Answer:
Step-by-step explanation:
angle A = 40
angle B = 60
angle C = we don't know.
A + B + C = 180
C = 180 - A - B
C = 180 - 40 - 60
C = 80
40 + 60 + 80 = 180
180 = 180...It checks!
Six more than seven times a number is thirty-four. Give equation and find
number (variable).
Answer: 4
Step-by-step explanation:
7n + 6 = 34
6 - 6 = 0
34 - 6 = 28
7n = 28
7/7
28/7 = 4
(I really need help) FGHIJ ~ YUVWX. Find UY and GH.
Answer:
UY = 90
GH = 4
Step-by-step explanation:
Given that FGHIJ ~ YUVWX, therefore, their corresponding side lengths would be proportional to each other. Thus:
UY/GF = VW/HI
UY/10 = 63/7 (Substitution)
UY/10 = 9
UY = 10*9
UY = 90
In the same vein, we have:
VW/HI = UV/GH
63/7 = 36/GH (Substitution)
9 = 36/GH
GH*9 = 36
GH = 36/9
GH = 4
solve quadratic inequality x^2+4x≥0
Answer:
Step-by-step explanation:
y = x² + 4x is an up-opening parabola with x-intercepts 0 and -4.
y ≥ 0 when x≤-4 or x≥0
range: (-∞,-4)∪[0,+∞)
Solve the Equation. 14x+28=14
Answer:
x= -1
Step-by-step explanation:
1. First, you need to combine like terms. Constants with constants and variables with variables. Since there is only one variable, there is nothing to combine it with so nothing happens to it. The constants, on the other hand, can combine.
2. You have to subtract 28 from 28 and 14 so that +28 can cancel out on the left side and combine on the right.
3. That will leave you with 14x= -14.
4. Now you need to get x on its own so you need to divide 14 (opposite of multiplication to cancel out) on both sides.
5. That will leave you with x= -1. That is your final answer.
Hope this helps! Please vote me as Brainliest. Let me know if you need more of an explanation. Remember, cheating is never the answer. Try your best before you seek answers. Hope it's not too late. Good luck with whatever you are doing! Have an amazing day!
solve 2x-15≤5 please help
Answer:
x≤10
Step-by-step explanation:
2x-15≤5
+15 (both sides)
2x≤20
divided by 2 (both sides)
x≤10
Answer:
x ≤ 10
Step-by-step explanation:
2x-15≤5
+15≤+15
---------------------
2x ≤ 20
2x ≤ 2x
--------------------
x ≤ 10
Question 12
Which of the following relations is NOT a function?
A
{(2, 1), (5, 7), (2, 4), (1, 9)}
B
{(2,5), (3,5), (-2, 1), (5, 2)}
с
{(-1,3), (5,7), (1, 4), (9, 2)}
D
{(-2, 4), (3, 6), (2, 3), (4, -2)}
Answer:
A, because for every x value there can only be exactly one y value. Since 2 pairs with 1 and 4, the relation is not a function.
Step-by-step explanation:
Help plzz! True or False?
-15 is a solution for -8x = 125
Answer:
false, it doesn't equal 125
If CN = 8 centimeters, find DN help please
DN=CN=8cm if N is a centre.since radii are equal in circle.
Please helppp, I'm using all my points!! Line A passes through the points (-3,-4) and (-6,-5). Write the equation of the image of A after a dilation with a scale factor of 2. Write your in answer in slope-intercept form.
y=
Answer:
The equation of the image of A after a dilation with a scale factor of 2 will be:
[tex]y\:=\:\frac{1}{3}x\:-6[/tex]Step-by-step explanation:
Some background Knowledge about dilation.
We know that when an object is dilated by a scale factor, it gets reduced, stretched, or remains the same, depending upon the value of the scale factor.
If the scale factor > 1, the image is enlargedIf the scale factor is between 0 and 1, it gets shrunkIf the scale factor = 1, the object and the image are congruentRule to calculate the dilation by a scale factor 2 centered at the origin
P(x, y) → P'(2x, 2y)
Here, P'(2x, 2y) is the image of P(x, y).
It means the coordinates of the image can be determined by multiplying the coordinates of the original point by 2.Now, let us solve our case:
Given the points
(-3, -4)(-6, -5)Let say the points are X(-3, -4) and Y(-6, -5)
Rule to calculate the dilation by a scale factor 2 centered at the origin
P(x, y) → P'(2x, 2y)
so
X(-3, -4) → X' (2(-3), 2(-4)) → X'(-6, -8)
Y(-6, -5) → Y' (2(-6), 2(-5)) → Y'(-12, -10)
Thus, after the dilation scale of factor 2, now the image line will through the points X'(-6, -8) and Y'(-12, -10)
so we have the points of the image line
X'(-6, -8)Y'(-12, -10)Determining the slope between X'(-6, -8) and Y'(-12, -10)
[tex]\left(x_1,\:y_1\right)=\left(-6,\:-8\right),\:\left(x_2,\:y_2\right)=\left(-12,\:-10\right)[/tex]
[tex]m=\frac{-10-\left(-8\right)}{-12-\left(-6\right)}[/tex]
[tex]m=\frac{1}{3}[/tex]
The slope-intercept form of the line equation
y = mx+b
where
m is the slopeb is the y-interceptnow substituting m = 1/3 and (-6, -8) in the slope-intercept form of the line equation
[tex]y = mx + b[/tex]
[tex]-8\:=\:\frac{1}{3}\left(-6\right)\:+\:b[/tex]
[tex]-2+b=-8[/tex]
Add 3 to both sides
[tex]-2+b+2=-8+2[/tex]
Simplify
[tex]b=-6[/tex]
now substituting b = -6 and m = 1/3 in the slope-intercept form of line equation
[tex]y = mx + b[/tex]
[tex]y\:=\:\frac{1}{3}x\:+\:\left(-6\right)[/tex]
[tex]y\:=\:\frac{1}{3}x\:-6[/tex]
Therefore, the equation of the image of A after a dilation with a scale factor of 2 will be:
[tex]y\:=\:\frac{1}{3}x\:-6[/tex]P Josh wants to determine the number of loaves of bread he can bake using the 13 and one-third cups of flour he has. If each loaf requires 3 and four-fifths cups of flour, how many loaves can Josh bake?
3 loaves of bread
4 loaves of bread
50 loaves of bread
51 loaves of bread
Answer:
the 13 and one-third cups of flour he has. If each loaf requires 3 and four-fifths cups of flour, how many loaves can Josh bake?
3 loaves of bread
4 loaves of bread
50 loaves of bread
51 loaves of bread
Step-by-step explanation:
A rectangle is 30 inches long. The diagonal is 50 inches how wide is the rectangle?
The answer is 1,500. You have to multiply 30 and 50.
Answer:
40
Step-by-step explanation: A rectangle is a quadralaterial with 4 90 degree angles made up of two diagonals. If we draw one diagonal, it would split the rectangles into two right triangles. Since a rectangle has a right angle, we can use pythagorean theorem to solve the missing side.
[tex]a^{2} +b^{2} =c^{2}[/tex] where a and b are the length and widith and c is the diagonal length. Let plug it in
[tex]30^{2} +b^{2} =50^{2}[/tex]
900+[tex]b^{2}[/tex]=2500
[tex]b^{2} =1600[/tex]
[tex]\sqrt{1600 =[/tex]40
b=40
Evaluate the expression: (10) -3x (-2) +5
Answer:
-3x(-2)+15
Step-by-step explanation:
add the numbers
How many solutions does the equation -2x + 12 = x2 + 16 have?
A)0 real solutions
B) 1 real solution
C) 2 real solutions
D) infinitely many real solutions
Answer:
A) 0 real solutions
Step-by-step explanation:
-2x +12 = x² +16
change side ;
x²+2x+16-12 = 0
x²+2x+4 = 0
(x+2)(x+2) = 0
x = -2
substitution x= -2
; -2(-2) + 12 = (-2)² + 16
4+12 = 4+16
16 = 20
False equation = 0 real solutions
hope it helps ☺️
3. Find the slope and the y-intercept of the graph of the linear equation.
y = 2x + 9
A) slope: 9; y-intercept: 2
B) slope: 5; y-intercept: 2
C) slope: 3; y-intercept: 9
D) slope: 2; y-intercept: 9
Samantha lost 15 pounds in 6 weeks.
Indicate if the triangles are congruent. Justify your answer with the rule
that applies.
in figure qr = 1/3pr. find pq
Answer:
PQ = 3.2
Step-by-step explanation:
[tex] QR =\frac{1}{3} PR[/tex]
[tex] QR =\frac{1}{3} \times 4.8 [/tex]
[tex] QR =1.6 [/tex]
PQ = PR - QR
PQ = 4.8 - 1.6
PQ = 3.2
Translate (4,3) to the left 3 units. Then reflect the result over the y-axis. What are the coordinates of the final point?
I will mark brainalist plzzz
3
Which two equations represent the following statement?
28 is 12 less than k.
A
28 = K - 12
B
<
28 = 12 +K
с
K-12 = 28
D28 - k = 12
Please help answer. Thanks :)
Answer:
(x,y) <-> (x-8, y-8)
Step-by-step explanation:
Take note of where each point is:
A -> (3,6)
B -> (2,1)
C -> (8,2)
A' -> (-5,-2)
B' -> (-6,-7)
C' -> (0,-6)
Since the figures are congruent to each other, all the points follow the same translation rules. For example, to get from A to A', the distance from 3 to -5 is 8 to the left, and the distance from 6 to -2 is also 8 but down. So the translation rule would be (x,y) <-> (x-8, y-8)
The distance between two towns on a map is 9 centimeters. The actual distance between
two towns is 63 kilometers. What is the scale on the map?
OA) 1 cm: 6 km
OB) 1 cm: 7 km
O C) 1 cm: 8 km
OD 1 cm : 9 km
Answer: OB) 1cm: 7km
63/9=7
Step-by-step explanation:
Answer:
7KM
Step-by-step explanation:
(15 Points) Hey yall. Can you please help me with this problem?
Answer:
y [tex]\geq[/tex] 3x + 3
y < -x - 2
Step-by-step explanation:
For the first one, you can see that the slope is 3 and the y-intercept is 3, so the equation of the line would be y = 3x + 3. Then, since the shaded area is above the line it would be greater than and since the line isn't dashed it is greater than or equal to.
The completed equation is y [tex]\geq[/tex] 3x + 3
For the second one, you can see that the slope is -1 and the y intercept is -2, so the equation of the line would be y = -x - 2. Then, since the shaded area is below the line and the line is dashed, the completed equation is y < -x -2
Put these fractions in order of size, smallest to largest.
3/5
5/6
1/3
Answer:
1/3, 3/5, 5/6
Step-by-step explanation:
Help hurry and thank u if u do
Answer: Jim raised %8.3
Step-by-step explanation: Well the total amount raised was $120 dollars, Jim raised $10 of that $120. Therefore jim raised %8.3 percent of the earned income.
Find the slope of the line that contains (3,6) and (6, 9).
Answer:
1
Step-by-step explanation:
Use the formula: y2 - y1/x2 - x1
9 - 6 = 3
6 - 3 = 3
Slope = 1
-6 1/3 -6.375 which one is greater
Answer:
-6 1/3 is greater
Step-by-step explanation:
-6 1/3 = -6.3333333333
-6.375 = -6.375
Step-by-step explanation:
-6 1/3=-20.3333..
-6.375
So -6.375 is greater than -6 1/3
hope it helps you
have a nice day
4x + 7x2 + 6y + 12
What is the standard form
Answer:
4x+6y+26
Step-by-step explanation:
Can I get help on C plz
Answer:
the answer would be 6...
Need help ASAP
Will make you brainlist
Can someone help me graph it and to tell me where to put it?
Answer:
the vertical line (y) has positive and negative numbers, those are your y-intercepts, make a dot on -1 on that line
from the dot that you plotted you have to go down 5 so you will be at -6 and then you will go right 4 times so your coordinate will be (4,-6)
Step-by-step explanation:
