HELP!! Find the value of x in the triangle!! 20PTS!!
Answer:
x = 5°
Step-by-step explanation:
We know that in a triangle, the measure of an exterior angle is equal to the sum of its two remote interior angles, therefore:
7x + 4 + 61 = 20x
7x + 65 = 20x
13x = 65
x = 5°
Answer:
Solution given:
61°+(7x+4)°=20x [ exterior angle is equal to the sum of two opposite interior angle]
65+7x=20x
65=20x-7x
13x=65°
x=[tex] \frac{65}{13} [/tex]=5°
value of x=5°
I need help pls need to fill space lsadkasldka;lsdkalsdkalsdkasl;daks adl;kasl;daks
Answer:
D
Step-by-step explanation:
Find the area of the blue shaded shape.
Answer:
assuming that 1 square is 1 ft, 22ft²
Step-by-step explanation:
4 + 8 + 10 = 22
Answer:
22cm²
Step-by-step explanation:
1 unit square = 1cm
Number of unit squares = 22
Area of square = side × side
=( 1×1) cm
Area of 1 unit square = 1cm²
Area of 22 unit squares = 22cm²
Hope it helps.
which statement best explains the value of 18 - (-5)?
Answer:
The additive inverse of −5 is +5, so 18 − (−5) = 23. The additive inverse of −5 is −5, so 18 − (−5) = 23. The additive inverse of −5 is −5, so 18 − (−5) = 13.
Subtract (-4+6i) from (1-4i)
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{5 - 10i}}}}}[/tex]
Step-by-step explanation:
There are two methods to find out the addition and subtraction of algebraic expressions. In horizontal method, expressions are arranged in same row and put sign for addition or sign for subtraction and remove the bracket and then simplify. In vertical method, expressions are arranged in different rows such that like terms are in same volume and unlike in different columns and simplify.
So, I am going to use these both methods.
In a vertical arrangement ,
( See attached picture)
( While subtracting , sign of each term of the second expression changes )
Next method,
In a horizontal arrangement, we have
[tex] \sf{1 - 4i - ( - 4 + 6i)}[/tex]
⇒[tex] \sf{1 - 4i + 4 - 6i}[/tex]
⇒[tex] \sf{1 + 4 - 4i - 6i}[/tex]
⇒[tex] \sf{5 - 10i}[/tex]
Hope I helped!
Best regards!!
-13 can be classified as
Answer:
The answer is Rational Number
Step-by-step explanation:
A golf ball has a diameter of 1.6 cubic inches. How many golf balls will fit inside of a storage unit that is 10 feet wide, 20 feet long, and 8 feet high? (Volume of a sphere = 4/3 π r3 1291962 balls 1291962 balls 2764800 balls
Answer:
1291962 golf balls
Step-by-step explanation:
golf ball: 4/3П(0.8)^3=2.14 in^3
storage unit: 120(240)(96)=2764800 in^3
2764800/2.14=1291962 golf balls
Number of golf balls that will fit inside of a storage will be 1291962 golf balls
diameter of golf ball = 1.6 in³
radius will be = 0.8 in³
it is known that 1 ft = 12 in
What is volume ?
Volume is a three dimensional space occupy by the body of particular shape such as here :
volume (V) of sphere golf ball with radius r : [tex]\frac{4}{3}\pi r^{3}[/tex]
[tex]\begin{aligned}V&= \frac{4}{3}\pi r^{3} \\&=\frac{4}{3}\pi (.8)^{3}\\&\approx 2.14 \text{\:in}^{3}\end{aligned}[/tex]
Volume of rectangle ([tex]V_{1}[/tex]) with length (l= 10x12 in.), breadth (b =20x12 in.) and height (h = 8x12 in.) : lbh
[tex]\begin{aligned}V_{1}&=lbh\\&=120\cdot240\cdot96\\&=2764800 \text{\:in}^3\end{aligned}[/tex]
therefore, number of golf balls will fit inside of a rectangular storage
will be : [tex]\frac{V_{1}}{V}[/tex]
[tex]\begin{aligned}\text{no. of golf ball}&= \frac{V_{1}}{V}\\&=\frac{2764800 \text{\:in}^3}{2.14}\\&\approx 1291962\end{aligned}[/tex]
number of golf balls will be 1291962.
check and know more about volume here :
https://brainly.com/question/9994313
#SPJ2
What is the answer to 16a5 b3/8ab ?
Answer:
When we are dividing exponents, there is this rule:
[tex]\frac{a^n}{a^m}=a^{(n-m)}[/tex]
So, in our case we have this:
[tex]\frac{16a^5b^3}{8ab} = \frac{16}{8}a^{(5-1)}b^{(3-1)}[/tex][tex]=2a^4b^2[/tex]
Suppose there is a pile of quarters, dimes, and pennies with a total value of $1.08
A) How much of each coin can be present without being able to make change for a dollar?B) Explain why $1.19 is the greatest amount of money it is possible to have without being able to make change for a dollar.
Answer:
a)
if 1 quarter = $ 0.25
1 dime = $ 0.10
1 penny = $ 0.01
so to make the total of $1.08 and its is also required to calculate the number of each coins present without being able to make change for a dollar
therefore we say;
1 Quarter + 8 dimes + 3 penny
: ( 1 × 0.25 ) + ( 8 × 0.10 ) + ( 3 × 0.01 )
: 0.25 + 0.80 + 0.03 = $ 1.08
b)
Now if you have a 4 Quarters, you have change for $1.
If you have 5 dimes, you have change for 2 Quarters.
If you have nickel; one of those can combine with 2 dimes to have a change for a Quarter.
If you have 5 pennies, you have enough change for 1 nickel
Therefore
(4-1)×0.25 + (5-1)×0.1 + (0×0.05) + (5-1)×0.01 = x
(3 × 0.25) + ( 4 × 0.1) + 0 + ( 4 × 0.01) = x
x = 0.75 + 0.4 + 0.04
x = $ 1.19
PROVED
Kim is watching a space shuttle launch from an observation spot 2 miles away. Find the angle of elevation from Kim to the space shuttle, which is at a height of 2.1 miles.
Answer:
46.4°Step-by-step explanation:
Find the diagrammatic representation in the attachment given.
We can see that the diagram is a right angled triangle. To get the angle of elevation, we will use one of the trigonometry identity SOH, CAH, TOA.
Given the adjacent of the triangle to be 2miles (observation spot from the point of launch)and the opposite (side facing the elevation angle) as 2.1miles (the height), we will use TOA.
tan∅ = opposite/adjacent
tan∅ = 2.1/2
tan∅ = 1.05
∅ = tan⁻¹1.05
∅ = 46.4°
Hence the angle of elevation from Kim to the space shuttle, which is at a height of 2.1 miles is approximately 46.4°
Jen and Marcus got 13 miles up river before they ran out of gas. They floated
12 miles back down river before they reached the shore. How far did they
get?
I have another one! someone help quick lol!! B is the midpoint of AC if AB=2x+1 and BC=5x-14 Find AC.
Answer:
AC = 22
Step-by-step explanation:
Given that B is the midpoint of AC , then AB = BC , that is
2x + 1 = 5x - 14 ( subtract 2x from both sides )
1 = 3x - 14 ( add 14 to both sides )
15 = 3x ( divide both sides by 3 )
5 = x
Thus
AC = AB + BC = 2x + 1 + 5x - 14 = 7x - 13 = 7(5) - 13 = 35 - 13 = 22
Jack met Jill Jill had 16 gallons of water in a bucket jack has ? gallons of water in his bucket answer the equation to figure out how much gallons he has in his bucket.If 3 =B and C=2 A=1 What does D eqaul when you figure it out multiply the number that D is equal to 5 times then the number you end up with needs to be multiplied 12 times the number you get subtract 100 from it then you have your answer.
Answer:
140
Step-by-step explanation:
A=1 B=2 C=3 D=4
4 x 5= 20
20 x 12=240
240 - 100=140
Answer: 140
Answer:
140
Step-by-step explanation:
What is the reciprocal of 5?
Answer:
reciprocal of 5 is 1 /5.......
-7/10 is at least twice a number k minus 4. Write an inequality.
Answer:
"At least" implies "greater or equal to".
Step-by-step explanation:
[tex]-\frac{7}{10} \geq (2k -4)\\[/tex]
The value of the variable k is greater than or equal to 33 / 20.
What is the solution to the equation?The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.
Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.
-7/10 is at least twice a number k minus 4. Then the inequality is given as,
- 7/10 ≥ 2k - 4
Simplify the inequality, then the value of the variable k will be
- 7 / 10 ≥ 2k - 4
4 - 7/10 ≥ 2k
33 / 10 ≥ 2k
33 / 20 ≥ k
The value of the variable k is greater than or equal to 33 / 20.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
#SPJ2
the utility industry has 428.5 thousand jobs in 2010 and is expected to decline at an average rate of 3 thousand jobs per year from 2010 to 2020 assuming this holds true what will be the utilities percent change for 2010 to 2020
Answer: 7%
Step-by-step explanation:
Given: Initial jobs = 428.5 thousand
Average rate of declining of jobs from 2010 to 2020 = 3 thousand jobs per year
From 2010 to 2020 , there are 10 years.
Total jobs declines till 2020 = 10 x (3 thousand)
= 30 thousand (Change in jobs)
Now, utilities percent change for 2010 to 2020 : [tex]\dfrac{change \ in \ job\ numbers}{Initial\ jobs}\times 100[/tex]
[tex]=\dfrac{30}{428.5}\times100\\\\\approx7.00\%[/tex]
Utilities percent change for 2010 to 2020 = 7 %
Answer:
c
Step-by-step explanation:
PLEASE HELP! ON TIMER! what would be the domain restriction? describe how you found the answer. 1 over x-3
Answer:
x cannot equal 3
Step-by-step explanation:
you cannot have a zero on the denominator so when the denominator equal zero, thats your domain restriction.
Write an expression for each verbal expression
1. the sum of one-third of a number and 27
Answer:
BelowStep-by-step explanation: Let the unknown no be x
1.
[tex]\frac{1}{3}\times x +27\\\\\frac{1}{3} x +27[/tex]
2.
[tex]x^2 \times 4\\\\= 4x^2[/tex]
3. The sum of the product and of 5 and a cubed number and 9
Find 8x+y when x=2 and y=5.
Answer:
21
Step-by-step explanation:
8x+y, when x=2 and y=5,
then 8*2+5. Because the 2 is right next to the 8, it isn't '82', but '8*2'
According to PEMDAS, multiplication is done first, so
8*2= 16,
16+5, which is 16+5= 21
The area of a rectangle is 46 square inches. If the length is 4 times the width, then find the dimensions of the rectangle. Round off your answers to the nearest hundreth.
Answer:
So the breadth of the rectangle is y= 3.39 inches
And the length is = x= 4y= 4* 3.39= 13.56 inches
Step-by-step explanation:
Let the length of the rectangle be given by x and the breadth be defined by y.
Then according to the area of rectangle
Area= Length * breadth
But length is 4 times its width so x= 4y
Therefore putting the values
Area= Length * breadth
46= x*y
46= 4y*y
46/4= y²
or
y ²= 11.5
Now taking the square root of both sides we get
y= √11.5=3.39116 inches
So the breadth of the rectangle is y= 3.39 inches
And the length is = x= 4y= 4* 3.39= 13.56 inches
The coefficient of determination is used to: compute correlations for truncated ranges. compare the relative strength of coefficients. identify curvilinear relationships. test correlations for causality.
Answer: compare the relative strength of coefficients.
Step-by-step explanation: The Coefficient of determination usually denoted as R^2 is obtained by taking the squared value of the correlation Coefficient (R). It's value ranges from 0 to 1 and the value obtained gives the proportion of variation in the dependent variable which could be attributed to it's correlation or relationship to th independent variable. With a R^2 value close to 1, this means a large portion of Variation in a variable A could be explained due to changes in variable B while a low value signifies a low variance between the variables. Hence, the Coefficient of determination is used in comparing the relative strength of the Coefficients in other to establish whether a weak or strong relationship exist.
ASAP Find the measure of the third angle of a triangle if the measures of the other two angles are given. 118.6 and 42.3 A. 19.1 B. 36.7 C. 39.1 D. 29.1
Answer:
A. 19.1
Step-by-step explanation:the total measure of a triangle is 180°
118.6+42.3+x=180
160.9+x=180
x=180-160.9
x=19.1°
Find the midpoint of the segment with the given endpoints. (1/4,-4/9) and (-5/2,1/2). 21 points help me out
Answer:
(-9/8, 1/36)
Step-by-step explanation:
Midpoint Formula: [tex](\frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2} )[/tex]
Step 1: Find midpoint x
x = (1/4 + -5/2)/2
x = (-9/4)/2
x = -9/8
Step 2: Find midpoint y
y = (-4/9 + 1/2)/2
y = (1/18)/2
y = 1/36
Step 3: Write midpoint coordinates
(-9/8, 1/36)
What is the simplified form of ether following expression ?
Answer:
C
Step-by-step explanation:
So we have the rational expression:
[tex]\frac{x^2-11x+30}{x^2-x-30}[/tex]
We can factor the numerator and the denominator:
Numerator:
[tex]x^2-11x+30[/tex]
Factor:
[tex](x-5)(x-6)[/tex]
Denominator:
[tex]x^2-x-30[/tex]
Factor:
[tex](x-6)(x+5)[/tex]
Substitute:
[tex]\frac{x^2-11x+30}{x^2-x-30}\\=\frac{(x-6)(x-5)}{(x-6)(x+5)}[/tex]
We can cancel out the (x-6). Thus:
[tex]=\frac{x-5}{x+5}[/tex]
Our answer is C.
You leave home at 10 AM on a trip and arrive at 12 noon. The trip is a total of 100 miles. How fast are you going at 11AM
Answer:
50mph
Step-by-step explanation:
PLEASE HELP! Simplify radical square root -100
Answer: OPTION 3 10i
Step-by-step explanation:
First of all, you need to know about imaginary number, or i.
i (imaginary number)= √-1
---------------------------------------------------------
√-100=√100 × √-1 ⇔ This splitting up √-100 to make it easier for you to understand.
√-1=i ⇔ As mentioned before of the concept of imaginary number
√100= 10 ⇔ It is a perfect square
√-100=√100 × √-1
√-100=10 × i
√-100=10i
Hope this helps!! :)
Please let me know if you have any question
Juliette bought a bag of gummy bears that cost
$2.74. She gave the clerk $10. How much money
will she get back in change?
Answer:
$7.26
Step-by-step explanation:
[tex]10\$ - \$2.74\\\\= \$7.26[/tex]
The amount of the money that she get back in change will be $7.26.
What is subtraction?It simply implies subtracting something from an entity, group, location, etc. Subtracting from a collection or a list of ways is known as subtraction.
Juliette bought a bag of gummy bears that cost $2.74.
She gave the clerk $10.
Then the amount of the money that she get back in change will be
⇒ $10 – $2.74
⇒ $7.26
More about the subtraction link is given below.
https://brainly.com/question/4319655
#SPJ2
Please Help Me
For the figure below m<ABC = 70°. Which theorem or postulate can be used to determine m<DBC? What is m<DBC? (pic of the drawing below)
Answer:
38°
Step-by-step explanation:
<ABD and <DBC are two interior angles that make up <ABC.
Based on the Angle Addition Theorem, the following equation can be used to find m<DBC:
[tex] (3x + 5) + (6x - 16) = 70 [/tex]
Find x
[tex] 3x + 5 + 6x - 16 = 70 [/tex]
[tex] 9x - 11 = 70 [/tex]
[tex] 9x = 70 + 11 [/tex]
[tex] 9x = 81 [/tex]
[tex]x = \frac{81}{9} [/tex]
[tex] x = 9 [/tex]
We are given that, m<DBC = (6x - 16)°
Plug in the value of x to find the measure
m<DBC = 6(9) - 16 = 54 - 16 = 38°
Multiply. (2x-1) (x^2+x-3)
Show steps please
Answer:
2x^3+x^2-7x+3
Step-by-step explanation:
To do this you have to multiply the first term in the first parenthesis so you would multiply 2x by x^2 x and -3 so you get 2x^3+2x^2-6x for the first part and then you would multiply -1 by the terms again so you would get -x^2-x+3 so you would get 2x^3+2x^2-6x-x^2-x+3 then you would add add teh like terms together so you get 2x^3+x^2-7x+3 as the final answer
4(-6)+y=10
can someone hellp
Answer:
y = 34
Step-by-step explanation:
PEMDAS =
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
Remember to follow PEMDAS. First, multiply -6 with 4:
-6 * 4 = -24
-24 + y = 10
Isolate the variable, y. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. Add 24 to both sides:
-24 (+24) + y = 10 (+24)
y = 10 + 24
y = 34
y = 34 is your answer.
~
Answer:
y = 34Step-by-step explanation:
[tex]4\left(-6\right)+y=10\\\\\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a\\-4\times\:6+y=10\\\\\mathrm{Multiply\:the\:numbers:}\:4\times\:6=24\\-24+y=10\\\\\mathrm{Add\:}24\mathrm{\:to\:both\:sides}\\-24+y+24=10+24\\\\Simplify \\y=34[/tex]