Answer:
For the inequality to be true, both factors must have the same sign or one factor must be 0. The zeroes occur at x = − 2 , x = 5 . Thus, our intervals will be ( − ∞ , − 2 ] , [ − 2 , 5 ] , [ 5 , ∞ ) Take a sample point from each. A sample point of − 3 for the first interval yields ( − 3 + 2 ) ( − 3 − 5 ) = ( − 1 ) ( − 8 ) = 8 , so the first interval satisfies the inequality. Choosing a sample point of x = 0 for the second interval, we receive ( 2 ) ( − 5 ) = − 10 , so this interval will not satisfy the equality. A sample point of x = 6 for the third interval gives us ( 8 ) ( 1 ) = 8 , so the third interval satisfies. Thus, the domain that satisfies the inequality is ( ∞ , − 2 ] & [ 5 , ∞ ) On the number line , you would draw and fill in a circle above -2, and draw an arrow from that point to the left. You would then draw and fill in a circle above 5, and provide a similar arrow to the right (i.e. towards positive infinity). We fill in these circles because the intervals are closed at these points, i.e. these points satisfy the inequality. If we instead had ( x + 2 ) ( x − 5 ) > 0 , the circles would be empty because those points would not satisfy.
pls help
will mark brainliest to who answers first
Answer:
y=10
x=10
Step-by-step explanation:
THis is isosceles triangle
180-90-45=45
used pyagorous therum thingy
10over2= square root of 200
so c2=asquare X b squared in this case x=y
so 200/2 = 100
x=100square
y=100 square
simplify = 10
A right rectangular prism has a volume of
[tex] {6x}^{3} - {3x}^{2} - 45x[/tex]
What are expressions for the length, width, and height?
Answer:
3x, 2x + 5, and x - 3
Step-by-step explanation:
Since the given figure is a 3-dimensional shape, we know that there must be three zeroes.
Our equation is:
6x³ - 3x² - 45x
First, we can factor out an x:
x (6x² - 3x - 45)
From here, we can see that by factoring out a 3:
3x (2x² - x - 15)
Now, after completing the square and factoring:
3x (2x + 5) (x - 3)
These are our three expressions.
Please help!! Im being timed SEE BELOW!!
Answer:
The answer is
15=B
16=C
17=D
18=B
19=D
20=D
I am a math teacher If you need any explanation you can communicate with me on Whats on this number +201557831028
Given that
y
= 8 cm and
θ
= 34°, work out
x
rounded to 1 DP.
Answer:
Step-by-step explanation:
if y is hypotonuse and x is opposite side:
sin 34=x/8
8*sin 34=x
x=4.47 (3 sf)
tell me in comment if i interpreted question wrong ._.
Triangle ABC is similar to Triangle PQR what is the value of X in centimeters
Answer:
x=19.5cm
Step-by-step explanation:
15÷10= 1.5
13x1.5
=19.5cm
WHAT WOULD THIS BEE!
Answer:
98
Step-by-step explanation:
It would be the same amount because when the lines are parallel, the corresponding angles will also be the same.
We can tell the difference between the two types of angles (Supplementary and complementary) 98 and 82 would be the two types of angles.
So, the angle measure would be 98.
What is perimeter of the semi circle?
Answer:
54.22 mm
Step-by-step explanation:
Find the circumference of the circle and then divide it by 2.
We start with the formula for the circumference for the circle:
C = 2πr
To find r, divide 22 by 2:
22/2=11
Now find the cicumference:
C = 2πr = 2(3.14)(11) = 108.46 mm
NOW, to find the perimeter of the semicircle, divide the circumference by 2:
108.46/2 = 54.22 mm
A parallelogram has a height of 14 in and a base
that is 2 in long. What is the area of this
parallelogram?
HURRY PLEASE
Answer:
28 in^2
Step-by-step explanation:
Given,
Height of the parallelogram = 14 in
Base of the parallelogram = 2 in
Therefore, area of the parallelogram = base × height
= 2 in × 14 in
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 28 {in}^{2} (ans)[/tex]
x2 + 7x + 12
What is the answer someone please help
Answer:
(x + 3) (x + 4)
What is a, the initial amount, for the function: f(x) = 300(1.16)*?
====================================================
Explanation:
One general template of exponential functions is
f(x) = a*(b)^x
The 'a' is the initial amount, which in this case is a = 300
----------------------
Extra info:
The b is the base of the exponential, which is b = 1.16
The value of b is helpful to determine if you have exponential growth or decay, and how much of either. Because b = 1.16 is greater than 1, it indicates exponential growth. The rate of growth is found by solving 1+r = 1.16 to get r = 0.16, which leads to 16% growth.
Pls help due like- right on
Natalie is shopping for new clothes and does not want to spend more than $65. She buys one dress for $26 and wants to buy a few shirts that cost $13 each.
What is the maximum number of shirts she can buy?
Answer:
Step-by-step explanation:
3 shirts
For Problems 11-12, expand the expressions using the Distributive Property. Then simplify the expressions. 12. 9(3y-5)
Answer:
27y-45
Step-by-step explanation:
9(3y-5)=27y-45
The circumference of a circle is the around it?
Answer:
Yes
Step-by-step explanation:
If Sam drives his car 171 miles in 9 hours, what is his speed
2. Factorise : (i) 9x² + y² + 64 - 6xy +16y - 48x
Answer:
9x² + y² + 64 - 6xy - 16y - 48x
= 9x² - 6xy - 48x + y² - 16y + 64
= 9x² - 6x(y - 8) + y² - 2.8y + 8²
= (3x)² - 6x(y - 8) + (y - 8)²
= [3x - (y - 8)]²
= (3x - y + 8)²
Step-by-step explanation:
Which expressions are equivalent to 7(3/4 x -3)?
Which number is a solution for the
8.
inequality below?
3n< 18
What 8?
There is no 8 in the problem.
The answer is not a specific value for n.
3n < 18
Divide both sides by 3.
3n/3 < 18/3
n < 6
ANSWER: n < 6
What does the answer mean?
It means that n must be less than 6 to make the original inequality a true statement.
HELP WILL MARK BRAINLIEST
The sum of two numbers is x If one of the numbers is 12, what is the other?
12 x
12- *
12 + x
x-12
A road roller with a 55-inch
diameter is traveling at
3 miles per hour. How many
revolutions per minute is
the roller turning? Round
your answer to the
nearest tenth
Answer:
18.34times
Step-by-step explanation:
the explanation is given in the pictures...
The road roller is turning at the rate of [tex]18.3rev/minute[/tex]
To get our answer, first note that
[tex]speed=\dfrac{distance}{time}[/tex]
since the distance travelled by the road roller can be gotten by
[tex]distance= circumference\times revolutions[/tex]
our speed formula can be expressed as
[tex]speed=\dfrac{circumference\times revolutions}{time}[/tex]
making the number of revolutions the subject of the formula, we get
[tex]revolutions=\dfrac{speed \times time}{circumference}[/tex]
carrying out the following substitutions
[tex]speed=3miles/hour=\frac{3\times63360}{60}inches/minute=3168inches/minute\\time=1minute\\circumference=2\times3.14\times\frac{55}{2}=172.7inches[/tex]
we can now calculate the number of revolutions
[tex]revolutions=\dfrac{speed\times time}{circumference}\\\\=\dfrac{3168\times 1}{172.7}\approx18.3rev/minute\text{ (to the nearest tenth)}\\\\[/tex]
Learn more about circumference of circles here https://brainly.com/question/5688156
Tina makes 480 sandwiches. She only makes tuna sandwiches, beef sandwiches, ham sandwiches and cheese sandwiches
Answer:
she will have 120 each sandwich
Step-by-step explanation:
PLS HELP ME PLS I WILL GIVE BRIANLIEST
Answer: BC/BF & M<C
Step-by-step explanation:
silvia compro la misma licuadora que daniela, que costaba $355.5, pero como abonó con tarjeta de credito, le recargaron un 16%, ¿cuanto pago silvia?
Answer:
Costo final= $412.38
Step-by-step explanation:
Dada la siguiente información:
Costo inicial= $355.5
Recargo de la tarjeta= 16% = 0.16
Para calcular el costo final que debe pagar Silvia, debemos usar la siguiente información:
Costo final= costo inicial*(1 + recargo)
Costo final= 355.5*1.16
Costo final= $412.38
Please please help hurry Name each angle in four way ascent cost for the angle is acute right obtuse or straight
Calculate the distance traveled when moving at a rate
of 60mph for 3.5hrs.
Sentence Answer
Answer:
The distance traveled when moving at a rate of 60mph for 3.5 hours is 210 miles.
Hope this helped!
Find the volume of the cone. Use 3.14 for pi.
Answer:
V≈157.08
Step-by-step explanation:
I hope this helps
hey what's
[tex]3 {}^{2} - 2 {}^{2} [/tex]
Answer:
5
Step-by-step explanation:
3² - 2² = 9 - 4 = 5
Answer:
5 is the answer
Step-by-step explanation:
hope it helps
(-2, 3), (3, -2), (1, 3), (0, -2)
DOMAIN
RANGE
Answer:
(-2, 3) = domain -2 = range 3
(3, -2) = domain 3 = range -2
(1, 3), = domain 1 = range 3
(0, -2) = domain 0 = range -2
Step-by-step explanation:
(8c+8)–(c+3)
answer-
Answer:
7c + 5
Step-by-step explanation:
(8c+8)–(c+3)
8c - c = 7c
8 - + 3 = 5
7c + 5
Answer:
7c+5
Step-by-step explanation:
(8c+8)-(c+3)
8c+8-c-3
8c-c+8-3
7c+8-3
7c+5
the nth term of a sequence is n+7
work out the 10th term
Answer:
17
Step-by-step explanation:
Substitute n = 10 into the n th term rule, that is
a₁₀ = 10 + 7 = 17
