Answers
Answer:
[tex] x = \dfrac{2}{5} + \dfrac{\sqrt{14}}{5} [/tex] or [tex] x = \dfrac{2}{5} - \dfrac{\sqrt{14}}{5} [/tex]
Step-by-step explanation:
[tex] 5x^2 - 2 = 4x [/tex]
[tex] 5x^2 - 4x - 2 = 0 [/tex]
[tex] x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a} [/tex]
[tex] x = \dfrac{-(-4) \pm \sqrt{(-4)^2 - 4(5)(-2)}}{2(5)} [/tex]
[tex] x = \dfrac{4 \pm \sqrt{16 + 40}}{10} [/tex]
[tex] x = \dfrac{4 \pm 2\sqrt{14}}{10} [/tex]
[tex] x = \dfrac{2 \pm \sqrt{14}}{5} [/tex]
[tex] x = \dfrac{2}{5} + \dfrac{\sqrt{14}}{5} [/tex] or [tex] x = \dfrac{2}{5} - \dfrac{\sqrt{14}}{5} [/tex]
Answer:
Answer:
x = \dfrac{2}{5} + \dfrac{\sqrt{14}}{5}x=
5
2
+
5
14
or x = \dfrac{2}{5} - \dfrac{\sqrt{14}}{5}x=
5
2
−
5
14
Step-by-step explanation:
5x^2 - 2 = 4x5x
2
−2=4x
5x^2 - 4x - 2 = 05x
2
−4x−2=0
x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}x=
2a
−b±
b
2
−4ac
x = \dfrac{-(-4) \pm \sqrt{(-4)^2 - 4(5)(-2)}}{2(5)}x=
2(5)
−(−4)±
(−4)
2
−4(5)(−2)
x = \dfrac{4 \pm \sqrt{16 + 40}}{10}x=
10
4±
16+40
x = \dfrac{4 \pm 2\sqrt{14}}{10}x=
10
4±2
14
x = \dfrac{2 \pm \sqrt{14}}{5}x=
5
2±
14
x = \dfrac{2}{5} + \dfrac{\sqrt{14}}{5}x=
5
2
+
5
14
or x = \dfrac{2}{5} - \dfrac{\sqrt{14}}{5}x=
5
2
−
5
14
Related Questions
For Greta's birthday party, her parents ordered 6 pizzas. If they cut the pizzas into sixths, how many pieces will there be? Choose the model that matches this problem.
Answers
Options aren't avaible
Answer:
(1 ÷ 1/6) * 6
36 pieces of pizza
Step-by-step explanation:
Given that :
Number of pizzas ordered = 6
Divisions per pizza = 1/6 ;
Hence, 1 full pizza is divided into 1 ÷ 1/6 = 1 * 6/1 = 6 pieces
6 * 1/6(1)
The total pieces of pizzas equals :
6 pieces per pizza * number of pizzas
6 * 6
= 36 pieces of pizza
Which of the following expressions represents the distance between −3.9 and −4.7?
Choice a: ∣−4.7−3.9∣
Choice b: ∣−3.9−4.7∣
Choice c: none of the above
NEED NOW
(Absolute value)
Answers
Answer: Choice C: none of the above
Step-by-step explanation:
The distance between two numbers would be |(number 1) - (number 2)|
--------------------------------------------------------------
Given
Number 1=-3.9
Number 2=-4.7
|(number 1) - (number 2)|
=|(-3.9) - (-4.7)|
=|-3.9+4.7|
The choice is not available.
Therefore, it is none of the above.
Hope this helps!! :)
Please let me know if you have any questions
7 + 3 (2x - 5) = 3x + 7
Answers
Answer:
x = 5
Step-by-step explanation:
Given
7 + 3(2x - 5) = 3x + 7 ← distribute parenthesis and simplify left side
7 + 6x - 15 = 3x + 7
6x - 8 = 3x + 7 ( subtract 3x from both sides )
3x - 8 = 7 ( add 8 to both sides )
3x = 15 ( divide both sides by 3 )
x = 5
Another way to write 300 + 70 + 5/10 + 8/100
Pick one:
A) 370.58
B) 370.058
C) 30, 070. 508
D) 30,070. 58
No! links or guessing or lm will report you! :)
Answers
Answer:
A. 370.58
Step-by-step explanation:
Hope that helps
Harper sold a $350,000 home. She earned 3% commission. How much did she make off the sale of the home?
Answers
Answer:
10500 dollars
Step-by-step explanation:
350,000 * .03 = 10500
What value of x is the solution to 2.5x =8?
Answers
Answer:
x=3.2
Step-by-step explanation:
2.5x=8
divide both sides by 2.5
x=3.2
Answer:
x = 3.2
Step-by-step explanation:
[tex]2.5x = 8[/tex]
[tex]2.5x - 2.5 = 8 \div 2.5[/tex]
[tex]x = 8 \div 2.5[/tex]
[tex]x = 3.2[/tex]
A radius of 1 meter. What’s the area. Use 3.14 for pi
Answers
Answer:
A is 3.14
Step-by-step explanation:
. good day.hope it helps
Answer:
Step-by-step explanation:
circumference = 2 * pi * radius
Plug in 4 meters for radius and 3.14 for pi .
circumference ≈ 2 * 3.14 * 4 m
Multiply these together.
circumference ≈ 25.1 m
area = pi * radius2
Plug in 4 meters for radius and 3.14 for pi .
area ≈ 3.14 * (4m)2
Square the 4m .
area ≈ 3.14 * 16m2
Multiply.
area ≈ 50.2 m2
PLEASE HELP!!
13. Every Friday, milkshakes are on sale at The Ice Cream Shoppe with a 15% discount.
13a) The regular price of a milk shake is $4. What is the discount price?
13b) If the regular price of a shake is X dollars, what is the discount price in dollars?
13c) On your birthday, the discount price of an ice cream cake is $22. What is the regular price?
(*I really need help on this T^T*)
Answers
Answer:
13a) $3.40
13b) 0.85X
13c) $25.88
Step-by-step explanation:
13a) When there is a 15% discount, we can say that we are only paying 85% of the original price because out of 100%, 15% is taken away. 85% in decimals is 85/100 = 0.85.
$4 x 0.85 is the discounted price, which is $3.40
13b) In 13a, the price was 4. Now, the price is X. Hence we plug in (substitute) X in for 4, giving us X x 0.85, which we can write as 0.85X
13c) 85% of the cake is $22. To find 100% of the price, we can find 1% of the original price and then multiply that by 100, which gives us 100% of the price.
We know 85% of the original price. Therefore, dividng the price by 85 will give us 1% of the price. 1% = $22/85
Finally, to calculate 100%, we multiply by 100.
22/88 x 100 = 440/17 which is 25.882 in decimals, which we round to 2 decimal places (because it is currency) = $25.88
PLEASE HELP THIS IS VERY IMPORTANT I WILL GIVE YOU BRAIN THING IF ITS CORRECT (you can use a calculator if you want)
Answers
Answer:
1. B.
2. A, E.
3. D.
Step-by-step explanation:
1. 8.225 ÷ 5 = 1.645
2. 892 ÷ 8 = 111.5
8920 ÷ 80 = 111.5
894 ÷ 10 = 89.4
89.2 ÷ 0.08 = 1115
8.92 ÷ 0.8 = 11.15
0.892 ÷ 0.008 = 111.5
3. 4367 ÷ 0.004 = 1,091,750
What are the steps for 625 to the power of 3/4
Answers
Answer:
125
Step-by-step explanation:
note that
625 = [tex]5^{4}[/tex]
Using the rule of exponents
[tex](a^{m}) ^{n}[/tex] ⇔ [tex]a^{mn}[/tex]
Then
[tex](5^{4}) ^{\frac{3}{4} }[/tex]
= 5³
= 125
Which set of values makes the inequality n > -5 true?
А
{-5, -5.5,-6)
B
{-5, -4.5, -3)
Ć
(-6,0,5)
D
{-6, -7,-8}
Answers
Answer:
the answer is c :)
Step-by-step explanation:
Which expression is equivalent to (23)–2 • 25?
Answers
Answer:
Step-by-step explanation:
That would be 23 - 50, or -27.
Next time, please include the answer choices. Thank you.
Someone please help!!!
Answers
42yd is your answer
Answer:
area of shaded region =area of (square -circle)
=l²-π(d/2)²
=14²π(14/2)²=196-49π=42.061=42yd
hey can you help me fast!!
Answers
Answer:
should be the 2nd.............
I have 0.0254 it and they say approximately to 2 decimal place will I include the 0 after the decimal point
Answers
Yes. You have to include 0.
If we round off this value to 2 decimal places then it is
0.03
Reason: after decimal point or before decimal point if you have to drop some digits and if the digit to be droped are 5 followed by non zero digit then previous digit is increased by 1.
Here, the digits to be droped are 5 and 4 after 0.02 so we increase 2 by 1 that is 3.
[tex] \sqrt{1.69} - \sqrt[3]{0.001} [/tex]
Answers
Given:
The expression is:
[tex]\sqrt{1.69}-\sqrt[3]{0.001}[/tex]
To find:
The value of the given expression.
Solution:
We have,
[tex]\sqrt{1.69}-\sqrt[3]{0.001}[/tex]
On simplification, we get
[tex]\sqrt{1.69}-\sqrt[3]{0.001}=1.3-0.1[/tex]
[tex]\sqrt{1.69}-\sqrt[3]{0.001}=1.2[/tex]
Therefore, the value of the given expression [tex]\sqrt{1.69}-\sqrt[3]{0.001}[/tex] is 1.2.
What is/are the coefficient(s) in the expression below? 2x^2 + x - 15
PLEASE ANSWER MEE
Answers
Answer:
a = 2, b = 1, c = - 15
Step-by-step explanation:
The standard form of a quadratic expression is ax² + bx + c ( a ≠ 0 )
2x² + x - 15 ← is in standard form
with a = 2, b = 1, c = - 15
HELP PLEASE QUICKLY ASAP!
You will be rewarded with 20 points!
Please help!
Answers
make triangles and find the central angle
Answers
Answer:
Step-by-step explanation:
It 14
Answer:
this is like related to fractions right?
Step-by-step explanation:
Only #6. I Would Appreciate Help On This One
Answers
Answer:
25π
Step-by-step explanation:
well the area is 78.53981633974 but in terms of pi, it's 25π
consider the function f(x)=4x^2+8x-10 and g(x)=5x^2+10x-1
1 function f is a graph whose vertex is_____ the vertex for the graph of function g
a) higher than
b)lower than
c)located at the same axis of symmetry as
2 the vertex for the graph function f is_____ the vertex for the graph of function g
a) 2 units to the right of
b) 2 units to the left of
c) located at the same axis of symmetry as
Answers
HELP! Find the area of the parallelogram the figure is not drawn to scale
Answers
38 x 35= 1330
It is not 44 because the height and base should form a perpendicular line
The area of the parallelogram in the diagram given is: 1,330 in.²
What is the Area of a Parallelogram?Area of a parallelogram = (base × height)
Given the following dimensions of the parallelogram:
Base = 38 in.
Height = 35 in.
Area of the parallelogram = 38 × 35
Area of the parallelogram = 1,330 in.²
Learn more about the area of a parallelogram on:
https://brainly.com/question/3050890
X/3 + 4<6 pls help will mark branliest
Answers
Answer:
x < 6
Step-by-step explanation:
[tex]\frac{x}{3}+4 < 6[/tex]
Subtract 4 form both sides
[tex]\frac{x}{3}<6-4\\\\\frac{x}{3}<2[/tex]
Multiply both sides by 3
[tex]x < 2*3\\\\x < 6[/tex]
Answer:
X = 5.9- meaning 5.9 or anything under that or lets just say 5 because 5/3 = 1.6 + 4 = 5.6
Step-by-step explanation:
Have a nice day
sorry if its wrong
Math help please asap
Answers
b=1.445 x 10^-2
Answer:
a.) 0.51
b.) 1445
Step-by-step explanation:
a.) 5.1 x 10^-1 can be written as 5.1 x 0.1 which equals 0.51.
b.) 1.7 x 10^4 x 8.5 x 10^-2 can be simplified either by condensing 10^4 and 10^-2 to equal 10^2, or substituting the expression into a calculator.
This should equal 1.7 x 8.5 x 10^2 or 1445.
Ty Given that the mzx is 30° in the diagram above, find the m_y.
Answers
9514 1404 393
Answer:
y = 30°
Step-by-step explanation:
Angles x and y are "vertical" angles, so are congruent.
x = y = 30°
PLEASE HELP!!!!!! ILL MAKE BRAINLIEST
Answers
Answer:
x = 17
Step-by-step explanation:
75 = 4x + 7
68 = 4x
x = 17
Answer:
17
Step-by-step explanation:
Set equal to each other
Subtract 7 from 75
Divided the answer (68) by 4
Receive the answer 17
Hope this helps, have a good day.
The altitude on a ski trail drops 2 feet for
every 5 feet of horizontal distance traveled,
The end of the trail has an altitude of
4,000 feet and is a horizontal distance of
2000 feet from the start,
a. Write an equation in point-slope form
that represents this situation, and
graph the equation.
Answers
Answer:
rrrrrehwhwjwmkwwuwiwiiwiwiwiw
which expression is equivalent to...........
Answers
Answer:
6.5y-11
Step-by-step explanation:
i think that's the answer. if I'm wrong tell me right away good day
find the volume of the sphere d=18
Answers
Answer:
3053.62806
Step-by-step explanation:
d=18 so r=9
(check attachement)
Can someone help me with these true or false questions thank you
Answers
Sorry if it’s wrong I’m kinda of learning this too.