Step-by-step explanation:
[tex]cd + db = a \\ b(c + d) = a \\ \frac{b(c + a)}{a + b} \\ b = \frac{a}{c + d} [/tex]
Answer:
The other answer is correct
Step-by-step explanation:
Can someone do this for me please
Answer:
p=5/8
Step-by-step explanation:
you first have to work out the brackets
5p+7=3(4-p)
5p+7=12-3p
then you have to group the like terms
5p+3p=12-7
8p=5
8p/8=5/8
p=5/8
you can also live it as a decimal
I hope this helps
Answer: p = 5/8
Explanation:
⇒5p + 7 = 3(4 -p)
⇒5p + 7 = 12 - 3p
⇒5p + 3p = 12 - 7
⇒8p = 5
⇒p = 5/8
Must click thanks and mark brainliest
x²+10x+25resove into factors.
Answer:
(x + 5)(x + 5)
Step-by-step explanation:
[tex]x^2+10x+25\\(x+5)(x+5)[/tex]
Answer:
(x+5)(x+5)
Step-by-step explanation:
x²+10x+25
x²+5x+5x+25
x(x+5)+5(x+5)
(x+5)(x+5)
The floor of the restaurant is a square of sides 28m. The floor is covered with square tiles of sides 40m. Calculate the total number of tiles used.
Answer:
196000 tiles.
Step-by-step explanation:
The 28 m is 2800 cm. So a 28 x 28 meter square would be 2800 x 2800 centimeter square.
The tiles are 40 cm.
If you divide 40 from (2800 x 2800). (2800 x 2800) ÷40 = 196000
So 196000 tiles.
I'm not entirely sure if that's correct, but if it helps that's awesome.
If the ratio of the volume of a sphere to the surface area is 9cm, what is the diameter of the sphere?
Writing to Learn x- and y-intercepts
(a) Explain why c and d are the x-intercept and y-intercept,
respectively, of the line
y
1.
d
(b) How are the x-intercept and y-intercept related to c and d in
the line
+
y
+
= 22
с
d
The x and y intercepts of a line are when [tex]y=0[/tex] and [tex]x=0[/tex] respectively.
c and d are the x and y intercepts because they represent C/A and B/A in the standard linear equationThe x and the y intercepts are related to c and d because they represent the values of the equation when y and x equals 0 respectively.The given equation is:
[tex]\frac xc + \frac yd = 1[/tex]
(1) Why c and d are the intercepts
We have:
[tex]\frac xc + \frac yd = 1[/tex]
Multiply through by cd
[tex]cd \times \frac xc + cd \times \frac yd = cd \times1[/tex]
[tex]dx + cy = cd[/tex]
A linear equation is represented as:
[tex]Ax + By = C[/tex]
Where:
[tex]\frac CA \to[/tex] x intercept
[tex]\frac BA \to[/tex] y intercept
So, by comparing [tex]Ax + By = C[/tex] to [tex]dx + cy = cd[/tex]
[tex]\frac CA \to d \to[/tex] The x-intercept
[tex]\frac CB \to c \to[/tex] The y-intercept
(b) How the intercepts are related to c and d?
In (a) above, we have:
[tex]\frac CA \to d \to[/tex] The x-intercept
[tex]\frac CB \to c \to[/tex] The y-intercept
When [tex]x = 0[/tex]
We have:
[tex]dx + cy = cd[/tex]
[tex]d \times 0 + cy = cd[/tex]
[tex]cy = cd[/tex]
Divide by c
[tex]y = d[/tex] ---- the y-intercept
When [tex]y = 0[/tex]
We have:
[tex]dx + cy = cd[/tex]
[tex]dx + c \times 0 = cd[/tex]
[tex]dx = cd[/tex]
Divide by d
[tex]x =d[/tex] ---- the x-intercept
Read more about intercepts at:
https://brainly.com/question/13593488
what is the slope of the line? please help
Answer:
Here, we see that the slope (m) equals -1.
Step-by-step explanation:
m=Rise/Run
-2/2=-1
Hope it helps:)
If f(x) = x^2-1 which of the following ordered pairs would be on the graph of f(x)
These following ordered pairs are on the graph:
(0,1)(5, 24)(-2,3)-------------------------------
An ordered pair (x, f(x)) will be on the graph if replacing them into the equation, we get an equivalence.
-------------------------------
The equation is:
[tex]f(x) = x^2 - 1[/tex]
-------------------------------
(0,1)
Here, we test [tex]x = 0, f(x) = 1[/tex]
Replacing into the equation:
[tex]1 = 0^2 - 1[/tex]
[tex]1 = -1[/tex]
False, so not on the graph.
-------------------------------
(0,1)
Here, we test [tex]x = 1, f(x) = 0[/tex]
Replacing into the equation:
[tex]0 = 1^2 - 1[/tex]
[tex]0 = 0[/tex]
True, so on the graph.
-------------------------------
(3,5)
Here, we test [tex]x = 3, f(x) = 5[/tex]
Replacing into the equation:
[tex]5 = 3^2 - 1[/tex]
[tex]5 = 8[/tex]
False, so not on the graph.
-------------------------------
(5,24)
Here, we test [tex]x = 5, f(x) = 24[/tex]
Replacing into the equation:
[tex]24 = 5^2 - 1[/tex]
[tex]24 = 24[/tex]
True, so on the graph.
-------------------------------
(-2,3)
Here, we test [tex]x = -2, f(x) = 3[/tex]
Replacing into the equation:
[tex]3 = (-2)^2 - 1[/tex]
[tex]3 = 3[/tex]
True, so on the graph.
-------------------------------
(-4,-17)
Here, we test [tex]x = -4, f(x) = -17[/tex]
Replacing into the equation:
[tex]-17 = (-4)^2 - 1[/tex]
[tex]-17 = 15[/tex]
False, so not on the graph.
A similar question is given at https://brainly.com/question/2102317
if the cost of 5 dozen of copies is rupees 60 what is the cost of 33 such copies
Answer: Rs 33
Step-by-step explanation:
Cost of 5 dozen copies = Rs 60
Total copies in 5 dozen = 5×12
= 60
Cost of each copy = 60/60
= Rs 1 per copy
Cost of 33 copies = 33×1
= Rs 33
Therefore cost of 33 such copies is Rs 33
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find the surface area of each figure. Round to the nearest tenth if necessary.
Area of Rectangular prism = 2(wl+hl+hw)
Height = 9ft
Width = 11ft
Length = 12ft
Area = 2(11(12) + 9(12) + 9(11))
Area = 678ft²
Must click thanks and mark brainliest
Answer:
678 ft^2.
Step-by-step explanation:
The surface area consists of 3 pairs of congruent rectangle.
= 2(9*12 + 11*12 + 9*11)
= 2 * 339
= 678.
Please help explanation if possible
Answer:
(x,y) —> (–1 ,1)
I hope I helped you ^_^
find the area of parallelogram and round to the nearest tenth.
Answer:
A=b×h
A=13.8×6
A=82.8 in²
A≈83in²
Step-by-step explanation:
39. a(x + 3) < 5x + 15 - x
Answer:
x < [tex]\frac{15-3a}{a-4}[/tex]; a > 4
a < [tex]\frac{4x+15}{x+3}[/tex]
Step-by-step explanation:
ax+3a < 4x + 15
ax - 4x < 15 - 3a
x( a -4) < 15 - 3a
x < [tex]\frac{15-3a}{a-4}[/tex]
ax + 3a < 5x + 15 -x
ax + 3a < 4x + 15
a( x + 3) < 4x + 15
a < [tex]\frac{4x+15}{x+3}[/tex]
Answer:
x < (15 - 3a) / (a - 4). ( only true if a > 4)
a < (x + 15)/x
Step-by-step explanation:
a(x + 3) < 5x + 15 - x
ax + 3a < 5x + 15 - x
ax - 5x + x < 15 - 3a
ax - 4x < 15 - 3a
x(a - 4) < 15 - 3a
Dividing both sides by (a - 4):
x < (15 - 3a) / (a - 4)
a < (x + 15)/x
Quad DEFG with mZD= (12x - 4),
mZE = (18x + 4)ºmZF = (15x + 10), and
m2G= (5x)
What is the value of x?
Answer: x = 7°
Explanation:
We know that sum of angles of a quadilateral is = 360°
Therefore ATQ
⇒ (12x-4)+(18x+4)+(15x+10)+(5x) = 360
⇒ (12x + 18x + 15x + 5x) + (-4+4+10) = 360
⇒ 50x + 10 = 360
⇒ 50x = 360-10
⇒ 50x = 350
⇒ x = 350/50
⇒ x = 7
Therefore value of x is 7°
Must click thanks and mark brainliest
3.Find the area of Triangle and Parallelogram having base 13.5cm and height is 18cm.
[tex]\\ \sf\longmapsto Area=\dfrac{1}{2}Base\times Height[/tex]
[tex]\\ \sf\longmapsto Area=\dfrac{1}{2}(18)(13.5)[/tex]
[tex]\\ \sf\longmapsto Area=9(13.5)[/tex]
[tex]\\ \sf\longmapsto Area=121.5cm^2[/tex]
please answer this
simplify it too
Answer:
x^2 +3x
Step-by-step explanation:
The outer rectangle has an area of
A = l*w = (4x)*(x+2) = 4x^2 +8x
The inner rectangle has an area of
A = (3x+5)*x = 3x^2 +5x
Subtract the inner rectangle from the outer rectangle
Shaded area = 4x^2 +8x - ( 3x^2 +5x)
Distribute the minus sign
=4x^2 +8x - 3x^2 -5x
Combine like terms
= x^2 +3x
A Boy obtained 80 percent marks.If the full marks is 800,how much did he get?
9514 1404 393
Answer:
640 marks
Step-by-step explanation:
80% of 800 is ...
0.80 × 800 = 640
He got 640 marks.
Please what is the solution for the question above.......
Please I need it Urgently.
Also Please answer for me to gain points
Answer:
A
Step-by-step explanation:
simple interest (I) is calculated as
I = [tex]\frac{PRT}{100}[/tex]
P is the principal. R the rate of interest and T the time in years
Here P = 880000, R = 3.5 and T = 2.5 , then
I = [tex]\frac{880000(3.5)(2.5)}{100}[/tex]
= 8800 × 3.5 × 2.5
= 77000 → A
The temperature is 45°F The temperature will decrease by 2°F each hour. Let
h be the number of hours.
When will the temperature be below 32°F?
Write an inequality for this problem.
A. 45 + 25 = 32
B. 45 - 2.32
C. 45 + 25 32
D. 45 - 253
Help me with this plss
If x^2+1/x^2[tex]x^{2} +\frac{1}{x^2}=10; then x+\frac{1}{x}=?[/tex]
(x + 1/x)² = x ² + 2 + 1/x ² = 10 + 2 = 12
==> x + 1/x = ±√12
Question 12
What is the value of x in the following equation?
2/3x + 2 = 4
PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!!
You can visualize data sets using ______________.
A. dot charts
B. dotgrams
C. dot graphs
D. dot plots
Answer:
Adrenaline: A stress hormone produced within the adrenal gland that quickens the heart beat, strengthens the force of the heart's contraction, and opens up the bronchioles in the lungs, among other effects. The secretion of adrenaline is part of the human 'fight or flight' response to fear, panic, or perceived threat.
Step-by-step explanation:
Ngoài hình tròn thì Hình nào có vô số trục đối xứng
Answer:
Step-by-step explanation:
what
Answer:
that language is this
Step-by-step explanation:
Elizabeth is sketching a copy of the flag shown. The dimensions of the drawing are one-third those of the actual flag. If the area of the drawing is
40 square inches, what is the actual area of the
flag? 5 in. 8 in.
Answer:
360 in.
Step-by-step explanation:
In order to get this answer, you have to multiply 5 and 8 by 3 because the drawing is 1/3 of the actual flag.
5 x 3 = 15
8 x 3 = 24
So, 24 x 15 = 360 in.
Hope this helps! :)
Simplifying the equation below! Please help.
Answer:
that would be -11
Step-by-step explanation:
it is asking for the absolute value of -7-4 however absolute value is always positive once you solve that you have a negative symbol on the outside that turns ur answer negative
Answer:
- 3
Step-by-step explanation:
- | -7+4|
Determine inside the absolute value first
-7+4 = -3
Replace inside the absolute value
- |-3|
The absolute value means take the non negative value
|-3| =3
- 3
NEED HELP ASAP WILL MARK BRAINLIEST
Answer: answer one is hard to read Answer 2: 0.0020661157
Step-by-step explanation:
Answer:
1. 2.5% of 14000= 350
2. 27.5% of 1760= 484
Will give Brainly
Find the probability that a
randomly
selected point within the circle falls
in the red shaded area.
60°
60°
r= 4 cm
[? ]%
Round to the nearest tenth of a percent.
Answer:
mate....where is red shaded region....
probably this will help ..... ;)
find the probability that a randomly selected point within the circle falls in the red shaded area
https://brainly.com/question/14113463?utm_source=android&utm_medium=share&utm_campaign=question
4
Select the correct answer.
Simplify the expression. What classification describes the resulting polynomial?
(8x2 + 3x) – (12x2 - 1)
OA.
quadratic binomial
OB. quadratic trinomial
O C.
linear monomial
OD.
linear binomial
Reset
Reset
Next
Answer:
quadratic trinomial
Step-by-step explanation:
(8x^2 + 3x) – (12x^2 - 1)
Distribute the minus sign
8x^2+3x-12x^2+1
Combine like terms
-4x^2+3x+1
This is a quadratic since the highest power of x is 2
This is a trinomial since there are 3 terms
65000÷9330
400000÷9330
141200÷9330
800÷9330
Please give answers in smaller version and not how the calculator says
Step-by-step explanation:
1.answer is 6.9667738478
2 answer is 42.872454448
3answer is 14.1339764202
4answer is 0.0857449089.
CORRECT ANSWER WILL GET BRAINLIEST
ANSWER PLEASE
Answer:
B and C
Step-by-step explanation:
A is actually 5 so it is an integer and 0 is considered and integer.
I need help ASAP!!Please help me Find missing angle
Answer:
15.35888558
Step-by-step explanation:
is the answer
cos-¹(27/28)
Answer:
75 degrees
Step-by-step explanation:
law of sinus :
a/sin(A) = b/sin(B) = c/sin(C)
where the sides are always opposite to the used angles.
so,
28/sin(90) = 27/sin(angle)
28/1 = 28 = 27/sin(angle)
28×sin(angle) = 27
sin(angle) = 27/28 ≈ 0.96
angle ≈ 75 degrees