HELPP!!! I need help ASAP
Answer:
the right answer is C
Step-by-step explanation:
___________
At a concession stand, seven hot dog(s) and four hamburger(s) cost $15.00; four hot dog(s) and seven hamburger(s) cost $18.00. Find the cost of one hot dog and the cost of one hamburger.
Answer:
hotdog $1, and hamburger $2
Step-by-step explanation:
D-is hot dogs, H-hamburgers
7D +4H = 15
4D +7H = 18
we got 2 equations with 2 unknown so we can solve
7D +4H = 15 multiply by 7
4D +7H = 18 multiply by -4
49D +28H = 105
-16D -28H = -72 add the two equations
33D= 33 so D=$1
go back to the first equation:
7*1 +4H =15 gives us 4H = 15-7; 4H = 8 so H= $2
There are 6 red marbles, 4 blue marbles, and 15 green marbles in a jar. If you reach in and randomly draw one, what is the probability that you will choose a red marble?
Answer:
6+4+15 = 25 and since there are 6 red marbles the answer is 6/25
Answer:
6 out of 25 chance/ 24%
Step-by-step explanation:
15 + 4 = 19 + 6 = 25
6/25 = 0.24 = 24%
What is the quotient of Two-thirds and StartFraction 2 Over 9 EndFraction?
Answer:
3.
Step-by-step explanation:
2/3 / 2/9
= 2/3 * 9/2
= 18/6
= 3.
g(x) = 3x^2 + 10x-8
Use the drop-down menus to factor the expression and find the zeros of g(x).
Answer:
g(x) = (3x - 2)(x + 4)
x = {-4, 2/3}
Step-by-step explanation:
g(x) = 3x^2 + 10x - 8
Factor
g(x) = (3x - 2)(x + 4)
Zero I
3x - 2= 0
3x = 2
x = 2/3
Zero II
x + 4 = 0
x = -4
x = {-4, 2/3}
Answer:
The answer is, [tex]x = {-4, 2/3}[/tex]
Explanation:
Definition of factor:A factor is a number that divides another number by itself without leaving a residue. To put it another way, if multiplying two whole numbers produces a product, the numbers we're multiplying are factors of the product since they're divisible by it.
Factors can be found using two methods: multiplication and division. In addition, divisibility rules can be applied.
Step-by-step:
[tex]g(x) = 3x^2 + 10x - 8[/tex]
Factor:
[tex]g(x) = (3x - 2)(x + 4)[/tex]
Step 1:
Zero 1.
[tex]3x - 2= 03x = 2x = 2/3[/tex]
Step 2:
Zero 2.
[tex]x + 4 = 0x = -4[/tex]
[tex]x = {-4, 2/3}[/tex]
Hence, the g(x) zeros are [tex]x = {-4, 2/3}[/tex]
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Which pair of expressions below are equivalent (the same)?
a) 4(3b) and 7b
b) 4b + 5b and 20b
c)-5(2b + 2) and 20b
d) 3b + b + 2b and 6b
Please help it’s really important
lcm of 64 and 94
plz show photo of work and explan plz for 10
Answer:
10 and 64 and is a then not answer
Answer:
Step-by-step explanation:
2 64, 94
32, 47
LCM=2*32*47=3008
while doing LCM u should take all the numbers (common numbers and remaining numbers)
But in HCF only common numbers are take for eg .here,HCf is 2because 2 is the only number that divides both the number.
Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 6.8 parts/million (ppm). A researcher believes that the current ozone level is at an insufficient level. The mean of 10 samples is 6.4 ppm with a standard deviation of 1.1. Does the data support the claim at the 0.05 level
Answer:
The test statistics fall in the critical region and hence null hypothesis is to be rejected.
Step-by-step explanation:
The null hypothesis : H0 : Mean = 6.80
Alternative hypothesis: Ha: Mean is not equal to 6.80
As per the z statistics
z = (x’-mean)/(sigma/sqrt n)
Substituting the given values, we get –
z = 6.4-6.8/(1.1/sqrt 10)
z = -1.149
z test statistics is -1.149
Critical value for two tailed test at 98% confidence is .10749
The test statistics fall in the critical region and hence null hypothesis is to be rejected.
30p+2
can you please answer
Answer:
2(15p+1)
Step-by-step explanation:
hope this helps
What is the meaning of the abbreviation...
B.C.___________________.
A.D.____________________.
Answer:
Before Christ
Anno Domini (After death)
change 1/4 to percent.
a.20%
b.25%
c.75%
d.100%
what is the perimeter measured in centimeters of the rectangle pictured below do not include units in your answer
Answer:
183
Step-by-step explanation:
The perimeter of the rectangle measured in centimeters is 26 cm.
What is Perimeter?Perimeter of a straight sided figures or objects is the total length of it's boundary.
Given a rectangle in the figure.
The length of the rectangle = 7 cm
Width of the rectangle = 6 cm
We have to find the perimeter of the rectangle.
Perimeter of the rectangle = 2(l + w), where l is the length and w is the width.
Perimeter = 2(7 + 6)
= 2 × 13
= 26 cm
Hence the perimeter is 26 cm.
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1/3 x 1/2 x 1/4 = V.
Answer:
Step-by-step explanation:
1*1*1/3*2*4=V
1/24=V
multiply all numerator and all denominator.
which expression is equivalent to 6 (3x + 4)?
A) 9x + 4
B) 18x + 4
C) 18x + 24
D) 9x + 10
Answer:
c number is the ans
Step-by-step explanation:
multiply each term with 6
WILL GIVE BRAINLIST
MATH
CONVERT EACH MEASUREMENT
SHOW STEPS ALL
9 1/8 lbs to ounces
Answer:
146 Ounces.
Step-by-step explanation:
9.125 [tex](\frac{1}{8})[/tex] lbs to ounces.
Multiply the mass value by 16.
To Check Work:
Divide 146 by 16 which equals [tex]\frac{73}{8}[/tex]/ 9.125.
Divide 146 by 9.125 [tex](\frac{1}{8})[/tex] which equals 16.
A sample of 1,000 adults showed that 31% of them are
smokers. To estimate the proportion of people in the entire population who smoke, what additional information would you need?
Select one:
A. The size of the population
B. The length of time the people smoked
C. All the information you need is contained in the problem
D. The amount of confidence you desire in your estimate
Answer:
C. All the information you need is contained in the problem.
310 people of 1000 people smoke.
Step-by-step explanation:
[tex]\frac{y}{1000}: \frac{31}{100}[/tex]
y · 100 = 31 · 1000
100y = 31000
100y ÷ 100 = 31000 ÷ 100
y = 310
Can someone help me please
3x^2 = 48
Divide both sides by 3
3x^2 ÷ 3 = 48 ÷ 3
x^2 = 16
Take a square root from both sides
√x^2 = + √16 " OR " √x^2 = - √16
x = 4 " OR " x = - 4
Thus the correct answer is option 3 .
What is the approximate volume of the cone
below?
Answer:
183 cm³
Step-by-step explanation:
V(cone) = 1/3πr²h
= (π5²·7) ÷ 3
= 175π ÷ 3
≈ 58π or 183 cm³
Graph the solution to this system of inequalities in the coordinate plane. y > 1/4x + 6 y>2x - 4
Answer:
WVAD
Step-by-step explanation:
wdvvvvavdv
Answer
2. 3/4 of Alice's salary is the same as 1/2 of Betty's salary. If Alice
earns $200 less than Betty, how much does Betty earn?
Answer:
Betty = $600
Step-by-step explanation:
3/4 of Alice's salary is the same as 1/2 of Betty's salary
(3/4)a = (1/2)b
multiply both sides by 2
(3/2)a = b
Alice earns $200 less than Betty
b - a = 200
Substitute for b
(3/2)a - a = 200
(1/2)a = 200
multiply both sides by 2
a = 400
b = (3/2)400
b = 600
Which lists all of the y-intercepts of the continuous
function in the table?
O (0,0)
O (-1,0), (2, 0)
O (-1,0), (0, 0)
O (-1,0), (0, 0), (2, 0)
Answer: (0,0)
Step-by-step explanation:
got it correct
The value of y-intercept of the given function is (0,0).
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Since, We know that;
When a function intersects the y-axis then the point of intersection is called y-intercept of the function,
Also, for y-intercept x = 0.
That is, if f(x) is the function then its y-intercept is (0, f(0) )
By the given table for x = 0, f(x) = 0
Hence, tWhen a function intersects the y-axis then the point of intersection is called y-intercept of the function,
Also, for y-intercept x = 0.
That is, if f(x) is the function then its y-intercept is (0, f(0) )
By the given table for x = 0, f(x) = 0
Hence, the y-intercept of the given function is (0,0),
Thus, The value of y-intercept of the given function is (0,0).
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What is the range of the data set 1 2 3 4 5 6 7
Answer:
6
Step-by-step explanation:
Range = Highest number - Smallest number
From the data
Highest number = 7
Lowest number= 1
Range = 7 - 1
RAnge = 6
Hence the range of the dataset is 6
Given f(x) = 3x2 + x and g(x) = 2x. What is Limit of g (f (x)) as x approaches negative 4?
44
88
104
188
Answer: 88
Step-by-step explanation:
got it right 2022 edge
a. Find the probability of the normal curve between z = -2.50 and z = 1.50.
Answer:
[tex] = \phi( - 2.50) + \phi(1.50) \\ from \: calc : \\ = 0.4938 + 0.4332 \\ = 0.927[/tex]
lots of points for a easy question the unit of measure of the____ of the conversion factor should be the unit of measure____ which you want to convert
A numerator from
b denominator from
c denominator to
d none of the above
Answer:
the unit of measure of the conversion factor should be the unit of measure__
A numerator from __ which you want to convert
What is the product?
2 3 4
5 9 -1 -7
11 5 -3
Answer:
-1247400
Step-by-step explanation:
See the Image below:) I believe this is what you are looking for.
A parking lot charges $2 per hour for the first 4 hours, then $3 per hour after that. Which equation(s) describes the total cost as a function of the hours x?
A. Y=3x+8
B. Y=2x+12
C. Y=2x for x of 4 or less / y=2x+3x for x of 5 or more
D. Y=2x for x of 4 or less / y=8x+3(x-4) for x of 5 or more
Answer:
A.
Step-by-step explanation:
2/hour
2×4 hours =8 dollars ;
Then 3x(because we dk the time taken, so replaced by x and then times 3)
Equation =8+3x
Reba kicks a soccer ball off the ground and in the air, with an initial velocity of 25 feet per second. Using formula H(t) = - 1612 + vt + s, what is the maximum height the soccer ball reaches?. Using the formula HC -1662 + vt +s, what is the maximum height the soccer ball reaches?
Answer:
The maximum height the soccer ball reaches is 9.77 feet.
Step-by-step explanation:
Vertex of a quadratic function:
Suppose we have a quadratic function in the following format:
[tex]f(x) = ax^{2} + bx + c[/tex]
It's vertex is the point [tex](x_{v}, y_{v})[/tex]
In which
[tex]x_{v} = -\frac{b}{2a}[/tex]
[tex]y_{v} = -\frac{\Delta}{4a}[/tex]
Where
[tex]\Delta = b^2-4ac[/tex]
If a<0, the vertex is a maximum point, that is, the maximum value happens at [tex]x_{v}[/tex], and it's value is [tex]y_{v}[/tex].
Reba kicks a soccer ball off the ground and in the air, with an initial velocity of 25 feet per second.
The formula for the height is:
[tex]h(t) = -16t^2 + v(0)t + h(0)[/tex]
In which v(0) is the initial velocity and s(0) is the initial height.
Initial velocity of 25 feet per second means that [tex]v(0) = 25[/tex]
Kicked off the ground means that [tex]h(0) = 0[/tex]. So
[tex]h(t) = -16t^2 + 25t[/tex]
Which is a quadratic equation with [tex]a = -16, b = 25, c = 0[/tex].
The maximum value is:
[tex]y_{v} = -\frac{\Delta}{4a}[/tex]
In which
[tex]\Delta = b^2-4ac = 25^2 - 4(-16)(0) = 625[/tex]
[tex]y_{v} = -\frac{\Delta}{4a} = \frac{625}{4(16)} = 9.77[/tex]
The maximum height the soccer ball reaches is 9.77 feet.
I need help asap. Evaluate Expressions
Answer:
1:
p-r/6=-6-(-6)/6=-6+1=-5
2:
p-(m-n)= -1-(-4-4)=-1-(-8)=-1+8=7
3:
(z+y)/2)3=(-5-4)/3=-9/3=-3
4:
m/6-n=6/6-6=1-6=-5
5:
k³-h=3³-(-2)=27+2=29
6:
p-(p-(m-3))=5-(5-(4-3))=5-(5-1)=5-4=1
7:
(k)(k-j)+3=(5)(5-5)+3=5*0+3=3
8.
p²/6-q=6²/6-4=6-4=2
9;
zx+3³=6*4+3³=24+27=51.
10:
y+z-(y-x)=5+4-(5-2)=9-3=6
Some basic rules:
+. +. +=+
+. * +=+
+. ÷ +=+
+. - +=+
and
+. +. -=add and put sigh of greater one.
-. * +=-sigh
-÷-=+sigh
- - -=add and put - sigh
What is the additive inverse of 36?
Answer:
The additive inverse of 36 is −36.
Step-by-step explanation:
Answer:
-36.
Step-by-step explanation:
Additive inverses are basically the opposite of the number, for example, since 36 in this case was positive you need to make it negative.