Answer:
d
Step-by-step explanation:
What value of b will cause 16x ^ 2 + bx + 4 = 0 to have one real solution ?
Answer:
b = 16
Step-by-step explanation:
16*x + b*x + 4 = 0
Solving for x we get:
x₁,₂ = - b ± √ b² - 4*a*c ] / 2*a (1)
If we take a look to the square root
√ b² - 4*4*16 = √ b² - 256
if we make √ b² - 256 = 0
b² = 256 ⇒ b = 16
Then equation (1) becomes:
x₁,₂ = ( - 16 ± 0 ) / 32
x = - 1/2
If the monthly cost for 14 HCF is $48.70, what is the monthly cost for 10 HCF?
Answer:
$34.78
Step-by-step explanation:
first, we need to find the value of 1 HCF, so we divide $48.70 by 14, giving us the result of 3.47857143. (rounding that turns out to be 3.48.
next, we need to multiply the cost of 1 HCF by 10, so 3.48 * 10 = 34.78
The length of the side of a square is 8 V12 in. What is the area of the square? es A) 16 V12 in? B) 64 V12 in? C) 384 in2 D) 768 in2
can you guys help this? thanks
Answer:
D
Step-by-step explanation:
We are given that the side of a square is: 8√12.
And we want to find the area.
The area of a square is given by:
[tex]A=s^2[/tex]
Where s is the side length. Remember that all side lengths in a square are equivalent.
Therefore, by substitution, we acquire:
[tex]A=(8\sqrt{12})^2[/tex]
Evaluate. We can expand:
[tex]A=(8)^2(\sqrt{12})^2[/tex]
Simplify:
[tex]A=64(12)=768\text{ in}^2[/tex]
Hence, our final answer is D.
The total distance around Regina rectangular shaped bedroom is 300 feet, the length of the room is 80 feet. What is the area of Regina bedroom
Answer:
5600 square feets
Step-by-step explanation:
Let [tex]l, b[/tex] denote length and breadth of the rectangular shaped bedroom.
The total distance around Regina rectangular shaped bedroom is 300 feet.
[tex]2(l+b)=300\\l+b=150[/tex]
The length of the room is 80 feet.
Put [tex]l=80[/tex]
[tex]80+b=150[/tex]
[tex]b=150-80=70[/tex] feets
Area of the rectangular shaped bedroom [tex]=lb=80(70)=5600[/tex] square feets.
Joshua and Rita shared some marbles in the ratio of 2:3. If Joshua had 24 marbles, how many did Rita have?
PLEASE ANSWER QUICKLY THIS IS URGENT
Answer:
36 marbles
Step-by-step explanation:
24/2=12
12*3=36
Liam puts $800 in a savings account at an annual interest rate of 2%. If Liam does not withdraw or deposit any money, what is the interest that Liam will earn at the end of six months?
Answer:
$8
Step-by-step explanation:
Which binomial is a factor of 9x2 – 64?
3x – 8
9x – 32
3x + 32
9x + 8
Answer:
It’s the first one, 9x-32
Step-by-step explanation:
Maybe
PLS HELP! THANKS! EXTRA P
Answer:
Step-by-step explanation:
I don't know how to help you by the way you're really pretty
The expression x[(y - w) + z] is equivalent to
Answer:
Step-by-step explanation:
we need to remove the parenthesis first
x(y-w+z)=xy-xw+xz
can someone please answer this with step by step i really need help thank you
Answer:
40°
I hope it will be useful.
Step-by-step explanation:
Angles on the same side of the transversal are equal.
Answer:
x=40
Step-by-step explanation:
If m and n are parallel (symbol ||) then the blue angles must be equal.
In other words, 120 must be 3x.
Hence the solution for x is 120 divided by 3, which is 40.
Identify binomials from the following expressions :
12p + q, 13m - n + r, 15xyz, x + y - 6z
Answer:
The First one
Step-by-step explanation:
Binomial is an expression with two terms.
Answer:
12p+q
Step-by-step explanation:
12p+q - binomial
13m-n+r - trinomial
15xyz - monomial
x+y-6z - trinomial
Solve the proportion (w+12)/(3w+5)=3/4
Answer:
[tex]w=6.6[/tex]
[tex]18.6:24.8::3:4[/tex]
Step-by-step explanation:
[tex]As\ we\ know\ that,\\(w+12):(3w+5)::3:4\\By\ the\ proportion\ method\ of\ multiplying\ the\ means\ and\ the\ extremes,\\we\ get,\\(w+12)*4=3*(3w+5)\\4w+48=9w+15\\48-15=9w-4w\\33=5w\\[/tex]
[tex]w=33/5\\w=6.6[/tex]
[tex]By\ substituting\ the\ value\ of\ w\ in\ the\ proportion. you\ get:\\(6.6+12)/(3*6.6+5)=3/4\\18.6/24.8=3/4\\18.6:24.8::3:4[/tex]
Plz help with number 10
125000 to 117500 what is the percent decrease?
Answer: It is a 6 percent decrease
Step-by-step explanation:
125,000-117,500=7,500
(125,000)(0.06)=7,500
This is 8th grade math 5y+2×5h=4h Solve for h
Answer:
h= −5/6y (negative 5 y over 6)
Step-by-step explanation:
5y+(2)(5)h=4h
Step 1: Add -4h to both sides.
10h+5y+−4h=4h+−4h
6h+5y=0
Step 2: Add -5y to both sides.
6h+5y+−5y=0+−5y
6h=−5y
Step 3: Divide both sides by 6.
6h/6=−5y/6
h=−5/6y
Answer:
h = - 5y/ 6
Step-by-step explanation:
5y + 2 * 5h = 4h
Using BODMAS
Perform multiplication first
5y + 10h = 4h
Collect like terms
5y = 4h - 10h
5y = - 6h
Divide both sides by - 6
5y / - 6 = - 6h / - 6
h = - 5y/ 6
Mr. Brown sold his house through real estate agent to whom he paid a commission of 7% of the sale price. Lf the sale price of the house was $90,500, how much commission did Mr. Brown pay?
Answer:
The commission is $6335
Step-by-step explanation:
Step one:
given
The sale price of the house was $90,500
the commission is 7% of the sale price
Required
The amount of the commission
Step two:
the amount of the commission can be calculated as follows
[tex]=7/100*90500\\\\=0.07*90500\\\\=6335[/tex]
Select the ratio that is equivalent to the ratio 5 to 9.
25 to 9
5 to 45
10 to 36
25 to 45
What is the domain of f(x)=3^x
A. All real numbers greater than 3
B. All real numbers greater than or equal to 3
C. All nonnegative real numbers
D. All real numbers
Answer:
i think the answer is a. but not for sure
hey, if anyone could h3lp me with this it would b gr8 !!
Step-by-step explanation:
AB=OB-OA
AB=[4,-2]-[-4,6]
AB=[8,-8],|AB|=8units
BC=OC-OB
BC=[-6,-4]-[4,-2]
BC=[-10,-2],|BC|=√104
AC=OC-OA
AC=[-6,-4]-[-4,6]
AC=[-2,-10],|AC|=√104
d. Based on the lengths of the sides,the triangle is isosceles
Which table represents a linear function?
Answer:
The first one
Step-by-step explanation:
Answer:
Only the first table represents a linear function. In order to be in linear function, the graph of the function must be a straight line. Plotting the graph, by taking the data points from the given table and then plotting in the cartesian coordinates system, several graphs are generated.
Step-by-step explanation:
BRAINLIEST PLZZZ
Please help look at the picture attached need answers ASAP
A zookeeper recorded the feeding schedule for a baby rhinoceros for 20 weeks. The table and scatterplot show the percentage of the baby rhinoceros’s body mass that was used to determine the amount of food given at each feeding as a linear function of its age in weeks.
Answer:6%
Step-by-step explanation:
Need help! I think this is pretty easy but I'm missing something
Answer:
I think you have it right!
Step-by-step explanation:
if not then try to add each angle to see if you get 288
What is -5 5/8 + 3 1/2
A: -3 1/8
B: -2 1/2
C: -2 1/8
D: -7/8
Answer:
The answer is -2 1/8 I used an app called Cymath to figure this out it goes down step by step.
Step-by-step explanation:
Hope I helped! :)
Ab(-2 13)(0 3) CD (-5 0)(10 3) parallel lines identify please help
Answer:
they are not parallel
Step-by-step explanation:
they intersect eachother
Jayce and Rylee are selling candy bars for a school fundraiser. Rylee sold 84 candy bars and raised $210. If Jayce raised $70, how many candy bars did he sell?
Answer:
Jaycee sold 28 candy bars
Step-by-step explanation:
Jayce and Rylee are selling candy bars for a school fundraiser. Rylee sold 84 candy bars and raised $210. If Jayce raised $70, how many candy bars did he sell?
From the above question:
$210 = 84 candy bars
$70 = x candy bars
Cross Multiply
210 × x = 70 × 84
x = 70 × 84/210
x = 28 candy bars
Therefore, Jaycee sold 28 candy bars
Solution is (-3,7), what are the linear equations
Answer:
[tex]y=2x-1[/tex]
Step-by-step explanation:
From the question we are told that
equation has a solution (-3,7)
Generally which means solution pass this point
Mathematically solving for slope and intercept
[tex]y=mx +b[/tex]
[tex]7=m(3) +b[/tex]
[tex]b=7-3m[/tex]
Generally we assume a slope as slope intercept pair a numerous
[tex]m=2[/tex]
Mathematically solving
[tex]b=7-3m[/tex]
[tex]b =7-3(2)[/tex]
[tex]b =1[/tex]
Giving the equation to be
[tex]y=2x-1[/tex]
there are 200 cards in a box luis wants to sell 35% how much does she want to sell
Answer:
%35 of 200 is 70
Step-by-step explanation:
so it maybe 70
am i right
Answer:
70% percent of cards
Step-by-step explanation:
If I am wrong pls correct me
PLEASE HELPPP I REALLY NEED IT I DONT UNDERSTAND PART C PLEASE SOMEONE EXPLAIN TO ME AND I WILL GIVE BRAINLEST THANK YOU SM!!!!
Step-by-step explanation:
1 mile is 1760 yards
1 min is 3600 seconds
[tex] \frac{6yards}{second} \times \frac{1mile}{1760yards} \times \frac{3600seconds}{1min} = \frac{?}{?} [/tex]
then you treat the units as variables and solve. I hope I did this right heh...
A car drives 450 mi in 10 h.
How fast is the car going
(write the answer as mph)
Answer:
45 mph
Speed =distance ÷ time
X=450÷10
X=45