please help me solve this.
Answer:
X=7 X=-1
Step-by-step explanation:
4(x^2 -6x -7) you saw that the common denominator was 4 so you divided everything by it.
(X-7)(X+1) Two numbers that multiplied give-7 and added -6 are those
X=7 X=1 equating those parenthesis to 0 gives you that
Please help me!!!
solve for f : 5/6 f =5
1. 5
2. 4.2
3. 7.3
4. 6
Answer:
6
Step-by-step explanation:
| 4x2 – 121 + 5 = 0 ?
Hey there!
4x^2 - 121 + 5 = 0
COMBINE your LIKE TERMS
(4x^2) (-121 + 5) = (0)
(-121 + 5) = -116
New equation: 4x^2 - 116 = 0
ADD 116 to BOTH SIDES
4x^2 - 116 + 116 = 0 + 116
Cancel out: -116 + 116 because that gives you 0
Keep: 0 + 116 because that helps you solve for x
0 + 116 = 116
New equation: 4x^2 = 116
DIVIDE 4 to both sides
4x^2/4 = 116/4
Cancel out: 4/4 because that gives you 1
Keep: 116/4 because that helps you solve for x
Equation: x^2 = ± 116/4
116/4 = 29
Answer: x = √29 OR x = √-29
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
Answer:
Step-by-step explanation:
Here are your Explanations
Step 1
4x2 – 121 + 5 = 0 obsere the questions
Step 2
4x2 – 121 + 5 = 0 Simplify
4x2−116=0
Step 3
4x2−116=0 Add 116 to the sides
4x2=116
Step 4
4x2=116 Divide the sides by 4
x=29 Then you take the square root
Answer : sqrt29 or -sqrt29
please help i will mark branliest
Answer:
1
Step-by-step explanation:
The range is the difference between the largest and smallest values.
range = 9 - 2 = 7
If 2 is replaced by 3 then 3 becomes the smallest value and
range = 9 - 3 = 6
That is the range decreases by 1
A designer decides to create a larger scale model of a smart phone so that his team can work more easily on the design. The length of the screen of his model is 60 centimeters, which is 2.5 times longer than it is wide. The designer asked his team to build the screen of the actual phone with a width of 6 centimeters. What is the scale factor of the model phone to the actual phone?
Answer:
The length of the model is 250% of the width and is 60 centimeters, and the width of the actual phone is 6 so it has a scale factor of 4:1.
Hope this helps!
Which of the following describes the graph of 2x + 4y < 16?
dashed line, shaded below
solid line, shaded above
solid line, shaded below
dashed line, shaded above
=============================================================
Explanation:
2x + 4y < 16 solves to y < -0.5x+4 when you isolate y. The inequality sign does not change direction because we divided both sides by a positive value (in this case, 4).
The graph of y < -0.5x+4 will be the same as the graph of 2x+4y < 16
To graph y < -0.5x+4, we graph y = -0.5x+4 which is a straight line that goes through the two points (0,4) and (2, 3). This is the boundary line of the inequality shaded region. The boundary line is a dashed line because we are not including points on the boundary that are part of the solution set. We only include these boundary points if the inequality sign has "or equal to".
We then shade below the dashed boundary line to indicate points below the boundary line. The shading is done downward due to the "less than" sign.
---------------------
Perhaps another method to find what direction we shade is we can try out a point like (0,0). The point cannot be on the boundary line.
Plug those coordinates into either equation. I'll pick the second equation
y < -0.5x+4
0 < -0.5*0+4
0 < 0+4
0 < 4
The last inequality is true, so the first inequality is also true when (x,y) = (0,0). Therefore, the point (0,0) is in the shaded region. The point (0,0) is below the boundary line y = -0.5x+4
So this is another way to see that the shaded region is below the boundary line.
If the measure B is 40 degrees, what measures can A and C be? Select the three correct answers.
Answer: 30 and 110,
55 and 85,
70 and 70
Step-by-step explanation:
B, C, E
The Paks bought 4 lunches for $16. The McGills bought 6 lunches for $24. The Manns bought 15 lunches for $60. The relationship of lunches to cost is a proportional relationship. What is the constant of proportionality? A. B. C. 4 D. 64
Answer:
$4
Step-by-step explanation:
The equation for direct proportionality =
y = bx
where y = dependent variable
b = constant
x = independent variable
There is positive proportionality is two variables are positively related to each other.
In this question, price of lunches is the dependent variable while number of lunches is the independent variable
$16 = b4
Divide both sides by 4 to find b
b = $4
Please help!
Also please include an explanation so I know how to do it next time.
Answer:
48 stuff animals 24 myster boxes
Step-by-step explanation:
this is because the stuff animals have a greater than half the amount of getting. So you would then to 74/3. this is because if we split the total into thirds, we know that the stuff animals will have more than half. which will equal to 2/3. so will divide 74/3 we will 24, but since the stuff animals is 2/3 more likely, add or multiple 24 by 2 or add 24 again. giving us 48. then the remaining amount left of 74 will be left for the mystery boxers.
giving use the ration of 48:24
Write an equation that represents the line.
Use exact numbers.
PLEASE HELP! SEE PICTURE!
Answer:
uhhhhhhhhh
Step-by-step explanation:
ill mark u brainliest
Answer:
The slope represents the number of cookies sold for each dollar.
Answer: it is C
Step-by-step explanation: each point is a number boxes sold and some profit
Solve using long division
(12y^4-5y^2+y+7) ÷ (3y^2-2)
Please show steps at least a little please and thank you sm
Answer:
Ill be back let me solve it
Step-by-step explanation:
Does anyone know how to this cause I need to know how to do it.
Answer:
(a)= 10
(b)=4
Step-by-step explanation:
the lines are absolute value, so anything in the lines will be positive
4
The diagram shows a shape.
12 cm
Diagram NOT
accurately dre
6 cm
9 cm
x cm
The shape has area 129 cm
Work out the value of x.
Answer:
x = 7 cm
Step-by-step explanation:
12x9 + 3x = 129
108 + 3x = 129
3x = 21
x = 7 cm
The value of x will be;
⇒ x = 2.3 cm
What is mean by Rectangle?A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.
Given that;
The shape has area 129 cm².
Now,
Since, The shape has area 129 cm².
And, The Length of the large rectangle = (12 + x) cm
And, The width of the rectangle = 9 cm
We know that;
The area of rectangle = Length × Width
⇒ 129 = (12 + x) × 9
⇒ 129/9 = 12 + x
⇒ 14.3 = 12 + x
⇒ x = 14.3 - 12
⇒ x = 2.3 cm
Learn more about the rectangle visit:
https://brainly.com/question/25292087
#SPJ2
Hadley runs several times around the
track. One lap around the track is
equal to 0.15 miles. She then runs 0.4
miles home for a grand total of 1.75
miles. Write an equation to help you
determine the number of laps Hadley
ran around the track.
#21
08
The answer is 9.
1.75 - 0.4 = 1.35
1.35 ÷ 0.15 = 9
how do you solve these 3?
[tex] \sqrt[4]{64} [/tex]
[tex] \sqrt[3]{ -189} [/tex]
[tex] \sqrt[3]{72} [/tex]
Also the dash for the second one is Negative 189.
Please Answer, thanks. no links, please.
Answer:
1)2.83
2)-5.74
3)4.16
I hope this help
In ΔBCD, the measure of ∠D=90°, the measure of ∠B=75°, and DB = 93 feet. Find the length of BC to the nearest tenth of a foot.
Answer:
89.8 feet
Step-by-step explanation:
In ΔBCD, the measure of ∠D=90°, the measure of ∠B=75°, and DB = 93 feet. Find the length of BC to the nearest tenth of a foot.
We would solve the above question using Sine rule
The formula is given as:
DB/sin D = BC/sin B
93/sin 90 = BC/sin 75
We cross multiply
sin 90 × BC = 93 × sin 75
BC = 93 × sin 75/sin 90
BC = 89.83 feet
Approximately BC = 89.8 feet
A 50.0 gram sample decays to 25 grams in 14.4 seconds. What is its half-life?
Answer:
The half life is 14.4 seconds because the half life is the time it takes for half of a sample to decay.
Hope this helps!
Calculate the area of the following parallelogram:
Answer:
a=40
Step-by-step explanation:
the formula for parallelograms is
a=base x height
which the base is 10 and the height is 4
so then
a= 4 x 10
Answer:
30 in squared
Step-by-step explanation:
took test! brainlest? <3
if the income tax rate is 4%, determine the amount of income tax paid on income of $20,000.
Answer: $800.
Step-by-step explanation:
To find the income tax of $20,000 simply multiply 20,000 by the decimal of 4%.
20,000 x 0.04 = 800
Find the solution to the equation.
7m = 112
Answer:
m= 16
Step-by-step explanation:
Need help will give brainlest please this practice test makes no sense need explanation
Answer:
D
Step-by-step explanation:
Well, I can tell the answer just by looking:
- The shape moved counterclockwise by one quadrant
- The shape got SMALLER
- Rotations go counterclockwise. So that's a 90 degree rotation.
- Shape gets smaller so it's dilated by a number less than 1. Dilate by 1/2
pls help i need to know 9587694769*548267382 in a whole number without e+{number} at the end
Answer:
5256620310414725120
___________________
Hope this helps
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A parallelogram has an area of 37.72 m² and a height of 4.6 m. How long is the base of the parallelogram?
Answer:
8.2m
Step-by-step explanation:
Answer:
the answer is 8.2
Step-by-step explanation:
I took the k12 quiz
Write the equation of a line in slope intercept form of a line that has a slope of 3/2 and contains (6, -2).
The cost of a pen and a pencil used to be the same, but recently the cost of the pen was increased by ₹4, whereas, the cost of pencil became ₹6 less than 5 times its original value. After the revised cost, if the pen was more expensive than the pencil, what could have been the possible original value of both the products, if the initial price was a natural number?
Answer:
The possible original values of both products are ₹2 or ₹1
Step-by-step explanation:
The question is a word problem leading to simultaneous equations
Let 'x' represent the initial value of the pen and pencil
Therefore;
The final cost of the pen = x + ₹4
The final cost of the pencil = 5·x - ₹6
x + ₹4 > 5·x - ₹6
∴ ₹4 + ₹6 > 5·x - x
₹10 > 4x
₹10/4 > x
₹2.5 > x
Given that x is a natural number, therefore
x ≤ ₹2
The possible original values of both products are ₹2 or ₹1
The possible original value of both products is ₹ 1 and ₹ 2.
The question is a word problem
Let x represent the initial cost of the pen and pencil since they were initially the same price.
When the costs of the pen was increased by ₹4, its new price is x' = x + 4.
Also, the cost of pencil became ₹6 less than 5 times its original value. So, the new price of the pencil is x" = 5x - 6.
After the revised cost, if the pen was more expensive than the pencil, then we have x' > x".
So, x + 4 > 5x - 6
x - 5x > - 4 - 6
-4x > - 10
x < -10/-4
x < 2.5
Since the initial price of the both products was a natural number, the two natural number less than 2.5 are 1 and 2.
So, the possible original value of both products is ₹ 1 and ₹ 2.
Learn more about word problems here:
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Graph: y = (x+3)²- 4
x-int=-5, y-int=5 and vertex is at (-3,-3)
With a coupon you can get a discount of $12 for a pair of shoes that have an original price of $84. What is the percentage of the discount?
A family charges a trip to the zoo on a credit card. The simple interest rate is 12%. The charges are paid after 3 months. What is the total amount paid for the trip? Round your answer to the nearest hundredth.
Answer:
$180.806
Step-by-step explanation:
The computation of the total amount paid for the trip is shown below;
As we know that
Simple interest = Principal × rate of interest × time period
= (67.70 + 62.34 + 45.50) × 12% × 3 months ÷ 12 months
= 5.2662
Now the amount is
= Principal + simple interest
= 175.54 + 5.2662
= $180.806
