Answer:
[tex]tan70 = \frac{opp}{adj} \\ \: \: = \frac{15}{x } \\ \\ x = \frac{15 }{tan70 } \\ \\ = \frac{15}{2.747} \\ \\ = 5.46[/tex]
since 5.46 is equal to 5.5...
I think the answer is the first one
Which of the following equations represents a parabola that opens up and has a vertex with a negative x-value? A. y=-2x^2+8 B. y=-x^2-5x-4 C. x^2+10x+24 D. x^2-7x+12
Answer:
C
Step-by-step explanation:
Open up = positive number that multiplies x^2
x - value of the vertex = -b/2a
C -> -10/2 = -5
What is the equation for a line that has an x-intercept of 2 and a y-intercept of -6?
Answer:
An x-intercept of 2 implies
(
2
,
0
)
is a point on the line
A y-intercept of 4 implies
(
0
,
4
)
is a point on a line
The slope of the line joining
(
2
,
0
)
and
(
0
,
4
)
is
#(Delta y)/(Delta x) = (4-0)/(0-2) = -2
Using the slope-intercept form of the equation
y
=
m
x
+
b
where
m
is the slope and
b
is the y-intercept
we have
y
=
−
2
x
+
4
On a coordinate plane, 2 exponential functions are shown. f (x) approaches y = 0 in quadrant 2 and then increases into quadrant 1. It crosses the y-axis at (0, 0.5) and goes through (1, 1).
Which function represents g(x), a reflection of f(x) = On a coordinate plane, 2 exponential functions are shown. g (x) decreases in quadrant 2 and approaches y = 0 in quadrant 1. It goes through (negative 1, 1) and crosses the y - axis at (0, 0.5).(3)x across the y-axis?
g(x) = 2(3)x
g(x) = −One-half(3)x
g(x) = One-half(3)−x
g(x) = 2(3)−x
Step-by-step explanation:
Edge 2021
Answer: g(x) = Negative two-fifths(10)x
Step-by-step explanation:
In order to reflect a function over the x-axis, you have to multiply the function by minus one.
Given the function:
f(x) = 2/5(10)^x
Its reflection over the x-axis is:
-f(x) = -2/5(10)^x = g(x)
Evaluate the expression.
a - 7ab + b when a= 4 and b = -3
Answer:
85
Step-by-step explanation:
4 - (7 x 4 x -3) + -3
4 - (28 x -3) -3
4 - (-84) -3
88 - 3
85
Which statement must be true ?
Answer:
The correct answer is B.
Step-by-step explanation:
The opposite of Square root is squaring, which is ².
Answer:
[tex] \frac{ \sqrt{a} }{ \sqrt{b} } = x \\ [/tex]
squaring both the sides
[tex]{( \frac{ \sqrt{a} }{ \sqrt{b} }) }^{2} = x ^{2} \\ [/tex]
ANSWER :-B. [tex] \frac{ {a} }{ {b} } = x {}^{2} \\ [/tex]
Can anyone solve this?
If square C is 64 in^2, then its dimensions are 8 x 8.
If square D is 81 in^2, then its dimensions are 9 x 9.
Since D is bigger than C and I sits in that extra space, then the dimensions of I are 1 x 1.
Since H is smaller than C, specifically I smaller, than its dimensions are 7 x 7.
Then, H and C make up one side of B, so 7 + 8 = 15. The dimensions of B are 15 x 15.
Since E is bigger than D by I, then the dimensions of E are 10 x 10.
If we find the length of the right side (B + C + D), which is 15 + 8 + 9 = 32, then we know that F + E + D must also add up to 32. F + 10 + 9 = 32 || F = 13. The dimensions of F are 13 x 13.
Then, F is E + G, so 13 = 10 + G. G = 3. The dimensions of G are 3 x 3.
Lastly, since we know the side length of the whole square is 32, then A + F must equal 32. 32 = A + 13. A = 19. The dimensions of A are 19 x 19.
A = 19 x 19 = 361 in^2
B = 15 x 15 = 225 in^2
C = 8 x 8 = 64 in^2
D = 9 x 9 = 81 in^2
E = 10 x 10 = 100 in^2
F = 13 x 13 = 169 in^2
G = 3 x 3 = 9 in^2
H = 7 x 7 = 49 in^2
I = 1 x 1 = 1 in^2
Hope this helps!! :)
The graph shows the number of servings in different amounts of frozen yogurt listed on a carton. Enter an equation that gives the number of servings y in x pints.
Use only decimal form, if necessary. Frozen Yogurt 9 COR Servings 3 2 1 Pints 3 31 5 6 18 9 The equation is y =
Answer:
Please rephrase the question.
Step-by-step explanation:
Boxers in the nineteenth century used their bare fists. In modern boxing,
fighters wear padded gloves. How do gloves protect the brain of the boxer from
injury?
Answer:
boxers get injured but it is good to have some security on your fist and for those who do do boxing it's nice to have some security
Please show process I WILL GIVE BRAINLY
Answer:
your image has the answer
Step-by-step explanation:
you can go type triangle calculator and type in everything
In ΔPQR, q = 590 cm, r = 310 cm and ∠P=24°. Find the area of ΔPQR, to the nearest square centimeter.
Answer:
[tex]Area= 37193\ cm^2[/tex]
Step-by-step explanation:
Given
[tex]q = 590cm[/tex]
[tex]r = 310cm[/tex]
[tex]\angle P =24^o[/tex]
Required
The area of [tex]\triangle PQR[/tex]
This is calculated as:
[tex]Area= \frac{1}{2} * qr* \sin(P)[/tex]
So, we have:
[tex]Area= \frac{1}{2} * 590cm * 310cm* \sin(24^o)[/tex]
[tex]Area= \frac{1}{2} * 590cm * 310cm* 0.4067[/tex]
[tex]Area= 37192.715cm^2[/tex]
[tex]Area= 37193\ cm^2[/tex] ----- approximated
The gas tank in Feliz's car is 5/6 full. Each time he drives to or from work, he uses 1/12 of a full tank of gas. Which equation represents the number of times Feliz can drive to or from work with the gas in his tank?
Answer:
5/6 divided by 1/12 (the last box)
Well thats the only box with the right answer and the equation used is how you get the right answer
Solve this equation 3-2.7(8-x)=16.5
Answer:
=13 :D
Step-by-step explanation:
Im bIg BrAiN
Answer:
x=13
Step-by-step explanation:
See image below:)
Evaluate + for x = 6, y=-4, and z=-2.
09
0 27
0-9
0-27
Answer:
-27
Hope this helped in anyway
Answer:
the answer to this is -27.
HELP QUICK PLEASE 15 points!!!
Answer:
I think the ans is option 'a'
Final Answer:
Corresponding Angles Theorum; ∠AGF and ∠EHD are congruent
The length of a rectangle is 7.5 inches and the width is 2.75 inches. What is the ratio, using whole numbers, of the length to the width
30:11
30:22
11:15
15:11
Answer:
30 : 11
Step-by-step explanation:
Length : Width
7.50 : 2. 75
750 : 275
30 x 25 : 11 x 25
30 : 11
What is the area of the polygon given below?
6
14
13
A. 287 square units
B. 195 square units
c. 117 square units
D. 181 square units
PREVIO
The equation of the line that passes through the point (1, 2) and is parallel to the line 3x + 4y = 12.
Answer:
Step-by-step explanation:
We first turn 3x+4y=12 into standard form:
4y=-3x+12
y=-3/4x+3
By knowing the 2nd line is parallel to the first, the slopes are the same:
y=-3/4x+b
Plugging in (5,4) into the equation:
4=-15/4+b
b=1/4
Final equation=y=-3/4+1/4.
In the diagram below, JK is similar to MNO. If segment Mn is 8 cm, segment Bo is 18 cm, segment OM is 20 cm, and segment JK is 22 cm, how long is segment LJ?
Answer:
55 cm
Step-by-step explanation:
[tex]\frac{22}{8} =\frac{x}{20} \\8x=440\\x=55cm[/tex]
a city council consists of 7 democrats and 7 republicans. if a committee of 4 people is selected, find the probability of selecting 2 democrats and 2 republicans
Answer:
The probability of selecting 2 Democrats and 2 Republicans is 29.36%.
Step-by-step explanation:
Given that a city council consists of 7 democrats and 7 republicans, to determine, if a committee of 4 people is selected, the probability of selecting 2 Democrats and 2 Republicans must be performed the following calculation:
7/14 x 6/13 x 7/12 x 6/11 = X
0.5 x 0.46 x 0.58 x 0.54 = X
0.0734 = X
0.0734 x 100 = 7.34 x 4 = 29.36
Therefore, the probability of selecting 2 Democrats and 2 Republicans is 29.36%.
Use the variable x to write the phrase in symbols.
Answer:
155 + [tex]x^{3}[/tex] + 14
Step-by-step explanation:
The variable x would represent the number/value we don't know, and in this case, we don't know what number is raised to the third power. This being said, x would represent that number.
The question, although worded a bit confusingly, asks to add 155, the number (x) to the exponent of 3, and 14. Mathematically, this would be 155 + [tex]x^{3}[/tex] + 14.
18
What is the value of x?
3
10
2y + 4
4
6
10 + 2x
8
Answer:
its 4 or B for the value of X
To wash a window that is 8 meters off the ground, Stanley leans a latter against the side of the building The base of the latter is 6 meters from the building How long is the ladder that Stanley is using?
Answer:
the latter is ten meters long
Step-by-step explanation:
its just ten meters long
Solve the equation
|x-3| -10=-5
Answer:
x=8 x=-2
Step-by-step explanation:
|x-3| -10=-5
Add 10 to each side
|x-3| -10+10=-5+10
|x-3| =5
Now separate into two equations , one positive and one negative
x-3 = 5 x-3 = -5
Add 3 to each side
x-3+3 = 5+3 x-3+3 = -5 +3
x=8 x=-2
Answer:
x = ± 8
Step-by-step explanation:
|x - 3| - 10 = - 5
|x - 3| - 10 + 10 = - 5 + 10
|x - 3| = 5
x - 3 = 5
x - 3 + 3 = 5 + 3
x + 3 = - 5
x + 3 - 3 = - 5 - 3
x = - 8
which digit have the same place value and face value in 6782 1904
4 and 0 has the same place value and face value.
Hope this is helpful :)
Answer:
0 and 4 are the digit which have same place and face value.
A construction crew is using heavy equipment to dig a hole in which the foundation of a house will be built. The hole
will be in the shape of a right rectangular prism with dimensions of 4 feet in depth, 100 feet long, and 50 feet wide.
The soil will be removed using a truck that can hold a maximum of 40,000 pounds. The soil weighs 90 pounds per
cubic foot. What is the least number of truckloads needed to remove all of the soil?
1. Solve the following system of equations, using matrix inversion method.
2x -- 4y + 5z = 36
-3x + 5y + z = 7
5x + 3y - 8z = -31
Answer:
x = 142/83
y = 111/83
z = 452/83
Put the numbers in order from least to greatest.
.2, -.4, .8,-.9, 1
A. -.4,-.9, 1, 2,8
B. -.9,-4, 1, .2, .8
C. -.9,-.4, .2, .8, 1
D. 1, 2, -4,8, -9
Answer:
B. -.9,-4, 1, .2, .8
Hope this helps!:)
Answer:
B not sure cuz i lit bit cant recognize the question
Step-by-step explanation:
Drag the tiles to the correct boxes to complete the pairs.
Match the scale and the actual area to the area of the corresponding scale drawing.
scale: 1 inch to 5 feet
actual area: 225 square feet
scale: 1 inch to 7 feet
actual area: 147 square feet
scale: 1 inch to 8 feet
actual area: 256 square feet
scale: 1 inch to 4 feet
actual area: 128 square feet
area of scale drawing
scale and actual area
scale drawing area:
9 square inches
arrowRight
scale drawing area:
3 square inches
arrowRight
scale drawing area:
8 square inches
arrowRight
scale drawing area:
4 square inches
arrowRight
Answer:
OMGGG I NEED THIS QUESTIONNN TOOOOOOWANNA WORK ON IT
Answer:
225sqft with 1in -> 5ft = 9sqin
147sqft with 1in -> 7ft = 3sqin
256sqft with 1in ->8ft = 4sqin
128sqft with 1in -> 4ft = 8sqin
Step-by-step explanation:
To change from feet to inches, you just divide by the scaling factor (5, 7, 8, or 4) in this problem. But because it is square feet to square inches, you must divide by the square of the scaling factor:
5*5 = 25
7*7 = 49
8*8 = 64
4*4 = 16
So:
225/25=9
147/49 = 3
256/64 = 4
128/16 = 8
Brenda has collected data to find that the finishing times for cyclists in a race has a normal distribution. What is the probability that a randomly selected race participant had a finishing time of greater than 154 minutes if the mean is 143 minutes and the standard deviation is 11 minutes? Use empirical rule. Provide final answer as a percent.
Answer: 16%
Step-by-step explanation:
Notice that 154 minutes is one standard deviation greater than the mean. Based on the empirical rule 68% of the finishing times are within one standard deviation of the mean, so 100%-68%=32% of the finishing times are outside of one standard deviation from the mean one either direction. Since the normal distribution is symmetric , half of the 32% will be less than the mean and half will be greater, so 16% of the finishing times are greater than the one standard deviation more than the mean.
The probability that race participant had a finishing time of greater than 154 minutes is 16%
The empirical rule states that for a normal distribution, 68% are within one standard deviation from the mean, 95% are within two standard deviation from the mean and 99.7% are are within three standard deviation from the mean.
Given that mean (μ) = 143, standard deviation σ = 11
68% are within one standard deviation = μ ± σ = 143 ± 11 = (132, 154)The probability that race participant had a finishing time of greater than 154 minutes is 16% [(100% - 68%)/2]
Find out more at: brainly.com/question/12660012
Select the correct answer. The square of z varies inversely as the square root of e. If z=36 when w=16, what is the value of z when w=81?
a. 54
b. 24
c. 182 1/4
d. 7 1/9
The square of z varies inversely as the square root of e. If z=36 when w=16, then value of z is 24 when w=81.
What is Ratio?A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.
The square of z varies inversely as the square root of e.
If z=36 when w=16
The value of z when w is 81 we need to find
z²=k/√e
where k is a proportionality constant
36²=k/√16
36²=k/4
Apply cross multiplication
1296(4)=k
5184=k
Now let us find when k is 5184 and w is 81
z²=5184/9
z²=576
Take square root on both sides
z=24
Hence, the value of z is 24 when w is 81.
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