Answer:
3.3
Step-by-step explanation:
7lb 3oz
3oz/16oz=.1875lb
7lb+.1875lb=7.1875lb
7.1875lb/2.2kg=3.27kg
What is the length of x?
Answer:
9.04
Step-by-step explanation:
tan 37 = x/12
0.7536 x 12= x
x = 9.04
Which choices are equivalent to the fraction below? Check all that apply.
Answer:
the answer is B & F
I don’t understand the steps for this problem
Answer:
-53
Step-by-step explanation:
You start off with the g of x equation
then you substitute -5 for the x value
after you solve that, you should get g of x = 23
then you take the f of x equation and plug 23 in for x
then you simplify that and you should end up with an answer of -53
Step-by-step explanation:
i just need points so i can ask my questions
Frankie scores a 70% on her math test. The test had 20 questions. How many questions did she get correct?
Answer:
14 questions correct
Step-by-step explanation:
x/20 *100 = 70
so x/ 20 = 70/100(0.7)
x/20 = 0.7
x = 0.7*20
x =14
!!!! URGENT evaluate the geometric series below !
Answer:
C
Step-by-step explanation:
S(6)= -2(1-(-3)^6)/1-(-3)
The picture says it all. If possible please explain. You don't have to but I would very much like to know how to solve this in the future.
Answer:
g(x)= ((x+4)^2) -2
Step-by-step explanation:
...............
Answer:
Step-by-step explanation:
I L L B E M A R K I N G B R A I N L I E S T T O W H O A N S W E R S F I R S T !
Answer:
Its the rectangle
Step-by-step explanation:
What is the value of N in this proportion 16/40= 8/n
Answer:
n = 20
Step-by-step explanation:
[tex]\frac{16}{40} = \frac{8}{n}[/tex]
Cross multiplication would result in:
16 * n = 8 * 40
16n = 320
n = 320 / 16
n = 20
Therefore the value of "n" in this proportion is 20.
Hope this helps!
Which equation can be used to find the length of the missing side x?
Answer:B) x = 7 sin 65°
Step-by-step explanation:
Sine = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{7}[/tex]
So 7 × [tex]\frac{x}{7}[/tex] = x
How to solve equations in which the variable is in an exponent
Answer:
It depends on the equation.
If the bases are equal and the variables are only in the exponents, set the exponents equal.
If there are variables in the exponents, but you cannot set the bases equal, then use logarithms.
Example 1:
[tex] 4^{2x + 5} = 4^9 [/tex]
Here you have the same base on both sides. The variables are in the exponents. Set the exponents equal and solve for x.
2x + 5 = 9
2x = 4
x = 2
Example 2:
[tex] 3^{2x} = 9^{6} [/tex]
The bases are different, but you can make the bases equal using laws of exponents. Remember that 9 = 3^2.
[tex] 3^{2x} = (3^2)^{6} [/tex]
[tex] 3^{2x} = 3^{12} [/tex]
Now you have equal bases, so the exponents must be equal.
2x = 12
x = 6
Example 3:
[tex] 10^{x + 2} = 9 [/tex]
Here you can't make the bases equal, so you take the log of both sides and use laws of logs.
[tex] \log(10^{x + 2}) = \log 3^2 [/tex]
[tex] (x + 2) \log 10 = 2 \log 3 [/tex]
Recall that: [tex] \log 10 = 1 [/tex]
[tex] x + 2 = 2 \log 3 [/tex]
[tex] x = 2 \log 3 - 2 [/tex]
What is the first term of a 14-term arithmetic sequence where the last term is −12 and the sum is 42?
A. 6
B. 7
C. 13
D. 18
please explain answer
=========================================
Work Shown:
Here are the variables we're working with
a = first termb = last term (aka nth term)n = number of termsS = sum of the first n termsIn this case, we know that
a = unknown (what we want to solve for)b = -12 n = 14S = 42We can use this formula to help find the answer
S = (n/2)*(a+b)
This formula only works for arithmetic sequences
So,
S = (n/2)*(a+b)
42 = (14/2)*(a+(-12))
42 = 7(a-12)
42/7 = a-12
6 = a-12
6+12 = a
18 = a
a = 18 is the first term of this arithmetic sequence
That's why the answer is choice D.
-----------
Side note: your book or your teacher may use the notation [tex]S_n = \frac{n}{2}(a_1+a_n)[/tex] but I figured it would be easier to use 'a' and b in place of [tex]a_1[/tex] and [tex]a_n[/tex] respectively.
Find the median and mean of the data set below:
25, 13, 6, 4,2
Answer: im sorry but there is nothing here to help? may you add a picture? or something file maybe?
Step-by-step explanation:
To predict what diameter a child would draw a nickel given family income, it would be most appropriate to: ___________
a. Use the regression equation
b. Use the mean y-value
c. Use the P-Value
d. Use the residual
Answer:
a. Use the regression equation
Step-by-step explanation:
Given
See attachment for missing part of question
Required
What can be used to predict diameter, given family income
We can see (by observation) that the data on the table can only be represented on a scattered plot, and scattered plot uses regression equation for data prediction.
i.e. [tex]y = mx + b[/tex] --- equation of line of best fit
In this case;
[tex]x \to income[/tex]
[tex]y \to diameter[/tex]
When the x value (income) is known, we can simply plug in the value in the above equation to get the y value (diameter)
Let W represent that a car is white, let N represent that a car is new, and let M represent that a car is mine. Analyze the logical form of the following statements:
a. If the car is not white and new, then it is mine.
b. The car being white or new is a sufficient condition for it being not mine.
c. The car is mine if and only if it is new and not white.
Answer:
Remember that if we have a proposition P, ¬P is the negation of that proposition.
We have:
W = car is white
¬W = car is not white
N = car is new
¬N = car is not new
M = the car is mine
¬M = the car is not mine.
Now, whit that defined, let's analyze the statements:
a: " If the car is not white and new, then it is mine."
We can write this as:
"Not W and N, then M"
using only symbols this is:
(¬W ∧ N) ⇒ M
where the symbol ∧ means "and"
and the symbol ⇒ means "then"
b " The car being white or new is a sufficient condition for it being not mine."
We can rewrite this in a simpler way:
"if the car is white or new, then is not mine"
We can write this as:
W or N, then, not M
using the symbols, we get:
(W ∨ N) ⇒ ¬M
Where the symbol ∨ means "or"
c " The car is mine if and only if it is new and not white."
This can be rewritten as:
"M if and only if N and not W"
Using only symbols, we get:
M ⇔ (N ∧ ¬W)
Where "⇔" means "if and only if"
ANSWER ASAP
Jennifer painted a tabletop that is shaped like a semi-circle. The diameter of the tabletop is 10 feet. What is the
area of the tabletop in square feet?
Answer:
12.5 pi or 39.26990
Step-by-step explanation:
First we can find the radius, which is half the diameter, 5 feet. To find the area of a semi-circle we would find the area of the circle and then divide by 2:
[tex]\frac{\pi r^2}{2}[/tex]
We can substitute what we have:
[tex]\frac{25\pi }{2}[/tex]
This gives us:
12.5 pi or 39.26990(Not sure what format you need it in)
Someone need help guys :/ yeah me please help me
Answer:
Step-by-step explanation:
yes two triangles are congruent by SSS theorem (side Side Side)
Uh please help 8x-4y=-4
-3x+4y=5
Subtract second equation from the first
Answer:
11x -8y = -9
Step-by-step explanation:
8x-4y=-4
-3x+4y=5
Subtract the second equation from the first
8x-4y=-4
-(-3x+4y=5)
-----------------------------
Distribute the minus sign
8x-4y=-4
+(3x-4y=-5)
-----------------------------
11x -8y = -9
solve the inequality for x:
x-1<2x+2<2x+1
Answer:
No solution exists
Step-by-step explanation:
x - 1 < 2x + 2 < 2x + 1
examine the center and right terms
2x + 2 < 2x + 1
Subtract 2x from both sides
2 < 1
This is False. Therefor
No solution exists
WILL GET 100 POINTS IF U ANSWER THIS!!!
If 4x=28, find the value of 29-5x.
Answer:
-6
Step-by-step explanation:
Substitute the value of the variable into the equation and simplify.
Answer:
-6 (not 100% sure)
Step-by-step explanation:
4x = 28
4 × 7 = 28
so
29 - 5x
if x is 7, 5 × 7 = 35
29 - 35 = -6
a number cubed decreased by 1 is equal to the product of the number and 12
Answer:
x³ - 1 = 12x
Step-by-step explanation:
A number cubed decreased by 1 is equal to the product of the number and 12
x³ - 1 = 12x
A toy has an original price of $12. Find the new price after 45% decrease
Answer:
New price =$6.60
Step-by-step explanation:
[tex]deduction \ percent = 45\% \\\\dedecution \ price = \frac{45}{100} \times12 = \$5.40\\\\\ Therefore , cost \ of \ toy \after \ deduction = 12 - 5 .40= \$ 6.60[/tex]
Hello there I hope you are having an great day :) A toy has an original price of $12. Find the new price after 45% decrease,
Find the original price - $12
Get the the discount percentage - 45%
Calculate the savings: 45% of $12 = 3.73
Subtract the savings from the original price to get the sale price: $12 - $3.73 = £8.27
Original Price = Sale Price / ( 1 - Percent Off / 100 ) = 21.8182 that would b the answer :)
At an auditorium, 3 1/2 sections are filled with people watching a play. Exactly 3/5 of the people watching the play are parents. What fraction of the sections are filled with parents?
Answer:
Fraction[Total number of sections filled filled with parents] = 2¹/₁₀ section
Step-by-step explanation:
Given:
Total number of sections filled = 3¹/₂ = 7 / 2 sections
Number of fraction parents watching play = 3/5
Find:
Fraction[Total number of sections filled filled with parents]
Computation:
Fraction[Total number of sections filled filled with parents] = Total number of sections filled x Number of fraction parents watching play
Fraction[Total number of sections filled filled with parents] = [7/2] x [3/5]
Fraction[Total number of sections filled filled with parents] = 21 / 10 sections
Fraction[Total number of sections filled filled with parents] = 2¹/₁₀ section
please hbelpppppppppppppppppppppppp quick
Answer:
#1 I believe the answer is 4 and for 2 I believe the answers are 3&4
Write the ratio 4.05 : 1.35 in the format n : 1
Answer:
3
Step-by-step explanation:
1.35n is 4.05
4.05÷1.35 is 3
n is 3
Answer:
3 : 1
Step-by-step explanation:
4.05 : 1.35 can be written as [tex]\frac{4.05}{1.35}[/tex] in fraction.
To write 4.05 : 1.35 in "n : 1" ratio format , you need to make the denominator of the fraction as 1.
Divide both the numerator & denominator of the fraction by 1.35.[tex]=> \frac{4.05 \div 1.35}{1.35 \div 1.35}[/tex]
[tex]=> \frac{3}{1}[/tex]
[tex]=> \boxed{3 : 1}[/tex]
-2x + 9y = 2
4x - 18y = -4
Answer:
6x + 27y = -6
Step-by-step explanation:
i looked it up sooo sorry if its wrong lol
find the 10th term of the geometric sequence 8, -24, 72...
Answer: -157,464
Step-by-step explanation:
an=a^1*r^n-1
a10=8*-3^10-1
a10=8*-3^9
a10=8*-19683
a10=-157464
Answer:
a10 = -157,464
Step-by-step explanation:
a1 = 8
a2 = -24
r = a2/a1 = -3
an = a1 × r^(n - 1)
a10 = a1 × (-3)^(10 - 1)
a10 = 8 × (-3)^(9)
a10 = -157,464
What is 16x + 4y = 12 in slope intercept form
Answer:
y = -4x + 3
Step-by-step explanation:
You just have to solve for y.
So you get only the y value on one side, so the equation would then be
4y = -16x + 12, then you have to solve for y, so you divide both sides of the equation by 4 and you are left with y = -4x + 3
Find the slope of the line?
Answer:
slope = 1/6
Step-by-step explanation:
(-3--4)/1--5)
rise/run
so slope = 1/6
What is EG? Round to the nearest tenth if necessary.
Answer:
26.
Step-by-step explanation:
As the vertex angles are equal:
24/54 = x / x+10
54x = 24x + 240
30x = 240
x = 8
So EG = x + x + 10
= 8 + 8 + 10
= 26..
The number of typing errors on a page follows a Poisson distribution with a mean of 6.3. Find the probability of having exactly six (6) errors on a page.
Answer: 0.1595
Step-by-step explanation:
Poisson Distribution Formula
[tex]$$P(\mathrm{X}=x)=\dfrac{\lambda^{x} e^{-\lambda}}{x !}$$\\\text{ where }$x=0,1,2,3, \ldots$\\\\$\lambda=$ mean number of occurrences in the interval\\\\$e=$ Euler's constant $\approx 2.71828$[/tex]
Here, [tex]\lambda= 6.3[/tex]
x= 6
[tex]P(X=6)=\frac{6.3^6e^{-6.3}}{6!}[/tex]
[tex]\approx0.1595[/tex]
Hence, the probability of having exactly six (6) errors on a page = 0.1595