Answer:1/2
Step-by-step explanation:
Citcotel charges $1.94 per gallon of gas. Chevlon gas prices are displayed in the graph below.
Answer:
i cant see the graph
Step-by-step explanation:
helppppppppppppppppppp
What does the third equation become?
Answer:
8x-34=74
Explanation-
Factor:
x^2 + 9x = -20
Answer:
(x+4)(x+5)=0
Step-by-step explanation:
Hope this helped!!!
What is the next number in the arithmetic sequence below?
-32, -20, -8,4, _, ...
O A. 15
B. 18
O C. 12
D. 16
Answer:
D) 16
Step-by-step explanation:
it is going up by twelve each time.
so add twelve to 4 to get the answer.
John has a gift card with a $26.61 balance. He wants to purchase songs on Itunes each song cost $1.29. He wants to keep $10 on the card for future use. How many songs can he buy
Answer:
12
Step-by-step explanation:
Answer:
11 songs
Step-by-step explanation:
11 songs would leave him with $10.30 left
Evan and Dorinda make bracelets for a craft fair.
Evan makes 10 bracelets the first day and 8 bracelets each day after that.
Dorinda makes 8 bracelets the first day and 8 bracelets each day after that.
If they make bracelets for 6 days, how many bracelets will they make in all?
Enter your answer in the box.
Answer:
98 bracelets are in the box
Answer:
112
Step-by-step explanation:
please help.... 50% of my grade
Answer:
Ernesto's construction is wrong.
Step-by-step explanation:
Ernesto's construction is wrong.
This is because when bisecting an angle, the first thing we do is to place the compass at the vertex of the angle we want to bisect and draw an arc that will cross both lines that form the angle.
In Ernesto's case the arc drawn was not a single one but drawn separately as is seen in the image.
The arc on line AV does not continue to line VI but instead he drew another arc with different compass width on line VI before bisecting the angle.
An initial investment of $3,000 earns 7% interest compounded continuously. What will the investment be worth in 19 years? (Round your answer to the nearest cent.)
Answer:
$11343.13
Step-by-step explanation:
From the given information:
Principal = 3000
rate = 7% = 0.07
time = 19 years.
The amount of investment after 19 years for a continuous compounded interest can be estimated by using the formula:
[tex]A = Pe^{rt} \\ \\ A = 3000 \times e^{0.07 \times 19} \\ \\ \mathbf{A = \$11343.13}[/tex]
What is the approximate length?
9514 1404 393
Answer:
(b) 82
Step-by-step explanation:
The Pythagorean theorem tells you the length of MP is ...
MP = √(CM² -CP²)
MP = √(67² -53²) = √1680 ≈ 40.988
The length of MN is twice this, so is ...
MN = 2×MP = 2×40.988 = 81.976
Rounded to the nearest tenth, ...
MN ≈ 82.0
A baseball is hit and its height is given by h = 29.4t – 4. 9t^2, where h is the
height of the ball in metres and t is time in seconds. Determine the maximum height
of the baseball.
Answer:
44.1m
Step-by-step explanation:
we are given a quadratic function which represents the height and time of a baseball
[tex] \displaystyle h = 29.4t - 4.9 {t}^{2} [/tex]
we want to figure out maximum height of
the baseball
since the given function is a quadratic function so we have a parabola
which means figuring out the maximum height is the same thing as figuring out the maximum y coordinate (vertex)
to do so we can use some special formulas
recall that,
[tex] \displaystyle \rm t= \frac{ - b}{ 2a} [/tex]
[tex]\displaystyle H_{\text{max}}=f(t)[/tex]
notice that, our given function is not in standard form i.e
[tex] \displaystyle f(x) = a {x}^{2} + bx + c[/tex]
let's make it so
[tex] \displaystyle h = - 4.9 {t}^{2} + 29.4t[/tex]
therefore we got
our a is -4.9 and b is 29.4
so substitute:
[tex] \displaystyle\rm t= \frac{ -( 29.4)}{ 2 \cdot - 4.9} [/tex]
remove parentheses and change its sign:
[tex] \displaystyle\rm t= \frac{ -29.4}{ 2 \cdot - 4.9} [/tex]
simplify multiplication:
[tex] \displaystyle\rm t= \frac{ -29.4}{ - 9.8} [/tex]
simplify division:
[tex] \displaystyle \: t = 3[/tex]
so we have figured out the time when the baseball will reach the maximum height
now we have to figure out the height
to do so
substitute the got value of time to our given function
[tex]\displaystyle H_{\text{max}}=29.4\cdot 3-4.9\cdot {3}^2[/tex]
simplify square:
[tex]\displaystyle H_{\text{max}}=29.4\cdot 3-4.9\cdot 9[/tex]
simplify mutilation:
[tex]\displaystyle H_{\text{max}}=88.2-44.1[/tex]
simplify substraction:
[tex]\displaystyle H_{\text{max}}=44.1[/tex]
hence,
the maximum height of the baseball is 44.1 metres
Answer:
Solution given:
height
h=29.4t – 4.9t²
differentiating each term with respect to time (t)
[tex] \frac{d'(h)}{d(t)} [/tex]=[tex] \frac{d(29.4t – 4.9t²)}{d(t)} [/tex]
[tex] \frac{d'(h)}{d'(t)} [/tex]=29.4-9.8t
again second derivative
[tex] \frac{d''(h)}{d"(t)} [/tex]=-9.8
for maximum, minimum
first derivative =0
29.4-9.8t=0
t=[tex] \frac{29.4}{9.8} [/tex]=3
So it attains maximum height at t=3
so
maximum height=29.4×3-4.9×3² =44.1meters
So.
maximum height of the basketball is 44.1meters
Help please my assignment is due at 7❗️You get brainleist and points if u help just the numbers 10 11 and 12
Answer:
the answer for 12 would be 63
Step-by-step explanation:
7 x 9 x 1
a line parallel to a line that has a slope of 0 would have the slope of? geometry/algebra
Answer:
0
Step-by-step explanation:
Because
If f(x) = 2x2 – 8x + 9, which statement regarding the vertex form of f(x) is true?
A. In vertex form, f(x) = 2(x - 2)2 +1 and therefore has a minimum value of 1.
B. In vertex form, f(x) = 2(x - 2)2 + 1 and therefore has a minimum value of 2.
C. In vertex form, f(x) = 2(x - 2)2 + 4.5 and therefore has a minimum value of 4.5.
D. In vertex form, f(x) = 2(x - 2)2 + 4.5 and therefore has a minimum value of 2.
А
b
B
С
D
Answer:
A. In vertex form, f(x) = 2(x - 2)² +1 and therefore has a minimum value of 1.
Step-by-step explanation:
Function is given as;
f(x) = 2x² - 8x + 9
From quadratic formula, we know that;
a = 2
b = -8
c = 9
Now, x-coordinate of the vertex is;
x = -b/2a
x = -(-8)/2(2)
x = 2
Let's find the y-coordinate;
f(2) = 2(2)² - 8(2) + 9
f(2) = 8 - 16 + 9
f(2) = 1
Thus, y-coordinate = 1
This means the vertex coordinate is (2, 1)
Now, vertex form of a quadratic equation is;
f(x) = a(x - h)² + k
Where, (h, k) is the coordinate of the vertex and a is the first term as earlier seen.
Thus;
f(x) = 2(x - 2)² + 1
Now, the leading coefficient is positive and so it means that the parabola will open upwards and thus, will have a minimum value of 1.
In AHIJ, the measure of ZJ=90°, the measure of ZH=15°, and JH = 54 feet. Find the
length of HI to the nearest tenth of a foot.
Answer:
Step-by-step explanation:
What is the area of the triangle?
A triangle with a base of 45 inches, height of 33 inches, and side length of 45 inches.
123 inches squared
742.5 inches squared
1,012.5 inches squared
1,485 inches squared
Answer:
1,485
Step-by-step explanation:
The formula for area is A=bH (base x height) so you multiply 45 x 33
Answer:
D, I think
Step-by-step explanation:
an someone help please and thx:) !
Answer:
x = 29
Step-by-step explanation:
All triangle angles add up to 180 so:
x + 17 + 2x + 5 + 3x - 16 = 180
6x + 6 = 180
6x = 180 - 6
6x = 174
x = 29
Can somebody help me?
Answer:
A because if you times 14 by three it would become 42 and always inequalities have to multiply.
Hope I helped :)
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
v/3 ≤ - 14
x 3 x 3
v ≤ -42
Rose has two baskets; one contains apples and the other contains bananas. Together, the baskets weigh 5.45 pounds. Find the weight of the basket of bananas, if the apple basket weighs 2.16 pounds. What would the variable x represent in this equation? *
Answer:
hi!!! the answer is x = weight in pounds of bananas in the basket!
hope that helped
Step-by-step explanation:
so we have the total of the apple in the basket so we already know the apple but we need to know the bananas weight in the basket!
qual o numero de habitantes em Ubaitaba
Step-by-step explanation:
Números de personas: 18,847 in 2020
True or False?
The domain and range of a cube root function are always all real numbers.
Answer:
True
For the cube root function f(x)=3√x f ( x ) = x 3 , the domain and range include all real numbers. Note that there is no problem taking a cube root, or any odd-integer root, of a negative number, and the resulting output is negative (it is an odd function).
Hope that helps!
Step-by-step explanation:
A company says its premium mixture of nuts contains % Brazil nuts, % cashews, % almonds, and % hazelnuts, and the rest are peanuts. You buy a large can and separate the various kinds of nuts. Upon weighing them, you find there are grams of Brazil nuts, grams of cashews, grams of almonds, grams of hazelnuts, and grams of peanuts. You wonder whether your mix is significantly different from what the company advertises.
1) Explain why the chi-square goodness-of-fit test is not an appropriate way to find out.
A) The chi-square goodness-of-fit test can only be used on counts, weights are quantitative, not counts.
B) The chi-square goodness-of-fit test can only be used on quantitative variable, weights are counts, not quantitative variables.
C) The expected values are percentages, and the actual values are not. Therefore the ch-square goodness-of-fit test cannot be used.
D) The chi-square goodness-of-fit test cannot be use to test this kind of claim
2) What might you do instead of weighing the nuts in order to use a X2 test?
A) There is no way of performing a test without using weight.
B) Count the number of each kind of nut, assuming the company's percentages are based on counts rather than weights.
C) Find the volume of each kind of nut, assuming the company's percentages are based on volume.
Answer:
A) The chi-square goodness-of-fit test can only be used on counts, weights are quantitative, not counts.
B) Count the number of each kind of nut, assuming the company's percentages are based on counts rather than weights.
Step-by-step explanation:
The Test of Goodnes for fit is based on the property that the χ² test is applicable when the cell probabilities depend on unknown parameters, provided that the unknown parameters are replaced with their estimates and provided that the one degree of freedom is deducted from each parameter estimated.
1) So if the estimates ( counts) are missing the test is not applicable.
2) Percentages if treated as counts can be used for the χ² test.
Please help I’ll mark you as brainliest if correct
Ben has a collection of baseball cards. He has a total of 1,600 cards. Of the baseball cards, 35% are dated before 1980, 25% are dated from 1980 to 2000, and the rest are dated after 2000.
How many baseball cards in Ben’s collection are dated after 2000?
Answer:
640 i think
Step-by-step explanation:
Which inequality best represents the graph? O A. 2x + y = 6 O B. x + 2y 6 O c. 2r- y< 6 O D. 2x - y > -6 E. 2x + y26
Answer:
It would be A
Step-by-step explanation:
Kylie surveyed seven classmates about the number of pieces of fruit they eat each week.
9, 4, 6, 2, 11, 10,7
a. What is the mean absolute deviation of the data set?
b. What does this value mean in terms of the data set?
Answer:
2.57
The mean variation in the number of pieces of fruits eaten by the classmates is 2.57
Step-by-step explanation:
Given the data:
X = 9, 4, 6, 2, 11, 10,7
The mean absolute deviation = Σ|x - xbar| / n
Xbar = mean value = Σx / n
n = sample size
The mean, xbar = (2 + 4 + 6 + 7 + 9 + 10 + 11) / 7
Xbar = 49 / 7 = 7
Take the sum of the absolute value of the difference between the mean and x ;
Σ|x - xbar| / n =
= (5 + 3 + 1 + 0 + 2 + 3 + 4) / 7
= 2.57
Right the slope intercept form for the line that travels through (4,-1) and is parallel to y=1/4x
Answer:
Step-by-step explanation:
The slope is given to you by the line y = 1/4 x
The slope is just read as the number in front of x providing that the coefficient of y is 1. If that is not so, then you must divide by the coefficient in front of y. So far what you have is y = 1/4 x + b.
The second part of the question is to use the given point to find b.
x = 4
y = -1
b = ? substitute x and y to find b
y = 1/4 * 4 + b
- 1 = 1/4 * 4 + b
-1 = 1 + b
-2 = b
The equation of the line is y = 1/4 x - 2 Just to confirm this, I'm going to include the graph with the point 4,-1 on it.
Please help I’ll mark you as brainliest if correct!
Answer:
♥♥♥
I tried solving this answer and got 25.2. So, I think you're answer will be 25.
Step-by-step explanation:
I divided 63 by 2.5. Hope I helped.
A circle has a circumference of 52 inches. What is the circles radius using 3.14 for pi
Answer:
r = 8.28
Step-by-step explanation:
Circumference of a circle:
C = 2πr
52 = 2(3.14)r
52 = 6.28r
r = 52/6.28
r = 8.28
The ratio of boys to girls in the school
band is 4:3. If there are 16 boys, how
many boys and girls are in the band?
A. 12
B. 28
C. 7
D. 21
Answer:
B. 28
Step-by-step explanation:
Answer:
B. 28
Step-by-step explanation:
for every 4 boys there is 3 girls
so,
from 4 to 16 you multiply by 4,
4 x 4 = 16 (what you do to one you do to the other:
4 x 3 = 12
It's asking for the total amount
if there is 16 boys there is 12 girls with the ration of 16:12
add them up,
16 + 12 = 28 (That's your answer).