Answer:
x = 1, x = 19
Step-by-step explanation:
Given
2x² - 20x = x² - 19 ( subtract x² - 19 from both sides )
x² - 20x + 19 = 0 ← in standard form
(x - 1)(x - 19) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 1 = 0 ⇒ x = 1
x - 19 = 0 ⇒ x = 19
A building is 456 feet tall and 95 feet wide. If a scale model of the building is 12 inches tall, what
is the width of the scale drawing?
A.
3.1
B.
2.8
C.
2.5
D.
2.1
B
Ob
D
C С
od
4
Answer:
I think the answer is C
Step-by-step explanation:
456÷12= 38
95÷38= 2.447 (about 2.5)
PLZ HELP!!!
A Circle has a radius of 6x9y5 Cm.
What is the domain of this relation? (4, 14) (1, –7) (4, 7) (1, 14)
Answer:
4, 1, 4, and 1
Step-by-step explanation:
when a problem asks for the domain, it's basically asking for the x coordiantes (range = y coordinates)
Which set of letters puts the mixed numbers in order from greatest to least?
Answer:
D
PLZ MARK AS BRAINLIEST
I'm not sure how to factor this
Find RSQ and TSQ I will Brainliest
Answer:
Hey there!
15x-43+8x+18=90
23x-25=90
23x=115
x=5
RSQ=15(5)-43, or 32
TSQ=8x+18, or 58
Let me know if this helps :)
Step-by-step explanation:
Someone help please
vera está usando su teléfono. Su batería está a 2/5 de capacidad, y esta baja 1/9 cada hora. ¿Cuántas horas durará la batería?
Answer:
3.6 hours
Step-by-step explanation:
The computation of the number of hours will the battery last is given below:
Given that
The capacity of her battery is 2 by 5
And, it declines 1 by 9 for every hour
So,
[tex]= \frac{2}{5}\times \frac{9}{1}\\\\= \frac{18}{5}\\\\= 3\frac{3}{5}[/tex]
= 3.6 hours
Simplify 3f-2f+f I need a answer for that please
Answer:
2f
Step-by-step explanation:
3f-2f+f | Given
1f + f | Subtract 3f and 2f
2f | Add 1f and 1f.
Use the equation below to find the axis of symmetry in the given problem
Solve for x. Assume that lines which appear to be tangent are tangent.
3x + 3
4x - 3
Look at the image and please help.
Maggie goes to two different stores to shop for t-shirts. Both stores are having a sale.
At Store A, t-shirts are regularly priced at $22 but are on sale for 25% off.
At Store B, t-shirts are regularly priced at $30 but are on sale for 45% off.
Which of the following is true about the sale price of a t-shirt at the two stores?
A. Store B has the better price because 45% is greater than 25%.
B. Store A has the better price because $22 is less than $30.
C. The sale price is the same for both stores.
D. The sale price cannot be determined.
Answer:
store B
Step-by-step explanation:
Find the value of n that makes equation true.
5n =20
n + 5 = 10
2n = 3
n + 5 = 13
Answer:
5(4) = 20
5 + 5 = 10
2(1.5) = 3
8 + 5 = 13
Step-by-step explanation:
The choir group is going to a concert and will use 8 vans. There are 23 boys and 25 girls. How many students will fit in each van?
Answer:
6
Step-by-step explanation:
23+25=48
48÷8=6
write the equation of the line that passes through the given point and has the given slope.
(4,2) slope=3
please help with this question!!!
Answer:
bro i cant even read the highlighted numbers
Step-by-step explanation:
take a better photo
ASAP WHO EVER ANSWER THESE WILL BE MARKED BRANLIEST
Answer:
i dont know honestly
Step-by-step explanation:
Select the correct answer.
Tom goes to London for a week. His entire trip costs him £2,000. how many dollars did he spend on this trip if £1 = $1.41?
Answer:
$2,820
Step-by-step explanation:
Since, £1 = $1.41
Therefore, £2,000 = 2000*1.41 = $2,820
I know that this is simple algebra but I am asking for your help step by please will mark brainliest for who gets this right.
Answer: Y= -9 + 3x/2
Step-by-step explanation: Down below Have a brilliant day-Lily ^_^
Write the slope-intercept form of the equation of the line.
slope = -10, y-intercept = 5
Write the slope-intercept form of the equation of the line.
through: (-5,-1), slope = 2/5
Write the slope-intercept form of the equation of the line.
through: (5,0) and (-5,2)
Write the slope-intercept form of the equation of the line.
through: (-5,0), parallel to y = -x + 2
1
Write the slope-intercept form of the equation of the line.
through: (4,1), perpendicular to y = -2x + 5
Answer:
y = -10x + 5 and y = 2/5x + 1
Step-by-step explanation:
slope-intercept form is y = mx + b, where m = slope and b = y-intercept.
for your first problem, just plug in the m and b values to complete the equation.
1.) y = mx + b ⇒ y = -10x + 5
plug in -10 for x (slope) and 5 for b (y-intercept)
and for the second problem...
since you're given a value for slope as well as a coordinate pair, all you need to do is plug those values into the equation for their respective variables and then solve for b. (it doesn't matter what order you plug values in, but i'm going to fill them in in the order of the equation; y, m, and x)
1.) plug in -1 for y
y = mx + b ⇒ -1 = mx + b
2.) plug in 2/5 for m
-1 = mx + b ⇒ -1 = 2/5x + b
3.) plug in -5 for x
-1 = 2/5x + b ⇒ -1 = 2/5(-5) + b
now it's time to solve for b! start by multiplying 2/5 and -5.
-1 = 2/5(-5) + b ⇒ -1 = -2 + b
add 2 to both sides of the equation. on the right side, it cancels itself out. on the left side, adding 2 to -1 gives you 1.
and you're left with 1 = b! :)
therefore, y = 2/5x + 1
i hope this helps! have a great day <3
If NML ~ SRL find the value of x.
Answer:
x = 5
Step-by-step explanation:
Since the triangles are similar, corrresponding sides are in proportion.
[tex]\frac{NM}{SR} = \frac{ML}{RL} = \frac{NL}{SL}[/tex]
Using the equation formed by the second and third fraction above we get
[tex]\frac{28}{24} = \frac{3x - 1}{x + 7}[/tex]
28(x + 7) = 24(3x - 1)
28x + 196 = 72x - 24
44x = 220
x = 5
I'm asking this question again! Please answer correctly, nonsense will be reported!
PLEASE HELP!!
Solve the inequality:
2x – 3 < x + 2 < 3x + 5
Show your work.
Answer:
2x-3<x+2<3x+5
2x-3<x+2 or 2x-x<2+3 or x<5
x+2=3x+5 or x-3x<5-2 or 2x<3
Step-by-step explanation:
plz brainless
Complete this statement using >,<, or =
- 12
-41
Answer:
>
Step-by-step explanation:
-12 is closer to 0 than -41 would be therefore -12>-41.
Answer:
>
Step-by-step explanation:
Looking at a number line, -41 is farther from 0 than -12.
See the image below.
The farther left a number is on a number line, the smaller it is.
The farther right a number is on the number line, the larger is it.
So:
-12 > -41
Kent can paint a room in twice as fast as Luannda. Together they can paint the room in 5 hours. How long would it take Kent to paint the room alone? Write an equation to solve
Answer:
for kent it would be [tex]\frac{1}{5}[/tex]
Step-by-step explanation:
The computation is shown below:
Let us assume Luannda be [tex]\frac{x}{1}[/tex]
And for kent be 2x
Together they take 5 hours
So
[tex]\frac{x}{1} + \frac{2x}{1} = 5\ hours\\\\3x = 5\\\\x = \frac{5}{3}[/tex]
So for kent it would be [tex]\frac{1}{5}[/tex]
what is the sum
-5.7+ (-4.2)=
please answer
Answer:
-5.7-4.2=-9.9 is answer
FREE BRAINLIEST IF YOU ANSWER CORRECTLY!!(jwo26)
Answer:
56 dude
Step-by-step explanation:
Answer:
56!!!!!!
Step-by-step explanation:
Describe the end behavior of the following exponential function.
f(x)=3^x
A. As the x-values increase, the function increases towards negative infinity
B. As the x-values increase, the function increases towards y=3.
C. As the x-values increase, the function increases towards positive infinity.
D. As the x values increase, the function increases towards y=2.
Answer:
C. As the x-values increase, the function increases towards positive infinity.
Step-by-step explanation:
Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form.
4, 9, 14....
Answer:
The sequence is geometric
The common ratio is 0.5
Step-by-step explanation:
In the arithmetic sequence, there is a common difference between each two consecutive terms
In the geometric sequence, there is a common ratio between each two consecutive terms
Let us check the given sequence
The first 3 terms are 12, 6, 3
6 - 12 = -6
3 - 6 = -3
There is no common difference between the consecutive terms
The sequence is not an arithmetic sequence
6 ÷ 12 = 0.5
3 ÷ 6 = 0.5
There is a common ratio between each two consecutive terms
The sequence is a geometric sequence
The common ratio is 0.5
Answer:
An arithmetic
Common difference
-5
Step-by-step explanation:
In ΔHIJ, the measure of ∠J=90°, HI = 8 feet, and JH = 1.9 feet. Find the measure of ∠H to the nearest tenth of a degree.
Answer:
21.9°
Step-by-step explanation:
In ΔHIJ, the measure of ∠J=90°, HI = 8 feet, and JH = 1.9 feet. Find the measure of ∠H to the nearest tenth of a degree.
We solve this above question using the Sine rule
a/sin A = b/sin B
In ΔHIJ, the measure of ∠J=90°, HI = 8 feet, and JH = 1.9 feet.
Hence:
HI/∠J = JH/∠H
= 8/sin 90° = 1.9/sin ∠H
Cross Multiply
∠H = arc sin(sin 1.9 × 90/8)
∠H = 21.9°