Answer:
0.36582
Step-by-step explanation:
(a×b)
= (1.34×0.273)
= 0.36582
Help me with this please
The solution to the quadratic equation x² - 4x + 1 = 0 is x = ( 4 ±√12 ) / 2
What is the solution to the quadratic equation?A quadratic equation in its standard form is expressed as;
ax² + bx + c = 0
Where x is the unknown
To solve for x, we use the quadratic formula
x = (-b±√(b² - 4ac)) / (2a)
Given the quadratic equation in the question;
x² - 4x + 1 = 0
a = 1b = -4c = 1We substitute this values into the quadratic formula above and solve for x.
x = (-b±√(b² - 4ac)) / (2a)
x = ( -(-4) ±√( (-4)² - ( 4 × 1 × 1)) / (2 × 1)
x = ( 4 ±√( 16 - 4) ) / (2)
x = ( 4 ±√12 ) / 2
Therefore, ( 4 ±√12 ) / 2 is the solution to the equation.
Option C) ( 4 ±√12 ) / 2 is the correct answer.
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Can someone please help me with my hw.
Answer:
The answer is 1,440
Step-by-step explanation:
Answer:
1, 440Step-by-step explanation:
god bless
from philippines
Which expression represents the volume, in cubic units,
of the shaded part of the sphere?
4/3(10) + 4/3(4)
4/3(10) - 4/3 (4)
4/3(20) + 4/3 (4)
4/3(20) - 4/3 (4)
Answer:
B
Step-by-step explanation:
we have to subtract the volume of the biggest one from the volume of the smallest one
for find the volume it is used the radius, not the diameter
The side lengths of a 45-45-90 triangle are in the ratio 1 : 1: V2. What is tan 45°?
A. V2/2
B. 1/2
C. V2
D. 1
Answer:
B. 1/2
Step-by-step explanation:
divide/
The value of measure of tan 45 is B. 1/2
What are trigonometric identities?Trigonometric identities are the functions that include trigonometric functions such as sine, cosine, tangents, secant, and, cot.
We are given that side lengths of a 45-45-90 triangle are in the ratio 1 : 1: √2
A 45-45-90 triangle is a special case of a right triangle in which both legs we have the same value and the hypothenuse is h.
By the Pythagorean Theorem:
Tan 45 = pythagoras/ base
Tan 45 = 1/2
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Please help!!! Will give brainliest!
Answer:
im pretty sure its a but i could be wrong ✋
What is 5.88 divided by -4
Answer:
-1.47
Step-by-step explanation:
5.88/-4= -1.47
Pythagorean theorem please show work thank you
Answer:
Step-by-step explanation:
In triangle ABC, a=31 , b=22 , c=18. Identify m∠A rounded to the nearest degree.
Answer:
101
Step-by-step explanation:
According to the Law of Cosines, for any △ABC with side lengths a, b, and c, a2=b2+c2−2bccosA; b2=a2+c2−2accosB; and c2=a2+b2−2abcosC
.
The Law of Cosines can be used because all three side lentghs are known.
Set up the equation for the Law of Cosines:
a2=b2+c2−2bccosA
Substitute the known values into the Law of Cosines:
312=222+182−2(22)(18)cosA
Square the values and multiply:
961=484+324−792cosA
Add:
961=808−792cosA
Subtract 808
from both sides:
153=−792cosA
Divide both sides by −792
:
153−792=cosA
According to this equation m∠A
is equal to the inverse cosine function of −153792
. Write this:
m∠A=cos−1(−153792)
Calculate the value of the inverse cosine −153792
on a calculator:
m∠A≈101°
Therefore, m∠A≈101°
.
Answer:
101
Step-by-step explanation:
calculate using the law of cosines
hope that helps!
What is area? how is the mass of a body? Write its si unit.
Answer:
The total quantity of matter contained in an object is called its mass.
It is scalar quantity.
It is measured by beam balance.
Mass of the object remains constant at all the places.
We can measure mass of an object by its inertia.
SI unit of mass is ”kg”.
brainlest answer plz ..
HURRY WILL GIVE BRAINLIEST (if correct)
How many edges does the figure have?
A. 3
B. 4
C. 5
D. 6
Answer:
I think 6 I don't see it being anything other than that I can't even think right now that's crazy
Answer:
4
One at the ap-ex, and 3 on the side. A regular triangle has 3 sides, and since this is a third dimension shape, there is one at the top.
what is the value of x if x =32
Answer:
32
Step-by-step explanation:
you gave me the answer :)
Answer:
32
Step-by-step explanation: its in your question
how is 2/5 + 3/5 = 1
Answer:
Hey mate......
Step-by-step explanation:
This is ur answer.....
= 2/5 + 3/5 = 5/5 = 1(When you simplify both numbers, you get 1)
Hope it helps!
Brainliest pls!
Follow me! :)
Imagine cutting up a pizza into 5 slices
If you take 2 slices, then you take 2 out of the 5, so the fractional amount you took is 2/5 of the full pizza.
If your friend takes 3 slices, then she or he takes 3/5 of the full pizza
Adding the two fractional amounts should get us back to 1 full pizza, which is why 2/5+3/5 = 1.
-----------
We could say this:
2/5 + 3/5 = (2+3)/5 = 5/5 = 1
Dividing any number over itself, as long it's not zero, always leads to 1.
So that's why 5/5 = 1.
Use the diagram of the right triangle above and round your answer to the nearest hundredth.
If Measure of angle B = 60 degreesº and a = 10 meters, find b.
Answer:
awnser c
Step-by-step explanation:
What is the answer to the expression? Use Distributive Property to solve the expression.
2(35x + 15)
boy i suck at geometry fr can someone help me
Answer:
The measure of Angle G is 41
Step-by-step explanation:
We know that in a parallelogram, opposite angles are congruent, therefore let's solve for x-value first;
3x + 11 = 5x - 9
11 = 5x - 3x - 9
11 = 2x - 9
11 + 9 = 2x
20 = 2x
20/2 = x
10 = x
Now that we have x-value, we can substitute it in the equation for Angle G to find it's angle measure;
5(10) - 9 = ∠G
50 - 9 = ∠G
41 = ∠G
So the final answer = The measure of Angle G is 41
Hope this helps!
William discovers that the number of nuts in a bag of cashews is normally distributed with mean 42 and standard deviation 4. If he buys 200 bags, how many of them can he expect to contain fewer than 34 nuts?
Answer:
4.56, so he should expect between 4 and 5 of them to contain fewer than 34 nuts.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean 42 and standard deviation 4.
This means that [tex]\mu = 42, \sigma = 4[/tex]
Proportion with fewer than 34 nuts:
p-value of Z when X = 34. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{34 - 42}{4}[/tex]
[tex]Z = -2[/tex]
[tex]Z = -2[/tex] has a p-value of 0.0228.
Out of 200 bags:
0.0228*200 = 4.56.
4.56, so he should expect between 4 and 5 of them to contain fewer than 34 nuts.
Find the GCF of the expression 24a^7 +18a^5+12a^3
Answer:
the correct answer is 6a³
Answer:
6a³
Step-by-step explanation:
First find the GCF of the numbers, which is the easy part...
The largest number that 24, 18, and 12 can all be divided by is 6.
So 6 is the first part of the GCF.
Now for the variable...
The smallest exponent in an instance of the variable is 3.
So a³ is the variable part.
GCF: 6a³
if 9x × 3x+1 = 2187, what is the value of x
Answer:
1093/6
Step-by-step explanation:
9x + 3x + 1 = 2187
12x + 1 = 2187
12x = 2187 - 1 = 2186
12x = 2186
x = 2186/12 = 1093/6
Hope u understand
Please mark as brainliest
Which fraction is equal to 7/-9? A. -7/9 B. -7/-9 C. 7/--9 D. --7/9
Answer:
A = -7/9
Step-by-step explanation:
7 / -9
Move the negative to the top
-7 / 9
Hi there!
»»————- ★ ————-««
I believe your answer is:
[tex]\text{A) }\frac{-7}{9}[/tex]
»»————- ★ ————-««
Here’s why:
We can apply the rules for products and quotients of values with different signs. If the signs of two numbers are the same, then the product/quotient would be positive. If the signs are different, the sign of the product/quotient would be negative.⸻⸻⸻⸻ [tex]\boxed{\text{Equivalent Faction}}\\\\\rightarrow \frac{7}{-9}= -0.77777...... \leftarrow\\\\------------\\\text{Option A: } \frac{-7}{9} = -0.77777......\\\\\text{Option B: } \frac{-7}{-9}= 0.77777......\\\\\boxed{\text{Recall that if two numbers have the same sign then the product or quotient would be positive.}}\\\\\text{Option C: }\frac{7}{-(-9)}=\frac{7}{9} = 0.77777......\\\\\text{Option D: } \frac{-(-7)}{9}=\frac{7}{9} = 0.77777......[/tex]⸻⸻⸻⸻
Option A's fraction is equivalent.
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
A test was given to 120 students, and the scores approximated a normal distribution If
the mean score was 72 with a standard deviation of 7, approximately what percent of the
scores were 65 or higher?
Answer:
84.13% aka. 101/120 students
Step-by-step explanation:
P(X>65) = normalcdf(65,100,72,7) = 0.8413130544 ≈ 0.8413 ≈ 84.13%
Therefore, about 84.13% of the scores were 65 or higher, meaning that about 101 students got a score of 65 or higher.
84% of students have a score of 65 or higher.
What is Normal Distribution?'Normal distribution is a continuous probability distribution wherein values lie in a symmetrical fashion mostly situated around the mean.'
According to the given problem,
For this sum, the mean and standard deviation are mentioned.
Mean = 72
S.D = 7
We will be using the bell curve of normal distribution for solving this sum.
Area under the curve that represents more than 65:
= 34% + 34% + 13.50% + 2.35% + 0.15%
= 84%
Hence, we can conclude that 84% of the scores were 65 or higher.
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Imani is a scientist working with a cylindrical beaker. The base of the right cylinder has a diameter of 19 cm. She fills the
beaker with 2256.254 Cms of an acid. Approximately how high did the acid fill up the beaker?
Answer:
7.96 cm
Step-by-step explanation:
radius of bottom: 19/2 = 9.5
area of bottom = pi * r^2 = 283.53
height * base area = volume
ASAP NEED HELP PLEASE
Answer:
B
line n has slope equal to zero
(free point) hey guys i have everything caught up but in science i have a 96 but a missing project. projects a worth 80 percent of your grade will i still pass? today’s the last day
Answer:
Just do it to your best ability
Step-by-step explanation:
You should just do it because it could still make your grade look poor so it should be good for future you as youll be looked upon as a better student
Pls show your work to answer the question.
Answer:
∠ EDC = 55°
Step-by-step explanation:
Since Δ ADE is isosceles then the 2 base angles are congruent , then
∠ EDA = [tex]\frac{180-20}{2}[/tex] = [tex]\frac{160}{2}[/tex] = 80°
Similarly for Δ BCD
∠ CDB = [tex]\frac{180-90}{2}[/tex] = [tex]\frac{90}{2}[/tex] = 45°
The 3 angles on AB sum to 180° , that is
80° + ∠ EDC + 45° = 180°
∠ EDC + 125° = 180° ( subtract 125° from both sides )
∠ EDC = 55°
PLEASE I NEEED HELP!!! YOU DONT HAVE TO AWNSER NUMBER 6
Answer:
6942-8.7 or 26/3-3.5 or -7/2James' grades on his last five tests were 93, 95, 89, 95, and 100. What does he need to make on his last test to have a mean (average) of exactly 95?
Answer: 98
Step-by-step explanation:
First find the mean of the numbers you currently have.
93 + 95 + 89 + 95 + 100
and divide by 5 to get 94.4.
Now you need to find the extra number.
The number has to be higher than 94. I know there is an easier way, but I started by adding 100 and kept going down til I was at 98.
93 + 95 + 89 + 95 + 100 + 98
divided by 6 is 95
Oscar is buying soil for his plants. He needs to fill one pot with 8 cups of soil and another pot
with 3 gallons of soil. If the price of soil is $2.50 per quart, how much, in dollars, will he pay in
all? You may use the conversions to help you answer the question.
Answer:
10
Step-by-step explanation:
2.50 4 times
Answer: 10
Step-by-step explanation:
A swimmer covers 180m in 20 seconds. How many metres does she swim in one second?
Answer:
She swims 9m in one second
Step-by-step explanation:
Find (a) the circumference and (b) the area of the circle. Use $3.14$ or $\frac{22}{7}$
for $\pi$ . Round your answer to the nearest hundredth, if necessary.
A circle with radius of 1 meter.
(a) circumference: about
m
(b) area: about
m²
Answer:
[tex]circumference = 2 \pi r = 2 \times 3.14 \ times 1 = 6.28m\\\\Area = \pi r^2 = 3.14 \times 1 \times 1 = 3.14m^2[/tex]
The circumference of the circle is, 6.28 meter.
And, The area of circle is, 3.14 meters²
What is Circle?The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.
Given that;
A circle with radius of 1 meter.
Now, We know that;
The circumference of the circle = 2πr
Hence, We get;
The circumference of the circle is,
⇒ 2 × 3.14 × 1
⇒ 6.28 meter
And, The area of circle is,
⇒ Area = πr²
⇒ Area = 3.14 × 1²
⇒ Area = 3.14 meters²
Thus, The circumference of the circle is, 6.28 meter.
And, The area of circle is, 3.14 meters²
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Parallelogram
15 in
18 in
Area:
Answer:
270
Step-by-step explanation:
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