Answer:
[tex]\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:x=-2,\:y=2}[/tex]
Step-by-step explanation:
[tex]\begin{bmatrix}-7x-6y=2\\ 7x+4y=-6\end{bmatrix}[/tex]
[tex]\mathrm{Substitute\:}x=-\frac{2+6y}{7}[/tex]
[tex]\begin{bmatrix}7\left(-\frac{2+6y}{7}\right)+4y=-6\end{bmatrix}[/tex]
[tex]\begin{bmatrix}-2-2y=-6\end{bmatrix}[/tex]
[tex]\mathrm{For\:}x=-\frac{2+6y}{7}[/tex]
[tex]\mathrm{Substitute\:}y=2[/tex]
[tex]x=-\frac{2+6\cdot \:2}{7}\\\\x=-2[/tex]
What is the measure of the angle shown
will give brainliest
It is between 0°and 45°.
The left ray of the angle (The left arrow) is facing up and is at zero. THe right ray is at 45.
Solve the equation for the red variable.
Answer:
d/r
Step-by-step explanation:
d = rt
t = d/r
The U.S. population in 1910 was 92 million people. In 1990, the population was 280 million. This could model either a linear or exponential growth. You will create both and then look at the true population increase and decide which model is closer the the true growth.
Which list of number below represent the growth from 1910 to 1990 as an exponential model? (jumping every 20 years)
Question 3 options:
92 mil, 105 mil, 173 mil, 220 mil, 280 mil
92 mil, 110 mil, 175.5 mil, 220.8 mil, 280 mil
92 mil, 121.4 mil, 160.3 mil, 211.6 mil, 280 mil
92 mil, 139 mil, 186 mil, 233 mil, 280 mil
Answer:
this answer is simply exponential growth also you did not put in a graph so i have to kind of improvise here also this choice SHOULD be the answer: 92 mil, 139 mil, 186 mil, 233 mil, 280 mil
i did the math and this is what i got unless i did something wrong but either way hope this helps lol
Step-by-step explanation:
PLEASE ANWSER CORRECTLY!! I WILL MARK BRAINIEST!! LOOK AT PICURE!!
Answer:
the answer is (2,4) because of going down one unit you end up at (-2,4) and reflecting that you get (2,4)
Find the value of y+1 given that 2y+8=4.
Answer:
[tex]2y + 8 = 4 \\ 2y = 4 - 8 \\ 2y = - 4 \\ y = \frac{ - 4}{2} \\ y = - 2 \\ y + 1 = - 2 + 1 \\ \boxed{y + 1 = - 1}[/tex]
Therefore, the value of (y+1) is -1
(y+1) = -1 is the right answer.how do you turn 2/7 into a decimal (round in the Hundreds) Please helpppp
Answer:
Step-by-step explanation:.
what is 2.4% of 20 rounded to the nearest tenth (make it a decimal)
Rewrite 2.4% as a decimal by moving the decimal point 2 places to the left: 0.024
Now multiply by 20:
0.024 x 20 = 0.48
Rounded to the nearest tenth = 0.50
I ADDED A PIC
PLZZZZZZZZ HELP
Answer:
Continuous graph:
- The height of a plant as it grows
- Amount of fuel and distance traveled.
Discrete graph:
- Number of students per teacher
- Amount of chairs for each table
Step-by-step explanation:
In mathematics "discrete" means specific points that do not possess a continuous line but only the plotting of points above certain integer values. On the other hand, the word "continuous" in mathematics would be a graph that has a constant smooth line that lacks jumps between values and sometimes decimal numbers.
"The number of students per teacher" would be discrete as the amount of students per teacher would be a fixed integer value.
"The height of a plant as it grows" would be continuous as the height of the plants increases the longer it grows. This would be represented by a straight continuous line.
"Amount of fuel and distance traveled" would be continuous as the amount of fuel used correlates with the distance traveled, which can be represented with a continuous line.
"Amount of chairs for each table" would be discrete as it would be a set integer value for the amount of chairs at each table, not a continuous line.
Hope this helped! If you have any questions feel free to ask!
Someone help me with this I will make you brain
A car manufacturer is reducing the number of incidents with the transmission by issuing a voluntary recall. During 2 week of the re call, the manufacturer fixed 192 cars. In week 4, manufacturer fixed 184 cars. Assume that the reduction in the number of cars each week is linear. Write an equation function form to show the number of cars seen each week at the mechanic
Answer:
f(x)=-2x+192
Step-by-step explanation:
192-184=8
8/2=4 each week there is a reduction of 4 cars.
If you substitute the week into x you will find that the equation works.
-3f + 1 = -5 Please Help
Answer:
[tex] - 3f + 1 = - 5 \\ - 3f = - 5 - 1 \\ - 3f = - 6 \\ \\ f = \frac{ - 6}{ - 3} \\ \\ f = \frac{6}{3} \\ \\ f = 2[/tex]
I hope I helped you^_^
Mrs. Trout estimated her math class next year would include 28 students. The actual size of the class turned out to be 32 students. She calculated the percent error in the following way.
28 - 32 = -4
4
32
= 0.125%
Is Mrs. Trout correct? Explain why or why not.
Answer:
Step-by-step explanation:
3 ( 7+4)squared -14÷7
Answer:
43921
Step-by-step explanation:
PLEASE HELP ME I NEED HELP FAST PLEASEE
Answer:
20cm
Step-by-step explanation:
1. First find the area of the triangle
a = 1/2 × base × h
a = 1/2 × 10 × 11
a = 55cm²
2. Then times the area of the triangle by 8 to find the area of the rectangle
55 × 8 = 440cm²
3. Find the width of the rectangle:
The area of a rectangle is = l × w
22 × width = 440cm²
width = 440 ÷ 22
width = 20cm
Answer: Width = 20
Step-by-step explanation:
Give the area of triangle = x
So the area of rectangle = 8x
the area of triangle = (11 × 10) ÷ 2 = 55
So the area of rectangle = 8(55) = 440
The area of rectangle = W × L
So 440 = W × 22
W = 20
please give me a brainliest answer
taylor bought a fridge in a sale, where all the products were 15% of. they saved £52. what was the original price of the tv?
The city council is planning a long, narrow park with a playground at one end and a fountain at the other. They want the playground more than 5 blocks from the fountain and both items at least 2 blocks from the center of the park. The graph below represents the possible positions of the playground, relative to the center of the park. Which compound inequality represents the possible positions of the playground?
Answer:
1
Step-by-step explanation:
123456789098765432123456789098765432123457890987654321234567890987654321234567890987654321234567890*1*+0+1=1
Plz help me show my work
Answer:
x=9
Step-by-step explanation:
4x+2=7x-25(being vertically opposite angles)
2+25=7x-4x
27=3x
27/3=x
9=x
"A number Y increased by 25"
Hello There!
The Answer to your Question is
y+25
plus also means "increased"
No matter what y is, if we add 25, we increase it by 25.
Hope this helps you! :)
[tex]GraceRosalia[/tex]
Solve for x: -2|4x + 12| = -32 (5 points)
no solution
x = 1, x = -1
x = 1x = -7
x = -1, x = 7
Answer:
x = 1, x = -7
Step-by-step explanation:
Step 1: Divide both sides by -2.
[tex]\frac{-2(|4x+12|)}{-2} = \frac{-32}{-2}[/tex] [tex]|4x + 12| = 16[/tex]Step 2: Solve absolute value.
We know either 4x + 12 = 16 or 4x + 12 = -16.1st Possibility:
4x + 12 = 164x + 12 - 12 = 16 - 12 (Subtract 12 from both sides)4x = 44x/4 = 4/4 (Divide both sides by 4)x = 12nd possibility:
4x + 12 = -164x + 12 - 12 = -16 - 12 (Subtract 12 from both sides)4x = -284x/4 = -28/4 (Divide both sides by 4)x = -7Therefore, the answer is x = 1, x = -7.
pls help!! using the pythagorean theorem !!!
Answer:
≈8.66
Step-by-step explanation:
Pls mark me brainliest :))
Answer:
h= 8.7 cm
Step-by-step explanation:
5^2 + h^2 = 10^2
25 + h^2 = 100
25-25= 0 100-25=75
h^2 = 75
[tex]\sqrt{75}[/tex]= 8.7
h=8.7
hope this helps :)
please crown me brainliest!!!!!
hat is the value of x in the equation Negative 6 x = 5 x + 22?
–22
–2
2
22
Answer:
22
Step-by-step explanation:
6x = 5x + 22
6x - 5x = 22
x = 22
What graph represents the equation x=2
Option 1. The equation tells us that line is going through the x-axis at (2,0) in a straight line.
What re linear angles
Answer:
In geometry, a linear pair of angles is a pair of adjacent angles formed when two lines intersect each other. The linear pair of angles are always supplementary as they form on a straight line. In other words, the sum of two angles in a linear pair is always 180 degrees.
Step-by-step explanation:
I HOPE THIS HELPS
Someone help please?
Answer: x = -11
Step-by-step explanation: 85-96=-11 so -11+96 = 85 they are paralel to each other and have the same angle so yeahhhh...
PLZ HELP FAST THIS IS DUE IN 10 MINUTES WILL GIVE BRAINLIEST!
Which equation justifies why ten to the one third power equals the cube root of ten?
Group of answer choices
ten to the one third power all raised to the third power equals ten to the one third plus three power equals ten
ten to the one third power all raised to the third power equals ten to the one third times three power equals ten
ten to the one third power all raised to the third power equals ten to the three minus one third power equals ten
ten to the one third power all raised to the third power equals ten to the one third minus three power equals ten
Answer:
The answer is the second option
Step-by-step explanation:
ten to the one third power all raised to the third power equals ten to the one third times three power equals ten
Whats this game called
Answer:
It's Blurry
Step-by-step explanation:
sorry I don't lnow
12x - 4=4(2x+1) What is x?
Answer:
x = 2
Step-by-step explanation:
12x - 4 = 4(2x + 1)
Distribution first
12x - 4 = 4(2x) + 4(1)
12x - 4 = 8x + 4
Isolate x to one side
12x - 4 - 8x = 8x - 8x + 4
12x - 8x - 4 = 4
4x - 4 = 4
4x - 4 + 4 = 4 + 4
4x = 8
4x/4 = 8/4
x = 2
Identify the segment bisector of —
XY
Answer:
line n
Step-by-step explanation:
Line 'n' is the segment bisector.
We have a line segment XY given in figure.
We have to identify its segment bisector.
Define Segment bisector.A segment bisector divides a line segment into two equal parts.
According to the question, we have -
Line Segment XY and its Mid - Point M. It can be seen that the line 'n' is the segment bisector of the segment XY.
Hence, line 'n' is the segment bisector.
To solve more questions on segment bisector, visit the link below-
https://brainly.com/question/17647964
#SPJ2
A boat traveled 17 miles in 2 hours. At this rate, how many miles will the boat
travel in 1/2
hour?
Answer:
Travels 4.25 miles in thirty minutes
Step-by-step explanation:
In order to find the answer to this question you need to first find how many miles the boat travels in a hour and then divide it once more to find how many miles it traveled in half a hour.
[tex]17\div2[/tex]
[tex]`7\div2=8.5[/tex]
[tex]2=17[/tex]
[tex]1=8.5[/tex]
[tex]8.5\div2=4.25[/tex]
[tex]=4.25[/tex]
Hope this helps.
Help me with this
50 POINTS for you PLUS A THANKS, 5 STAR AND BRAINLIEST
The picture above shows the worked out solution. MAKE SURE CALCULATOR IS IN DEGREE MODE!
jaunice is redecorating her room. to cover a rectangular section of her wall, she needs at least 76.5 square feet of paint. the height of the wall is 8.5 feet. what is the minimum length of the wall?
Answer:
9 feet
Step-by-step explanation:
76.5/8.5 = 9