Answers
Answer:
x²+4x+4x+16
x(X+4)+4(X+4)
(x+4)(X+4)=0
x=(-4)Answer:
x = - 4
Step-by-step explanation:
= − ± 2 − 4 / 2
Once in standard form, identify a, b and c from the original equation and plug them into the quadratic formula.
x2+8x+16=0
= 1
= 8
= 1 6
x= − 8 ± 8 ^2 − 4× 1 × 1 6 / 2× 1
= − 8 ± 64 − 4× 1 ×1 6 / 2× 1
= − 8± 6 4 − 6 4 / 2× 1
x = -8 / 2× 1
x = -8 / 2
x = -4
Hope this answer helps you :)
Have a great day
Mark brainliest
Related Questions
Find the value of y
Answers
Answer:
64-degree ( Alternate angles)
Answer:
y = 64 degree
Step-by-step explanation:
angle y = 64 degree (being alternate interior angles)
y° = 64°
A clothing store purchases T-shirts for
$4.00 each and then marks up the price
of each by 55%. What is the markup and
new price of each T-shirt?
Answers
Answer:
The mark up is $2.20 and the new price of each T-shirt is $6.20.
Step-by-step explanation:
Before we find the new price of each T-shirt we must find the markup (by how much were raising the price).
The problem states each T-shirt costs $4.00, but then marks up the price of each by 55%.
Step 1 would be to find 55% of $4.00.
0.55 * 4 = 2.2
So that is the mark up, the price is going up by $2.20. To find the new price of each T-shirt, you take that $2.20 and add it to the original $4.00.
$4.00 + $2.20 = $6.20
So the mark up is $2.20 and the new price of each T-shirt is $6.20.
2x + (-x) + 5 + (-5) =
Answers
Answer:
X
Step-by-step explanation:
2x-x=x
5-5=0
Answer:
[tex]2x + (-x) + 5 + (-5) = x[/tex]
Step-by-step explanation :
Remove Parenthesis :
[tex]2x - x + 5 - 5[/tex]
Add similar elements :
[tex]x + 5 - 5[/tex]
Add them up :
[tex]5 - 5 - 0 = x[/tex]
three dimensions
A Pentagon has
A. zero measurements
b. two measurement's
c. three measurements
d. one measurements
Answers
Answer:
one measurement
Step-by-step explanation:
hope it's helpful for you ☺️
Charles is cooking enough lentils for lentil barley soup and lentil salad. The soup recipe calls for 3/4 cup of dried lentils. The salad recipe calls for 1 1/ 2 cups of dried lentils. Jon has a 1/8 -cup scoop. How many scoops of dried lentils will Charles need to have enough for the soup and the salad?
Answers
Answer:
18 scoops is the correct answer
Step-by-step explanation:
3/4 can also be written as 6/8 (multiply both 3 and 4 by 2)
and 1 1/2 is actually 3/2 which can be written as 12/8 (multiply both 3 and 2 by 4)
thus total lentils required is 6/8 + 12/8 = 18/8 cups.
with scoop size 1/8 cup you'll need 18 scoops .
Answer:
18 1/8 scoops
Step-by-step explanation:
Soup:
6 scoops from a 1/8 cup can make a 3/4 cup
Salad:
4 scoops from a 1/8 cup can make a 1/2 cup
If 1/8 means one portion is divided into eight portions, then 8 scoops from a 1/8 cup can make 1 cup.
If c+di is a point on the circle, then
|c + dil=
Answers
HELP PLEASE
Find 33/4 x 21/3. All answers must be in lowest terms
Answers
[tex] \frac{231}{4} [/tex] ✅
Step-by-step explanation:
[tex] \frac{33}{4} \times \frac{21}{3} \\ = \frac{11 \times 21}{4} \\ = \frac{231}{4} [/tex]
Note:-
A fraction is said to be written in its lowest form if its numerator and denominator are prime, that is, they have no common factors other than 1.[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]
A tire has a radius of 20 inches. What is the Circumference of the tire?
Answers
Answer:
Step-by-step explanation:
circumference=2πr
=2*3.14*20
=125.6 inches
The circumference of the tire is 125.6 inches.
We have given that,
A tire has a radius of 20 inches.
We have to determine the circumference of the circle
What is the formula for the circumference of the circle?
C=2πr
C=circumference
r=radius of the circle
Use this value in the circumference of the circle
Therefore we get,
=2*3.14*20
=125.6 inches
Therefore the circumference of the tire is 125.6 inches.
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Try answer the following:
-299= -3×n+1
n=
Answers
Answer:
[tex]n = 100[/tex]
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable
What is the mean, Median, Mode and Range of 8, 10, 3, 9, 12, 4, and 3
Answers
median - 8
range - 8
mode - 3
Refer to pictures above real help please
Answers
Answer:
38.7°
Step-by-step explanation:
∆ = Tan-1(opposite/ Adjacent)
=Tan-1(8/10)
= 38.66°
= 38.7° to n nearest tenth
Which type of graph would be best for showing the height of a sapling tree over the span of several weeks?
A. a bar graph
B. a circle graph
C. a histogram
D. a line graph
Answers
Answer:
its actually d
Step-by-step explanation:
it compares height to time
if a 30 foot wire is attached to the top of a 12 foot pole and stretched to the ground, find the angle the wire makes with the ground
Answers
Answer:
52 degrees
Step-by-step explanation:
Answer:
52 degrees sorry if that's wrong
What is the general form of the equation for the given circle?
Answers
Answer:
a circule
Step-by-step explanation:
f(x)=(41)x
Exponential growth or Exponential decay
Answers
Answer:
growth
Step-by-step explanation:
cosy/1-siny = 1+siny/cosy
varify using trig identity.
Answers
Answer:
See Below.
Step-by-step explanation:
We want to verify the equation:
[tex]\displaystyle \frac{\cos y}{1-\sin y}=\frac{1+\sin y}{\cos y}[/tex]
On the left, we can multiply both layers by (1 + sin(y)):
[tex]\displaystyle \frac{\cos y}{1-\sin y}\left(\frac{1+\sin y}{1+\sin y}\right)=\frac{1+\sin y}{\cos y}[/tex]
Multiply:
[tex]\displaystyle \frac{\cos y(1+\sin y)}{1-\sin^2 y}=\frac{1+\sin y}{\cos y}[/tex]
From the Pythagorean Theorem, we know that sin²(y) + cos²(y) = 1. Hence, 1 - sin²(y) = cos²(y). Substitute:
[tex]\displaystyle \frac{\cos y(1+\sin y))}{\cos^2 y}=\frac{1+\sin y}{\cos y}[/tex]
Cancel:
[tex]\displaystyle \frac{1+\sin y}{\cos y}=\frac{1+\sin y}{\cos y}[/tex]
Hence proven.
khan academy, law of sines
Answers
Answer:
m∠B = 76°
Step-by-step explanation:
[tex]\frac{sinB}{b}=\frac{sinC}{c}\\\\sinB=\frac{sinC}{c}(b)\\\\B=sin^{-1}(\frac{sin(29)}{9}(18))\\\\B=75.8=76[/tex]
Therefore, m∠B = 76°.
2 QUESTIONS
You don't need to answer both of them, but please include answer + explanation for at least one of them
Answers
Answer:
bh + L(S1 + S2 + h)
Step-by-step explanation:
b stands for the bottom edge of the base triangle
h is the height of the base triangle
L is the length of the prism
S1 and S2 are the two edges of the base triangle
bh is the combined area of the two triangular faces
L(S1 + S2 + h) is the area of the three rectangular side faces
please help :)
I hope that I can get helped
Answers
Answer:
a = 8,059.52 m²
Step-by-step explanation:
Area of square
a = s²
a = 56²
a = 3,136
--------------------
Area of circle
a = πr²
a = 3.14(56/2)²
a = 2,461.76
Area of 4 semicircles = area of 2 circles
a = 2,461.76 * 2
a = 4,923.52
-----------------------
Total area
a = 3,136 + 4,923.52
a = 8,059.52 m²
Please someone help me please
Answers
Answer:
x = 21.46
Step-by-step explanation:
[tex]cos 56 = \frac{adjacent}{hypotenuse} = \frac{12}{x}\\\\x = \frac{12}{cos 56} = 21.46[/tex]
Answer:
Step-by-step explanation:
take 56 degree as reference angle
using cos rule
cos 56=adjacent/hypotenuse
0.55=12/x
x=12/0.55
x=21.81
x=21.8
What does the transformation f(x) --> -f(x) do to the graph of f(x)
Answers
Answer: D) Reflect over x-axis
=======================================================
Explanation:
When we do this type of reflection, a point like (1,2) moves to (1,-2).
As another example, something like (5,-7) moves to (5,7)
The x coordinate stays the same but the y coordinate flips in sign from positive to negative, or vice versa.
We can say that [tex](x,y) \to (x,-y)[/tex] as a general way to represent the transformation. Note how y = f(x), so when we make f(x) negative, then we're really making y negative.
If we apply this transformation to every point on f(x), then it will flip the f(x) curve over the horizontal x axis.
There's an example below in the graph. The point A(2,8) moves to B(2,-8) after applying that reflection rule.
4ab (a -b) + b (2b -2a²) for a = 1 and b= -1
simplify it
Answers
Answer:
Step-by-step explanation:
4ab(a-b)+b(2b-2a^2)
=4*1*-1[1-(-1)]+(-1){2(-1)-2*1^2}
=-4(1+1)-1{-2-2}
=-4*2-1(-4)
=-8+4
=-4
Answer:
by my calculations the answer is 10
Step-by-step explanation:
4×1(1-1)+1(2×1-4)
4+1(2-4)
5×2
10
can someone help me?
(2x+8)(2x+2)
Answers
[tex] 4 {x}^{2} + 20x + 16[/tex]
Step-by-step explanation:
[tex](2x + 8)(2x + 2) \\ = 2x(2x + 2) + 8(2x + 2) \\ = 4 {x}^{2} + 4x + 16x + 16 \\ = 4 {x}^{2} + 20x + 16[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]
4x=3y+23
4y+3x=-19
solve by substitution. No files pls
Answers
Answer:
x = ⁷/₅
y = ⁻²⁹/₅
Step-by-step explanation:
4x = 3y + 23 (×3)
12x = 9y + 69
4y + 3x = -19
3x = -4y - 19 (×4)
12x = -16y - 76
∴ 9y + 69 = -16y - 76
25y = -145
y = ⁻²⁹/₅
12x = 9(⁻²⁹/₅) + 69
12x = 69 - ²⁶¹/₅
12x = ⁸⁴/₅
x = ⁷/₅
Please help!!!!!!! 50 points!!!!!
The figure is made up of a cylinder and 2 cones. What is the volume of the composite figure? Use 3.14 for Pi. Round to the nearest hundredth.
A cylinder and 2 cones. All have a radius of 2 millimeters. The cones have heights of 4 millimeters and 2 millimeters, and the cylinder has a height of 5 millimeters.
Recall the formulas V = B h and V = one-third B h
millimeters cubed
Answers
Answer:
96.29 mm^3
Step-by-step explanation:
Cylinder
V = pi r^2 h
V = 3.14 ( 2)^2 ( 5)
V = 3.14 *4*5
V =62.8 mm^3
Cone
V = 1/3 pi r^2 h
V = 1/3 (3.14) 2^2 ( 4)
V =1/3 (3.14) 4*4
V =16.746666666 mm^3
There are 2 cones so multiply by 2
Both cones = 33.493333333333 mm ^3
Add the cones and the cylinder together
62.8+33.493333333 =96.293333333
Rounding to the nearest hundredth
96.29 mm^3
Which of the following is a solution to the system of nonlinear equations
below?
A. (0,0)
B. (3,0)
C. (3,0)
D. (0,3)
Answers
what is meant ratation of the earth and draw
Answers
Answer:
Earth's Rotation
Earth spins around its axis, just as a top spins around its spindle. This spinning movement is called Earth's rotation. At the same time that the Earth spins on its axis, it also orbits, or revolves around the Sun. This movement is called revolution.
Solve the following equation for x: 2x^2 - 3 = 47
With explanation plz ion wanna go summer school
Answers
Answer:
Step-by-step explanation:
2x²-3=47
2x²=47+3
x²=50/2=25
x=±√25=±5
Answer:
x = ±5
Step-by-step explanation:
2x^2 - 3 = 47
Add 3 to each side
2x^2 - 3+3 = 47+3
2x^2 = 50
Divide each side by 2
2x^2 = 50/2
x^2 = 25
Take the square root of each side
sqrt(x^2) = sqrt(25)
x = ±5
You burn a log on a fire. You use the fire to warm yourself and to light up the
room to read a book. Which energy transformation is taking place?
O A. Thermal energy is transformed to light energy and chemical
energy
B. Chemical energy is transformed to nuclear energy and thermal
energy
C. Nuclear energy is transformed to potential energy and thermal
energy.
D. Chemical energy is transformed to light energy and thermal
energy.
Answers
: D. Chemical energy is transformed to light and thermal energy
The dimensions of the tank are 50 cm by 32 cm by 20 cm. The tank is full of water and sand. The ratio of the volume of water to the volume of sand is 5 : 1 Work out the number of litres of water in the tank.
Answers
The tank contains approximately 26.67 liters of water.
Use the concept of ratio defined as:
A ratio indicates how many times one number contains another number. The ratio of two numbers is written as x: y, which is equivalent to x/y.
Where x and y are individual amounts of two quantities.
And, the Total quantity is given after combining as x + y.
Given that,
Dimensions of the tank: 50 cm by 32 cm by 20 cm
The ratio of water to sand: 5: 1
The volume of the tank: 32,000 cm³
Calculate the volume of the tank first:
Since the ratio of water to sand is 5:1,
Calculate the volume of water.
Assign the variable "x" to represent the volume of water.
According to the ratio,
The volume of sand would be 1/5th of the volume of water,
So the volume of sand would be (1/5)x.
Since the tank is full,
The combined volume of water and sand is equal to the volume of the tank.
Therefore, we have the equation
x + (1/5)x = 32,000 cm³.
Simplifying the equation,
we get (6/5)x = 32,000 cm³.
To find the volume of water (x),
Solve for x by multiplying both sides of the equation by (5/6):
x = (32,000 cm³)(5/6).
Calculating this, we get the volume of water as 26,666.67 cm³.
Now, to convert this to liters,
Divide by 1000:
26,666.67 cm³ ÷ 1000 = 26.67 liters.
Hence, there are approximately 26.67 liters of water in the tank.
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