Answer:
Nathan Hale
Step-by-step explanation:
what is 23^a x 23^b= Pls I need the answer
Answer:
23^(a+b)
Step-by-step explanation:
23^a x 23^b =23^(a+b)
plsss answer this for meeeee
find sum of the roots
full questions is up there in the photo attached
helppp plz :(
Answer:
C. -4/3
Step-by-step explanation:
Start by finding the roots of the equation by factorising.
3x³+4x²-4x=0
x(3x²+4x-4)=0
x(3x-2)(x+2)=0 [because (ax+b)(cx+d)=(ac)x²+(ad+bc)x+(bd)]
If multiplying these three terms works out to be zero, we know that one of the terms must be zero, as anything multiplied by zero is zero.
So
x=0, or 3x-2=0, or x+2=0
Which means our roots are
x=0, x=2/3, x=-2
Now find the sum of these roots: 0+(2/3)-2=(2/3)-(6/3)=-4/3
Distribute 6 ( 0.4x + 5)
Answer:
2.4x+30
Step-by-step explanation:
(6*0.4x)+(6*5)
2.4x+30
factorise the following expression
Step-by-step explanation:
Try different products to find 26
split the coefficients of the middle term ie 15x
expand the equation
Regroup
Answer =(x+2) (x+13)
what is the volume in cubic inches of a rectangular prism with and a height of 7 inches a width of 4 inches a length of 20 in
Answer:
560 in²
Step-by-step explanation:
7 x 4 x 20 = 560 in²
3.2468 rounded to the nearest tenth.
please help me
Answer:
3.2
Step-by-step explanation:
Find the number in the tenth place
2
and look one place to the right for the rounding digit
4
. Round up if this number is greater than or equal to
5
and round down if it is less than
5
.
In the diagram below, DF = JL = a, FE = LK = b, and triangle DEF is a right triangle.
Use the drop-down menus to complete the proof that if the equation a² + b2 = c2 is true of
the side lengths in triangle JKL, then triangle JKL must be a right triangle.
a
b
c
b
Triangle DEF is a right triangle
a² +6² c²
Click the arrows to choose an answer from each menu.
To prove triangle JKL is a right triangle, we must show that Choose... is a right angle.
Since triangle DEF is given to be right triangle, the Pythagorean theorem can be applied to
determine that Choose...
We already know that a² + b2 = c in triangle JKL, SO
these two equations show that Choose...
which is enough to
prove that triangles DEF and JKL are congruent triangles. Then, triangle JKL must be a
right triangle because Choose...
hi
Answer:
Angle L,
a^2+b^2=DE^2
De^2=c^2 and CE=c
angle L=F
ΔDEF and ΔJKL are congruent to each other.
TriangleTriangle is a polygon that has three sides and three angles. The sum of the angle of the triangle is 180 degrees.
Right angle triangleIt is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.
Given
DF = JL = a, FE = LK = b,
And ΔDEF is a right triangle.
To findΔDEF and ΔJKL are congruent to each other.
How to find the ΔDEF and ΔJKL are congruent to each other?Since the Pythagoras theorem is applicable in ΔDEF.
a² + b² = c²
This equation also satisfies the ΔJKL Hence angle K is the right-angle.
Since, ∠F = ∠L = 90°,
DF = JL = a,
FE = LK = b
Therefore, ΔDEF ≅ ΔJKL
Thus, ΔDEF and ΔJKL are congruent to each other.
More about the triangle link is given below.
https://brainly.com/question/25813512
Find the slope of the line passing through the
points (-6, 1) and (4, -4)
A.1/2
B. 2
C. - 1/2
D. -2
Answer:
c:-1/2
Step-by-step explanation:
I used mathpapa it explains it step by step if you need the explanation
A seamstress charges 25$ for an initial visit and then 18$ per hour of work. Emma paid 88.00$ to make a dress. How long did it take to seamstress Emma's dress
illmakeubrainlessforthecorrectanswer
Answer:
THE CORRECT ANSWER IS B- 73 FEETThe given condition in question will form a right angle triangle
and the length of sides of triangle are given 55ft, 48ft and missing one.
Now using pythagoras theorem,55²+48²= x²
x² = 3025 + 2304
x² = 5329
Taking square root of 5329 will give 73 ft!
In Test A, suppose you make 100 experimental measurements of some quantity and then calculate mean, standard deviation, and standard error of the numbers you obtain. In Test B, suppose you make 1000 experimental measurements of the same quantity and you again calculate mean, standard deviation, and standard error.
How would you expect the mean, standard deviation, and standard errors found in Test A and Test B to compare? (You can use the Excel simulation and change the "Number of Experiments" parameter to investigate this yourself.
A.) I would expect the means, the standard deviations, and the standard errors in Test A and Test B to be about the same.
B.) I would expect the means of the two tests to be about the same, but both the standard deviation and the standard error in Test B should be smaller than in Test A
C.) I would expect the means of the two tests to be about the same, but both the standard deviation and the standard error in Test B should be bigger than in Test A
D.) I would expect the means and standard deviations in the two test to be about the same, but the standard error in Test B should be smaller than in Test A.
E.) would expect the means and standard deviations in the two test to be about the same, but the standard error in Test B should be larger than in Test A.
Answer:
D.) I would expect the means and standard deviations in the two test to be about the same, but the standard error in Test B should be smaller than in Test A.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]
By the Central Limit Theorem:
Both tests, A and B, are of the same quantity, so they have the same mean and standard deviation. However, since the standard error is inversely proportional to the sample size, and test B has a greater sample size than test A, the standard error in test B should be lower, and thus, the correct answer is given by option D.
the area of sally's classroom is 21.5x41 square feet. the area of Georgia's classroom is (21.5x41)-56 square feet without doing any calcalaion determine .how the area of Georgias classroom compares to the area of sally's classroom plz fast
Answer:
Sally's room is 61 square feet bigger than Georgia's room
Step-by-step explanation:
Sally's room's area: 881.5 square feet
21.5 x 41 = 881.5
Georgia's room's area: 820.5 square feet
(21.5 x 41) - 56 = 820.5
881.5 - 820.5 = 61
EASY 7TH GRADE MATH
2r=62
Answer:
r=31
Step-by-step explanation:
2r=62
r=31
Find the area of the figure below. Round your answer to one decimal place.
Answer: 57.1 (rounded)
Step-by-step explanation:
Area of triangle formula: 1/2 x base x height
Area of a semicircle: 1/2 x pi x r^2
(1/2 x 8 x 8) + (1/2 x pi x 4^2)
= 57.1 (rounded)
12/7 as improper fraction
12/7 is already an improper fraction
Graph the piecewise function given below.
Answer:
this may help you.look it once
Help please i need ASAP
In the school parking lot at the high school, there were 120 cars and 30 SUVs, for a total of 150 vehicles. Complete the statement: People drove cars and SUVs in a ratio of __ to 1. (PLEASE HELP I NEED THE ANSWER ASAP)
Answer:
120 to 30 cars to SUVs, 120 to 150 cars to vehicles, 30 to 150 SUVs to vehicles, 4 to 1 cars to SUVs
What fraction in the simplest from represented by each point
What is the speed of the barrel if it took 91 seconds to travel 100 meters?
0.91 Meters per second
plz mark brainliest
find perimeter of each polygon. Assume that the lines which appear to be tangent are tangent. Part 1. NO LINKS OF ANY KIND.
9514 1404 393
Answer:
7) 57.8
8) 73.8
Step-by-step explanation:
The tangents from a given point are the same length. This means the perimeter can be calculated as twice the length of one side plus twice the length of an opposite tangent.
7) P = 2(22.2 +6.7) = 57.8
8) P = 2(22.9 +14) = 73.8
PLEASE HURRY AND HELP !!!!!!
Answer:
b
Step-by-step explanation:
the diameter is the length in the middle of the c circle of that makes sense while the radius is half of that. I hope this helps ik it's not the best description
-5(x-5)=2(-4x+5) find x step by step please
Answer: -5
Step-by-step explanation:
-5(x-5)=2(-4x+5)
-5x + 25 = -8x +10
3x +25 = 10 (add 8 from both sides)
3x = -15 (subtract 25 from both sides)
x = -5 (divide 3 from both sides)
Without using the formula, work out the gradient of the graph shown.
Give your answer in its simplest form.
Which expression is equivalent to 6 (3x + 4)?
9x +4
180 + 24
9.2 + 10
18.0 +4
Done
Answer: 18x+24
Step-by-step explanation:
Rachael has a job assembling a certain car accessory.
Last month she made a total of 424 items. Calculate her gross pay (in $) if she is paid on the following differential
piecework schedule.
Pay Level
Items produced
Rate per Item
1
1-160
$9.18
2
Over 160
$11.21
The answer is $4,428.24
Can someone pls help me I’m stuck
Answer:
i am sorry i have no idea sorry
Answer: B
Step-by-step explanation: Hope this help :D
Aubrey tried to prove that sin(θ)=cos(180°−θ) using the following diagram. Her proof is not correct.
Answer:
Angles ∠B and ∠C are complementary, not supplementary.
Step-by-step explanation:
I took the test. (khan academy)
Her proof is not correct because angles ∠B and ∠C are complementary, not supplementary.
What angles are not supplementary?If you add two acute angles in which each angle is large as possible, its sum will be less than 180°. By the definition of supplementary angles, it is impossible to get the supplementary angle when we add two acute angles.
How do you know if angles are complementary neither or supplementary?Supplementary angles are two angles whose sum is 180 degrees while complementary angles are two angles whose sum is 90 degrees. Supplementary and complementary angles do not have to be adjacent, but they can be.
Learn more about complementary here https://brainly.com/question/16281260
#SPJ2
Which of these groups of relative frequencies will be best buy a pie chart
Answer: You are correct! Whatever adds up to 100% is the answer! :)