Answer:
(x, y) = (3, 3)
Step-by-step explanation:
[tex]x - 2y = - 3 \\ 2x + 2y = 12 \\ [/tex]
To apply the method of elimination, you must add the 2 equation if one of the variables is cancelled out. Luckily, the equations are already in a form where we can add them and y will be cancelled out.
[tex](x - 2y) + (2x + 2y) = - 3 + 12[/tex]
[tex]3x = 9[/tex]
[tex]x = 3[/tex]
Then we replace x on any equation to find y
[tex]x - 2y = - 3 \\ 3 - 2y = - 3 \\ - 2y = - 6 \\ y = 3[/tex]
so the solution is
x = 3 and y = 3
Help me pleaseeee!!!
Answer:
90 degree angle
Step-by-step explanation:
What is the measurement of this angle? -90 60 70 80 30 20 110 100 60 OS 01 01 ostot O OST 0 10 20 30 40 50 60 40 30 120 130 140 150 160 170 180 20 8 Submit Hal. DI
Seriousally???Step-by-step explanation:
The measurement of angle is shown below.
What are the Type of angles?We have the following types of angles as
Zero angleAcute AngleObtuse angleRight AngleStraight angleReflex angleComplete angleAngles can be categorized according to their degree angle magnitude:
Zero degreeWhen both angle arms are at the same place, a zero angle is created. Rays emanating from the same spot at an angle of zero.
Acute angleThe measurement of an angle that is larger than 0 but less than 90 is called an acute angle.
Right angleThe angle that measures accurately 90 is the right angle.
Obtuse angleThe definition of an obtuse angle is an angle that is larger than 90 but less than 0.
Straight AngleThe exact measurement of an angle 180 is a straight angle.
Reflex angleThe measurement of an angle that is greater than 180 but less than 360 is called a reflex angle.
Complete angleThe exact measurement of an angle is 360 its complete angle.
So, 90 is Right Angle
60 is Acute Angle
70 is Acute angle
80 is Acute angle
30 is Acute Angle
20 is Acute Angle
110 is Obtuse Angle
100 is Obtuse Angle
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look at the shaded shapes the area of shape a is 3cm what is the area of shape b
Answer:
(3×7)+(1.5×5)
21+7.5
28.5cm^2
Answer:
= 28.5cm²
Step-by-step explanation:
A is a full diamond which is equal to 3cm²
B has: 7 full diamonds and five 1/2 diamonds
Five 1/2 diamonds = 2 full diamonds and 1/2 a diamond.
If 1 diamond(A) = 3cm²
What about 9 diamonds = ?
= (9 × 3) ÷1
= 27cm²
If 1 diamond(A) = 3cm²
What about 1/2 a diamond = ?
= 1/2 × 3
= 1.5cm²
Total = 27 + 1.5
= 28.5cm²
Which equation represents the following quadratic equation written in vertex form?
x2 + 4x - 2= 0
the Answer is x= -- 2 + V 6
what is the domain of y=Vx+7+5
Answer:
The Domain is x>-7 or C
The Range is x>5 or b
Step-by-step explanation:
edge
The domain of the function y = √(x+7) + 5 is [-7, ∞).
What is a function?A function has an input and an output.
A function can be one-to-one or onto one.
It simply indicated the relationships between the input and the output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
The given equation is y = √(x+7) + 5.
For the expression under the square root to be non-negative, we must have x + 7 ≥ 0.
The domain of the function is all real numbers greater than or equal to -7.
Thus,
The domain of the function y = √(x+7) + 5 is [-7, ∞).
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if the minute hand on a clock moves from the 12 to the 6 how many degrees has it rotated
180 degrees
12 to 6 6 is directly below the 12 so rotating it clockwise to the right would be exactly 180 degrees (a straight angle)
HELPPP MEEE PLEASEEEE!!!!
Answer:
#1 is 8
#2 is -18
Step-by-step explanation:
#1
13-5=8
#2
-13 - 5= -18
i need help rn plsssss
Answer:
75 degrees
Step-by-step explanation:
3x+15 = 4x - 5
-3x -3x
15=x-5
+5 +5
x=20
4(20)-5 = 75
Answer:
75
Step-by-step explanation:
1 and 2 are corresponding angles meaning that they are equal to each other or congruent
so we set up an equation
4x-5=3x+15 and since for x
step 1 subtract each side by 3x
4x-3x=x
now we have
x-5=15
step 2 add 5 to each side
5+15=20
x=20
now we just plug in 20 to 4x - 5
4x20=80
80-5=75
therefore your answer is 75
anyone got ph recommendations lol
Answer: hmmmmmmmmmmmmmmmm no sorry
Step-by-step explanation: thanks for the points tho G
In AHIJ, h = 24 cm, j = 62 cm and ZJ=70°. Find all possible values of ZH, to the
nearest degree.
Answer:
21 degrees
Step-by-step explanation:
trust me
Use an area model to multiply (3x+7)(4x+5).
Fill in the blanks with the correct numbers.
(blank) x^2+(blank) x+(blank)
Answer: 12x^2 + 43x + 35 (if you go to k12)
Step-by-step explanation: took the quiz :) (also, sorry forgot to actually answer..)
After multiplication, we get [tex]12x^{2} +43x+35[/tex]
Multiplication :We have to multiply,
[tex](3x+7)(4x+5)[/tex]
Now multiplying both term,
[tex]=(3x+7)(4x+5)\\\\=12x^{2} +15x+28x+35\\\\=12x^{2} +43x+35[/tex]
After multiplication, we get [tex]12x^{2} +43x+35[/tex]
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whihc of the following situation represents a non-proportional function?
can you guys please help me? Algebra 1
Answer:
since monomial means a one term expression... A, D and E look good
Step-by-step explanation:
PLEASE ANSWER! I NEED THE ANSWER IN THE NEXT HOUR! The table shows the number of teams remaining in each round of a tournament. Is the number of teams linear function of the number of rounds? Explain.
Answer:
No
Step-by-step explanation:
The equation would be 32 times (1/2)^x.
Linear equations won't have exponents, because this is an exponential equation.
20 points need help ASAP:A yellow jacket can fly 4.5 meters in 9 seconds. How fast in kilometers
per hour can a yellow jacket fly?
Answer:
1.8 KMH
Step-by-step explanation:
to get the meters per second, simply divide the meters by the seconds. 4.5/9= .5
now, to convert from meters per second to kilometers per hour, multiply the meters per second by 3.6.
.5 x 3.6 = 1.8
Answer:
1.8 km/h
Step-by-step explanation:
Use dimensional analysis:
4.5m/9sec x 0.001km/1m x 3600sec/1hour=
16.2km/9hr=
1.8 km/h
I need help whats 5t = 7 1/2
Answer: t= 3/2
Step-by-step explanation: 5/ 7 1/2 = 3/2
Answer:
t = 7/10 = 0.700
Step-by-step explanation:
STEP
1
:
1
Simplify —
2
Equation at the end of step
1
:
1
5t - (7 • —) = 0
2
STEP
2
:
Rewriting the whole as an Equivalent Fraction
2.1 Subtracting a fraction from a whole
Rewrite the whole as a fraction using 2 as the denominator :
5t 5t • 2
5t = —— = ——————
1 2
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :
2.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
5t • 2 - (7) 10t - 7
———————————— = ———————
2 2
Equation at the end of step
2
:
10t - 7
——————— = 0
2
STEP
3
:
When a fraction equals zero :
3.1 When a fraction equals zero ...
Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.
Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.
Here's how:
10t-7
————— • 2 = 0 • 2
2
Now, on the left hand side, the 2 cancels out the denominator, while, on the right hand side, zero times anything is still zero.
The equation now takes the shape :
10t-7 = 0
Solving a Single Variable Equation:
3.2 Solve : 10t-7 = 0
Add 7 to both sides of the equation :
10t = 7
Divide both sides of the equation by 10:
t = 7/10 = 0.700
One solution was found :
t = 7/10 = 0.700
Number 14 plsssssssssssssss
Answer: D
Step-by-step explanation: Because Africa wasn't invited to the Berlin conference, they started to struggle economically.
Answer: I believe it's D
Hope this helped love<3
Nina pays $32.67 to mail a package. It costs $0.45 per ounce to mail package. How much does Nina's package weight?
) Fred buys a video game disk for $4. There was a discount of 20%.What is
the sales price?
Answer:
so 4 dollars is discount
100-20=80 so
4 dollars =80%
1 dollar=20%
80+20=100
4+1=5
original price=$5
Answer:
I think is may be $3.20 I may be wrong sorry if I am.
Step-by-step explanation:
Which function is graphed
Answer -2-
Step-by-step explanation:
go pico go go go go pico go (help me answer this )
Answer:
a
Step-by-step explanation:
How many centimeters of cubic amounts to the volume of the cube with a edge of 0.1 m
Answer:
[tex]V=1000\ cm^3[/tex]
Step-by-step explanation:
The edge of the cube, a = 0.1 m
We need to find the volume of the cube. The formula for the volume of the cube is given by :
[tex]V=a^3[/tex]
Put the respected values,
[tex]V=(0.1)^3\\\\V=0.001\ m^3\\\\or\\\\V=1000\ cm^3[/tex]
So, the volume of the cube is equal to [tex]1000\ cm^3[/tex].
Let x=−118 and y=−114 .
Which expression has a negative value?
Multiple choice question.
A)
x+y
B)
x−y
C)
x·y
D)
xy
Answer:
A
Step-by-step explanation:
negative +negative =negative
Hannah decided to make finger gelatin for a huge children’s party. She had to make 8 packs of gelatin. Each pack needed 2 cups of water. How many quarts of water will she need? a 8 quarts
b 3 quarts
c 4 quarts
d 6 quarts
Answer:
C.) 4 quarts
Step-by-step explanation:
(Keep in mind that 4 cups=1 quart
1 pack=2 cups2 packs=4 cups/1 quart3 packs=6 cups4 packs=8 cups/2 quarts5 packs=10 cups6 packs=12 cups/3 quarts7 packs=14 cups8 packs=16 cups/4 quarts16 cups=4 quartsHope this helped!! :)
Stay safe and have a wonderful day/night!!!!!
Brainliest?!?!
Answer:
4 quarts
Step-by-step explanation:
8x2c= 16oz
16oz÷2c= 8pt
8pt÷2pt=4qt
4QT
Help please find the area the answer bank is on the right
Brainiest answer to whoever is first
STEP 1: Find the area of the rectangle.
Area = l×b
Area = 19×6
= 114
STEP 2 = Find the area of the triangle.
Area = 1÷2 × base × height
Area = 1÷2 × 6 × 7
= 21
STEP 3 : Add the areas of the rectangle and the triangle to find the area of the whole figure.
∴ 114+21 = 135
FINAL ANSWER = 135
PLEASE MARK THIS ANSWER THE BRAINLIEST
Write the equation for the line below in y=mx form.
please answer this correctly
Answer:
a
Step-by-step explanation:
PLEEEEEAASE HELP IM GIVING 100 POINTS TO WHOMEVER DOES THIS ENTIRE WORKSHEET
Answer:
Dude just why i just went to your profile and your a scammer
Step-by-step explanation:
Answer:
Joe mama
Explained:
Your mother is severely overweight
If ABCD is a parallelogram, m
supplementary)
What would be the angles for K, J, and L?
Answer:
I think its 120°. I don't 100% know, but that's my guess.