Answer:
15. A
16. B
17. B
18. C
Step-by-step explanation:
(102)^2-(98)^2
Factories it
[tex]\huge\textsf{Hey there!}[/tex]
[tex]\mathsf{102^2 - 98^2}[/tex]
[tex]\mathsf{102^2}[/tex]
[tex]\mathsf{= 102\times 102}[/tex]
[tex]\boxed{\mathsf{= \bf10,404}}\large\checkmark[/tex]
[tex]\mathsf{\bold{10,404} - 98^2}[/tex]
[tex]\mathsf{98^2}[/tex]
[tex]\mathsf{= 98\times 98}[/tex]
[tex]\boxed{\mathsf{=\bf 9,604}}\large\checkmark[/tex]
[tex]\mathsf{10,404 - \underline{9,604} = \boxed{\bf800}}\large\checkmark[/tex]
[tex]\rightarrow\mathsf{102^2 - 98^2 = \boxed{\bf 800}}\large\checkmark[/tex]
[tex]\boxed{\boxed{\huge\textsf{Answer: \bf 800}}}\huge\checkmark[/tex]
[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Find the value of unknown angles.
Х
50
Answer:
[tex]x = 70^o[/tex]
Step-by-step explanation:
Given
See attachment for triangle
Required
Find x
To solve for x, we make use of:
[tex]x + 50^o + 60^o = 180^o[/tex] --- angles in a triangle
[tex]x + 110^o = 180^o[/tex]
Collect like terms
[tex]x = 180^o-110^o[/tex]
[tex]x = 70^o[/tex]
30 ponts
9x+1-7x=20 what does x equal?
Answer:
[tex]x = 9.5[/tex]
Step-by-step explanation:
Combine like terms
[tex]9x + 1 - 7x = 20 \\ 2x + 1 = 20[/tex]
Now simply solve
[tex]2x + 1 = 20 \\ 2x = 20 - 1 \\ 2x = 19 \\ \frac{2x}{2} = \frac{19}{2} \\ x = 9.5[/tex]
hope this helps you.
true or false? like terms have the same variable and the same exponent.
Vanderbilt University has this data set: 305, 315, 285, 285, 290, 280, 300, 310, 310, 315, 305
The MEAN of this data set is
Answer:
300
Step-by-step explanation:
305
[tex]305 + 305 + 315 + 315 + 285 + 285 + 310 + 310 + 290 + 280 + 300 = 3300 \div 11[/tex]
Suppose you obtain a $3,000 T-note with a 3% annual rate and maturity in 5 years. How much interest will you earn?
8) Solve the system of equations by substitution
y = x + 2
3x + y = 10
Answer:
(2, 4)
Step-by-step explanation:
y = x + 2
3x + y = 10
3x + (x + 2) = 10
4x + 2 = 10
4x = 8
x = 2
y = (2) + 2
y = 4
Step-by-step explanation:
3x + y = 10
substituting the value of y = x + 2
=>3x + x+2 = 10
=>4x= 10-2
=>4x= 8
=>x= 8/4
=>x= 2
And, y= 2+2 = 4
A map has a scale of 2 cm: 11 m. The actual distance x from point A to point B, if these two points are 12
centimeters apart on the map, is
A. 4 m
B. 66 m
C. 12 m
D. 33 m
9514 1404 393
Answer:
B. 66 m
Step-by-step explanation:
Map and ground distances are proportional:
ground/map = ground/(12 cm) = (11 m)/(2 cm)
ground = (12 cm)(11 m/(2 cm)) = 66 m
The distance from A to B is 66 m.
Help !!!!!!!!!!!!!!!!!!!!!!!
Answer:
<ADB = 75 degrees
Step-by-step explanation:
We know, a straight line has an angle of 180 degrees.
A = (180-143) = 37 degrees.
A + C = (37 + 38) = 75 degrees.
The angles of a triangle will always add up to 180 degrees.
<ADC = (180-75) = 105 degrees.
So,
<ADB = (180-105) = 75 degrees.
Hope, this will help. Please mark me brainliest.
Thank you.
Desenați cinci puncte coliniare a b c d e în această ordine așa încât AB egal 5 cm BC egal 5 mm CD egal 15 mm și d egal 0,7 dm
A Aflați lungimile segmentelor ac ad ae bd be ce
B Calculați ac + ce - ae ; ad-bd
C A câta parte din lungimea segmentului AE reprezintă lungimea segmentului ad dar DB
Answer:
me no speak espanol sorry
pls help for number 3!!
Answer:
1820
Step-by-step explanation:
13 x 14 x 10 = 1820
Please mark brainliest
Find the area of a circular pool whose radius is 2 meter.
Answer:
Step-by-step explanation:
area of a circular pool=πr^2
=3.14*(2)^2
=3.14*4
=12.56 m^2
Answer:
12.56 inches squared
Step-by-step explanation:
Radius= 2
Diameter= 4 (double the radius)
Pi= 3.14
Formula for finding area of circle= Pi x r squared
2 x 2= 4 (to find diameter)
4 x 3.14= 12.56
(to find area)
:)
The measure of the angle turns through 1 over 9 of the cicle the angle measure can be found using the expressions
Answer:
1-9 the answer is -8of the circle
Step-by-step explanation:
You roll two six-sided dice numbered from one through six. What is the probability that the sum of the two dice is greater than or equal to six? Round your answer to two decimal places.
Answer:
ok so so here are the numbers equal to 6
1,5
5,1
2,4
4,2
3,3
so five options and there are 36 possible outcomes(6*6)
so 5/36 or 0.14
Hope This Helps!!!
The solution is, the probability that the sum of the two dice is greater than or equal to six is 0.14.
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we get,
You roll two six-sided dice numbered from one through six.
so here are the numbers equal to 6
1,5
5,1
2,4
4,2
3,3
so five options and there are 36 possible outcomes(6*6)
we get, sample space = 36
favorable outcome = 5
probability = 5/36
so 5/36 or 0.14
To learn more on probability click:
brainly.com/question/11234923
#SPJ2
Rachael bought a snorkel and ear plugs for shallow diving. The snorkel cost $28.96, and the ear plugs cost $2.56. The sales tax of both items is 5%. How much did she pay in total?
Answer:
$33.10
Step-by-step explanation:
$28.96 + $2.56 = $31.52
$31.52 * .05 = $1.576 (round up) $1.58
$31.52 + $1.58 = $33.10
Answer:
Step-by-step explanation:
Total without sales tax
Snorkel = 28.96
Ear Plugs 2.56
Total 31.52
Sales tax = 5% of Total = 5/100 *31.52
Sales tax = 1.58 Rounded.
Total purchase = 33.10
PLEASE HELP ME!! IF ANYONE IS THERE COMNE ON 10 POINTS!!
Geometry
The two legs squared could equal the hypotenuse, c.
(a and b could be either 36 or 15, there's not a way to confirm which is which)
[tex]a^{2} + {b}^{2} = {c}^{2} [/tex]
15^2+36^2=c^2
225+1296=c^2
√1521=√c^2
c=39
The systolic blood pressure (BP) of adults in the USA is nearly normally distributed with a mean of 121 and standard deviation of 16 . Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. (a) Around what percentage of adults in the USA have stage 2 high blood pressure
Answer:
Around 0.73% of adults in the USA have stage 2 high blood pressure
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 of 121 and standard deviation of 16.
This means that [tex]\mu = 121, \sigma = 16[/tex]
Around what percentage of adults in the USA have stage 2 high blood pressure
The proportion is 1 subtracted by the p-value of Z when X = 160. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{160 - 121}{16}[/tex]
[tex]Z = 2.44[/tex]
[tex]Z = 2.44[/tex] has a p-value of 0.9927.
1 - 0.9927 = 0.0073
0.0073*100% = 0.73%
Around 0.73% of adults in the USA have stage 2 high blood pressure
Choose the best answer. If necessary, Question 12,9,16,1, 6,5, 84 What is the median of the data set shown?
Answer:
The median of this problem is 9
13. Write an equation in slope-intercept form of the line that passes through the points (4.2) and (1.-7).
Answer:
The answer is [tex]y=3x-10[/tex]
Step-by-step explanation:
You use the formula [tex]y_{2} -y_{1} /x_{2} -x_{1}[/tex]
Which will give you 3. So the slope is 3/
Then you continue with the equation- [tex]y=mx+b[/tex] (m represents the slope which is 3) We use then use any point but I used (4,2) to plug into the equation.
After using that equation, you get the y-intercept as -10. So, the equation is [tex]y=3x-10[/tex]
Karly buys a model car for $64. Then she spends 2 times as much on supplies to build the model car. How much does Karly spend altogether?
Answer:
192
Step-by-step explanation:
Supplies = 2 model cost
= 2*64 = 128
Total cost = model + supplies
= 64 + 128
=192
You are interested in getting an investment portfolio started with any extra money you make from your part time job while also going to school. While flipping through the latest edition of Money magazine, you read an article that of a survey of magazine subscribers, 164 were randomly selected and analyzed. A 95% confidence interval was constructed for the proportion of all subscribers who made money in the previous year in their investments, which was ( 0.6904 , 0.8218 ). What is the correct interpretation of this confidence interval
Answer:
We are 95% confident that the proportion of all Money magazine subscribers that made money in the previous year from their investments is between 0.6904 and 0.8218
Step-by-step explanation:
The confidence interval gives a range of values for which a population proportion will fall based on a given level of confidence, in this case it is 95%. This interval is calculated using the sample proportion. The sample proportion in this case is based on a number of samples examined. The interval we obtain in this case (0.6904; 0.8218) is the estimated range which we expect the population proportion to fall ; with a 95% confidence.
3. write an equation of the circle whose center is (-5,2) and whose radius length is 4 express your answer in standard form. I NEED MY WORK TO BE SHOWN PLEASE HURRY I AM BEING TIMED!!!!!
is 0.2777775 an irrational number?
Answer:
an irational number is a number that can't be represented as a fraction but
0.2777775 can be represented as the fraction
111111 /400000
so no its not
Hope This Helps!!!
Use the Normal model N(1112,56) for the weights of steers.
a) What weight represents the 66th percentile?
b) What weight represents the 94th percentile?
a) The weight representing the 66th percentile is pounds.
(Round to the nearest whole number as needed.)
b) The weight representing the 94th percentile is pounds.
(Round to the nearest whole number as needed.)
Answer:
See below for answers
Step-by-step explanation:
a) invNorm(0.66,1112,56) = 1153.097936 ≈ 1153 lbs
b) invNorm(0.94,1152,56) = 1199.067321 ≈ 1199 lbs
solve all for brainiest
Answer:
a =55
b =16
c = 25
d = 9
Step-by-step explanation:
of means multiply is means equals
20% of a is 11
.20 a = 11
Divide by .20
a = 11/.20
a=55
75% of b is 12
.75 b =12
Divide by .75
b = 12/.75
b = 16
80% of c is 20
.80 c =20
Divide by .80
c = 20/.80
c =25
200% of d is 18
2.00 d = 18
Divide by 2.0
d = 18/2
d =9
If f(x) = -x2 + 6x, what is f(-3)?A) -162 B) -27 C) -9 D) 9
Answer:
-27
Step-by-step explanation:
f(x) = -x^2 + 6x
Let x = -3
f(-3) = -(-3)^2 + 6(-3)
= -9 - 18
-27
Answer:
f(3)= -9
Step-by-step explanation:
F(x)=-x2+6x
f(3)=--3^2+6.-3
f(3)=9+-18
f(3)=-9
6th work. What measure of Central tendency is calculated by adding all the values and diving the sum by the number of values
A) Median
B) Mean
C) Mode
D) Range
I’ll give brainliest if answered right
Answer:
The answer is D.Kidney beans
Step-by-step explanation:
$6 for 5 pounds
6÷5=1.2
Answer:
option D
Step-by-step explanation:
Kidney bean :
[tex]\frac{6}{5} = 1.20[/tex]
Black bean:
[tex]\frac{5}{5} = 1[/tex]
Pinto :
[tex]\frac{4}{7} = 0.57[/tex]
Garbanzo :
[tex]\frac{3}{6} = 0.50[/tex]
Find the distance between the points (15,-6) and (10,3). I need to show my work PLEASE HURRY 15 points CORRECT ANSWERS ONLY PLEASE
Step-by-step explanation:
d = √(15-10)²+(-6-3)²
=√5²+(-9)²
= √25+81
=√106
10.3 units
Susan made $208 miles in 13 hours. At the same rate, how many hours would she have to work to make $114