The sum of two numbers is 91 the difference of the two numbers is 67 what are the two numbers let x be the larger number and y be the smaller number
Answer:
x = 79
y = 12
Step-by-step explanation:
x + y = 91
x - y = 67
=> x = (91 + 67) : 2 = 79
=> y = (91 - 67) : 2 = 12
P/s: I don't know how to explain what I just did actually, since we learn how to solve this kind of problem in primary at my place already so it's like a blurry memory about how I learn it. If the math problem is to find 2 numbers, knowing their sum and the difference already, this is how to solve it:
=> Larger number: (Sum + difference) : 2
=> Smaller number: (Sum - difference) : 2
If you can memorize it, good for you! If not then it's alright, this is just a nice tips from me to you. You'll have more advantages in solving these kind of math problem if you can memorized these 2 formulas.
Write the equation of the parabola with a focus of (-5,0) and directrix of x=7
Answer:
[tex]\left(y-5\right)^2=-14\:\left(x-\frac{7}{2}\right)[/tex]
Step-by-step explanation:
Answer:
x=(y-5)^2/14 +7/2
I need help with this also I had was to repost it again because someone deleted it
Answer: 8:05
Step-by-step explanation:
Answer: 8:05
Step-by-step explanation:
-8x+60=28 word problems pls
a=0.5 b=-6
work out ab-b
Answer:
a = 0.5
b = 6
ab - b
= 0.5 × 6 - 6
= 3 - 6
= -3
Hope it helps:)
Eric cut 8.56 meters of rope. Before cutting it, he had 14 meters of rope. How much rope does Eric have left?
Answer:
5.44 METERS OF ROPE
Step-by-step explanation:
Given that the points (-32,-10) and (-74,11) lie on a line, what is the equation of the line
The equation of the line with the points (-21, -10) and (-74, 11) is
y = (-/12)x - 26.
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
(-32,-10) and (-74,11)
The equation of a line is given as,
y = mx + c
m = (11 + 10) / (-74 + 32)
m = 21 / -42
m = -1/2
Now,
(-32, -10) = (x, y)
-10 = (-1/2)(-32) + c
-10 = 16 + c
c = -10 - 16
c = -26
Now,
The equation of the line is y = (-/12)x - 26.
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What is the answer to number 4 ?
Answer:
C
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
What is the sum of 2 of the interior angles of a regular pentagon?
The sum of the two interior angles of the regular pentagon will be 540°
What is a polygon?A polygon is a plane figure described by a finite number of straight-line segments connected to form a closed polygonal chain in geometry. A polygon is defined as a bounded plane region, a bounding circuit, or both.
We can also calculate the sum of the interior angles of the pentagon in the following way:
We know that the sum of the interior angles of a polygon of n sides
Sum = (n – 2) × 180°.
Sum = 3× 180°= 540°.
Hence, the sum of the interior angles of a pentagon is 540°.
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What is the relationship between these two vectors?
Answer:
a and c
Step-by-step explanation:
that's because they both have a and c....so their relationship is a and c
1, 4, 9, 16, 36, 49, 64 find the pattern
Answer:
0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144. Its a square number
Step-by-step explanation:
Hope this helps! Please mark brainliest if it did, it means a lot of proogression to me and thanks! <3
Answer:
Informally: When you multiply an integer (a “whole” number, positive, negative or zero) times itself, the resulting product is called a square number, or a perfect square or simply “a square.” So, 0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, and so on, are all square numbers.
Step-by-step explanation:
In two or more complete sentences describe how to determine if the function, f(x) =3cos(x) is even by looking at a graph
Answer:
You know that a cosine graph is a sine graph moved to the left by pi/2, therefore, like a linear equation, you need to make the cosine graph 3 times less width.
Step-by-step explanation:
hihi pls help with geometry:)
Answers:
problem 6) x = 5problem 7) x = 5problem 8) x = 4problem 9) x = 6================================================
Explanation:
The angles with the similar arc markers are congruent angles. This is only when we consider any particular triangle isolated from the others.
Since we have 2 congruent angles, the triangles are considered isosceles. The congruent sides are opposite the congruent angles.
So we'll set the congruent side expressions equal to one another and solve for x. We ignore the side that isn't opposite one of the congruent angles. This applies to all four problems.
---------------------------
Work Shown for Problem 6:
3x = x+10
3x-x = 10
2x = 10
x = 10/2
x = 5
---------------------------
Work Shown for Problem 7:
x = 10-x
x+x = 10
2x = 10
x = 10/2
x = 5
---------------------------
Work Shown for Problem 8:
4x-12 = x
4x-x = 12
3x = 12
x = 12/3
x = 4
---------------------------
Work Shown for Problem 9:
2(x+3) = 18
2x+6 = 18
2x = 18-6
2x = 12
x = 12/2
x = 6
Or you can solve it like this
2(x+3) = 18
x+3 = 18/2
x+3 = 9
x = 9-3
x = 6
At Splatball Indoor Paintball, it costs $34.95 per person to play, and extra paintballs are available to buy. A group of n friends paid their admission, and also spent $94.95 on 2000 extra paintballs. They spent a total of $374.55. Write and solve an equation to determine n, the number of people in the group.
Answer:
$374.55 - $94.95 = $279.60 = N
$34.95 x 8 = $279.60
N=8
Step-by-step explanation:
Fill in the blank
Never gonna ____ ___ ___, Never gonna let you down, Never gonna run around and _____ you.
Answer:
give you up desert you
Step-by-step explanation:
give you up desert you
Answer:
NEVER GONNA GIVE YOU UP
AROUND AND DESERT YOU
Extra for fun: NEVER GONNA LET YOU CRY NEVER GONNA SAY GOODBYE (i think)
Step-by-step explanation:
Just is correct trust me exept the extra extra im not fully sure
Each diagram shows △ABC and △DEF on the coordinate plane, with ∠A ≅ ∠E,
and ∠C ≅ ∠F. Identify whether the two triangles are congruent. If they are not
congruent, explain how you know. If they are congruent, find the length of each
side of each triangle.
Please help a brother out, I need this for a test.
Answer:
they are not congruent
Step-by-step explanation:
Help me please quickly
Answer:
x ≥ 1
Step-by-step explanation:
→ As it is a shaded circle you know it ≤ or ≥
x ≥ 1
The solution to the equation log2x log2(x â€"" 6) = 4 is x =.
The solution to the logarithmic equation [tex]\mathbf{log_2(x-6) = 4}[/tex] is x =24
The logarithmic equation is given as:
[tex]\mathbf{log_2(x-6) = 4}[/tex]
Apply exponential law of logarithm
[tex]\mathbf{(x-6) = 2^4}[/tex]
Remove the brackets
[tex]\mathbf{x-6 = 2^4}[/tex]
Add 6 to both sides
[tex]\mathbf{x-6 +6= 6+ 2^4}[/tex]
Express 2^4 as 16
[tex]\mathbf{x-6 +6= 6+ 16}[/tex]
Add -6 and 6
[tex]\mathbf{x= 6+ 16}[/tex]
Add 6 and 16
[tex]\mathbf{x= 24}[/tex]
Hence, the solution to the logarithmic equation [tex]\mathbf{log_2(x-6) = 4}[/tex] is x =24
Read more about logarithmic equation at:
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does the height of the shooter affect the number of goals scored in a netball match
What’s the gradient and y intercept for c and e and could u explain pls thx
Step-by-step explanation:
if you are given an equation of a form y=kx+b, k is gradient and b is y-intercept
in c you can write this equation as y=(2x/3)-2,so gradient = 2/3 and y-intercept =-2
in e:6y=2x+3
y=x/3+1/2,gradient = 1/3, y-intercept=1/2
The gradient or Slope in a linear equation is simply the value "a" in this equation : y = ax + b
And the y-intercept is simply the value b.
so for example, what is the slope of y = 5x + 3 ? What is the y-intercept ? Well the gradient (or slope) is 5, and the y-intercept is 3.
So, for a.
y = -1/2x + 8
it's pretty simple : gradient = -1/2
y intercept = 8
Now for c.
[tex]y=\frac{2x-6}{3}[/tex]
[tex]y=\frac{2}{3}x-\frac{6}{3}[/tex]
[tex]y=\frac{2}{3}x-2[/tex]
So the gradient is 2/3 and the y intercept is -2 (and not +2, be careful there is a negative sign :) )
e.
-2x + 6y - 3 = 0
6y = 2x + 3
y = (2/6)*x + (3/6)
y = (1/3)*x + (1/2)
so the gradient is 1/3
and the y-intercept is 1/2
Good luck, your the best :)
You can buy laundry product in a 28-ounce bottle for $6.44 or in a 24-ounce bottle for $4.80.
Answer:
what is the question
Step-by-step explanation:
tell me the question
put the polynomial in standard form -4b+7b2+1
Answer:
[tex]7b^2-4b+1[/tex]
Reasoning:
A polynomial is said to be in its standard form, if it is expressed in such a way that the term with the highest degree is placed first, followed by the term which has the next highest degree, and so on.
Thus, this will be the polynomial in standard form:
[tex]7b^2-4b+1[/tex]
In the expression 4ab + 5a
- 3c, what is the coefficient of the term 4ab ?
Answer:
4
Step-by-step explanation:
coefficients are the numbers in a term, and the letter is called constant
Answer:
4
Step-by-step explanation:
The numeric value of the term is called the coefficient of the term.
Does anyone know this ??
bbbbbbbbbbbbbbbbbbbbbbbbbbbvbbbbbbbbbbb
Any one know the answer for this question??????
Answer:
C) y > 0
Step-by-step explanation:
I graphed it
How to tell the degree of a polynomial graph.
Answer:
The graph of a polynomial function will touch the x-axis at zeros with even multiplicities. The graph will cross the x-axis at zeros with odd multiplicities. The sum of the multiplicities is the degree of the polynomial function.
Aubree is throwing a pizza party. She has 3 pounds of cheese available and she
needs , pound of cheese to make each pizza. How many pizzas can she make?
Answer:
10 2/3
Step-by-step explanation:
16 x 2/3
32/3 or 10 2/3
What is the slope of this graph?
a: 1/3
b: 3
c: -3
d: -1/3
Answer:
-3
remember, slope is rise over run. It's negative because the line is declining.
Order these numbers from least to greatest.
104/25
4.104
4 1/10
4.74
Write each equation in STANDARD FORM. y=-2/3x+3
[tex]\huge\underline\mathtt\colorbox{cyan}{2/3x+y+3=0}[/tex]