Answers
Answer:
{-6}
Step-by-step explanation:
Step 1 Raise both sides of the equation to the index of the radical in the case 2
[tex](\sqrt{2x+13} )^{2} =(x+7)^{2}[/tex]
[tex]2x + 13 = (x+7)(x+7)[/tex]
[tex]2x +13 = x^{2} + 14x + 49\\0=x^{2} +12x+36[/tex]
Step 2 Factor
(x + 6)(x + 6) = 0
x + 6 = 0
x = - 6
Step 3 Check -6
[tex]\sqrt{2(-6)+13} = -6 + 7\\\sqrt{-12+13} = 1\\\sqrt{1} = 1\\1 = 1[/tex]
Related Questions
ASAP 30 points and BRAINLIEST!! PLS!
Answers
Answer:
[tex]y+3=\frac{2}{5} (x+5)[/tex]
Step-by-step explanation:
First, let's find the slope using the 2 given points and the slope equation.
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
Enter in the points:
[tex]m=\frac{-3--1}{-5-0}[/tex]
Simplify:
[tex]m=\frac{-2}{-5}[/tex]
[tex]m=\frac{2}{5}[/tex]
Now that we have slope we can just use one of the points given. Remember point-slope form:
[tex]y-y1=m(x-x1)[/tex]
I'll use the point (-5,-3) in this case.
So, your solution is
[tex]y+3=\frac{2}{5} (x+5)[/tex]
Hope this helps!
y+1=2/5(x+0) should be it
which equation repersent functions?
2x+3y=10
4x=16
2x-3=14
3y=18
14.6=2x
Answers
Answer:
y= (-2/3)x+10/3 is a function
3y=18 is a function
Step-by-step explanations
in both cases for each input x there is exactly one output y
I'll mark you brainiest if you give me the correct answer.
Answers
Answer:
42b -7.5
I think that's the answer since you are getting a discount which means you are subtracting
Which statement regarding the diagram is true?
m∠MKL + m∠MLK = m∠JKM
m∠KML + m∠MLK = m∠JKM
m∠MKL + m∠MLK = 180°
m∠JKM + m∠MLK = 180°
Answers
Answer:
b. m∠KML + m∠MLK = m∠JKM
Step-by-step explanation:
right on edge
The statement regarding the diagram "m∠KML + m∠MLK = m∠JKM" is true option (B) m∠KML + m∠MLK = m∠JKM is correct.
What is the triangle?In terms of geometry, the triangle is a three-sided polygon with three edges and three vertices. The triangle's interior angles add up to 180°.
We have a triangle shown in the picture:
As we know, triangle is a polygon with three sides and three interior angles.
From the definition of the triangle, The triangle's interior angles add up to 180°
m∠MKL + m∠MLK + m∠KML = 180
Also, the sum of the two interior angles is equal to the exterior angle.
m∠KML + m∠MLK = m∠JKM
Thus, the statement regarding the diagram "m∠KML + m∠MLK = m∠JKM" is true option (B) m∠KML + m∠MLK = m∠JKM is correct.
Learn more about the triangle here:
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someone help please
Answers
Answer:
Type: polynomial
degree: 3
leading coefficient: 8
Step-by-step explanation:
The given equation is: f(x) = -7x^2 + 8x^3 + 6 - 4x
To find the type, degree, and leading coefficient of the equation, the first thing we should do is rewrite the terms in decreasing order:
f(x) = 8x^3 - 7x^2 - 4x + 6
The term with the highest value is 8x^3. We can use this to determine the degree and the leading coefficient.
8 is the leading coefficient. The degree is 3.
To find the type of equation this is, we have to count how many terms there are. We can see that there are 4 terms in this equation, making this a polynomial.
whats 1/2 + 8 9/14 please help ASAP
Answers
Answer: 9 /17 as fraction 9.143 Simplify
Step-by-step explanation:
Answer:
9 1/7
The explanain of this is that 1/2 + 8 + 9 1/4 so... 1/2+9/14=?
7 1/4 + 9/14=16/14 and so... 16/14=8/7 then.. 8/7=1 1/7 then last thing 8 + 1 + 1/7= 9 1/7
The graph shows the membership of a student group: x represents the number of years since the group was formed and y represents the number of members.
The equation is y = 14x + 10.
Which is true regarding the slope?
Membership grows by 14 each year.
The group was formed with 14 members.
Membership is recorded every 14 years.
Answers
Answer:
we conclude that Membership grows by 14 each year.
Step-by-step explanation:
Given the equation
[tex]y=14x+10[/tex]
Comparing the equation with the slope-intercept form
[tex]y=mx+b[/tex]
Here, m is the slope and b is the y-intercept.
From the equation, we can determine the slope
[tex]y=14x+10[/tex]
[tex]m=14[/tex] ∵ [tex]y=mx+b[/tex]
Hence, the slope is m=16.
We know that the slope is referred to as the 'rate of change'.
For example, if you have a part-time job at a store. You save for her tour at a rate of $20 every week. It means, your rate of change will be $20 per week.
So given the equation
[tex]y=14x+10[/tex]
m = rate of change = slope = 24
The slope is basically a vertical change divided by the horizontal change.
Therefore, we conclude that Membership grows by 14 each year.
Find three solutions for the linear equation 4x-3y = 1
PS. answer plsss
Answers
Answer:
I had shoot it so, hope it help u. and sorry, if it is incorrect!!
Answer:
X=1, y=1,(x,y)=(1,1)
X=0,y=-1:3,(x,y)=(0,1:3)
X=1:4,y=0,(1:4,0)
Step-by-step explanation:
Just put the numbers instead of x in the equation and get y, and in (x, y) put the numbers x, y instead.
& represents 29 students in a class
B represents students who have a brother
S represents students who have a sister
В.
S
7
4
2x
x + 3
7+4+2x+x+3=29
a) One student from the class is chosen at random.
What is the probability that the student has a sister? 14+3x=29
3x=15
X=5
29-8=21
Answers
Answer:
a) 14/ 29
b) 4/11
Step-by-step explanation:
x = 5
At noon, the minute and the hour hands overlap. In how long will they overlap again?
Answers
Answer:
1 hour or 60 minutes later
PLZ HELP ASAP 20 POINTS!! wrote an equation in slope-intercept (y=mx+b) form for each line.
Answers
Answer: I’m sorry I cannot explain this any other way because I can not see the answers but —> If you a point that a line passes through, and its slope, this page will show you how to find the equation of the line. ✨
Step-by-step explanation: hope it help you later on!
Answer:
Y= -4x + 3
Step-by-step explanation: because the x value goes with mx, and the y value goes with b. :)
Please help me out :)
Answers
23p+1/4-1/4(8p+1)=5(4p-6)+10
What is p?
Answers
Answer:
p= -20
Step-by-step explanation:
23p+1/4-1/4(8p+1)=5(4p-6)+10
23p+1/4-2p-1/4=20p-30+10
21p=20p-20
p= -20
What is the slope of the line through (0,5) and (-2,-1)?
Answers
Answer:
c
Step-by-step explanation:
the slope is 3
Rise over run. You rise 3 points to get to the other, and run over one. Hope this helps.
ms.kirklan is baking muffins.each batch of muffins use 3/4 of a pound of flour. How many batches of muffins can she bake with 5 pounds of flour
Answers
Divide 5 by 3/4 (or .75 for a calculator)
You get 6.667
Round down
6
Good luck!
The number of batches of muffins Ms.Kirklan can bake with 5 pounds of flour is 7.
Given that, Ms.Kirklan is baking muffins. Each batch of muffins use 3/4 of a pound of flour.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
We need to find the number of muffins she can bake with 5 pounds of flour
Now, 5 ÷ 3/4
= 5 ÷ 0.75
= 6.6
≈ 7
Hence, the number of batches of muffins Ms.Kirklan can bake with 5 pounds of flour is 7.
To learn more about the unitary method visit:
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Which equation represents a proportional relationship?
a y = 7x – 3
b y = 150x
c y = 21x
d y = 2x + 1
Answers
I am not certain but I think c? if its wrong sorry
Forty of the staff of 85 teachers at a local intermediate school are certified in Cardio-Pulmonary Resuscitation (CPR). In 180 days of school, what would be the expected mean, variance and standard deviation?
Answers
Answer and Step-by-step explanation:
The computation is shown below;
Here we use the binomial distribution
p = 40 ÷ 85 = 0.47
q = 1 -0.47 = 0.53
n = 180
Now
mean [tex]\mu[/tex]
= np
= 180 × 0.47
= 84.6
The Variance is
= npq
= 180 × 0.47 × 0.53
= 44.84
And, Standard deviation
= √npq
= √44.84
= 6.69
We simply applied the above formula so that the correct value could come
And, the same is to be considered
-10 + 4
plz heeeeeelp
Answers
Answer:
-6
Step-by-step explanation:
Answer:
- 6
Step-by-step explanation:
Please help I will give brainliest to first person who answers!
Answers
Answer:
71 degrees
It's the measure of angle 1.
A line contains points (3,5) and (5,8). What is the slope
Answers
Answer:
3/2x
Step-by-step explanation:
Plug in to this formula
[tex]\frac{y2-y1}{x2-x1} \\\\\frac{8-5}{5-3} \\\\\frac{3}{2}[/tex]
Your slope is 3/2x
If you want to find the y-intercept just plug in one of the points into this..
( ) = 3/2( ) + b
Hope this helps ya!!
what is f(x) = 0,5 (x-3)( x-5) in general form??
Answers
Answer:
[tex]f(x)=0.5x^2-4x+7.5[/tex]
Step-by-step explanation:
The general form of a quadratic function is:
[tex]y=ax^2+bx+c[/tex]
We'll find the general form of the function:
[tex]f(x)=0.5(x-3)(x-5)[/tex]
Multiplying the expressions in parentheses:
[tex]f(x)=0.5(x^2-5x-3x+15)[/tex]
Simplifying:
[tex]f(x)=0.5(x^2-8x+15)[/tex]
Operating:
[tex]\mathbf{f(x)=0.5x^2-4x+7.5}[/tex]
what is the value of x?
Answers
Answer:
I honestly have no clue.
Step-by-step explanation:
I honestly have no clue.
13 x 24 =
pleze go very fast or i mite fale
Answers
Answer:
312
Step-by-step explanation:
Please answer this question it is for Math!
Answers
Answer:do you mean plotting a graph
Step-by-step explanation:
idenify the slope and y-intercept of the function y=-2x+3
Answers
Answer:
The y-interept is 3 and the slope is -2.
Step-by-step explanation:
The y-intercept is always the "b" in y=mx+b
Answer:
Slope: − 2
y-intercept: ( 0 , 3 )
Step-by-step explanation:
What is the rate of change of y with respect to x for 25x - 4y = 50 ?
Answers
Answer:
25/4Step-by-step explanation:
The change of y with respect to x is known as the slope of the line. The standard form of the equation is y = mx+c where m is the slope.
Given the equation 25x - 4y = 50, we need to make y the subject of the formula before we get the slope as shown;
25x - 4y = 50
-4y = -25x+50
Divide through b y -4
-4y/-4 = -25x/-4 + 50/-4
y = 25/4 x - 25/2
Comparing with y = mx+c
mx = 25/4 x
m = 25/4
Hence the rate of change of y with respect to x is 25/4
The rate of change of y with respect of x for the given equation is [tex]\frac{25}{4}[/tex].
Given the equation:
[tex]25x - 4y = 50[/tex]
The rate of change = the slope of the line
To determine the slope of 25x - 4y = 50, rewrite the equation in slope-intercept form. i.e. [tex]y = mx + b[/tex]Where, slope = mThus,[tex]25x - 4y = 50[/tex]
Add 25x to both sides of the equation[tex]25x -25x - 4y = - 25x + 50\\\\-4y = - 25x + 50[/tex]
Divide both sides by -4[tex]\frac{-4y}{-4} = \frac{-25x}{-4}+ \frac{50}{-4}\\\\y = \frac{25}{4}x - \frac{25}{2}[/tex]
Therefore, the rate of change of y with respect of x for the given equation is [tex]\frac{25}{4}[/tex].
Learn more here:
https://brainly.com/question/16875614
Every 2.5 hours, a machine produces 150 baskets.
What is the unit rate of this proportional relationship? (Hint: You are trying to find how many baskets in one hour.)
60 baskets per hour
60 baskets per hour
2.5 baskets per hour
2.5 baskets per hour
25 baskets per hour
25 baskets per hour
16.6 baskets per hour
Answers
Answer:
60
Step-by-step explanation:
We use unit rate function,
Let h be hours
Let b be baskets
2.5h = 150b
We divide both sides by 2.5
2.5h/2.5 = 150b/2.5
Which will give us
h = 60
what is the slope of the line 5x +2y = -15
Answers
Answer:
-5/2
Step-by-step explanation:
5x +2y = -15
-5x -5x
2y = -5x - 15
y = -5/2x - 7.5
y = mx + b
Slope (m) = -5/2
down 5, right 2
y = Mx + b
5x + 15 = - 2y
-5/2x -15/2 = y
If mAngleUTV < mAngleUTS < mAngleSTR, which statement is true? VU < US < SR by the hinge theorem. VU = US = SR by the hinge theorem. mAngleUTV = mAngleUST = mAngleSTR by the converse of the hinge theorem. mAngleUTV > mAngleUTS > mAngleSTR by the converse of the hinge theorem.
Answers
Answer:
VU < US < SR by the hinge theorem.
Step-by-step explanation:
Did quiz on edge
Answer:
A. VU < US < SR
Step-by-step explanation:
I got a 100 on the test
PLEASE HELP:(........thank you
Answers
Answer:
the answer is C
Step-by-step explanation: