Answer:
x-intercepts: (-6, 0) , (2, 0)Step-by-step explanation:
x-intercepts are points where y=0
[tex]y = -x^2 - 4x + 12\\\\y=0\quad\iff\quad -x^2 - 4x + 12=0\\\\{}\qquad\quad\quad a=-1\,,\ b=-4\,,\ c=12\\\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-(4)\pm\sqrt{(-4)^2-4\cdot(-1)\cdot12}}{2\cdot(-1)}=\dfrac{4\pm\sqrt{16+48}}{-2}\\\\x_1=\dfrac{4+\sqrt{64}}{-2}=\dfrac{12}{-2}=-6\ ,\quad x_2=\dfrac{4-8}{-2}=\dfrac{-4}{-2}=2[/tex]
x-intercepts: (-6, 0) , (2, 0)
Solve the equation $\frac{x+1}{2}=4x-3$
[tex]\frac{x + 1}{2} = 4x - 3\\\frac{x + 1}{2} \cdot 2 = 4x \cdot 2 - 3 \cdot 2\\x + 1 = 8x - 6\\x - 8x = -6 - 1\\-7x = -7\\x = \frac{-7}{-7}\\x = 1[/tex]
Dan has 1, candy bars. He is going to keep of a candy bar for himself and then share the rest with 5 of his friends.
What fraction of a candy bar will each friend get? Show ALL of your work in the box below.
Answer:
1/6
Step-by-step explanation:
Each friend will get 1/6 fraction of candies.
What is a fraction?A fraction is a numeral that represents a rational number.
Let a and b be two numbers, then their fraction can be represented as a/b.
Given that,
Total candy bar Dan has = 1
Total number of friends Dan have = 5
Implies that there are total 6 friends,
So 1 candy will be shared by each one,
1 candy = 6 persons
1 person = 1/6 candy
The fraction value will be 1/6.
To know more about Fraction on:
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help me plz fast and I will mark the brainiest
Answer:
a is the answer -3
Step-by-step explanation:
-3 (-3) ^2 =81
have a nice day
can some one please answer !! i’ll give you a brainliest!!!!!!!
Answer:
1) 7/12 is rational
2) √28 is irrational
3) √13/25 is irrational
4) -15 is irrational
5) 5π is irrational
again hellp
plzzzzzzzz
Answer: C
Hope this helps :)
If the test is worth 100 points and each homework assignment is work 20% of the test, how many points may be earned during this unit?
Answer:c
Step-by-step explanation:
i need help or the answer
Answer:
5x+4y = 52
Step-by-step explanation:
We can first write the equation in point slope form
y-y1 = m(x-x1) where m is the slope and (x1,y1) is the point
y - 8 = -5/4 ( x-4)
Multiply each side by 4 to get rid of the fraction
4(y - 8) = 4*(-5/4) ( x-4)
4(y - 8) = -5 ( x-4)
Distribute
4y - 32 = -5x+20
We want the equation in the form
Ax + By = C
Add 5x to each side
5x+4y -32 = -5x+5x+20
Add 32 to each side
5x+4y -32+32 =32+20
5x+4y = 52
Identify the property used in each step 2x-10-3=15
Answer:
x = 1
Step-by-step explanation:
2x-10-3=15 (given)
2x-13=15 (simplification)
2x=2 (addition property of equality)
x = 1 (division property of equality)
hope this helps
the measure of an angle plus twice its complement is equal to 145. find the measure of the angle and its complement
Answer: 35° and 55°
Step-by-step explanation:
For complementary angle, their total value equals to 90°.
Let the measure of the angle be y.
Therefore the complement will be:
= 90° - y
The measure of an angle plus twice its complement is equal to 145 can be expressed as:
y + 2(90 - y) = 145
y + 180 - 2y = 145
y = 180 - 145
y = 35°
The angle is 35° and its complement will be:
= 90 - y
= 90 - 35
= 55°
11
Find the least common denominator (LCD) of
7
and
9
6
Greetings! I hope this helps!
Answer:
1
Explanation:
7 = 7/1
9 = 9/1
6 = 6/1
what is the formula for volume
plzz hurry
Answer: length x width x height
Step-by-step explanation:
Can someone please help!!
Answer:
Remainder is 7
Divisor is x-1
Step-by-step explanation:
i got the remainder from remainder theorem
the second i was taught in grade 3
What can be concluded of the graphed polygon.
Answer:
there's no image!!!!!
Traus earned $13 babysitting on Saturday and Sebabysitting on Sunday By how much doserings on Saturday
exceed his earings on Sunday?
OS
Save and Et
Answer:
26$ because 13+13 is 26 boom
-4.7x + 4 = 4.6x + 7
Answer:
-.32
Step-by-step explanation:
What are all the true statements
Group of answer choices
1. Two squares with the same side lengths are always congruent.
2. Two rectangles with the same side lengths are always congruent.
3. Two rhombuses with the same side lengths are always congruent.
4. Two parallelograms with the same side lengths are always congruent.
Answer:
i am going to say number 1 even though they all sound right hope i helped <3
Step-by-step explanation:
A rectangle has a length of 10 and a width of 6. What is the length of the diagonal?
Answer:
Step-by-step explanation:
no idea i need points so thats y im commenting
Answer:
Step-by-step explanation:
l = 10
b = 6
d = √ [tex]l^{2} + b^{2}[/tex]
d = √ [tex]10^{2} + 6^{2}[/tex]
= √ 100 + 36
= √ 136
= 11.66
Hope this helps
plz mark as brainliest!!!!!!
The chart below shows how far an object travels over a certain time.
A 3-column table with 4 rows. Column 1 is labeled Seconds with entries 4, 8, 12, 16. Column 2 is labeled Inches with entries 18, 36, 54, 72. Column 3 is labeled feet with entries 1.5, 3, blank, 6.
After 12 seconds, how far, in feet, will the object travel?
It will travel
feet.
Answer:
I had my child look for the patterns. We found the answer of 4.5. I had her add another 1.5 which gave us the number 6 in the chart to show proof to her.
Answer:
The answer is 4.5
Step-by-step explanation:
Hope this helps you/everyone :)
*PLEASE ANSWER, DIFFICULT QUESTION*
the set of solutions of the equation |f(x)|=a
is always equivalent to sum of sets of solutions of equations:
f(x)=a
and
f(x)=-a
therefore correct answer is the first and the second equation
what is 4.5 into a fraction
Find the measure of angle 1
Answer:
vertically opposite angle6×+8 answers is
find the radius if the diameter is 24cm
Answer:
Radius - 12
Simply, divide 2 to the given diametee
Answer:
12
Step-by-step explanation:
Diameter is twice the radius. So to get the radius from diameter, just divide the diameter by 2.
Please look at image to (hopefully) get a better understanding.
Attached is an image from piday; I take no responibility for the creation of this image.
Valeria uses the smoothie store's loyal customer app, and she's earned a reward worth $2 off her next purchase. Knowing she goes there often, her grandma clipped a "Save 15%" coupon" from the newspaper and gave it to Valeria. If her smoothie purchase is $7.50 and the store will only let her use one discount, which should she choose to lower the cost most?
Answer:
Valeria should use the reward worth $2 off her next purchase.
Step-by-step explanation:
To find the answer, you have to determine what Valeria would pay with each discount:
-reward worth $2 off her next purchase:
$7.50-$2=$5.50
-Save 15% coupon:
$7.50*0.15=$1.125
$7.50-$1.125=$6.375
According to this, the answer is that Valeria should use the reward worth $2 off her next purchase as she will pay $5.50 and with the save 15% coupon she would have to pay $6.375.
2. Write the following number in standard form: (3.NSBT.4)
three hundred eighty-four thousand, twenty-two
T T
Find the midpoint of ST given the coordinates S(2,5) and T(-3,7)
Answer:
(–½, 6)
Step-by-step explanation:
The following data were obtained from the question:
S coordinate = (2, 5)
T coordinate = (–3, 7)
Mid point =..?
The mid point (S, T) can be obtained as follow:
S = (s₁ + s₂)/2
s₁ = 2
s₂ = –3
S =?
S = (2 + –3)/2
S = (2 – 3)/2
S = – ½
T = (t₁ + t₂)/2
t₁ = 5
t₂ = 7
T =.?
T= (5 + 7)/2
T = 12/2
T = 6
Mid point = (S, T) = (–½, 6)
What is the scale factor on a graph
Answer: The scale factor of a dilation is the factor by which each linear measure of the figure (for example, a side length) is multiplied.
Step-by-step explanation:
A dilation can be described in coordinate notation as (x,y)→(2x,2y)
–3x + 5 = –3x + 10 A. 5/6 B. –5/6 C. no solution D. Idenity
Answer:
The answer would be C. no solution
Step-by-step explanation:
I hope this helped!
What is Three to the power of negative three
Answer:
0.04
Step-by-step explanation:
The scale of a map says that 4 cm represents 5 km. What is the actual number of kilometers that is represented by 5 centimeters on the map?
Answer:
6.25 km
Step-by-step explanation:
Let the number of km represented by 5 cm be x
Hence,
4 : 5 : : 5 : x
4x=25
x=6.25 km
I NEED HELP ASAP!!!!! :0 Graph the solution set for the inequality
y > 2x-5 by following these steps:
Step 1: Identify the slope and y-intercept.
slope = y-intercept =
-2 2
2 -5
5 5
Answer:
2 -5
Step-by-step explanation:
The slope and y-intercept are 2 and -5 after comparing them with the standard equation.
What is inequality?It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
It is given that:
The inequality is y > 2x-5
The above inequality represents the linear graph
After drawing on the graph:
On comparing:
y = mx + c
The slope m = 2
The y-intercept c = -5
Thus, the slope and y-intercept are 2 and -5 after comparing them with the standard equation.
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