Answer:
f(x) = -3 when x = -1
Step-by-step explanation:
Let's go through this!
So our equation is f(x) = 2x - 1
we are asked for the value of f(x) when x = -1
Let's consider this, the f(x) value is the y value
and the x value in f(x) is the x value
So when x = -1
what is the y value?
we can use the equation to subsitute -1 into x and solve for f(x)
f(x) = 2(-1)-1
f(x) = -3
Our answer is -3
In ΔRST, r = 850 cm, s = 250 cm and t=940 cm. Find the measure of ∠S to the nearest 10th of a degree.
Answer:
∠s=15.0 *
Step-by-step explanation:
PLEASE HELP
Given f(x) = x^2 – 5x + k, and the remainder when f(x) is
divided by x - 7 is 34, then what is the value of k?
Step-by-step explanation:
f(7) = 34
7² -5(7) +k = 34
49-35+k =34
14+k = 34
k = 34-14
k = 20
__________
[tex] \: [/tex]
f(x) = x² - 5x + k
f(7) = 34
Soo :
f(7) = 34
(7)² - 5(7) + k = 34
49 - 35 + k = 34
14 + k = 34
k = 34 - 14
k = 20✔
What is the value of 3/8 X -4.5 when X= 0.4
Answer:
-4.35
Step-by-step explanation:
3/8 X -4.5
3/8 (0.4) - 4.5
0.15 - 4.5
= -4.35
Answer:
-4.35
Step-by-step explanation:
You multiply three eights times .4 which gives you .15, then you subtract that from 4.5 which gives you 4.35
(10x-18) (8x+14) value of x
Answer: 80 x^3 - 4x^2- 252x
Step-by-step explanation:
Answer:
80^2 − 4 − 252
Step-by-step explanation:
in pic
(Credit: Symbolab)
(hope this helps can I pls have brainlist (crown)☺️)
if there is not enough evidence to support the alternative hypothesis, we can accept the null hypothesis. true or false?
Answer:
true
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
That is the definition of null hypothesis, when there is not enough information to support a hypothesis, we can accept a null hypothesis.
write the equation of a line with slope 2 and y-intercept -1. y=
Answer:
y = 2x - 1
Step-by-step explanation:
Decimal form of...
1.6/8
2.23/46
3.2/5
4.1/3
5.23/99
(pls understand the question)
(￣▽￣*)ゞ
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Solution ~
Question : 1
[tex] \dfrac{6}{8} [/tex][tex] \dfrac{3}{4} [/tex][tex]0.75[/tex]Question : 2
[tex] \dfrac{23}{46} [/tex][tex] \dfrac{1}{2} [/tex][tex]0.5[/tex]Question : 3
[tex] \dfrac{2}{5} [/tex][tex]0.4[/tex]Question : 4
[tex] \dfrac{1}{3} [/tex][tex] 0. \bar3[/tex]3 is repeating after decimal.
Question 5 :
[tex] \dfrac{23}{99} [/tex][tex]0. \bar2 \bar3[/tex]23 is repeating after decimal.
A set of four stars form the shape of a rectangle in space. The length of the rectangle is approximately 510,000,000 miles, while the width of the rectangle is approximately 366,000,000 miles. What is the approximate area of the rectangle?
Answer:
The answer is 89
Step-by-step explanation:
I hope you have a great day and please mark me bye(:
Answer: 98873
Step-by-step explanation:
Stella and Hazel are the two fastest typists in their computer class. Last week, they had a competition to see whose typing speed was greater.
The table below shows the number of words Stella typed in x minutes during the competition.
Stella's Typing Speed
Time
(minutes) Words
Typed
2 112
4 224
6 336
8 448
The equation below represents the number of words Hazel typed in x minutes during the competition.
Which of the following is true?
A.
Stella typed more words per minute than Hazel during the competition.
B.
There is not enough information to determine the number of words typed per minute during the competition.
C.
Stella and Hazel typed the same number of words per minute during the competition.
D.
Hazel typed more words per minute than Stella during the competition.
Answer:
b
Step-by-step explanation:
You deposit $6500 in a savings account that has a rate of 9%. The interest is
compounded semiannually. How much money will you have after fifteen years?
Round to the nearest cent.
Answer:601.85
Step-by-step explanation:
a line has a slope =6 and passes through the point (3,7). write the equation from point slope form to standard form.
Answer:
[tex]y = mx + c [/tex]
[tex]7 = 6 \times 3 + c[/tex]
[tex]7 = 18 + c[/tex]
[tex]7 - 18 = 18 - 18 + c[/tex]
[tex] - 11 = c[/tex]
[tex]y = 6x + - 11[/tex]
[tex]y = 6x - 11[/tex]
PLEASE HELP ASAPPP!!!!!
1/ A submarine dives to 560 meters below water level, it then dives a further 750 metres to take more deep sea pictures. What is the total dive depth?
Janna wants to measure the height of a cliff. She finds that the shadow of the cliff is 48 meters. If Janna is 1.63 meters tall and her own shadow is measured as 2.38
meters, how many meters tall is the cliff? (Round your answer to two decimal places)
Answer:
Step-by-step explanation:
Find the difference between (4, -2) and (-2, 3) THE ANSWER IS 7.8 BUT PLEASE EXPLAIN HOW YOU GOT IT!
HELP ASAP (I'll mark brainliest if you answer within the next 5 mins!!)
Answer:
√61
Step-by-step explanation:
(4,-2) - (-2,3) = (6,-5)
6^2 + (-5)^2 = 61
square root both sides to get 7.8
What is the equation of a line that is parallel to the line y = 5x – 1 and passes through the point (4, –3)? A. y = 5x + 19 B. y = –5x + 17 C. y = 5x – 23 D. y = –15x – 115
Answer:
y = 5x - 23
Step-by-step explanation:
Slope: 5
Point (4, - 3)
y-intercept: -3 - (5)(4)
= -3 -20 = -23
y = 5x - 23
Need help, look at attachment
Answer:
angle 1 and angle 8 are co exterior angles. so, their sum is equal to 180°.
28°+ angle 8 =180°
angle 8=180°-28°
angle 8=152°
A line segment has endpoints (0,4) and (5,6).
What are the coordinates of the midpoint?
A. (5/2, -5)
B.(0,6)
C. (3,9)
D. (5/2, 5)
Answer:
D.
Step-by-step explanation:
because if its 0.6 then the line segment of 0.4 divided by 5.6 is you're mom
Rewrite without parentheses and simplify.
(x-6)?
Answer:
x-6
Step by step explanation:
1. If x equaled 3 then we would replace x with three.
2. We would then take the simplified equation and subtract.
3. 3-6 = 3
If this helped please consider marking this answer brainliest!!
-3(x+4)-8x>21 solve this equation
Answer:
the answer:
Step-by-step explanation:
pls, crown or star. <3
Answer:x<-3
Step-by-step explanation:
-3(x+4)-8x>21
-3x-12-8x>21
-11x-12>21
-11x>33
x<-3
Help me please I don’t understand this and it is due tonight
Answer:
y = 5/3x + 31/3
=
5
3
x
+
31
3
Step-by-step explanation:
What is the equation of the line parallel to y = -5x + 6 and passes through the point (6,-8)?
Answer:
y = -5x + 22 is the equation of our parallel line
Step-by-step explanation:
remember a parallel line will have the same slope.
So let's begin by using the equation above and substituting the points.
[tex]y = - 5x + b \\ - 8 = - 5(6) + b \\ - 8 = - 30 + b \\ 30 - 8 = b \\ b = 22[/tex]
therefore our parallel line would be
[tex]y = - 5x + 22[/tex]
Help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Step-by-step explanation:
2(x+7)=72 no, because this only changes the value on the right side. so this equation is not about the same equality anymore.
x+7=18 yes, because both sides were transformed by the same operation (division by 2). the equality is still maintained.
2x+7=36 no, because 2x+7 is NOT equal to 2(x+7). resolving 2(x+7) is 2x+14.
x+14=36 no, because again, x+14 is NOT equal to 2(x+7).
(2×x) + (2×7) = 36 yes, because the left side is a valid transformation of 2(x+7).
2x+14=36 yes, because the left side is a valid transformation of 2(x+7).
Explain why 0.02 x 0.3 = 0.006. Answer in at least 2 complete sentences.
Answer:
.02*.03=.006 because when you multiply decimals after you get your answer you need to move the decimal point over 3 spaces. You do this because when you move the decimal point out three to multiply it you have to move it back in three after you get your solution, or else it is incorrect.
Step-by-step explanation:
What is the missing value?
Answer:
1
Step-by-step explanation:
1 : -7
2 : -5 ( -7 + 2 )
3 : -3 ( -5 + 2 )
4 : -1 ( -3 + 2 )
5 : 1 ( -1 + 2 )
Hopefully this helps!
Brainliest please?
Help how do you do this?
Solve for X: -3X + 2 + 5X - 3 = 8 + 9
Answer:
9
Step-by-step explanation:
-3x+2+5x-3=8+9
2x+-1=17
2x=18
so x equals 9
can somebody please help mee!!!!
Answer:
[tex]first \: w \: do \\ \\ 180 - 154 \\ \\ = 26 \\ \\ second \: we \: do \: \\ \\ x + 10 + x + 26 = 180 \\ \\ 2x + 36 = 180 \\ \\ 2x = 180 - 36 \\ \\2 x = 144 \\ \\ x = \frac{144}{2} \\ \\ x = 72[/tex]
Answer:
x = 72Step-by-step explanation:
The exterior angle is the sum of non-adjacent interior angles:
x + x + 10 = 1542x = 154 - 102x = 144x = 144/2x = 72The other interior angle is 82°
what are the rules for adding and subtracting negatives and positives?
Answer:
Adding positive numbers results in a higher number
Add negative numbers result in a low number
Adding them together just brings the integer closer to 0
Answer:
When adding positive numbers, count to the right. ------>
When adding negative numbers, count to the left. <-------
When subtracting positive numbers, count to the left. <-------
When subtracting negative numbers, count to the right. ------->
Link to Khan Academy to help you better understand: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/cc-7th-sub-neg-intro/v/adding-and-subtracting-negative-number-examples
Khan Academy is a great place to get helpful videos for math homework. Hope this helps (:
A 2-column table with 8 rows. Column 1 is labeled Student with entries 1, 2, 3, 4, 5, 6, 7, 8. Column 2 is labeled Mean Word Length with entries 7.1, 4.5, 6.9, 5.2, 5.0, 4.7, 6.1, 4.5.
Given this data, what is the range of the average word lengths?
Is the variation between sample means large or small?
Answer: 2.6/small
Step-by-step explanation:
Answer:
its 2.6 and small
Step-by-step explanation:
The person is right im just here to confirm xd
Need help asap under 3 mins
Answer:
takai korokomi
Step-by-step explanation:
shimaki