Answer:
Step-by-step explanation:
-2(x-5)=-14
-2x+10=-14
-2x=-14-10
-2x=-24
-x=12
x=-12
2x2+ 5x -4 = 0
• _Value of the Discriminant:
• Number of Solutions:
• Number of x-intercepts:
• Type of Solutions:
Answer:
Step-by-step explanation:
value of discriminant:
[tex]5^{2} - 4 (2)(-4)\\=25+32\\=57\\[/tex]
As the value of discriminant is larger than zero, so there are 2 distinct solutions.
2 solutions also mean there are 2 x-intercepts.
Extra points!!
Given: Circle M
Given: Segment MA bisects Segment BC
Prove: Angle B is congruent to Angle C
Answer:
See Explanation
Step-by-step explanation:
[tex] In \: \odot M, \: \overline{MA} \: bisects \: \overline {BC}\\... (given) \\\\
\therefore \overline{MN} \: bisects \: \overline {BC}\\... (\because B-N-C) \\\\
\therefore BN \cong NC... (1)\\\\
In\: \triangle BMN \:\&\:\triangle CMN\\\\
BM\cong CM\\ (radii \: of \: same \: circle) \\\\
MN\cong MN\\ (common \:side) \\\\
BN \cong NC\\ (from\:1)\\\\
\triangle BMN \:\cong\:\triangle CMN\\.. (by\: SSS\: postulate) \\\\
\therefore \angle B\cong \angle C.. (CACT) [/tex]
Which one of the following equations is equivalent to 3x-12 = -9?
A 3 - 5 = -6
B 70 - 3=4
2x = 4
D 2+3 = 2 - 1
the answer choices don't make sense but I can help u with solving the equation it's x = 1
3x-12=-9 , minus 12 on both sides3x = 3 , divide 3 on both sides x = 1now that u know this go through your answer choices and solve their equation and see which one produces x = 1 and that'll be the answer!!
22. Part-Time Job
You work at a grocery store part-time. You estimate that you spend three-fifths of your time stocking shelves. You work 20 hours each week. How many hours of your work week do you spend stocking shelves?
Answer: 12
Step-by-step explanation:
You spend 20 hours working at a grocery store each week. You spend 3/5 of that time stocking shelves. You need to find out what 3/5 of 20 is.
Step 1: Turn 20 into a fraction
20 = 20/1
Step 2: Multiply
3/5 x 20/1 = 60/5
Step 3: Simplify
60/5 = 12
You bake cookies for a bake sale. The ratio of chocolate chip cookies to oatmeal cookies is 4 : 3. You bake 12 oatmeal cookies. How many chocolate chip cookies do you bake
Answer:
4:3
8:6
12:9
you will bake 9 chocolate chip cookies.
I will bake 16 chocolate chip cookies for every 12 oatmeal cookies I bake.
What is a ratio?A ratio is a comparison of two or more similar quantities in simplest form.
a/b can be written as a : b.
Given, The ratio of chocolate chip cookies to oatmeal cookies is 4 : 3, which is 4/3, and assuming for 12 oatmeal cookies I bake x chocolate chip cookies.
∴ 4/3 = 12/x.
x = 12×4/3.
x = 4×4.
x = 16.
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ALDS championship hats are sold in boxes of 18. If the Tampa Bay Rays need 168 hats for team members and staff, how many boxes of hats would they need to order? Explain your
reasoning
Answer: 3024
Step-by-step explanation:
mutiply 18x 168
The length of a car is 15 2/5 meters. What is the length of 7 cars?
Answer:
107 4/5. This is because 2/5 is 0.4 and 15 times 7 is 105.
Angle pair equations!! 10 points :)
Answer:
78°
Step-by-step explanation:
(I'm assuming that segment AB is a straight line {180 degrees})
1. since angles DCA and DCB equals 180°, we can set up the equation 4x+2+3x+3=180.
2. if you solve that, you'll get x=25.
3. plug 25 (x) into 3x+3 -> 3(25)+3
4. 3(25)+3=78
5. answer: 78°
Which expression is equivalent to sin(20°)cos(80°) – cos(20°)sin(80°)?
sin(–60°)
cos(–60°)
cos(60°)
sin(60°)
Answer:
A. sin(-60°)
Step-by-step explanation:
test on edge
Answer of given expression is sin(-60°)
What is Trigonometric functions?
Trigonometric functions defined as the functions which show the relationship between angle and sides of a right-angled triangle.
Given expression,
sin(20°)cos(80°) – cos(20°)sin(80°)
∵ sin(A-B) = sinA.cosB – cosA.sinB
∴ sin(20°-80°)
So, sin(-60°)
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Select the correct answer.
Which property of equality was used to solve this equation?
x − 5 = -14
x − 5 + 5 = -14 + 5
x = -9
A. addition property of equality
B. subtraction property of equality
C. multiplication property of equality
D. division property of equality
The addition property of equality was used to solve this equation. option A is correct.
A solution is given we have to determine the solution contains which property of equality.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
Here,
x − 5 = -14
x − 5 + 5 = -14 + 5
x = -9
We can see, in step 2 5 is added to both sides of an equality, which implies the property of additions.
Thus, the addition property of equality was used to solve this equation. option A is correct.
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question in the image
Answer 6.
Step-by-step explanation:
Answer:
A.) 1
Step-by-step explanation:
A trapezoid only has one pair of parallel sides.
Dante and Erica just returned from a comic bookstore that sells new and used comic books.
Dante spend $10.25 on 2 new and 3 old books, and Erica spend 13.75 on 10 used and 3 new
ones. Which system of equations can be used to find how much the new and old books costs?
HURRRY PLZ lets GO CHECK PROFILE I WILL GIVE I BRAINLY
Answer:
[tex]\angle AFY=140^\circ[/tex]
[tex]\angle LIM=117^\circ[/tex]
Step-by-step explanation:
The sum of interior angles of a polygon of n sides is:
[tex]S=180^\circ (n-2)[/tex]
The image shows a 6-side polygon. The sum of the interior angles is:
[tex]S=180^\circ (6-2)=720^\circ[/tex]
The sum of all the shown interior angles must equal 900°:
[tex]125+100+y+117+121+y+23=720[/tex]
Simplifying:
[tex]486+2y=720[/tex]
Solving:
[tex]2y=720-486[/tex]
[tex]2y=234[/tex]
[tex]y=234 / 2=117[/tex]
y=117°
Thus the angle AFY is:
[tex]\angle AFY=y+23=117+23=140[/tex]
[tex]\boxed{\angle AFY=140^\circ}[/tex]
[tex]\angle LIM=y=117[/tex]
[tex]\boxed{\angle LIM=117^\circ}[/tex]
Sam decides to download some new music. She downloaded 3 albums and 10
singles, and her total was $61. The next day she purchased more music from the
same retailer and downloaded 6 more albums and 8 singles for a total of $74.
Assuming that all albums and singles are the same price, how much did she spend on
each album and each single? Write a system of equations to represent this
situation. Then solve for the solution using the elimination method.
Answer:
An album costs $7 while a single cost $4
Step-by-step explanation:
Let the amount spent on singles be $x while the amount spent on albums be $y
First day, she downloaded 3 albums and 10 singles that cost $61
Hence;
3y + 10x = 61 ••••••••(ii)
Second day, she downloaded 6 albums and 8 singles for $74
8x + 6y = 74 ••••••••(ii)
We now want to use elimination method to solve both equations
Multiply equation i by 2 and ii by i
20x + 6y = 122
8x + 6y = 74
Subtract ii from i now
12x = 48
x = 48/12
x = 4
Recall;
3y + 10x = 61
substitute for x
3y + 10(4) = 61
3y + 40 = 61
3y = 61-40
3y = 21
y = 21/3
y = 7
An album costs $7 while a single cost $4
Angle R measures 47 degrees if the angle is rotated 180 degrees around the origin what is the angle of R?
Given parameters:
Measure of Angle R = 47°
Operation on the angle; rotated through 180°
Unknown:
what is angle R now= ?
Solution:
Angle R was originally an acute angle which was 47°;
And an additional 180° rotation will produce;
New Angle R = 47 + 180 = 227°
The new dimension of the angle is 227°
What is the distance between
(2,3) (8,9)
Answer:
Step-by-step explanation:
What happens in the falling action of Ares god of war?
Answer:
In the Ancient World, the most powerful forces that shaped human destiny were personified by polytheistic religions in the form of Gods. In this way, the ancients believed that they could influence impersonal forces and powers. One of these was war. In the past, conflict was a constant fact of everyday life, and peace was rare. This is what made the Greek God of War, Ares, so influential in mythology and religion.
The origin of the myth of Ares
Ares was the son of Zeus and Hera, was regarded as one of the Twelve Olympians, and was one of the major deities of the Greek world. The etymology of the name Ares means curse or ruin. Unlike many other religions, such as Roman mythology, the Greeks did not worship war. They were very ambivalent about the God who personified for them the power and bravery needed for victory in war. For the Greeks, he represented the worse in war and conflict
-3(4x + 9) = 15
Please help
Answer:
x=-7/2
Good luck!
Please help
8 square root 5 minus square root 45
Answer:
[tex]5 \sqrt{5 \: } is \: \: the \: \: answer \: \: of \: \: this \: \: question[/tex]
16+6×(4 exponent -1)
Answer:
17.5
Step-by-step explanation:
Beth wants to paint the four walls of her rectangular bedroom. Her room is 10 feet wide, 13 feet long, and 8 feet high. She will not paint her rectangular door, which is 3 feet wide and 7 feet high. What is the total area of the walls that Beth needs to paint?
A. 347 square feet
B. 368 square feet
C.578 square feet
D. 1019 square feet
E. 1040 square feet
Answer:
D; 1019 square feet
Step-by-step explanation:
10 x 13 x 8 = 1040 square feet
3 x 7 = 21 square feet
1040 - 21 = 1019 square feet (:
Answer:
10x13 is 130
130x8 is 1040
Step-by-step explanation:
4 -4
Which one is truth
Answer:
4
Step-by-step explanation:
Answer:
nothing is true
cuz 4-4=0
Step-by-step explanation:
please mark as the brainliest
-3x + 14 = 7x - 7
Jelppppppp
Step-by-step explanation:
yeah she be correct 2.1
Bobby and his brother had 3/4 of a pizza leftover after dinner. Their father came home and are 1/2 of the leftover pizza .how much pizza did their father eat
Answer:
3/8 of the pizza
Step-by-step explanation:
3/4*reciprocal of 2
3/4*1/2
3/8
3/8
3/4÷1/2= 0.375
0.375= 3/8
-10 |h+5| -3= -83
what is the answer to this the topic is absolute value.
Answer:
the absolute value is 3,-13
In the figure below, lines m and n are parallel:
In the diagram shown, 27 measures 97 degrees. The measure of 28 is
degrees?
Answer:
the measure of angle 8 is 83 degrees
Step-by-step explanation:
8+-2w>4
I dont know this i gotta solve fore w.
Answer:
w < 2
Step-by-step explanation:
Subtract 8 from both sides.
-2w > -4
Divide both sides by two. WHEN YOU DIVIDE BY A NEGATIVE, the sign FLIPS!
w < 2
There ya go! Please mark me as Brainliest; I need it to move on to the next level. =D
Identify the initial value and rate of change for the graph shown. (4 points)
A coordinate plane graph is shown. A line passes through the y-intercept at 1 and through the point 5 comma 4.
Group of answer choices
Initial value: 1, rate of change 5 over 3.
Initial value: 1, rate of change 3 over 5.
Initial value: 3 over 5., rate of change: 0
Initial value: 5 over 3., rate of change: 0
Answer:
a
Step-by-step explanation:
Answer:
The answer is B.
Step-by-step explanation:
y=mx+b
point (5,4)
x=5
4=m(5)+1
5m=3
m=3/5
rate of change = 3/5
Find the area of the geometric figure.
Answer:
area is 210 mi
Step-by-step explanation:
Answer:
210
Step-by-step explanation:
21 x 7 = 147
14 - 7 = 7
7 x 9 = 63
147 + 63 = 210
Create three different expressions that are each equal to 20. Each expression should include only these three numbers:
4
-2
10
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The three expressions that use only 4, -2, and 10 and that are equal to 20 are:
4 x 2 - (-2) + 10
4 x 10 + (-2) x 10
-2 x (-2) + 4x4
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example:
2 + 3x + 4y = 7 is an expression.
We have,
20
The three expressions that are equal to 20 using only 4, -2, and 10 are:
First expression:
4 x 2 - (-2) + 10
= 8 - (-2) + 10
= 8 + 2 + 10
= 20
Second expression:
4 x 10 + (-2) x 10
= 40 - 20
= 20
Third expression:
-2 x (-2) + 4x4
= 4 + 16
= 20
Thus,
The three expressions that use only 4, -2, and 10 and that are equal to 20 are:
4 x 2 - (-2) + 10
4 x 10 + (-2) x 10
-2 x (-2) + 4x4
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