x+10)
2.7-2.5=
What does this equal?
Answer:
0.2
Step-by-step explanation:
Treat it as normal subtraction
2 (/ 1) .7 (/ 17)
- 2 .5
-----
0.2
Answer:
It is 0.2
Step-by-step explanation:
[tex]7 - 5 = 2[/tex]
[tex]2 - 2 = 0[/tex]
[tex]0.2[/tex]
Here is a diagram and its corresponding equation. Find the solution to the equation and explain your reasoning 38 = 4 x (x 7)
Answer:
bc 4x 7 makes 38
Step-by-step explanation:
i dont know what u want me to say
The value of x is 5/2 in the equation 4(x + 7) = 38
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given equation is 4(x + 7) = 38
Four times of x plus seven equal to thirty eight
Apply the distributive property to find the value of x
4x+28=38
Subtract 28 from both sides
4x=10
Divide both sides by 4
x=10/4
The common factor of 10 and 4 is 2
Divide numerator and denominator by 2
x=5/2
Hence, the value of x is 5/2 in the equation 4(x + 7) = 38
To learn more on Equation:
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Here is a diagram and its corresponding equation.
4(x + 7) = 38
If 2x + 8 = 0, what justifies 2(x + 4) = 0?
Answer:
2(x+4)=0
2x+8=0
8-0=2x
8/2=x
4=x
x=4
PLEASE HELP ME WITH THIS
find your answer using the picture provided
Answer:
d yess i think it is if right mark branly pleasee
Step-by-step explanation:
The solution to a system of linear equations is (0, 4). One of the linear equations in the system is y = 8.1 +4.
The solution to a system of linear equations is (0, 4). One of the linear equations in the system is y = 8.1 +4.the answer is 12.1
What is the answer to this??/
Answer:
The median dr smith is 15
Step-by-step explanation:
I need help on this question
Answer:
top 3.8
first minus 54
second to bottom line 144
bottom line 144
Step-by-step explanation:
Una avenida se dibuja en el plano como la recta cuya ecuación es y = x + 1, los siguientes puntos pertenece a la calle, excepto
Opciones:
A) (-8, -7)
B) (0, 1)
C) (0, 2)
D) (3, 4)
Responder:
(0, 2)
Explicación paso a paso:
Dado :
y = (x + 1)
Para probar qué puntos no pertenecen; aplicamos la ecuación a las opciones dadas para ver cuál de las opciones no se ajusta a la ecuación:
(x = -8, y = - 7)
y = (x + 1)
y = - 8 + 1
y = - 7
(x = 0, y = 1)
y = 0 + 1
y = 1
(x = 0, y = 2)
y = 0 + 1
y = 1
El punto (0, 2) no pertenece
(x = 3, y = 4)
y = 3 + 1
y = 4
The points (0,2) do not belong to the given equation y = x + 1.
What is a linear equation?A linear equation is an equation in which the highest power of the variable is always 1. The standard form of a linear equation in one variable is of the form Ax + B = 0.
The given equation is y = x + 1
To prove which points do not satisfy the given equation, we apply the given option to the equation.
1. (x = -8, y = - 7)
y = (x + 1)
y = - 8 + 1
y = - 7
Hence, The given points belong to the equation.
2. (x = 0, y = 1)
y = 0 + 1
y = 1
Hence, The given points belong to the equation.
3. (x = 0, y = 2)
y = 0 + 1
y = 1
Hence, The given points don't belong to the equation.
4. (x = 3, y = 4)
y = 3 + 1
y = 4
Hence, The given points belong to the equation.
Therefore, option 3 is correct in that point(0,2) does not belong to the given equation.
Learn more about linear equations;
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4 glue sticks cost $7.76. Write a proportion
Which expression is equivalent to the given expression?
(3m-4) (375)
9514 1404 393
Answer:
D. 81/m^7
Step-by-step explanation:
The applicable rules of exponents are ...
(ab)^c = (a^c)(b^c)
(a^b)^c = a^(bc)
(a^b)(a^c) = a^(b+c)
a^-b = 1/a^b
__
Using these, your expression simplifies to ...
[tex](3m^{-4})^3(3m^5)=(3^3)(3)(m^{-4\cdot3+5})=81m^{-7}=\boxed{\dfrac{81}{m^7}}[/tex]
please help me figure out the volume, it would be a life saverrrrrr! c;
Step-by-step explanation:
V= L×W×H
V= 8×5×4
V= 160feet cuded
=================================================
Explanation:
This tent is a triangular prism. We have two congruent triangles in front and back. Let's stand the triangular prism up so that the triangle forms the base, or floor, of this figure.
The area of the base triangle is 5*4/2 = 20/2 = 10 square feet. I used the formula base*height/2 to get the area of a triangle.
Once we know the area of the base of the prism, we multiply that by the height of the prism, which is the 8 ft. So we get 10*8 = 80 cubic feet of volume.
Function
Find each key feature of the function shown in the graph:
Find the range
А (-4,4)
B [-4,4)
C (-4,4]
D [-4,4]
The answer is either
A (-4,4)
B [-4,4)
C (-4,4]
D [-4,4]
Step-by-step explanation:
First of all this is a function which means it has a graph and a question with it. Concluding by that there should be a fraction chance for each answer, and seeing that there's 4 answers it is 1/4 chance per each. Concluding by all of this, choose one of them and it should be a 1/4 chance it is correct.
Can someone plz help me with this one problem plzzzzz !!! (I’m marking brainliest)!!!!
1.
For options A-E choose ALL of the expressions that are equivalent to 3(4x + 3).
A.
12x +3
B.
3(3+4x)
C.
43 +3 + 4x + 3 + 4x + 3
D
7.0 +6
E.
12x + 9
Answer:
B and E
Step-by-step explanation:
A. Incorrect; the expanded form of 3(4x + 3) is 12x + 9
B. Correct; the cumulative property of addition was applied here.
C. Incorrect; this adds up to 8x + 52, which is not equivalent to 12x + 9
D. Incorrect; this equals 13
E. Correct; this is the expanded form of 3(4x + 3)
Answer:
b e
becuase it is b and e
Find the missing side length. Round to the nearest tenth
Answer:
5.4
Step-by-step explanation:
5^2+2^2=29
square root of 29=5.4
what does (+6) - (-2) =
Answer:
8
Step-by-step explanation:
Hope that helps :)
.....
Which of the following are true of the sample of 40 voters? Check all that apply.
The sample is not randomly chosen.
The sample should be larger to give more reliable information.
The sample size is too large to make inferences.
The sample size is too small to represent the population.
The sample size is too small and will show larger variation.
The sample is invalid because it randomly chooses voters.
The sample size is too small and can lead to false inferences.
Which statement about 214° is correct?
Answer:
A
Step-by-step explanation:
sin 214 = -0.5591
tan 214 = 0.6745
cos 214 = -0.8290
The correct statement about 214 degrees angle is sin 214 < 0 because sin 214 = -0.5591 and -0.5591 < 0 is true option (A) is correct.
What is trigonometry?Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.
We have statements:
sin 214 < 0
tan 214 < 0
cos 214 > 0
As we have given trigonometric ratio,
The trigonometric ratio can be defined as the ratio of the pair of a right-angled triangle.
From the trigonometric table:
sin 214 = -0.5591
tan 214 = 0.6745
cos 214 = -0.8290
Plug the above values in the inequality:
-0.5591 < 0 (true)
0.6745 < 0 (false)
-0.8290 > 0 (false)
Thus, the correct statement about 214 degrees angle is sin 214 < 0 because sin 214 = -0.5591 and -0.5591 < 0 is true option (A) is correct.
Learn more about trigonometry here:
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I need help please and thanks
Answer:
x = 1 y = -3 (1, -3)
Step-by-step explanation:
Use the Substitution Method
First, you have to turn the equations into slope intercept form (y = mx + b)
First equation
x - y = 4
subtract x from both sides
-y = -x + 4
divide each side by -1
y = x - 4
Second Equation
4x + y = 1
subtract 4x from both sides
y = -4x + 1
Turn the two new equations into one equation like so
-4x + 1 = x - 4
add 4x to both sides
1 = 5x - 4
add 4 to both sides
5 = 5x
divide each side by 5
x = 1
Fill in x in one of the original equations in order to find the value of y
4(1) + y = 1
4 + y = 1
subtract 4 from both sides
y = -3
The solution is (1, -3)hope this helps :)
equation for square and the area for square
Answer:
Area of a square = side * 4
Step-by-step explanation:
5th time asking this question i dont know what you people are doing but i have yet to get an answer from anyone so please just answer this (no blank answers) ive wasted over 400 points trying to get an answer
Answer:
3.since two base side are equal
4.sum of interior angle of the triangle is 180
9.base angle of isosceles triangle
16.the inscribed angle from the diameter is 90°
21.being CAE=90°
Answer:
3.since two base side are equal
4.sum of interior angle of the triangle is 180
9.base angle of isosceles triangle
16.the inscribed angle from the diameter is 90°
21.being CAE=90°
Step-by-step explanation:
(a) Whats the area of a rectangular field is 3888 m. If the length of the field is 72 m, what is its width?
(b)The perimeter of a rectangular painting is 374 cm. If the width of the painting is 88cm, what is its length?
Answer:
part a is 54 part b is 99
Step-by-step explanation:
72 x ? =3888
x=54
374 is the perimeter. You have a side that is 88cm so the opposite side will be 88 cm as well. 374-176=198
so between the last 2 sides we have 198. The sides will be equal so you just divide it by 2
so the top and bottom of the rectangle are 99 and both sides are 88
which is greater 5 or |-9|
Answer:
|-9| is greater.
Step-by-step explanation:
|-9| = 9
Leo has 113 cups of sugar. He uses 34 cups of sugar in a recipe. How much sugar does Leo have left?
Leo has 2112 cups of sugar left.
Leo has 712 cups of sugar left.
Leo has 512 cups of sugar left.
Leo has 14 cup of sugar left.
Answer:
the answer isn't any of those
what is 8,ooo plus 10,000
can u solve it..
my sister need help
Answer:
18 3/4
Step-by-step explanation:
Please help me ... I neddddd helpppp.
Answer:
the pattern is a just not the number at the end, i.d.k what it would be then
Step-by-step explanation: