Factorise x2+3x-4. please
Answers
Answer:
(−1) (+4)
Step-by-step explanation:
Related Questions
Nancy received a birthday gift of $35. She decided to
use this money to start a savings account and then
deposited $5 into the account every week.
Which equation represents the relationship between
w, the number of weeks she has saved, and s, the
total amount saved?
s = 35W - 5
s= 5W - 35
S = 35W + 5
s = 5W + 35
Answers
Answer:
Everybody's laughing in my mind
Rumors spreading 'bout this other guy
Do you do what you did when you did with me
Does he love you the way I can
Did you forget all the plans that you made with me?
'Cause baby I didn't
That should be me, holding your hand
That should be me, making you laugh
That should be me, this is so sad
That should be me
That should be me
That should be me, feeling your kiss
That should be me, buying you gifts
This is so wrong
I can't go on
Till you believe
That should be me
That should be me
When you fill your coffee at a gas station, you're supposed to get 8 ounces of coffee with a standard deviation of .7 ounces. A random sample of 50 "8 ounce" coffees is collected and measured and the mean was found to be 7.8 ounces.
Answers
Answer:
The answer is below
Step-by-step explanation:
When you fill your coffee at a gas station, you're supposed to get 8 ounces of coffee with a standard deviation of .7 ounces. A random sample of 50 "8 ounce" coffees is collected and measured and the mean was found to be 7.8 ounces. a) Find a 90% confidence interval. b) Interpret the confidence interval in the context.
Solution:
The confidence = 90% = 0.9, mean (μ) = 7.8 ounces, standard deviation (σ) = 0.7 ounces, sample size (n) = 50
α = 1 - C = 1 - 0.9 = 0.1
α/2 = 0.1 / 2 = 0.05
The z score of α/2 is the same as the z score of 0.45 (0.5 - 0.05) which is equal to 1.65
The margin of error (E) is given by:
[tex]E = z_\frac{\alpha}{2} *\frac{\sigma}{\sqrt{n} } \\\\E=1.65*\frac{0.7}{\sqrt{50} } =0.16[/tex]
The confidence interval = μ ± E = 7.8 ± 0.16 = (7.64, 7.96)
b) This means that we are 90% confident that any selected coffee has a weight between 7.64 ounce to 7,96 ounce
Is the point on the line ?
Answers
Answer:
i think the answer is no i used tge desmo graphing calculator and tht point wasnt on it
115
11.5
Find the area of the shaded region
Answers
Answer:
227 units²
Step-by-step explanation:
Area of rectangle
a = (2 * 11.5) * (4 * 11.5)
a = 1,058
Area of circles
a = 2(π * 11.5²)
a = 830.9512568745
Shaded area
a = 1,058 - 830.9512568745
a = 227.0487431255
a ≈ 227
a) (-6)* = -6° b) (-3) = -3$ c) 82 = (-8)
[tex]( 5 + 4 {)}^{2} = {5}^{2} + {4}^{2} [/tex]
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Answer:
pues yo pienso que es 8 es que no se muy bien
Mhanifa please help this is late and I don’t get it
Answers
Answer:
Sin k jajs
Step-by-step explanation:
What is the value of -2(x+5) Please I'm in need of help
Answers
Answer:
-2x - 10
Step-by-step explanation:
-2 x X = -2x
-2 x 5 = -10
Put them together to get:
-2x - 10
Answer:
-2(x) or (-2×x)
then you get = -2x
then you take
-2×+5 or (-2×5) you'll get = -10
last but not least you join the equation
and the answer will be
= -2x-10
(05.06 LC)
Which graph best represents a decreasing function?
A graph shows a non linear curve that joins the ordered pairs 0, 0, and 3, 1.5, and 5, 5.
A graph shows a straight line that joins the ordered pairs 5, 0 and 5, 5.
A graph shows a non linear curve that joins the ordered pairs 0, 5, and 1, 2, and 5, 0.
A graph shows a straight line that joins the ordered pairs 0, 3 and 5, 3.
Answers
A graph shows a non linear curve that joins the ordered pairs 0, 5, and 1, 2, and 5, 0.
f(x)=x2. what is g(x)?
Answers
Answer:
A
Step-by-step explanation:
Hi again. In this case, the graph enlarges. Coefficient of x is <1. Try to substitute x = 3 to (1/3x)^2 and (1/9x^2)
(1/3 * (3))^2=1
-2/5 + 1 1/3 find the sum
Answers
Answer: =14/15
Step-by-step explanation: Hope this help :D, Can I have a Brainliest I really needed it please!
plz help i mark brain thing
Answers
What is the maximum height of of Anna's golf ball? The equation is y=x−0.04x2.
Answers
Given:
The height of a golf ball is represented by the equation:
[tex]y=x-0.04x^2[/tex]
To find:
The maximum height of of Anna's golf ball.
Solution:
We have,
[tex]y=x-0.04x^2[/tex]
Differentiate with respect to x.
[tex]y'=1-0.04(2x)[/tex]
[tex]y'=1-0.08x[/tex]
For critical values, [tex]y'=0[/tex].
[tex]1-0.08x=0[/tex]
[tex]-0.08x=-1[/tex]
[tex]x=\dfrac{-1}{-0.08}[/tex]
[tex]x=12.5[/tex]
Differentiate y' with respect to x.
[tex]y''=(0)-0.08(1)[/tex]
[tex]y''=-0.08[/tex]
Since double derivative is negative, the function is maximum at [tex]x=12.5[/tex].
Substitute [tex]x=12.5[/tex] in the given equation to get the maximum height.
[tex]y=(12.5)-0.04(12.5)^2[/tex]
[tex]y=12.5-0.04(156.25)[/tex]
[tex]y=12.5-6.25[/tex]
[tex]y=6.25[/tex]
Therefore, the maximum height of of Anna's golf ball is 6.25 units.
Pythagorean Theorem Digital Escape Puzzle 5,Need Answer Immediately!!!
Answers
Answer: a = 6.53
Step-by-step explanation:
Answer: its HCFD i just did it
Step-by-step explanation:
base, 6 millimeters;
height, 4 millimeters
Answers
Answer:
You would multiply them which would be 24 brainliest?
Step-by-step explanation:
simplify 3+4(y-7)+5y
Answers
Answer:
9y-25
Step-by-step explanation:
Answer:
9y-25
Step-by-step explanation:
Math
pleaseee help mee!
..
Answers
Answer:
Step-by-step explanation:
what is 4.13 to the nearest tenth
Answers
Answer:
4.1
Step-by-step explanation:
NEED HELP will give BRAINLY
Answers
Answer:
y=1x+8
Step-by-step explanation:
The best way to remember the formula is y=mx+b aka (your mom's ex bf)Just by looking at the slope you can automatically tell it's moving by one so in your formula, 'm' is the slope.Add 1x to replace 'm' or you can leave x alone because x is already one, your choice.b is the indication on where your slope started in the y-axis. In this case, by looking at the y-axis on the graph, the slope starts at 8 so that will be your b.Therefore, your answer is y=1x+8Mario answered 20 out of 25 questions correct on his test. What percentage did he get
correct?
A 20%
B. 50%
C. 60%
D.80%
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he got 80% on his test
Jimmy,bobby,johnny, and brenda are arguing over how to best estimate 3,186 ÷ 79
Answers
Answer:
40.3291139241
Step-by-step explanation:
no, thank you
Answer: You get 40.36 first. If it is by nearest tenth, then 40.4. Nearest ten, then 40
Isaac and his wife received an award of $ 9,000 each for their work as researchers.
Isaac invests his money and earns 9% annual simple interest while his wife invests it at 9% compound interest per year. How much more money did Isaac's wife make than Isaac after 10 years?
F $5,500.00
G $3,455.50
H $4,206.30
J $4,998.50
Answers
Answer:
H
Step-by-step explanation:
I don't know if I did it wrong because I got 4,206.27 but I probably did
How many solutions does this equation have?
one solution?
infinite solutions?
no solutions?
Explain how you determined your answer.
9(w - 9) - 2 = -7w + 7(w - 8)
Answers
Answer:
The given equation having only one solution i.e., "w = 3". A further explanation is provided below.
Step-by-step explanation:
The given equation is:
⇒ [tex]9(w-9)-2=-7w+7(w-8)[/tex]
By opening the brackets, we get
⇒ [tex]9w-81-2=-7w+7w-56[/tex]
⇒ [tex]9w-83=-56[/tex]
On adding "83" both sides, we get
⇒ [tex]9w-83+83=-56+83[/tex]
⇒ [tex]9w=27[/tex]
⇒ [tex]w=\frac{27}{9}[/tex]
⇒ [tex]=3[/tex]
It for some reason won’t let me put the whole page
Answers
Which is the best estimate of the amount of juice a drinking glass holds? [can someone also help me with my test]
Answers
hammmmmmmmmmmmmmmmmmmmmmmmmmmjoblessness lam Ian jaw orc Levi joblessnesssndhdhdhdhxxjsjddhxhusjxdhhdjxhxddjdjddx jxshjzgxssjusdjdhd xhxbxjxhxjsjdxjxjdjshdhdhdjxhxhxhxhxjddsnsjhdjddjhsjxvxjsgskddjxuxhzhshshxjbxnzjxhsjdjxjsuhhjsndhdjjxdjdhdhcbxjxjjsishsdjd
The current and voltage of new ultrathin CIGS solar cells vary based on temperature. The graph shows the current, in milliamps per square centimeter (mA/cın”), and voltage, in volts (V), at
various temperatures, in degrees Kelvin (K)
Which of the following best estimates the rate of change of voltage, in volts per degree Kelvin (V/K)?
Answers
what two numbers that can be added to -13 but also be multiply to 36
Answers
Answer:
-9,-4
Step-by-step explanation:
Answer:
the required numbers are -4 and -9.
Step-by-step explanation:
-9×-4=36
-9+(-4)=13
Find the measures of the exterior angles of the polygon.
Answers
Answer:
D : 125°,125°,55°,55°
Step-by-step explanation:
Finding the interior angles makes the question easier.
The two base angles for b1 are both 125°, and the two base angles for b2 are both 55°.
Because a straight line is 180°, we can find the exterior angles by subtracting the interior angles from 180°.
180°-55° = 125°
180°-125° = 55°
help please please please
Answers
Answer:
A
Step-by-step explanation:
because every 3 bats he hit 1
C
3 m
4 m
What is the length of the hypotenuse?
Answers
Answer:
5 meters
Step-by-step explanation:
The values given, 3 and 4, are the legs a and b. The hypotenuse is the third and longest side, c.
To find the length of the hypotenuse, use the formula a² + b² = c².
Substitute our values for a and b and solve.
a² + b² = c²
3² + 4² = c²
9 + 16 = c²
25 = c²
√25 = √c²
5 = c
The hypotenuse is 5 meters long.
I hope this helps <3
Given AE ≈ EC, for what value of x is quadrilateral ABCD a parallelogram?
Answers
Answer:
X = 1/3 (to make it short) plz brainliest
Step-by-step explanation: