What is the image of (-1,-5) after a dilation by a scale factor of 5 centered at the
origin?
Answers
A dilation by a scale factor of 5 centered at the origin simply multplies by 5 the coordinates of every point. So, the new coordinates are (-5, -25)
Related Questions
express 25 as a power with base 5
Answers
Answer: 5
Step-by-step explanation:
Answer:
5^2 or 5 to the power of 2
Step-by-step explanation:
5x5=25
Determine the next three terms in the following sequence: -1, 1/2, - 1/4, 1/8
Answers
Answer:
-1/16, 1/32, and -1/64.
Step-by-step explanation:
Basically, all you have to do is find the pattern in the sequence in front, which in this case is division by -2. Hence, you can apply this onwards to get (1/8) / -2 = -1/16, (-1/16) / -2 = 1/32, and (1/32) / -2 = -1/64.
Hope this helped! Merry Christmas!
For the following equation, complete the given ordered pairs.
3x + y = 10 (__, 1), (2, __)
A.
(10, 1), (2, 12)
B.
(0, 1), (2, 3)
C.
(3, 1), (2, 4)
D.
(2, 1), (2, 5)
PLEASE HELP ME!!!!!!!!
Answers
Answer:
C. (3,1) (2,4)
see attached
I am having trouble with these two questions . 1) -2+x= -x+2
2) 2+3x=x+7
Answers
Answer:
1)x=2. 2)x=5/2
Step-by-step explanation:
Steps in pic below
Ricky spends $103. 19 in additional interest and charges on monthly payments as the result of a prior bankruptcy. If Ricky had been able to save this money for one year and then put it into a savings account earning 3.1% simple interest, how much money could he have in savings after two more years?
a $1,238.28
b. $1,276.67
c. $1,315.06
d. $2,476.56
Answers
Answer:
C. 1,315.06
Step-by-step explanation:
................
A group of researchers wants to know whether men are more likely than women to contract a novel coronavirus. They surveyed two random samples of 390 men and 360 women who were tested and found that 47 men and 52 women in the samples tested positive. Can you conclude that the proportion of positive tests among men is different from the proportion of positive tests among women? Use level of significance 10%. Procedure: Two means T (pooled) Hypothesis Test Step 1. Hypotheses Set-Up: H 0 : Select an answer = , where Select an answer the Select an answer and the units are Select an answer H a : Select an answer ? , and the test is Select an answer Step 2. The significance level α = % Step 3. Compute the value of the test statistic: Select an answer = (Round the answer to 3 decimal places) Step 4. Testing Procedure: (Round the answers to 3 decimal places) CVA PVA Provide the critical value(s) for the Rejection Region: Compute the P-value of the test statistic: left CV is and right CV is P-value is Step 5. Decision: CVA PVA Is the test statistic in the rejection region? Is the P-value less than the significance level? ? ? Conclusion: Select an answer Step 6. Interpretation: At 10% significance level we Select an answer have sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis.
Answers
Answer:
Test statistic Z= 0.13008 < 1.96 at 0.10 level of significance
null hypothesis is accepted
There is no difference proportion of positive tests among men is different from the proportion of positive tests among women
Step-by-step explanation:
Step(I):-
Given surveyed two random samples of 390 men and 360 women who were tested
first sample proportion
[tex]p_{1} = \frac{360}{390} = 0.9230[/tex]
second sample proportion
[tex]p_{2} = \frac{47}{52} = 0.9038[/tex]
Step(ii):-
Null hypothesis : H₀ : There is no difference proportion of positive tests among men is different from the proportion of positive tests among women
Alternative Hypothesis:-
There is difference between proportion of positive tests among men is different from the proportion of positive tests among women
[tex]Z = \frac{p_{1}- p_{2} }{\sqrt{PQ(\frac{1}{n_{1} }+\frac{1}{n_{2} } } }[/tex]
where
[tex]P = \frac{n_{1}p_{1} +n_{2} p_{2} }{n_{1}+n_{2} }[/tex]
P = 0.920
[tex]Z= \frac{0.9230-0.9038}{\sqrt{0.920 X0.08(\frac{1}{390}+\frac{1}{52} } )}[/tex]
Test statistic Z = 0.13008
Level of significance = 0.10
The critical value Z₀.₁₀ = 1.645
Test statistic Z=0.13008 < 1.645 at 0.1 level of significance
Null hypothesis is accepted
There is no difference proportion of positive tests among men is different from the proportion of positive tests among women
Angie divides the polynomial function f(x)=x3+3x2−7x−21 by (x + 3). What can she conclude from the fact that the remainder is equal to 0?
Answers
Answer:
See below
Step-by-step explanation:
Given function
f(x)=x³ + 3x²- 7x - 21We can find its factors:
x³ + 3x² - 7x - 21 =x²(x + 3) - 7(x + 3) =(x² - 7)(x + 3)We can conclude that the given polynomial function is fully divisible by (x + 3) and the quotient is (x² - 7)
Also one of zeros of the function is -3
Find the slope of the line passing through the points (9, - 4) an
(5,6)
Answers
Answer:
-5/2
Step-by-step explanation:
(9,-4) and (5,6)
Slope = y2-y1/x2-x1
(6-(-4)/5-9
10/-4
-5/2
Hope this helps!
Find f(-3) of the function below
F(x)=2x^3-9x^2-5x
Answers
Answer:
your answer is -120
Step-By-Step Explanation:
2(-3)^3 - 9(-3)^2 -5(-3)
2 (-27) - 9(9) +15
-54 -81 +15
-135 +15
-120
i hope this helps :)
Answer: -120
Hope this helps :)
VY=27. VZ = 18, and Ww=8, find WX
Х
W
Z
Answers
Answer:
D. 4
Step-by-step explanation:
∆VWZ ~ ∆VXY, therefore:
[tex] \frac{VW}{VX} = \frac{VZ}{VY} [/tex]
VW = 8
VX = 8 + WX
VZ = 18
VY = 27
Plug in the values
[tex] \frac{8}{8 + WX} = \frac{18}{27} [/tex]
Cross multiply
[tex] 8 * 27 = (8 + WX)*18 [/tex]
[tex] 216 = 144 + 18WX [/tex]
Subtract 144 from each side
[tex] 72 = 18WX [/tex]
Divide both sides by 18
[tex] 4 = WX [/tex]
WX = 4
calculate the slope of the line
Answers
Answer:
-5/4 or -1.25
Step-by-step explanation:
the points are (-6, -3) and (-2, -8)
the formula for slope is y2-y1/x2-x1
y2 is -8
y1 is -3
x2 is -2
x1 is -6
(-8+3)/(-2+6)
(-5)/(4)
-5/4 or -1.25
Translate the product of 8 and the quotient of 6 and x into an algebraic expression
Answers
Answer:
3 x
x + y
Step-by-step explanation:
(think about it with a horizontal line between the two numbers)
When using fractions and whole numbers turn the whole numbers into fractions like ---> 3/1
and if their like 3 5/6 (for example) you would multiply the denominator by the whole number ---> 3*6=18 then add what's on the numerator with it. so 18+5=23 which would make it 23/6
Just some tips for making it easier!
Hope it helps! :)
tor. Factor each expression. 2x + 8
Answers
Answer:
The factorized form of 2x + 8 is 2(x+4).
Step-by-step explanation:
Given the expression
2x + 8Let us factorize the expression
2x + 8
Rewrite 8 as 2·4
[tex]2x\:+\:8=2x+2\cdot \:\:4[/tex]
Factor out common term 2
= 2(x+4)
Therefore, factorized form of 2x + 8 is 2(x+4).
Question 4
Which equation has a graph perpendicular to the graph 3y = 2x - 9?
3x + 2y = 7
2x + 3y = 4
y = 2/3x - 1
y = 2x + 5
Answers
Answer:
slope of the line 3y = 2x - 9 , m = 2/3
therefore slope of line perpendicular to given line
m2 = -1/m1 = -3/2
then the general equation of line with slope -3/2 is given by
y = -3/2 ( x ) + c
where c = y-intercept which can be found when more data is provided
The graph of f^ prime is shown. Find and sketch the graph of f given that fis continuous and f(0) = 1 .
(#72 in the pic)
Answers
9514 1404 393
Answer:
see attached (blue line)
Step-by-step explanation:
The slope in the first interval (0 to 2) will be -1, down from the y-intercept of 1.
The slope in the second interval will be 2. After that, the slope is zero, so the graph is a horizontal line.
The blue line in the attached is the graph of f(x).
Name an equivalent ratio for with a denominator of 8.
Please select the best answer from the choices provided
A: 4/8
B: 1/8
C: 5/8
D: 3/8
Answers
Answer:
(A)
Step-by-step explanation:
4+4=8,4/8 is an equalivent ratio. So the best answer would be A!
Hope this helps:)!
-3(x + 6) idk what the answer is.
Answers
Answer:
-3x-18
Step-by-step explanation:
-3(x+6)
-3x-3x x 6
-3x-18
Question 5(Multiple Choice Worth 4 points)
PLZZ help!
on a coordinate grid, both point (1, 2) and point (−3, −3) are reflected across the y-axis. What are the coordinates of the reflected points?
(−1, 2) and (3, −3)
(−1, −2) and (3, 3)
(1, −2) and (−3, 3)
(1, 2) and (3, 3)
Answers
Answer:
The first option (a) is correct
Step-by-step explanation:
1) 2 + 24 + 40 + 39- (33 - 30)
=
Answers
Answer:
102
Step-by-step explanation:
hope this helps
Answer:
2+24+40+39-(33-30)
105-33+30
135-33
132
-34 > -10 + 4x
Help ASAP
Answers
Step-by-step explanation:
-34 > -10 + 4x
-24 > 4x
x < -6.
Answer:
Hope it will help u plz brain-list the answer
Step-by-step explanation:
-34 > -10 + 4x
by transitive property of in-equality we get,
-10+4x<-34
4x<-34+10 ( adding 10 to both sides
4x<-24
x<-24/4 ( dividing 4 to both sides
x<-6 AnsWhat are the measures of center?
Answers
Answer:
Mean, mode,median and mid-point seem to be the basic measurements of center.
Step-by-step explanation:
A central propensity measure (center measure) is a measure that seeks to characterize a data set by defining the data set's central location.
Help please giving brainliest!!
Answers
Answer:
Step-by-step explanation:
-1 = -3x + 5
add 3x on both sides
3x - 1 = 5
add 1 on both sides
3x = 6
divide both sides by 3 to get x by itself
x = 2
ANYBODY KNOW THIS????
Answers
Answer:
The length of BD equals 7.4
Step-by-step explanation:
We can use the pythagorean theorem to solve this.
This is the pythagorean theorem:
[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]
Let's solve.
[tex] {a}^{2} + {b}^{2} = {c}^{2} \\ {a}^{2} + {3}^{2} = {8}^{2} \\ {a}^{2} + {9} = {64} \\ \frac{ \: \: \: \: \: \: - 9 = - 9}{ {a}^{2} = \sqrt{55} } \\ a = 7.4[/tex]
Therefore, The length of BD = 7.4.
a philanthropist deposits 2,000$, in a trust fund that pays 6.0%interest , compunded continuously. The balance given to the college from which the has earned interest for 20 years. How much will the college receive? round to the nearest tenth
Answers
Answer:
$6414
Step-by-step explanation:
Step one
given
Principal=$2,000
rate= 6%= 0.06
Time= 20 years
Required
The final amount.
Step two:
The compound interest formula is
A= P(1+r)^t
substituting we have
[tex]A=2000(1+0.06)^2^0\\\\ A= 2000(1.06)^2^0\\\\ A=2000*3.207\\\\A=6414[/tex]
The amount given to the college is $6414
Identify the pattern for the following sequence. Find the next three terms in the sequence.
-15, -11, -7, -3 ____, _____, _____,...
A: Subtract 4; -7, -11, -15
B: Add 4; 2, 6, 10
C: Subtract 4; 1, 5, 9
D: Add 4; 1, 5, 9
Answers
Answer:
D: Add 4; 1, 5, 9
Step-by-step explanation:
Firstly, we can look at the preceding sequence: -15, -11, -7, and -3. It's pretty much impossible to be subtract 4, since -15 - 4 = -19, and it only goes downhill from there, deviating from the original sequence. Hence, the front sequence should be following the pattern of add 4.
Now, to decide between B and D, all you have to do is add 4 to the last term of the sequence to continue it. In this case, that would be -3 + 4 = 4 - 3 = 1. Hence, we can instantly identify the correct option is D: Add 4; 1, 5, 9.
Hope this helped!
Answer:
D is the answer: 4, 1, 5, 9
Step-by-step explanation:
Select all the expressions that could be used to find the area of a running track
that is 1,243 feet long and 8 feet wide.
A. 1,243 + 8
B. 8 × 1,243
C. 8 + (1,000 + 200 + 40 + 3)
D. 8 × (1,000 + 200 + 40 + 3)
E. (8 × 1,000) + (8 × 200) + (8 × 40) + (8 × 3)
Answers
Answer: B,D,E
Step-by-step explanation:
Everyone that is multiplying 1243 by 8
Which of the following is true about the expression below?
9 * 1/4
O It represents the product of two rational numbers and is equivalent to a rational number.
O It represents the product of two rational numbers and is equivalent to an irrational number
O It represents the product of a rational and an irrational number and is equivalent to a rational number
O It represents the product of a rational and an irrational number and is equivalent to an irrational number
Answers
The first one
Explanation:
9 and 1/4 are both rational numbers (which are numbers that can be represented in a fraction; 9 can be represented as 9/1)
And since it equals to 9/4 (or 2 1/4) the product is also a rational number.
Kathleen and Antonio hung out at the mall on Saturday. They spent 1 hour and 15 minutes shopping for clothes and 1 hour and 30 minutes at the food court. Then they spent 2 hours at the video arcade before heading home. If it was 11:00 A.M. when Kathleen and Antonio started shopping for clothes, what time was it when they left the mall?
Please help me fast!!!!!
Answers
Answer and Step-by-step explanation:
*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^
First, we should list all the information that is given to us.
Started at: 11:00 AM
Time spent shopping: 1 hour and 15 minutes
The spent in food court: 1 hour and 30 minutes
Time spent in video arcade: 2 hours
Now, all we have to do is add the times.
11:00 AM + 1 hour and 15 minutes = 12:15 PM
12:15 PM + 1 hour and 30 minutes = 1:45 PM
1:45 PM + 2 hours = 3:45 PM
So, Kathleen and Antonio left the mall at 3:45 pm.
*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^
#teamtrees #WAP (Water And Plant)
The user manual for Layla’s phone notes that the device can be damaged when operated at temperatures below -20°C and above 45°C. Layla wants to know what these ranges are in degrees Fahrenheit and writes these inequalities to rewrite the relationship where F is degrees Fahrenheit.
5/9 (f - 32) 45
Which statement best describes the temperature ranges Layla should avoid while using her phone?
A.Layla should avoid using her phone in temperatures below -4°F and above 113°F.
B.Layla should avoid using her phone in temperatures above 21°F and below 57°F.
C.Layla should avoid using her phone in temperatures below 21°F and above 57°F.
D.Layla should avoid using her phone in temperatures above -4°F and below 113°F.
Answers
Layla should avoid using her phone in temperatures below -4°F
and above 113°F.
Do subtraction with monetory values.
$49.68 -$7.89=?
Answers
Answer:
U have $41.79 left i hope it is helpful have a nice day and merry Christmas
if you have $49.68 to spend and buy a $7.89 gingerbread set, you'll have 1 amazing gingerbread house.