HELP!
30 + 40
A. (10 + 3)(10 + 4)
B. (10 × 3)(10 × 4)
C.10 + (3 × 4)
D.10(3 + 4)
Answer:
D
Step-by-step explanation:
Distribute 10 in the equation
10 x 3 + 10 x 4 = 70
Answer D. 10(3+4)
10(3+4)
30+40
Professor shortcut records his grades using only his students first and last initials. What is the smallest class size that will definetly force Pro . to use a different system
Answer:
Step-by-step explanation:
There are 26 possibiliteis of the first and last initials. So there are [tex]26\times 26[/tex] different initials.
So the smallest class size to ensure the Prof to use different system is [tex](26\times 26)+1[/tex] since there must be two people in this class with the same first and last initials.
91 more than the square root of a number
Answer:
Step-by-step explanation:
y = x 2 + 91
Explanation:
Let the number be x
, then Square of the number is x ^2
91 more than the square of a number" will be x^ 2 + 91
So, we can write it as an algebraic expression with two variables as :
y = x ^2 + 91
HELP PLS. Write an inequality that represents the missing dimension x. The area is less than 18 square centimeters.
Answer:
The area of trapezoid is:
A = 1/2(8 + 4)*x = 6xSince the area is less than 18 cm², the inequality is:
A < 18 or6x < 18Simplify by dividing both sides by 6:
x < 3Area of trapezoid
1/2(sum of parallel sides)(height)1/2(8+4)x12x/26xNow
6x<18x<3cmTwo wine tasters rate each wine they taste on a scale of 1 to 5. From data on their ratings of a large number of wines, we obtain the following probabilities for both tasters' ratings of a randomly chosen wine. Taster 1's rating for a wine is 3. What is the conditional probability that Taster 2's rating is higher than 3
HELP ME PLSSSSSSSSSSSSSSSSSSSSS
Answer:
Step-by-step explanation:
You have to be assured that x really is even. In this case (and the question has a flaw in it) , you assume that x is even. Normally you would multiply x by 2 to get 2x. Now you know it is even, but it is the number not required of you.
So we will assume it is even.
x + x + 2 + x + 4 Combine like terms
x + x + x = 3x
2 + 4 = 6
Answer: 3x + 6
Determine the domain of the following function:
Step-by-step explanation:
2x-18 ≥ 0
2x ≥ 18
x ≥ 9
and
3x -27 ≠ 0
3x ≠ 27
x ≠ 9
so, the answer is <9 ; +oo >
[tex]2x^{2} -4x +2[/tex]
[tex]2 {x}^{2} - 4x + 2 \\ \\ 2(x {}^{2} - 2x + 1 )\\ \\ 2(x - 1) {}^{2} [/tex]
2x² -4x + 2
Solution:-▶️2x² - 4x + 2
▶️2 (x² - 2x + 1)
▶️2 (x-1)²
Answer:-=> 2(x−1)²
Marcia, an experienced bungee jumper, leaps from a tall bridge and falls toward the river below. The bridge is 155 feet above the water and Marcia's bungee cord is 80
feet long unstretched. When will Marcia's cord begin to stretch? Round your answer to two decimal places.
Answer:
Marcia's cord will begin to stretch after [tex]2.24\:\rm{s}[/tex].
Step-by-step explanation:
The expression used to find displacement is given as,
[tex]s=ut+\dfrac{1}{2}at^{2}[/tex]
The initial velocity of Marcia before leaping is zero, so [tex]u=0\:\rm{m/s^{2}}[/tex].
Marcia travels under the influence of gravity and fall freely so the acceleration due to gravity is only acceleration responsible for her movement.
The value for [tex]g[/tex] is [tex]10\:\rm{m/s^{2}}[/tex](approximately) and when it is converted in [tex]\:\rm{ft/s^{2}}[/tex], it is [tex]32\:\rm{ft/s^{2}}[/tex].
Substituting the values, the distance that Marica travels under influence of gravity for [tex]t[/tex] seconds is,
[tex]\begin{aglined}s&=ut+\dfrac{1}{2}at^{2}\\s&=(0)t+\dfrac{1}{2}gt^{2}\\s&=0+\dfrac{1}{2}(32)t^{2}\\s&=16t^{2}\end{aligned}[/tex]
The bungee cord begins to stretch after Marcia has fallen [tex]80\:\rm{ft}[/tex], so
[tex]\begin{aligned}s&=16t^{2} \\80&=16t^{2} \\t^{2} &=5\\t&=2.24\:\rm{s}\end{aligned}[/tex]
Digits for 229,909 227,011
Step-by-step explanation:
in addition to a label what other piece of information must the axis on a graph include
[tex]\sqrt{7x+2}[/tex]
Answer:
[tex] \sqrt{7x + 2} \\ [/tex]
for answer please see
please mark me brainliest pleasewrite the slope-intercept form of the equation of the line
through the given points .
Through:
(-3,-2) and (-4,3)
Answer:
y =-5x-17
Step-by-step explanation:
Slode-intercept is
y = mx + c
The first step is to find the slope, that is the m
To do that, use this formula
Y2 - y1
------------
X2- x1
And u will get - 5
Now since u got m, u also actually have y and x, those are the coordinates they gave u. U can choose either one,(-3, - 2) or (-4, 3), cuz they would give u the same answrs
So let's say I chose (-4, 3)
So x = - 4, y = 3
y=mx +c
3= - 5(-4) +c
C = - 17
Therefore your end product will be
y = - 5x - 17
Need help I don’t get it
Step-by-step explanation:
8.D
9.D
10.B
11. 120
12.C
13.D
14a.95
14b.180
15.5
q= 4n+4w solve for n
Answer:
Step-by-step explanation:
Subtract both sides by 4w
q - 4w = 4n
Divide both sides by 4
n = q - w
the distance between two place is 800 M find the distance measured in a map which is at the scale of 1 is to 25,000.(Answer in cm)
Answer:
3.2 cm
Step-by-step explanation:
800 m = 80000 cm (as every meter has 100 cm).
now, on the map that distance goes down 1/25000th of the original distance.
so,
80000 / 25000 = 80/25 = 16/5 = 3 1/5 = 3.2 cm
Use the distributive property to expand the following expressions.
51) 4(x+y)
52) 8(a+3b)
53) 3(2x+11y)
Please help me I need this answer by today!!!
Find cos(x) if [tex]\frac{sin^2x-1}{cosx} =-1[/tex].
A -1
B 2
C 1
D 0
(sin²(x) - 1)/cos(x) = -1
-cos²(x)/cos(x) = -1
-cos²(x) = -cos(x)
cos²(x) - cos(x) = 0
cos(x) (cos(x) - 1) = 0
Then it follows that cos(x) = 0 or cos(x) = 1. But if cos(x) = 0, then the original expression on the left side of the equation would be undefined. Then C is the only valid solution.
Evaluate πr² when r = 4.5. Use 3.14 for π.
1) 63.585
2) 199.6569
3) 14.13
4) 28.26
Answer:
A
Step-by-step explanation:
if 325 cases of 24 cans of soup,227 cases of 48 cans of soup . Estimate first.then find how many 12 cans of soup can made a cases?
Answer:
1,558 cases of 12 cans of soup can be made
Step-by-step explanation:
Here, we want to calculate how many cases of cans of soup can be made;
In the first part, we had 325 cases of 24 cans Now, if we split the 24 cans into 2 , we have 12 cans ;
So the number of cases is now 325 * 2 = 650 cases
In the second part, we had 227 cases of 48 cans.
If we split 48 cans into 4 , we can have 12 cans.
So the new number of cases here become 227 * 4 = 908 cases.
So the total number of cases we have will be; 908 + 650 = 1,558 cases
Hope it helps :)
What is the fraction of this question plz help me
There is probability of 7/8 of not getting yellow.
Brenda wants to make 160 photocopies that each cost $0.045. What is her total before tax?
Multiply (-14/21) x5/9 Enter your fraction as a fraction, in simplest form.
Please help
Answer:
simplifed -10/27
Step-by-step explanation:
Between what two consecutive integers does the square root of 19
lie
I need the answerrrrrrrrrrrrrrrrrrrrrrrr I HATE GEOMETRY AND I NEED TO GET MY GRADES UP CAUSE I NEED MY PHONE BACK.
Answer:
The bisector is line l
mq = 7
Step-by-step explanation:
To find x:
[tex]5x-3=11-2x\\\\+2x+3 +3 +2x\\\\\\7x=14\\x=2[/tex]
To find the value of mq
plug in the value of x into the equation.
[tex]11-2x\\11-2(2)\\11-4\\=7[/tex]
MQ = 7
Hope this is helpful! Please leave a review and comment below! Thanks for all your support!
b. B
Step-by-step explanation:PM = RM
[tex]5x - 3 = 11 - 2x[/tex]
[tex]5x + 2x = 11 + 3[/tex]
[tex]7x = 14[/tex]
[tex]x \times 2[/tex]
MQ = [tex]11 - 2x[/tex]
[tex]11 - 2 \times 2[/tex]
[tex]11 - 4[/tex]
[tex] = 7[/tex]
The sum of three consecutive integers is 264. What are the three integers?
Answer:
87, 88, 89
Step-by-step explanation:
x + x+1 + x+2 = 264
3x + 3 = 264
3x = 264 - 3
x = 261/3
x = 87
How could you add -13 + 10? A Add 13 + 10, and keep the negative sign from the -13. B Add 13 + 10, and keep the positive sign from the 10. C Subtract 13 - 10, and keep the negative sign from the -13. D Subtract 13 - 10, and keep the positive sign from the 10.
Please help… sorry for asking a lot of questions
Answer:
Answer: KL is 10
Step-by-step explanation:
JL = JK + KL
first get value of x:
[tex]26 = (8x + 8) + (3x + 7) \\ 26 = (8x + 3x) + (8 + 7) \\ 26 = 11x + 15 \\ 11x = 26 - 15 \\ 11x = 11 \\ x = 1[/tex]
therefore,
[tex]KL = 3x + 7 \\ = (3 \times 1) + 7 \\ = 3 + 7 \\ = 10[/tex]
Use the Table to evaluate each expression.
x | 1 2 3 4 5 6
f | 6 4 4 1 6 4
g | 5 5 2 1 4 3
a). f(g(1))
b). g(f(1))
c). f(f(1))
d). g(g(1))
e). (gof)(3)
f). (fog)(6)
Explain the concept and show step-by-step solution.
Here we have a problem of composition of functions.
Remember that:
(f ° g)(x) = f( g(x) )
Now we have the table:
x | 1 2 3 4 5 6
f(x) | 6 4 4 1 6 4
g(x) | 5 5 2 1 4 3
Using the table, we want to find:
To read the table, for example for f(5) first you go to the "x" part of the table and find the 5.
Now you go to the f(x) table and see which is the value of f(5), in this case, we can see that f(5) = 6.
a) f(g(1))
First, looking at the table, we can see that:
g(1) = 5
Then:
f(g(1)) = f(5)
Again, looking at the table we can see that f(5) = 6
Then we have:
f(g(1)) = 6
b) g(f(1))
Same approach as before:
f(1) = 6
then g(f(1)) = g(6)
And looking at the table, g(6) = 3
Then: g(f(1)) = 3
c) f(f(1))
f(1) = 6
f(f(1)) = f(6) = 4
f(f(1)) = 4
d) g(g(1))
g(1) = 5
then:
g(g(1)) = g(5) = 4
g(g(1)) = 4
e) (gof)(3)
This is equal to:
(gof)(3) = g(f(3))
we know that f(3) = 4
then:
g(f(3)) = g(4) = 1
(gof)(3) = 1
f) (fog)(6) = f(g(6))
We can see that:
g(6) = 3
then:
f(g(6)) = f(3) = 4
Concluding:
(fog)(6) = 4
If you want to learn more, you can read:
https://brainly.com/question/8308119
500.000.000 written in scientific notation?
[tex] \large \mathfrak{Answer : }[/tex]
Scientific notation for above vLue is :
[tex]5 \times 10 {}^{8} [/tex]The line y=px+2 is parallel to the line 2x+y=5. Determine the value of p
Answer:
-2
Step-by-step explanation:
The line y=px+2 has slope p
The line 2x+y=5 can be rewritten as y =-2x+5 so it has slope -2.
Since the two are parallel then they must have the same slope. Hence p=-2.
Answer:
p = - 2
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
2x + y = 5 ( subtract 2x from both sides )
y = - 2x + 5 ← in slope- intercept form
with slope m = - 2
Parallel lines have equal slopes
Thus for y = px + 2 to be parallel to y = - 2x + 5
Then p = - 2
