Answer:
x+8=-3.
x=-3-8.
x= -11.
Answer:
x=−11
Step-by-step explanation:
hello, please help!! Thank you
I gave steps in the picture how to solve it was much easier to write it out then type it. hope this helps!
when you reverse the digits of a certain two-digit number you decrease its value by 45. What is the number if the sum of its digits is 5
Answer:
The number is 50.
Step-by-step explanation:
We need to understand the problem and convert it into a mathematical equation, or a series of equations. That way, we can solve them with ease.
The first thing we can do is to assign variables to represent the values that we do not know.
Let us assign the first number to be = x and the second number to be = y.
Important!
At this point, we must put their place values into consideration.
Since we are dealing with a two-digit number, we only have tens and units.
We will account for the place values of the variables assigned (x and y) by multiplying them by 10 and 1
x is the tens place value. To occupy this place value, it will become 10x
y is the unit place value. To occupy this place value, it will become 1 X y = y
This means that the original number is of the format x y
To convert this to an equation, it will become 10 (x) + y
Once the number order is reversed we will have 10 (x) + y = 10(y) + x - 45
grouping like terms
10x-x - 10y +y = - 45
9x -9y = - 45
From the second statement, we also have that x + y = 5
hence we have two equations x + y = 5 ---------- equation 1
9x -9y = - 45 ------------ equation 2
solving simultaneously, we have that the two numbers are 0 and 5
The number therefore, is 50
x = 5 and y = 0
Given that Cosecant (t) = negative StartFraction 13 Over 5 EndFraction for Pi less-than t less-than StartFraction 3 pi Over 2 EndFraction use an appropriate identity to find the value of cot(t).
Answer:
[tex]\bold{cot(t) =\dfrac{12}{5}}[/tex]
Step-by-step explanation:
Given that:
[tex]Cosec (t) = -\frac{13}5[/tex]
for [tex]\pi < t < \frac{3 \pi}2[/tex]
That means, angle [tex]t[/tex] is in the 3rd quadrant.
To find:
Value of cot(t)
Solution:
First of all, let us recall what trigonometric ratios are positive and what trigonometric ratios are negative in 3rd quadrant.
In 3rd quadrant, tangent and cotangent are positive.
All other trigonometric ratios are negative.
Let us have a look at the following identity:
[tex]cosec^2\theta -cot^2\theta =1[/tex]
here, [tex]\theta =t[/tex]
So, [tex]cosec^2t-cot^2t=1[/tex]
[tex]\Rightarrow (-\dfrac{13}{5})^2-cot^2t=1\\\Rightarrow (\dfrac{169}{25})-cot^2t=1\\\Rightarrow \dfrac{169}{25}-1=cot^2t\\\Rightarrow \dfrac{169-25}{25}=cot^2t\\\Rightarrow \dfrac{144}{25}=cot^2t\\\Rightarrow cot(t)=\pm\sqrt{\dfrac{144}{25}}\\\Rightarrow cot(t)=\pm\dfrac{12}{5}[/tex]
But, angle [tex]t[/tex] is in 3rd quadrant, so value of
[tex]\bold{cot(t) =\dfrac{12}{5}}[/tex]
Answer:
12/5
Step-by-step explanation:
What is the domain of the function y=x/x?
Answer:
-infinity < x < +infinity
Step-by-step explanation:
the domain of a cube root function is the set of all real numbers. unlike a square root function which is limited to non-negative numbers, a cube root can use all real numbers because it is possible for three negatives to equal a negative.
Answer:
A
Step-by-step explanation:
Edge 2021
what is the probability of choosing a card from a deck of cards that is a heart or a nine?
f(x) = -3x2 – 20
Find f(-7)
Answer:
Step-by-step explanation:
f(-7)= -3(-7)^2 - 20
f(-7) = -3(49) - 20
= -147 - 20 = -167
Please Help me With this 30 points and brainliest to first person
Answer:
(4 * (1 + 2 * 3))^5
Step-by-step explanation:
Try many possibilites and see which one is greater.
The '5' should be an exponent, as it will make the result very large.
Multiplication is usually an operation that makes numbers very big.
Jayden walked a total of 12x+5r-8 miles on Monday and Tuesday. If he walked 7x-10r miles on Monday, how
many miles did he walk on Tuesday?
Answer: Jayden walked 8 miles on Tuesday
Step-by-step explanation:
The New Horizons space probe passed the moon 8 hours and 35 minutes after launch. Write this number as a fraction and reduce. Choose the correct answer. Use 60 as your denominator, not 100, because there are 60 minutes in one hour. A. 9 3/7 hours B. 8 hours C. 8 1/2 hours D. 8 7/12 hours
Answer:
D
Step-by-step explanation:
8 hours and 35 minutes can be rewritten as the mixed fraction 8 35/60.
You can reduce this fraction by dividing the numerator and denominator by 5.
35/5 = 7
60/5 = 12
So, 35/60 = 7/12
Now add 8 to your reduced fraction.
8 + 7/12 = 8 7/12
Hope this helped!
Find the missing value.
Hint: Use the number line to find the missing value
-3 = -7
Answer:
is that all the context that is given?
How many lines pass through two points ?
Answer:
one
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
Postulate 3: Through any two points, there is exactly one line.
The journey of a car travelling towards
Perth, Australia, can be expressed by the
relation d=-75t + 275, where d is the
distance from Perth in km and t is driving
time in hours.
a Is this relation a function? Justify your
answer.
b Rewrite the equation in functional
notation.
At the start of the journey, how far was
the car from Perth?
С
d What values of I do not make sense for
this situation?
Answer:
a. The given equation is d = -75·t + 275 is a function
b. f(t) = -75·t + 275
c. 275 km
d. The situation does not makes sense for t > 11/2 hours.
Step-by-step explanation:
a. Given that a relation is a functional relation if for each input of a member in the relation, there is only one output for the other member, therefore;
The given equation is d = -75·t + 275 is a function
As when t = 1, d = 200 km
b. The equation written in functional notation, f(t) is f(t) = -75·t + 275
c. At the start of the journey, t = 0
Therefore;
f(0) = -75×0 + 275 = 275 km
d. The values of t that do no make sense in the function are given as follows
0 = -75×t + 275
t = 275/75 = 11/3 = 3.67 hours
For times above 3.67, the distance becomes negative
Therefore, the situation does not makes sense for t > 11/2 hours.
10 fewer than a number t
Answer:
t-10
Step-by-step explanation:
fewer than means it comes after
t-10
Answer:
it's t -10
Step-by-step explanation:
awnser these questions
Answer:
Problem 2:
4x - 20 = 4
4x = 24
x = 6
Step-by-step explanation:
Please help me with this math
Distributive Property Assignment
1/6(3/5x+18)=
Leave answer as a fraction.
Answer:
1/10x+3
Step-by-step explanation:
1/6(3/5x+18)
Multiply 3/5x and 18 by 1/6
1/10x+3
7. Ara and Vartan each have a pomegranate tree growing in their backyards. Ara’s tree is two times taller than Vartan’s. If the total height of the two trees is 25 feet, then how tall is each tree?
Answer:
The height of Ara's tree is 50/3 feet while Vartan's tree is 25/3 feet high
Step-by-step explanation:
Represent Ara's tree with A and Vartan's with V
Given
[tex]A = 2V[/tex]
[tex]A + V = 25[/tex]
Required
Determine A and V
[tex]A = 2V[/tex]
[tex]A + V = 25[/tex]
Substitute 2V for A in [tex]A + V = 25[/tex]
[tex]2V + V= 25[/tex]
[tex]3V = 25[/tex]
Divide both sides by 3
[tex]V =\frac{25}{3}\ feet[/tex]
Recall that [tex]A = 2V[/tex]
So:
[tex]A = 2 * \frac{25}{3}\ feet[/tex]
[tex]A = \frac{2 * 25}{3}\ feet[/tex]
[tex]A = \frac{50}{3}\ feet[/tex]
Hence, the height of Ara's tree is 50/3 feet while Vartan's tree is 25/3 feet high
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
c.
Step-by-step explanation:
If f(x)=2x+5, then what is f(3)?
Answer:
[tex]\Large \boxed{f(3)=11}[/tex]
Step-by-step explanation:
[tex]f(x)=2x+5[/tex]
For f(3), the input for the function f(x) is 3.
Let x (input) = 3.
[tex]f(3)=2(3)+5 \\\\ f(3)=6+5 \\\\ f(3)=11[/tex]
Answer:
11
Step-by-step explanation:
f(x)=2x+5
Let x = 3
f(3) = 2*3+5
= 6+5
= 11
Evaluate the following expression. 5^-1/5^0
Answer:
1/5
Step-by-step explanation:
5^-1/5^0
=5^-1/1
=1/5
an archer shoots an arrow into the air. The equationfor the height of the arrow in metres is (h) over time (t) in secondsis given by the equation: h= -2t^2+6t + 1 find the maximum height of the arrow? find the time for the arrow to reach that height please answer properly and not randomly thankyou.
Answer:−2=x that’s the answer
ZWXY is a right angle. If Z
is in the interior of ZWXY,
mZWXZ = 7x+8, and
mZZXY = 5x – 2, find the
value of x.
Answer:
x = 7
Step-by-step explanation:
The sum of the interior angles is 90°, so you have ...
(7x +8) +(5x -2) = 90
12x = 84 . . . . subtract 6; next, divide by 12
x = 7
91.2727272727 simplify??
Answer:
91 +3409/12500
Step-by-step explanation:
Did you mean simplify as a fraction?
What is the value of x in the equation 4x - 2(x+3) = 8
Answer:
x=7
Step-by-step explanation:
4x-2(x+3)=8
4x-2x-6=8
2x-6+6=8+6
2x=14
x=7
Proof:
4x-2(x+3)=8
4(7)-2(7+3)=8
28-14-6=8
14-6=8
8=8
Hope this helps ;) ❤❤❤
The value of x in the equation 4x - 2(x+3) = 8 is 7.
What is a system of equations?A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
We need to find the value of x in the equation 4x - 2(x+3) = 8
4x-2(x+3)=8
4x-2x-6=8
2x-6+6=8+6
2x=14
x=7
Proof: 4x-2(x+3)=8
4(7)-2(7+3)=8
28-14-6=8
14-6=8
8=8
Hence, the value of x in the equation 4x - 2(x+3) = 8 is 7.
Learn more about equations here;
https://brainly.com/question/10413253
#SPJ2
(-7.4)+e=9.11 what is e
Greetings from Brasil...
Solving this equation
-7.4 + E = 9.11E = 16.51Find the common difference and the next three terms of the arithmetic sequence. 1/4,1/2,3/4,1,5/4
Hi there! :)
Answer:
[tex]\large\boxed {\frac{1}{4}}[/tex] Common difference
[tex]\large\boxed{\frac{3}{2}, \frac{7}{4}, 2}[/tex] Next three terms
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Find the common difference by subtracting the previous term from a term. We can use the terms 1/4 and 1/2:
Convert 1/2 into a fraction over 4:
1/2 · 2/2 = 2/4
Find the common difference by subtracting the fractions:
2/4 - 1/4 = 1/4. This is the common difference.
Find the next 3 terms by adding 1/4:
5/4 + 1/4 = 6/4 (Reduce fraction) = 3/2
6/4 + 1/4 = 7/4
7/4 + 1/4 = 8/4 (Reduce fraction)
Therefore, the next 3 terms are 3/2, 7/4 and 2.
HELPP!!! 20 POINTTS
Given the following Venn diagram, choose the correct set for the following:
Answer:
2,3,5,6,8,9 (i think)
Step-by-step explanation:
Answer:
2,3,5,6,8,9
Step-by-step explanation:
Calculate the area of the shaded region. Use 3.14 for pi; round to the nearest tenth, if needed. HELP PLSSS I HAVE TO GET THIS DONE SOON!
Answer:
87.48
Step-by-step explanation:
First find the area of the square
12^2=144
find area of the 2 circles
9*3.14
but theres 2
18*3.14=56.52
144-56.52=87.48
Need to find the angles of <1 and <2.
Answer:
1< and 2< are equal to 125
Step-by-step explanation:
The angle of a straight line is 180, so it would be 180° minus 55°, and that equals to 125°
prove that sin 60° = 2 tan 30°/1+ tan² 30°
◈ LHS :
[tex]:\implies\tt\:sin60\degree[/tex]
[tex]:\implies\bf\:\dfrac{\sqrt{3}}{2}[/tex]
◈ RHS :
[tex]:\implies\tt\:\dfrac{2tan30\degree}{1+tan^230\degree}[/tex]
[tex]:\implies\tt\:\dfrac{2\times \dfrac{1}{\sqrt{3}}}{1+{\large(}\dfrac{1}{{\sqrt{3}}}{\large)}^2}[/tex]
[tex]:\implies\tt\:\dfrac{2}{\sqrt{3}}\times \dfrac{3}{3+1}[/tex]
[tex]:\implies\tt\:\dfrac{2}{\sqrt{3}}\times \dfrac{3}{4}[/tex]
[tex]:\implies\bf\:\dfrac{\sqrt{3}}{2}[/tex]
Hence Proved !!