Answer:
246 in^2
Step-by-step explanation:
Given data
Length= 8 in
Width= 3 in
Height= 9 in
SA= 2( lw + wh + hl)
substitute
SA= 2(8*3+ 3*9+ 9*8)
SA= 2(24+ 27+72)
SA= 2(123)
SA= 246 in^2
Hence the SA is 246 in^2
find the missing side each triangle.round your answers to the nearest tenth if necessary
Answer:
x = 6
Step-by-step explanation:
The triangle is a right triangle, as denoted by the red square at the bottom, we can use the Pythagorean Theorem to figure out the second side (since we are given the other side and the hypotenuse).
a² + b² = c²
(8)² + b² = (10)²
64 + b² = 100
b² = 100 - 64 = 36
b = ±[tex]\sqrt{36}[/tex]
b = ± 6
But we know that distance is always positive, so
b = 6
I have used b in place of x if you are confused about the variable usage.
Consider each of the following relationships. Which school shows the greatest
rate of change between male and female students?
• In school A, the ratio of male students to female students is 4.1.
In school B, the relationship between the number of female students, y,
and the number of male students, x, is given by the equation y= 1 x.
.
In school C, the number of male and female students are as shown in the
table.
Female students
280
Male Students
1260
1540
Step-by-step explanation:
male plus female so ueah
Plentiful Pies determines its annual profits
in dollars using p(x) = 65x - 0.3x2 where x
represents the numbers of pies sold. If Plentiful
Pies sells 175 pies in a year, what will their
annual profits be?
Answer:
The annual profits will be 2187.5
Step-by-step explanation:
p(x) = 65x - 0.3x^2
I am guessing that the 2 was supposed to be a square.
Simply plug in the number of pies sold:
p(175) = 65(175) - 0.3(175)^2 = 11375 - 0.3*30625 = 11375 - 9187.5 = 2187.5
Select the quadratic equation that has no real solutions. 25x-10x+4=0
Answer:
Step-by-step explanation:
Were there not several equations from which to choose?
The coefficients of 25x^2 - 10x + 4 are {25, -10, 4}. The discriminant is thus b^2 - 4ac, or (-10)^2 - 4(25)(4), or 100 - 400, or -300. Because the discriminant is negative, the quadratic has no real solutions.
The quadratic equation with no real solution is 25x²-10x+4 = 0
What is a quadratic equation?The meaning of quadratic equation is any equation containing one term in which the unknown is squared and no term in which it is raised to a higher power.
Given that, which of the equations have no real solution,
Considering the quadratic equation 25x²-10x+4 = 0
D = [tex]\sqrt{b^{2} -4ac}[/tex]
We know, when √D > 0, real roots
√D = 0, equal roots
√D < 0, imaginary roots
[tex]\sqrt{b^{2} -4ac}[/tex] =
[tex]\sqrt{10^{2} -400} \\\sqrt{-300}[/tex]
Since, the discriminant is less than 0, therefore, its roots are imaginary.
Hence, The quadratic equation with no real solution is 25x²-10x+4 = 0
For more references on quadratic equation, click;
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The square pyramid shown below has a base with sides of 12 units. The vertical height of the pyramid is 15
15
12
What is the length of 8 (the height of one of the triangular faces)?
Round your answer to the nearest tenth.
The length of s is
units
Answer:
your answer will be S= 16.2
Step-by-step explanation:
I hope it helps ^_^
I REALLY NEED HELP!!! PLEEEEEASE
A landscaper needs to fill a path measuring 2 feet by 8 feet with patio stones.
The patio stones are each 1 foot by 2 feet, so the landscaper calculates that she
will need 8 of them.
Before arranging the patio stones, the landscaper wants to look at all her options.
She can not cut or overlap the stones, and they all must fit inside the path area
without any gaps. Two possible arrangements of the stones are shown below.
How many different arrangements are there in total?
Answer:
28
Step-by-step explanation:
You can have 8 1x2 vertical in a row,
7 with two horizontals stacked on top of each other.
9 with 4 horizontal tiles,
10 with 6 horizontal tiles,
1 8 horizontal tiles set,
1+7+1+9+10=28
Hope this helps!
Answer:
28
Step-by-step explanation:
You can have 8 1x2 vertical in a row,
7 with two horizontals stacked on top of each other.
9 with 4 horizontal tiles,
10 with 6 horizontal tiles,
1 8 horizontal tiles set,
you can draw it out
1+7+1+9+10=28
Help me please , I’ll mark brainliest
Answer:
42 feet squared
Step-by-step explanation:
A restaurant offered cooking classes on 24 of the 30 days in November. What decimal is equivalent to the fraction of days in November that classes were offered at the restaurant? Be sure to use the correct place value
Answer:
.8
Step-by-step explanation:
Because 24/30 is 80% so the decimal is .8
The perimeter of a triangle is 26 feet. The second side is twice as long as the first. the third side is 1 foot longer than the second side. What is the length of the 3 sides?
Answer:
5, 10 and 11 feet.
Step-by-step explanation:
Let length of first side be x feet then
second side = 2x feet
third side = 2x + 1 feet.
So we have the equation:
x + 2x + 2x + 1 = 26
5x + 1 = 26
5x = 25
x = 5 feet.
So first side = = 5 feet, second = 10 and third = 11 feet.
A TV costs £400. David pays a deposit of £150.
Express David's deposit as a percentage of the full price of the TV.
Give your answer to 1 decimal place.
Answer:
37.5
Step-by-step explanation:
150/400*100 is the percentage
Answer:
37.5
Step-by-step explanation:
150/400 is .375 * 100 = 37.5
use this formula N/B*100
number divided by base x 100
what does rotation about (-3,-4) mean
Answer:
Step-by-step explanation:
Depends on what kind of rotation you would be doing. But for example, if you are rotating 90 degrees about a point on a graph, your point (x, y) changes to (-y, x). Then another 90 degrees would be (-x, -y).
Algebra 1 need help (Solving exponents equations)
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the exponents and indices.
here, we should remember one thing that,
3 ^3 = 27 and 1/3^x = 3^-x
so we get as,
(3^-3)^4-x = (3^3)^2x-1
==> 3^-12+3x = 3^6x-3
since the base is same that is 3 , we equate their powers.
-12x+3=6x-3
==> 3+3 = 6x+12x
==> 6 = 18x
hence ===> x = 6/18 = 1/3
hence, x = 1/3
1/3b+2/3b-5/6(b+1)
A. 1/6b+5/6
B. 1/6b-5/6
C. 11/6b-5/6
D. 1/6b+1
Answer:
Answer is B.1/6b-5/6
Step-by-step explanation:
I hope it's helpful!
मानसरोवर सुभर जल, हंसा केलि कराहिं
मुकताफल मुकता चुगैं, अब उड़ि अनत न जाहिं। 1।
Answer:
हिंहिं
Step-by-step explanation:
james and elaine share a box of sweet in the ratio 2:3 what fraction of sweets does james receive and elaine receive
Answer: james gets 2/5 of the candy while elaine gets 3/5
Step-by-step explanation:
2/5 + 3/5 = 5/5 = 1 box
I have a D in math. Please help me with this. I need to bring my grade up!! 15 pts!!
Answer:
20 meters thru 80
Step-by-step explanation:
0.8(5)^2=20
0.8(10)^2=80
1/4x + 5 = 25
show your work, someone help!
Answer:
4.7619047619
Step-by-step explanation:
(this could be wrong)
1/4 = .25 add .25 to 5 and then divide 25 by 5.25 to get the answer
Answer:
x=80
Step-by-step explanation:
1/4x + 5 = 25
multiply both sides by 4
x+20=100
subtract both sides by 20
x=80
Help please! would greatly appreciate and give brainliest.
Answer:
Leg opposite the y° is [tex]3\sqrt{39}[/tex], the leg opposite the x° is 7, and the hypotenuse is 20.
Step-by-step explanation:
Through SOHCAHTOA:
[tex]cos y =\frac{adjacent}{hypotenuse} =\frac{3\sqrt{39}}{20}[/tex]
[tex]tan x =\frac{opposite}{adjacent} =\frac{3\sqrt{39}}{7}[/tex]
5(2a-6b+8)
Please helppp
Answer:
10a - 30b + 40
Step-by-step explanation:
Multiply each term inside the ( ) by the 5 outside the ( ).
5 x 2a = 10a
5 x -6b = -30b
5 x 8 = 40
Add the terms together (don't forget that it's negative 30b)
10a + -30b + 40 = 10a - 30b + 40
Please help me !!!!!!!
Answer:
y=ln x+4
Step-by-step explanation:
PLEASE HELP ME ILL GIVE BRAINLIEST IF YOU SHOW YOUR WORK
Answer:
(32/5, -48/5)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsCoordinates (x, y)Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
-4x + 16 = y
2x - 32 = 2y
Step 2: Solve for x
Substitution
Substitute in y: 2x - 32 = 2(-4x + 16)Distribute 2: 2x - 32 = -8x + 32[Addition Property of Equality] Add 8x on both sides: 10x - 32 = 32[Addition Property of Equality] Add 32 on both sides: 10x = 64[Division Property of Equality] Divide 10 on both sides: x = 32/5Step 3: Solve for y
Define original equation: -4x + 16 = ySubstitute in x: -4(32/5) + 16 = yMultiply: -128/5 + 16 = yAdd: -48/5 = yRewrite/Rearrange: y = -48/5Help please!!! Which graph represents a system of equations with NO SOLUTION. Explain how you know.
Answer:graph B
Step-by-step explanation:because if a line is parallel they have no solutions with a certain slope
If two lines intersect then they must have at least a solution
I'll give BRAINLEST. What is the unit for Gradient of Temperature(°C) vs Time(secs)? Show how u got the unit.
Answer: The temperature gradient is a dimensional quantity expressed in units of degrees (on a particular temperature scale) per unit length. The SI unit is kelvin per meter (K/m).
Step-by-step explanation:
Answer:
kelvin per meter (K/M)
Step-by-step explanation:
ik ik.. weird answer
the Temperature Gradient is a dimensional quantity expressed of units of degrees (on a particular temperature scale) per unit length. the SI unit is kelvin per meter (K/M).
2x(3 + 4x) - x +4-(x + 1)
Which expression is equivalent to the expression?
O 8x2 + 4.C + 3
O 8x2 + 4x + 5
O 822 +63 +3
O 8x2 +63 +5
A group of researchers wants to develop an experiment to determine whether a new drug effectively treats cancer. The researchers want to inject the drug in hamsters first to determine whether there are any potential serious side effects.
Part A: what are some possible ethical issues to this type of testing?
Part B: while conducting the experiment, the researchers find the cancer stops spreading, and they declare the new drug is responsible. Is this a good assumption? Explain.
Part A: The animals are used for examining and determining the effect of a particular new drug for the treatment of the diseases and disorders before they are examined over humans. This practice is called as clinical trial.
The ethical issue associated with given type of testing is that animals have right to live and survive. They should not be subjected to the treatment where they experience harm or even death.
Part B: Those assigned to the control take a sugar pill. The only thing you want to vary across groups when you're conducting an experiment is the treatment. Since taking pills is a part of taking medication (the treatment), medical experiments often employ something called a placebo-controlled study where outcomes for those who are randomly assigned to take the medication are compared to outcomes for those who are randomly assigned to take a sugar pill. The sugar pill is expected to have no effect, so it serves as a useful baseline to compare the treatment to.
Have a good day!!!! <3<3
What is the equation of the line that passes through the point (-5, 7) and
has a slope of - 1/5?
Answer:
[tex]y=-\frac{1}{5}x+6[/tex]
Step-by-step explanation:
We have the following equation
y=mx+b
where m is the slope
and b is the y intercept
we know that the slope is -1/5 (or -.2)
which means that so far our equation looks like this
y= -.2x+b
which means we need to solve for b
we know that when x= -5 y= 7 which means we can plug in those values and solve for b
we have
7= (-.2*-5)+b
7=1+b
b=6
which means our equation is as follows
y= -1/5x+6
which of the following equation represents a linear function a. f(x) =6x-3 b. f(x) = 7x(x+1) c.f(x) = x2+3x2 d. f(x) = x2(x-3
Answer:
a
Step-by-step explanation:
b, c, d are all x2 (a real linear equation does not have square or it will become Quadratic equation )
What number when multiplied by 3 gives 207 for the answer
Answer:
207 divided by 3 equals 69
3x69=207
if 10% of 10% is 0.01 whaat is 25% of 25%
10% of 10% is 0.01 then 1% of 1% is also 0.01
the same number of the same number is also 0.01 at this point:
25% of 25% is 0.01.
Look at the coordinate plane below. Among these points, circle the points where x < y (the first coordinate, x, is smaller than the second coordinate, y.)
Answer:
A,T, O,I,R
Step-by-step explanation: