Answer:
B. 3x-3y
Step-by-step explanation:
Answer:
(A) 3x - 4y
Step-by-step explanation:
What is the area of the rectangle
Answer:
20
Step-by-step explanation:
Subtract the 2 from the width of 7, and then multiply the height by the width.
4x5=20
After a company celebrated its ten year anniversary, the president of the company wanted to know how long employees have been with the company. Human resources provided the president with the box plot below.
Using the box plot, determine the best measures of the data.
The best measure of center is the (blank)
, and the best measure of variability is the (blank)
.
The number that best summarizes the data is (blank)
years of service.
The number that best describes how the data varies is (blank)
years of service.
Step-by-step explanation:
The measures of variability is blank, the number that best summarizes the data is blank, and the number that best describes how the data varies is blank
Please send the box plot, I can solve it then but there is not enough info right here. Sorry!
Find the area of a sector of a circle with radius 7 cm and and central angle 240°.
Answer:
103 cm^2
i just took the quick check
Please help asap I need it please
Answer:
Exponential decay
Step-by-step explanation:
Because the values are exponentially decreasing.
It is desired to estimate the average weight of a new born baby. The birth records of arandom sample of 60 babies' weights showed a mean of 7.0 lbs and standard deviation of 1.5 lbs.Construct a 95% confidence interval forμ.
Answer:
95% confidence interval for the mean
(6.61251, 7.38749)
Step-by-step explanation:
Step:-1
Given that a random sample 'n' = 60
Given that mean of the sample x⁻ = 7.0
Given that the standard deviation of the sample (S) = 1.5
Level of significance = 0.05
Degrees of freedom = n-1 = 60-1 = 59
t₍₀.₀₅ , ₙ₋₁₎ = 2.0010
Step(ii):-
95% confidence interval for the mean is determined by
[tex](x^{-} - t_{0.05,n-1} \frac{S.D}{\sqrt{n} } , x^{-} + t_{0.05 , n-1} \frac{S.D}{\sqrt{n} } )[/tex]
[tex]( 7.0 - 2.0010 \frac{1.5}{\sqrt{60} } , 7.0 + 2.0010 \frac{1.5}{\sqrt{60} } )[/tex]
(7.0 - 0.38749 , 7.0 + 0.38749)
(6.61251 , 7.38749)
Final answer:-
95% confidence interval for the mean
(6.61251 , 7.38749)
The work of a student to solve the equation 3(2x − 4) = 8 + 2x + 6 is shown below: Step 1: 3(2x − 4) = 8 + 2x + 6 Step 2: 5x − 7 = 14 + 2x Step 3: 5x − 2x = 14 + 7 Step 4: 3x = 21 Step 5: x = 7 In which step did the student first make an error and what is the correct step? (5 points) a Step 2; 6x − 12 = 14 + 2x b Step 2; 6x − 7 = 2(6 + x + 4) c Step 3; 5x − 2x = 14 − 7 d Step 3; 5x + 2x = 14 + 7
Step-by-step explanation:
The answer is 7x= 21
divide both sides by 7
to get 3
therefore the answer is X =3
What is the least possible quotient when two distinct
integers from the set
{-5,-3, -2,0,+1,+6,+18}
are divided?
I NEED THIS ASAP
Answer:
18 ÷ (-2) = -9
Step-by-step explanation:
18 ÷ (-2) = -9 is the least possible quotient.
To meet the requirement, we should divide the biggest positive number by smallest negative number
What decimal is equivalent to the fraction 12/15?
A. 0.07
B. 0.08
C. 0.7
D. 0.8
A right triangle has an area of 98 square inches. If the triangle is not an Isosceles triangle, what are the all possible lengths of the legs?
Answer:
The possible length of the triangle =
1) (1inches, 196inches)
2) (2incheq, 98inches)
3) (4inches , 49 inches)
4) (7 inches , 28 inches)
Step-by-step explanation:
We are told the above Triangle is not an Isosceles Triangle
Hence, we assume it is a right angle triangle
The area of a triangle is = 1/2 × Base × Height
= let us represent Base and Height = x
Hence:
1/2 × x × x = 98
x² /2 = 98
Cross Multiply
x² = 98 × 2
x² = 196
Step 2
We find the factors of 196
1× 196 = 196 (1, 196)
2 × 98 = 196 (2, 98)
4 ×49 = 196 (4, 49)
7 × 28 = 196 (7, 28)
Therefore, all the possible length of the triangle =
1) (1inches, 196inches)
2) (2incheq, 98inches)
3) (4inches , 49 inches)
4) (7 inches , 28 inches)
The sum of two numbers is 90. Their difference is 18. Find
the numbers.
Answer:
54 and 36.
Step-by-step explanation:
Mhanifa please help!!!!!
Answer:
∠H≅∠B
GH/DJ = AB/DC
Step-by-step explanation:
Find the missing side lengths. Leave your answers as radicals in simplest form.
Answer:
Step-by-step explanation:
fat face
Use the quadratic formula to solve for x.
6x²-3x=1
Round your answer to the nearest hundredth.
If there is more than one solution, separate them with commas.
If we know the quadratic formula, the quadratic formula is
x = [-b ± √(b²- 4ac)] / 2a
Gosh! So overwhelming! But let's look at the composition of a quadratic equation:
ax² + bx + c = 0
And we have 6x² - 3x = 1. So, what do we do? We need to put this quadratic equation into an easy form to find the value of a, b, and c to plug in to the equation.
We can just minus one on both sides to get this:
6x² - 3x - 1 = 0
Is it in the form of ax² + bx + c? Yes! a = 6, b = -3, and c = -1. Now, all we have to do is plug it into the quadratic formula.
x = [-b ± √(b²- 4ac)] / 2a
x = [-(-3) ± √((-3)²- 4(6)(-1))] / 2(6)
[3 ± √(9- 4(6)(-1))] / 12
[3 ± √(9 + 24)] / 12
[3 ± √(33)] / 12
At this point, we should just use a calculator, and recognize we have two answers because of the plus-or-minus sign! (or this sign: ±)
[3 ± √(33)] / 12
1) [3 + √(33)] / 12 = 0.73 approximately
2) [3 - √(33)] / 12 = -0.23 approximately
So, x=0.73 and x= -0.23.
Plsss help ASAP
200 extra point and brainliest
Answer:
A, B, D
Step-by-step explanation:
Answer:
A, B, D, E
Step-by-step explanation:
1. 100 = 100%, so seeing that there are 55 boys and 45 girls, we can go ahead and turn those into percentages, making this answer correct.
2. Once again, 100 = 100%, so 17 = 17%
3. "10/55 of those" isn't implying this is the boys only, but rather everyone, so this statement is not correct.
4. 10/35 of the students who chose math are girls. We can see that on the graph.
5. 8 + 8 = 16. Those are both the same number and half and half of the boys and girls...
Hope this helped!
Which is a perfect square?
6^1
6^2
6^3
6^4
Should be 6^3.
Have a good day!
Find ∠L using law of sines
Answer:
29°
Step-by-step explanation:
:)
what is euclid's lemma
Euclid's Division Lemma statement is that if we divide an integer by another integer (non-zero integer), we will get a unique integer as qoutient and a unique integer as remainder
F(x)=x^2. What is g(x)?
A. G(x)= x^2–4
B. g(x)= x^2+4
C. g(x)= -x^2-4
D. g(x)= -4x^2
Answer:
C
Step-by-step explanation:
I'm super sorry if I get this wrong you don't have to choose C I feel like I'm wrong but have a nice day
The diameter of a sphere is multiplied by 1/5. What is the effect on the surface area?
Answer choices:
5 times bigger
5 times smaller
25 times bigger
25 times smaller
15 times bigger
15 times smaller
125 times bigger
125 times smaller
Answer is not here
Answer:
25 times smallerStep-by-step explanation:
Scale factor is:
k = 1/5Ratio of surface areas is:
k² = (1/5)² = 1/25Surface area will be 25 times smaller
Correct choice is D
We know the ratio of sides to area
a/b=a²/b²So
If diameter is multiplied by 1/5
Surface are increases
(1/5)²1/2525 times smaller
A baby's crib has an area of 690:square inches and a perimeter of 106 inches.What are the dimensions of the crib
Answer:
The crib is 30 inches wide and 23 inches long.
Step-by-step explanation:
Assuming that the crib is rectangular, then the crib has a length L and a width W.
And remember that for a rectangle of width W and length L, the perimeter is:
P = 2*L + 2*W = 2*(L + W)
And the area is:
A = L*W
In this case, the perimeter is 106 in, then:
P = 106in = 2*(L + W)
And we also know that the area is 690 in^2
Then:
A = 690in^2 = L*W
Then we have a system of equations:
106in = 2*(L + W)
690in^2 = L*W
To solve this, first, we need to isolate one of the variables in one of the equations.
Let's isolate L in the first one:
106in/2 = L + W
53 in = L + W
53in - W = L
Now we can replace this in the other equation:
690in^2 = L*W = (53in - W)*W = 53in*W - W^2
690in^2 = 53in*W - W^2
Now we need to solve this for W.
This is a quadratic equation:
W^2 - 53in*W + 690 in^2 = 0
The solutions of this equation are given by Bhaskara's formula:
[tex]W = \frac{-(-53in)\pm \sqrt{(-53in)^2 - 4*1*(690in^2)} }{2} = \frac{57in \pm 7in}{2}[/tex]
Then the two possible solutions of W are:
W = (53in + 7in)/2 = 30in
W = (53in - 7in)/2 = 23in
We can choose any one of these, so let's choose W = 30in
If we replace this in the equation: "53in - W = L"
We can find the value of L:
53in - 30in = 23in = L
Then we have:
W = 30in
L = 23in
what is 66.66 as a fraction
Answer:
The answer to this question is 3333/50
Answer:
66.66 as a fraction is [tex]{66}\frac{33}{50}[/tex]
Step-by-step explanation:
Antonio writes the equation 80.4 ÷ d = 0.0804.
Part A
What value of d makes the equation true?
A. 10 to the 2 power
B. 10 to the 3 power
C. 10 to the 4 power
D. 10 to the 5 power
Answer:
B
Step-by-step explanation:
Because
A)
[tex]80.4 \div {10}^{2} = 0.8.4[/tex]
B)
[tex]80.4 \div 10^{3} = 0.0804[/tex]
C)
[tex]80.4 \div {10}^{4} = 8.04 \times {10}^{ - 3} [/tex]
D)
[tex]80.4 \times {10}^{5} = 8.04 \times {10}^{ - 4} [/tex]
Can someone please. help Ill give branliesttttt
Answer:
3rd one!
Step-by-step explanation:
I think it’s B but I am not sure sorry dude
The mean of Tom’s scores on 5 tests was 77.4%. The scores on his first four tests were 88, 77, 70, and 72. What was Tom’s score on his fifth test?
Answer:
88%
Step-by-step explanation:
First we multiply the mean by 5.
77.4 x 5 = 387
Then we add all of the test scores.
88 + 77 + 70 + 72 = 299
We subtract the total of the scores from 387, which we got from mulitplying the mean by 5.
387 - 299 = 88
Therefore, Tom's score on his fifth test was an 88%.
Hope this helps!
Help pls no links or I’ll report
Answer:
A) 6x - 3 + 8x
B) 14x - 3
E) 2 (3x - 2) + 8x + 1
Option 1, 2, and 5 are the correct answers.
Identify the coordinates of triangle ABC when it is dilated by a scale factor of 2 from the origin (0,0).
Answer:
[tex]A' = (-4,4)[/tex]
[tex]B' = (2,6)[/tex]
[tex]C' = (2,0)[/tex]
Step-by-step explanation:
Given [Missing from the question]
[tex]A = (-2,2)[/tex]
[tex]B= (1,3)[/tex]
[tex]C= (1,0)[/tex]
[tex]k = 2[/tex] --- scale factor
Required
The new coordinates
The new coordinate is calculated by:
[tex]New = Old * k[/tex]
So, we have:
[tex]A' = A * 2[/tex]
[tex]A' = (-2,2) * 2[/tex]
[tex]A' = (-4,4)[/tex]
[tex]B' = B * 2[/tex]
[tex]B' = (1,3) * 2[/tex]
[tex]B' = (2,6)[/tex]
[tex]C' = C * 2[/tex]
[tex]C' = (1,0) * 2[/tex]
[tex]C' = (2,0)[/tex]
So I have to factor polynomials by grouping
The question: 2m^3-2m^2+3-3m
The answer is supposed to be: (2m^2-3)(m-1)
I do need steps
Thx
Answer:
(2m^2-3)(m-1)
Step-by-step explanation:
2m^3-2m^2+3-3m
2m^3-2m^2-3m+3
2m^2(m-1)-3(m-1)
(2m^2-3)(m-1)
Answer:
(2m^2-3)(m-1)
Step-by-step explanation:
2m^3-2m^2+3-3m
=(2m^3-2m^2)+(3-3m)
=2m^2(m-1)+3(1-m)
=(m-1)(2m^2-3)
=(2m^2-3)(m-1)
I don’t understand how to find the answer to this problem!
Answer:
By using pythagoras theorem the problem can be solved;
(hypotenuse)^2=(pythagoras)^2+(base)^2
h^2=(20 mi)^2+(40 mi)^2
h^2=(400+1600) mi^2
h^2=2000 mi^2
h=√2000 mi^2
h=20√5 mi
⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️If the area of a circle is 113.04 sq ft, what is the diameter of that circle?
Answer:
12ft
Step-by-step explanation:
A=π r^2
113.04 = π r^2
113.04/ π = π r^2/ π
35.98=r^2
√35.98 =√r^2
r= 5.998
d=r*2
d=5.998*2
d=11.9969 rounded to 12 i guess
Please answer correctly !!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
1:2
Step-by-step explanation:
Triangle = 3
Square = 6
3/3 = 1
6/3 = 2
1:2
Please Mark Brainiest