Answers
let the unknown answer be equal to f
.-2.1 - f = -3/2
-f = -3/2 + 2.1
-f = 0.6
f = -0.6
Answer:
0.6
Step-by-step explanation:
-1 1/2 + 2.1 = 0.6
Related Questions
On 15th January, the temperature at place is 20°C. The temperature drops 3 ° each day for 10 days. What is the temperature after the drop
Answers
Answer:
3⁰ peach day means 3×10=30+20=50⁰C
Can someone help Find the surface area
Answers
Answer:
1861.39 cm²
Step-by-step explanation:
Given:
d = 15 cm
radius (r) = ½(15) = 7.5 cm
Height = 32 cm
Surface area of a cylinder = 2πrh + 2πr²
Plug in the values
Surface area = 2*π*7.5*32 + 2*π*7.5²
= 1861.39 cm²
ANSWER ASAP WILL MARK BRAINLIEST
Answers
Answer: A
Step-by-step explanation:
7. A particular compound decays according to the equation y = ae-0.0736t, where tis in days. Find the
half-life of this compound.
a. about 9.1 days b. about 9.4 days
c. about 6.8 days d. about 7.4 days
Answers
Answer:
b. about 9.4 days
Step-by-step explanation:
Amount of the compound:
The amount of the compound after t days is given by the following equation:
[tex]y(t) = ae^{-0.0736t}[/tex]
The initial amount is:
[tex]y(0) = a[/tex]
Half-life:
t for which [tex]y(t) = 0.5a[/tex]. So
[tex]y(t) = ae^{-0.0736t}[/tex]
[tex]0.5a = ae^{-0.0736t}[/tex]
[tex]e^{-0.0736t} = 0.5[/tex]
[tex]\ln{e^{-0.0736t}} = \ln{0.5}[/tex]
[tex]-0.0736t = \ln{0.5}[/tex]
[tex]t = -\frac{\ln{0.5}}{0.0736}[/tex]
[tex]t = 9.42[/tex]
So about 9.4 days, and the answer is given by option b.
An article included a summary of findings regarding the use of SAT I scores, SAT II scores, and high school grade point average (GPA) to predict first-year college GPA. The article states that "among these, SAT II scores are the best predictor, explaining 17 percent of the variance in first-year college grades. GPA was second at 15.6 percent, and SAT I was last at 13.3 percent." If the data from this study were used to fit a least squares line with y = first-year college GPA and x = high school GPA, what would the value of r2 have been?
Answers
Answer:
0.156
Step-by-step explanation:
Given that :
% of Explained variance by certain predictors of first year college grade :
SAT 11 scores = 17%
GPA = 15.6%
SAT 1 = 13.3%
Fitting a least squares line :
y = First year college GPA
x = high school GPA
THE r² value which is Coefficient of determination is the percentage of explained variance given by the regression line. The r² value of GPA will the as given above 15.6%
r² = 15.6% = 15.6/100 = 0.156
I’ll mark brainlest
Answers
Answer:
2, 4
Step-by-step explanation:
What is the area of the figure? Round to the nearest tenth.
8 in.
12 in.
A. 48.0 in.2
B. 62.0 in 2
C. 24.0 in.2
D. 96.0 in 2
O
Answers
Answer:
If the length and width are 8 and 12 than the area is 96. (D)
Step-by-step explanation:
Area is length x width.
12 x 8 = 96
Therefore, the area is 96.0 inches.
Which function's graph has x-intercepts at x = - 2 and x = 4 , and a vertex at point (1, - 18) ?
Answers
Answer: (x+2)(2x-8)
if you let x = 1 it give h(x) = -18
BRANLIEST TO CORRECT PERSON.. plss help!
Answers
Answer:
C
Step-by-step explanation:
When the expression has an equal sign there is only one solution
6x = 150
* divide each side by 6 *
6x / 6 = x
150 / 6 = 25
we're left with x = 25
The answer would be C, because the dot is in between 24 and 26 which would be 25 and x equals 25
(3-(-4)x)2 when x is = 3
Algebra
Class: 6
Answers
Answer:
5
Step-by-step explanation:
//////////////////////////////////////
so it would be (3-(-4)3)2
then you solve
the answer is 30
what does it mean if your gf constantly sends you pics of her she keeps sending pics to me
Answers
Answer:
She probably wants attention from you maybe compliment her outfit or something like that.
HELP ME PLWASE I WILL GIVE ALL POINTS.
What value of x makes this equation true?
0.6x + 7 = 0.1x -8
Answers
Answer:
-30
Step-by-step explanation:
0.6x+7=0.1x-8
0.6x-0.1x=-8-7
0.5x=-15
x=-15/0.5
x=-30
A contestant on the Cash Show just answer a trivia question correctly. This question had 5 multiple choice answers. It is estimated that 10% of the general population know the correct answer to this question. What is the probability that contestant knew the answer rather than guessed it
Answers
Answer:
10% probability that contestant knew the answer rather than guessed it
Step-by-step explanation:
Since it is estimated that 10% of the general population know the correct answer to this question, for each contestant, there is a 10% probability that he knew the answer rather than guessing.
So the answer is 10% probability that contestant knew the answer rather than guessed it
100 points What is the value of this question ? please help fastttt !!!!!!!!!!!!!!!
Answers
Answer:-5
Step-by-step explanation:
What are m∠1 and m∠2?
Answers
Answer:
Angle 1 = 35
Angle 2 = 30
Answer B
Step-by-step explanation:
Angle 1)
You know the total angles in a triangle are 180
You also know that the angle across from 1, next to 115 has to be 180-115 (65) or , this gives you
180-80-(180-115)= 35
Angle 2 )
You know the total angles in a triangle are 180
You also know that the angle across from 85, next to 115 is the same value 65 as it was for the calculation of angle 1.
so this means
180-85-65 = 30
State if the two triangles are congruent. If they are state how you know.
Answers
Answer:
ASA
Step-by-step explanation:
They are congruent by the ASA congruency.
The supply function for a product is given by p = 40 + 100 underroot 2x + 9, where x is the number of units supplied and p is the price in dollars. If the price is increasing at a rate of $1 per month, at what rate is the supply changing when x = 20?
Answers
the supply changing when x=20 is 40
jonathan is baking a batch of cookies. The recipe calls for 1/2 cup of butter and 3/4 cup of sugar.he used 1 cup of butter.Using the proportions,how much sugar will he need to use?
Answers
Answer:
Is this the full question?
Hi ^^
--------------------
A recipe calls for 3/4 cup of sugar and 2/3 cup of butter, so the sugar to butter ratio is (3/4)/(2/3) = (3/4)(3/2) = 9/8. This ratio implies that 1 cup of butter requires 9/8 cups of sugar.
Since you use 1½ = 3/2 cups of butter, you will need
(3/2)(9/8) = 27/16 cups of sugar.
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anyways hope that helped, bye! <3
janine rented an aprtment for 900 a month after a 1year she bought a house
Answers
Answer: what’s the question
?
Step-by-step explanation:
A video store's regular price of a video is $25.95, and
it's on sale for 25% off. What is the sale price of the video?
A) $19.46
B) $25.75
C) $6.49
D) $32.44
Answers
Answer:6.49
Step-by-step explanation:Discount = Original Price x Discount %/100
Discount = 25.95 × 25/100
Discount = 25.95 x 0.25
You save = $6.49
Which value from the set {3,10,90,108} will make the equation 3x + 3 = 33 true ?
Answers
Answer:
[tex]x = 10[/tex] will make the equation true
Step-by-step explanation:
Given
[tex]\{3,10,90,108\}[/tex]
[tex]3x +3= 33[/tex]
Required
Which is true for x
We have:
[tex]3x +3= 33[/tex]
Collect like terms
[tex]3x= 33 - 3[/tex]
[tex]3x= 30[/tex]
Solve for x
[tex]x = 30/3[/tex]
[tex]x = 10[/tex]
Solve for the value of
b
b.
(3b+2)°
(7b-2)
Answers
Step-by-step explanation:
here is the answer click the photo
The black triangles are similar. Find the value of x.
No links please!!
Answers
9514 1404 393
Answer:
16
Step-by-step explanation:
The altitude of the triangle is 12/21 = 4/7 of the marked side. If we assume that the marked sides are the ones that are corresponding, then ...
x = (4/7)(28)
x = 16
Answer:
Two ships are docked 328.51 m apart.
What will be the distance, in kilometres, covered by Steven who did 10 laps between
the ships?
Answer:
Answers
Answer:
0.32851 Kilometers i think
Step-by-step explanation:
A rectangular prism has a length of 9 inches, a height of 5 inches, and a width of 7
inches. What is its volume, in cubic inches?
Answers
Answer:
315 cubic inches
Step-by-step explanation:
To calculate the volume you multiply all the numbers together.
9 × 7 × 5 = 315
The volume of the rectangular prism is 315 cubic inches
Have a wonderful day! :D
© Write a Pythagorean triplet
whose
one member is 50
Answers
Answer:
Thus the required Pythagorean triplet is 14,48,50. ∴ The required Pythagorean triplet is 16,63,65.
Step-by-step explanation:
You are curious why some apartments in West Campus cost more to rent than others. So you sample 30 one-bedroom apartments from across different West Campus apartment buildings and record the monthly rent (in dollars), along with the following explanatory variables: Area - square feet of living space in the apartment Age - how many years old the building that contains the apartment is Parking - whether or not the apartment comes with a parking space You ran a linear regression model predicting monthly rent and including the main effects of all three explanatory variables.
Required:
What is the population of interest for this study?
Answers
Answer:
the monthly rents of the apartments
Step-by-step explanation:
In the field of statistics, the population of interest may be defined as the group or the population from which the experimenter or the researcher tries to make conclusions or draw their results.
In the context, I am interested to study the cost of the rented house that is more than others in the West Campus area.
So I recorded the monthly rents of the apartments from a sample of 30 one bedroom apartments.
Therefore, the population of interest for my study here is the monthly rents recorded from the sample of one bedroom apartments.
Recall that Daniel's taxable income is $33,914. According to the single taxable income tax brackets for 2018, the amount of income tax that Daniel owes is____
A)$3,391.40
B)$3,501.16
C)$3,653.14
D)$3,879.18
E)$4,069.69
Answers
Answer: E. $4,069.69
Step-by-step explanation:
For individuals who have an income that's between $9,526 to $38,700, their tax rate is 12%.
Therefore, since Daniel's taxable income is $33,914. According to the single taxable income tax brackets for 2018, the amount of income tax that Daniel owes will be:
= 12% × $33,914
= 12/100 × $33,914
= 0.12 × $33,914
= $4,069.69
Answer: D)$3,879.18
Step-by-step explanation:
Teacher told me
HELLO CAN SOMEONE HELP ME IM FAILING MATH NO FAKE ANSWERS PLS TY :)
Answers
Answer:
Area of rectangle = 10 units²
Area of triangle = 10 units²
Area of figure = 20 units²
Step-by-step explanation:
PLEASE HELP WITH THE PROBLEM ON THE ATTACHED FILE
Answers
Step-by-step explanation:
First u have to do the work of bracket and the solve