Step-by-step explanation:
7 (-12) = -84
it's literally -84
Someone please help me, use a variable to represent the situation, and solve the equation using inverse operations.
The length of an average toucan is about two thirds the length of an average macaw. Toucans are
about 24 in. long.
Answer:
36 in
Step-by-step explanation:
T= toucan
M= macaw
T= 2/3M
T= 24
24= 2/3M
72=2M
36= M
Length of macaw be x
24=2/3(x)2x=72x=72/2x=36inKay’s survey method produced results that are / are not representative of all people in her area because it is a random / biased sample. What can Kay do to improve the quality of her data?
Answer:
she proved that it wasn't representative
Step-by-step explanation:
The initial number of views for a blog was 10. The number of views is expected to grow at a rate of 15% per week. How many views are expected in 5 weeks?
Answer:
20 viewsStep-by-step explanation:
Initial number = 10Weekly growth rate = 15% or 1.15 timesEquation for this relationship:
V(t) = 10*1.15^t, where t - number of weeksNumber of views in 5 weeks:
V(5) = 10*1.15^5 = 20 views (rounded)PLEASE ANSWER THESE! I WILL GIVE BRAINLIEST!! YOU NEED TO Solve each equation. Find the missing number by step by step!
Step-by-step explanation:
4. E=-6
-9
multiply both sides by the LCM=-9
-9 × (e) = -6×-9
-9
therefore the LCM will cancel I out the denominator
e = -6×-9
e= -54
5. K =2
12
multiply through by the LCM=12
12×(k)=2×12
12
cross out
k=24
6. m=-10
6
multiply through by the LCM=6
6×m=-10×60
6
cross out
m=-60
So follow suit
Find the value of x to the nearest tenth. In a triangle, one angle is 46 degree and second angle is 20 degree. The adjacent side of 46 degree angel is 7 and opposite side is x.
The value of x in the triangle is approximately 7.2 to the nearest tenth.
To determine the value of x in the triangle, we can use the trigonometric ratio of tangent (tan).
We are Given that one angle of the triangle is 46 degrees and the adjacent side to this angle is 7, we need to find the length of the opposite side (x).
The tangent of an angle is defined as the ratio of the length of the opposite side to the length of the adjacent side.
tan(46°) = x/7
Take the tangent of both sides of the equation:
tan(46°) = x/7
Multiply both sides by 7 to isolate x:
7 x tan(46°) = x
Use a calculator to find the tangent of 46 degrees:
tan(46°) ≈ 1.0355
Multiply 7 by the approximate value of the tangent:
7 x 1.0355 ≈ 7.249
Rounding the value of x to the nearest tenth, we find that x ≈ 7.2.
Therefore, to the nearest tenth, the value of x in the triangle is approximately 7.2.
Learn more about trigonometric;
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The value of x to the nearest tenth is approximately 5.0.
To find the value of x, we can use the trigonometric relationship of the sine function in a right triangle. In this case, we have an angle of 46 degrees and the opposite side x.
The sine function is defined as the ratio of the length of the opposite side to the length of the hypotenuse. However, in this case, we don't know the length of the hypotenuse, but we can still find the value of x using the adjacent side.
Let's label the angle of 46 degrees as A, the adjacent side as B, and the opposite side as C.
sin(A) = C / B
sin(46°) = x / 7
To find the value of x, we can rearrange the equation:
x = 7 * sin(46°)
Using a calculator, we can evaluate sin(46°) and calculate the value of x:
x ≈ 7 * 0.7193
x ≈ 5.0351
for such more question on right triangle
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Which part of this graph shows a linear relationship?
Answer:
It would be D
Step-by-step explanation:
PLEASE HELP ME
GIVING BRAINLIEST
Answer:24
Step-by-step explanation:
pls help! i will make brainliest .. i need help with number 4 .
Answer:
10.0 centimeters
Step-by-step explanation:
I took the test
Please help
Which one is correct?
Answer:
The first one
Step-by-step explanation:
3/5 and 9/25
Find the area and circumference of a circle with the
radius of 8.5 cm.
Answer:
Area: 226.98
Circumference: 53.41
Step-by-step explanation:
Answer:
Area = 72.25π ≈226.98 cm
Circumference = 17π ≈ 53.41 cm
Step-by-step explanation:
Area formula for a circle = πr²
Circumference formula = 2πr
r = 8.5cm
help please this is hard
Answer:
m∠A = 120°
m∠C = 45°
Step-by-step explanation:
all triangle angles add up to 180
(12x + 12) + 15 + (3x +18) = 180
15x + 45 = 180
15x = 135
x = 9
m∠A = (12x + 12) = 12(9) + 12 = 120
m∠C = (3x +18) = 3(9) + 18 = 45
What two number does the cube root of 11 lie between?
if u know what the sqare root which is 3.32 than it will lie between 2 and 4
what is the slope of the line?
Answer:
y = 2x - 3
Step-by-step explanation:
Since the line is going 2 down and 1 left. The slope is 2.
The line crosses the y-intercept at -3.
y = 2x - 3
Answer:
m = 2
Step-by-step explanation:
You have to use the slope formula and insert your points into the formula. Your formula should have turned into 0 - (-3)/1.5 - 0. If you simplfy your equation your get m(slope)=2.
Hope this helps! :D
-Luna
What’s the scale factor?
20:4
4:1
16:1
64:1
Answer:
B
Step-by-step explanation:
A party hat has a diameter of 18 centimeter and height of 25 centimeter find the volume of the air it can occupy
What is the area of sector GPH?
The area of sector GPH is
=____square yards.
Answer:
sector GPH = 16π yd²
Step-by-step explanation:
area of full circle = πr² = (π)(12²) = 144π yd²
area of 40° segment = (40/360)(144π) = 16π yd²
hey could someone pls help me with this question? i really need to get this done. i’ll mark u brainiest if it’s correct!
4x – 4 = – 12
X = ?
What is X ?
Answer:
X=-2
Step-by-step explanation:
4x-4=-12
Add 4 on both sides
+4 +4
4x=-8
Divide by 4 on both sides
÷4 ÷4
X=-2
Answer:
-2
Step-by-step explanation:
4x-4=-12
4x=-12+4
4x=-8
x=-8/4
x=-2
What are the resulting coordinates of triangle J′K′L after reflecting triangle JKL across the x-axis?
Answer:
J: (-3,1) K: (4,2) L: (3,-4)
Step-by-step explanation:
A cylindrical metal pipe has a diameter of 8.4 millimeters and a height of 10 millimeters. A hole cut out of the center has a diameter of 6 millimeters. A smaller cylinder is cut out of a larger cylinder. The smaller cylinder has a diameter of 6 millimeters. The larger cylinder has a diameter of 8.4 millimeters. Both cylinders have a height of 10 millimeters. What is the volume of metal in the pipe? Use 3.14 for and round the answer to the nearest tenth of a cubic millimeter. 282.6 mm3 271.3 mm3 553.9 mm3 836.5 mm3
Answer:
its b
Step-by-step explanation:
got it right on edge
The volume of the metal in the cylinderical pipe given the dimensions of the larger and smaller cylinders is 271.30 mm³.
What is the volume of the cylinder?A cylinder is a three-dimensional object. It is a prism with a circular base.
Volume of a cylinder = nr^2h
Where:
n = 22/7 r = radius = diameter / 2The volume of the metal in the cylinderical pipe = 3.14 x 10 x [(8.4/2)² - 6/2)²] = 271.30 mm³
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The ages in years of eight boys are 14,
14.5, 12, 11.5, 15, 13, 10.5, 13.5. What is
their average age?
A. 14 B. 13
C. 12 D. 11
Answer:
B) 13
Step-by-step explanation:
Average age means to calculate mean:
Mean = (Sum of all numbers)/(Number of numbers)
Mean = (14 + 14.5 + 12 + 11.5 + 15 + 13 + 10.5 + 13.5)/8
Mean = (104)/8
Mean = 13
write an equation that is parallel to y=8/3x-5 and passes through (-3, -5)
if x=4 what is the value of 3x-2
Answer:
10
Step-by-step explanation:
Because x=4 you have to plug it into the equation
3(4)-2=
12-2=
=10
Do not give me any types of links.
Find the surface area of a sphere with radius 5 using the formula SA=4pir2
Leave answer in terms of n
A. 75 pi units squared
B. 100 pi units squared
Answer:
B. 100 pi units squared
Step-by-step explanation:
Find the surface area of a sphere with radius 5 using the formula SA=4pir²
Leave answer in terms of π = pi
From the question
The formula for the Surface Area if a square = 4 × pi × r²
r = 5
Hence,
Surface Area of a Sphere = 4 × pi × 5²
= 100 pi units squared
Option B is the correct option
A triangle has sides with lengths of 10 millimeters, 17 millimeters, and 18 millimeters. Is it a right triangle?
Answer:
no, it is not
if it were a right triangle, 10² + 17² = 18²
but this is not the case
Step-by-step explanation:
we would use Pythagoras theorem to determine if it is a right angle
The Pythagoras theorem : a² + b² = c²
where a = length
b = base
c = hypotenuse
10² + 17² =
100 + 289 = 389
square root of 389 is 19.72 and not 18. thus, it is not a right triangle
I need help with this problem please!!!
Answer:
the answer is 1188
Step-by-step explanation:
PLEASE MARK AS BRAINLIEST
you have a photo of a tool shed. in the picture the shed measures 2 inches wide and 1.3 inches tall. if the shed is actually 9 feet tall, how wide is the shed?
Answer:
70 1/5 inches or 70.2
Step-by-step explanation:
9x12 is 108 inches
108 divided by 2 is 54 inches
1 inch for every 54 inches
1.3x 54 is 70.2
WHAT IS THE PERIMETER OF THE TRIANGLE
GET THIS RIGHT AND YOU GET 100 POINTS
Answer:
40
Step-by-step explanation:
SO im guessing if its the full graph one box counts 1.
So the top side counts 8
The left one is 15
The perimeter means adding all the sides together.
We already have 2. But finding the hypotenuse would not be easy from graph so we will use Pythagorean theorem.
a^2+b^2=c^2
8^2+15^2 = c^2
64+225 = c^2
289 = c^2
c = 17
so the perimeter is 8+15+17 = 40
The stem-and-leaf plot shows the numbers of hours 10 students studied for their math exam. Find the mean, median, mode, range, and interquartile range of the data
The question is incomplete as the stem and leaf plot required to to provide data for y question isn't given.
In other to help with this question, I have attached a stem and leaf plot with 10 data values and I will be calculating the required statistical measures for the dataset. The knowledge can thus be applied to solve similar questions on your exact data set.
Answer:
Kindly check explanation
Step-by-step explanation:
Firstly, we need to write out values if the dataset :
Each value in the dataset is a combination of the stem and the corresponding leaf or leaves.
For the stem plot attached :
Dataset , X : 08, 12, 17, 18, 19, 22, 23, 31, 35, 40
The mean :
Σx / n
n = sample size = 10
= 225 / 10
= 22.5
Arranging data on ascending order :
08, 12, 17, 18, 19, 22, 23, 31, 35, 40
The median :
1/2(n+1)th term
1/2(11)th term = 5.5 th term = (5+6)th term / 2
Median = (19+22)/2 = 20.5
Mode = all dataset (since they all occur once).
Range = (maximum - minimum) = 40 - 8 = 32
Interquartile range : (Q3 - Q1)
Q3 = 3/4(n+1)th term ; 3/4(11) = 8.25th term
Q3 = (8th + 9th) term / 2 = (31+35)/2 = 33
Q1 = 1/4(n+1)th term ; 1/4(11)th term = 2.75 th term
Q1 = (12+17)/2 = 14.5
Interquartile range : (Q3 - Q1) = 33 - 14.5 = 18.5
Answer:
Median: 11
Mode: 3
Range: 30
Step-by-step explanation:
Just took the test :D
The temperature in an oven changes from 350 degrees to 362 degree. What is the percent increase in temperature, to the nearest tenth of a percent?
Answer:
3.4%
Step-by-step explanation:
Find the percent increase by dividing the difference in the temperatures by the original temperature, then multiplying it by 100:
((362 - 350) / 350) x 100
(12 / 350) x 100
= approximately 3.4
So, the percent increase in temperature was approximately 3.4%
