Answer:
7
Step-by-step explanation:
if the number is x then you know 2x-9=5
2x=14
x=7
so the number is 7
How do we solve this? Please help?
Answer:
f'(1) = 7/2
Step-by-step explanation:
We are given the function: [tex]f'(x)=\frac{7}{2\sqrt{x} }[/tex]
To find f'(1), substitute the value for x and evaluate it.
[tex]f'(1)=\frac{7}{2\sqrt{1} }\\\\f'(1)=\frac{7}{2(1)}\\\\f'(1)=\frac{7}{2}[/tex]
Therefore, f'(1) = 7/2.
Solve the formula for the given variable.
-2x - 6 = 4x
Please helppp
Answer:
s snsnnssjsjjsnsnsjs
es 17 es
The products of (2,3) and (-2,-3) is
Answer:
(-4,-9)
Step-by-step explanation:
multiply (a,b)
2 men can build a wall in 10 days. in how many days will 8 men build the wall?
Step-by-step explanation:
8 men can do 60 man days of work by dividing 60 man days by the 8 men, which gives us 60/8 = 7 1/2 da
596 is divisible by 2?
a.yes
b.no
Answer:
It's yes
Step-by-step explanation:
Answer:
yep
Step-by-step explanation:
number is even, so it can be evenly divided by 2. :)
Circled one please help
Formula-
If a set has “n” elements, then the number of subset of the given set is 2n and the number of proper subsets of the given subset is given by 2n-1. Consider an example, If set A has the elements, A = {a, b}, then the proper subset of the given subset are { }, {a}, and {b}
Symbol that can be used-
The symbol "⊆" means "is a subset of". The symbol "⊂" means "is a proper subset of".
Hope it helps you... pls mark brainliest if it helped you.
Which of the following could represent the
interval (8,35)? Select two that apply.
A 8
B 8
C {x|8
D {x|8
E [8,35]
Linear relationship
Answer:
y=2x-1
Step-by-step explanation:
Consider two points, (-2,-5) and (-1,-3)
slope = ((-3)-(-5))/((-1)-(-2))=2/1=2
b=-5-(2)×(-2)=-1
putting it into y=mx+c,
y=2x-1
PLEASE HELP ASAP
Solve the inequality [tex]\sqrt[3]{x+4} \ \textgreater \ \sqrt[2]{-x}[/tex]
A) x < 2
B) x > 2
C) x > –2
D) x < –2
The sum of four
consecutive odd number is 8o. Find the number
Answer:
The sum of 4 consecutive odd number is 80
Let X be the first of these numbers
Then the next odd number is X+2
The third is X+4The fourth is X+6
All of these add up to 80
(X) + (X+2) + (X+4) + (X+6) = 80
Using the commutative and associative laws, let's transform this equation into
(X + X + X + X) + (2 + 4 + 6) = 804X + 12 = 80
Subtract 12 from both sides of the equation gives4X = 68
Divide both sides by 4 gives
X = 17
Going back to the original question:What are the 4 consecutive odd numbers: 17, 19, 21, 23Checking our answer:17 + 19 + 21 + 23 = 80 Correct!
3. Ms. Mason bought 24 bags of chips for $0.52 each. What was the total cost of
the pencils before sales tax was added? Show your work!
Answer:
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simplify by factorization process 35²-15²
Answer:
1000
Step-by-step explanation:
35^2: 1225
15^2: 225
1225 - 225
A ball thrown upwards hits a roof and returns back to the ground.
The upward movement is modeled by a function [tex]s=-t^2+3t+4[/tex]
s= −(t^2)+3t+4
and the downward movement is modeled by [tex]s=-t^2+3t+4[/tex]
s= −2(t^2)+t+7, where s is the distance (in metres) from the ground and t is the time in seconds.
Find the height of the roof from the ground.
Answer: 6 m
A ball thrown upwards from the altitude 4 m,
hits a roof and returns back to the ground.
upward movement: s= −t²+3t+4
downward movement: s=-2t²+t+7
Step-by-step explanation:
Let's calculate the intersection:
[tex]- t^2+3t+4 =-2t^2+t+7\\\\t^2+2t-3=0\\\\t^2+3t-t-3=0\\\\t(t+3)-(t+3)=0\\\\(t+3)(t-1)=0\\\\t=-3 \ (exclude)\ or\ t=1\\\\if\ t=1 \ then\ s=-1^2+3*1+4=6\\\\height\ is\ 6\ m.\\[/tex]
Sorry, i have forgotten the picture.
Review the experimental question and hypothesis. Which statement best explains why the hypothesis is testable?
Question:
How does the amount of water individuals drink everyday affect the number of facial blemishes they receive every month?
Hypothesis:
If the amount of water people drink everyday affects the concentration of certain hormones in their blood, then increasing the amount of water consumed daily will decrease the number of facial blemishes they receive each month.
The hypothesis includes an explanation and makes a prediction.
The hypothesis is written using an "If …, then …" format.
The hypothesis includes both an independent variable and a dependent variable.
The hypothesis can be used to accurately explain observable facts.
Answer:
Step-by-step explanation:
I think the answer should be that there is an if -- then way the statement is worded. Quite often if then statements are used in this kind of experiment. Beyond that I can't make any comment. I don't know that it truly is testable, but it sounds like it should be.
Answer:
The hypothesis includes an explanation and makes a prediction.
Step-by-step explanation: I took the quiz on primavera and got that answer
ZA and ZB are complementary angles. If m A = (8x + 27)° and m
ZB = (6x – 21)°, then find the measure of ZB.
Answer:
15
Step-by-step explanation:
Complementary angles add to 90 degrees
8x+27 + 6x-21 = 90
Combine like terms
14x+6 = 90
Subtract 6 from each side
14x+6-6 = 90-6
14x = 84
Divide by 14
14x/14 = 84/14
x=6
We want angle B
B = 6x-21 = 6*6-21 =36-21 = 15
will give someone a brainlyest pls help! thank you
Answer:
D.
Step-by-step explanation:
5/4=1.25, -2[tex]\sqrt{2}[/tex] = -2.828
Therefore,
1.25 (5/4), 1.04, -0.34, -2.828 (-2[tex]\sqrt{2}[/tex]), -17
A driveway is 2/5 kilometers long. Omar walks 1/3 of the driveway. How far does Omar walk?
Answer:
2/15 kilometers
Step-by-step explanation:
Multiply the distance by the fraction walked
2/5 kilometers * 1/3
2/5 * 1/3
2/15 kilometers
If (x^2−1)/(x+1) = 3x + 5, then x + 3 =
(A) -3
(B) -2
(C) 0
(D) 2
(E) 4
helppppppppppppppppp pllllzzzzz
a
b
c
Answer:
b rectángulo de la referencia de los números que están por debajo de la construcción de un triángulo obtusangulo
solve for x please help (show work)
Answer:
x=-2
Step-by-step explanation:
3x+8x - 3 = -25
Combine like terms
11x -3 = -25
Add 3 to each side
11x -3+3 = -25+3
11x = -22
Divide by 11
11x/11 = -22/11
x = -2
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \:3x \: + \: 8x \: - \: 3 \: = \: - 25[/tex]
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \:11x \: - \: 3 \: = \: - 25[/tex]
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \:11x \: = \: - 25 \: + \: 3[/tex]
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \:11x \: = \: - 22[/tex]
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \: x \: = \: {\cancel\frac{ {- 22} \:^{ - 2} }{11}} \\ [/tex]
[tex]\large\bf{\pink{ \longrightarrow \: }} \tt \:x \: = \: - 2[/tex]
Use the following conversions to answer the question.
60 seconds = 1 minute
60 minutes = 1 hour
24 hours = 1 day
How many minutes are there in a week?
A. 420
B. 1,400
C. 10,080
D. 604,800
Answer:
C. 10,080
Step-by-step explanation:
We can multiply to find how many minutes there are in 1 day.
24 * 60 = 1,440
Now, we can multiply that value by 7 to find out how many minutes there are in 1 week.
1,440 * 7 = 10,080
Best of Luck!
11z/(z+3) = 13 - i , z∈C please solve it
[tex]\frac{11z}{z+3}=13-i,z\in\mathbb{C}[/tex]
First, multiply both sides by [tex]z+3[/tex],
[tex]11z=(13-i)(z+3)[/tex]
[tex]13z+39-iz-3i=11z[/tex]
Collect terms and put z on the left,
[tex]2z-iz=3i-39[/tex]
[tex]z(2-i)=3i-39[/tex]
[tex]z=\frac{3i-39}{2-i}[/tex]
Division of complex numbers is defined by multiplying both denominator and numerator with complex conjugate of the denominator,
[tex]z=3\frac{(i-13)(2+i)}{(2-i)(2+i)}[/tex]
Multiply out,
[tex]z=3\frac{2i-1-26-13i}{5}[/tex]
[tex]z=3\frac{-11i-27}{5}[/tex]
The result is,
[tex]z=-\frac{81}{5}-\frac{33}{5}i[/tex]
Hope this helps :)
2
7) through: (-3,0), slope
3
Answer:
Step-by-step explanation:
Point-slope equation for line of slope m that passes through (x₀, y₀):
y-y₀ = m(x-x₀)
Slope =3 and (x₀, y₀)=(-3,0)
y = 3(x+3)
y = 3x+ 9
:::::
Slope-intercept equation for line of slope m and y-intercept b:
y = mx+b
m=1 and b= -4:
y = x-4
the number of boys and girls in a school are 480 and 576 respectively. express the ratio of the number of boys to that of girls
Answer:
boys : girl
5 : 6
Step-by-step explanation:
boys : girl
480: 576
Divide each side by 96
480/96 : 576/96
5 : 6
Boys = 576
Girl = 480
GCF of 576 and 480 is 96.Now , dividing both numbers by GCF.
[tex] \large\bf{\red{ \longrightarrow}} \tt \: \frac{ \cancel{480} \: ^{5} }{ \cancel{576} \: ^{6} } \\ [/tex]
[tex] \large\bf{\red{ \longrightarrow}} \tt \: \frac{5}{6} \\ [/tex]
⇛Hence , the ratio will be 5 : 6Reflect the shape below across the line x = - 2 . Label the new coordinates.please help me.
Answer:
Step-by-step explanation:
Which graph represents the given equation? y=3/2x^2+4x-2
Answer:
y=3/2x^2+4x-2
Hope it helps
Fifty three million, eight hundred thousand and thirteen
Answer:
53,800,013
need brainliest!!!
How is the next term in this sequence found?
−6, −4, −2, 0, 2
A)
A) Add 2 to the previous term.
B) Add −2 to the previous term.
C) Multiply the previous term by 2.
D) Multiply the previous term by −2.
Answer:
add 2 to every privious term
Step-by-step explanation:
-6+2=-4
-4+2=-2
-2+2=0
0+2=2
You are going to decorate one wall of your bedroom by putting a border along the top. The wall is a square wall with an area of 256 square feet what is the length of the border that you will need for your wall?
Answer:
16 ft
Step-by-step explanation:
Each edge of wall = √256 ft = 16 ft
7(square root 14) divided by (square root 7)
The question given above will require a good understanding of surd operation in order to arrive at the best answer. Thus, the answer to the question is:
[tex]\frac{7\sqrt{14} }{\sqrt{7}} = 7\sqrt{2}[/tex]
To solve this problem, we shall simply rationalise the denominator. This can be obtained as illustrated below:
[tex]\frac{7\sqrt{14}}{\sqrt{7}}\\\\Rationalise\\\\\frac{7\sqrt{14}}{\sqrt{7}} * \frac{\sqrt{7} }{\sqrt{7}}\\\\\frac{7\sqrt{14*7}}{\sqrt{7*7}}\\\\\frac{7\sqrt{98}}{\sqrt{49}}\\\\\frac{7\sqrt{98}}{7}\\\\\sqrt{98}\\\\\sqrt{98} = \sqrt{49*2} \\\sqrt{98} = \sqrt{49} * \sqrt{2} \\\sqrt{98} = 7\sqrt{2} \\\\Thus, \\\\\frac{7\sqrt{14}}{\sqrt{7}} = 7\sqrt{2}[/tex]
Therefore, from the calculations made above, the solution to the question is 7√2
Learn more: https://brainly.com/question/11225829
