help me out thankyou
Answer: A
Step-by-step explanation:
I took the test
I will mark you brainlist!
Answer:
1. 2 runners
2. 25 runners
3. 24%
4. 15 runners
5. 60%
6. uh I think it's asking the same thing as 3, so 24%?
Janine and Laura both took a standardized math test. The test scores were normally distributed with a mean of 75 and a standard deviation of 11. Janine earned a score of 76, whereas Laura earned a score of 89.
About what percentage of people had a score between Janine's and Laura's scores?
a) 30%
b) 43%
c) 80%
d) 36%
About what percentage of people had a score between Janine's and Laura's scores?
Answer:
Its D) 36%
a wire of radius 6mm and length 400 is melted to sphere.calculate the volume of an irregular solid
Answer:
it's 10 cemetery in a two way too far and far from a lot for
The volume of irregular solid is 45239 mm^3
Given
for cylinder,
radius = 6mm and length = 400 mm
Volume, is defined as the ratio of the mass of object to its density.
since if the cylinder is melted to sphere the volume remains the constant
so.
volume of an irregular solid = volume of cylinder
= πr^2l
= 3.14 x 6^2 x 400
= 45239 mm^3
Thus, the required volume of of irregular solid is 45239 mm^3
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Q2.In how many hours can they bake 250 bagels?
Answer:
2 hours!
Step-by-step explanation:
18 is 15% of what number
Answer:
120
Step-by-step explanation:
common multiples for 3,6 and 8
help last question A semicircular mat has a diameter of 18 m. What is the area of the mat?
Answer:
127.2
Step-by-step explanation:
The area of a semicircle is:
[tex]\frac{\pi r^{2} }{2}[/tex]
So to figure it out we first find the diameter:
18÷2=9
Then we plug it into the equation
[tex]\frac{9^{2}\pi }{2} = \frac{81\pi}{2}[/tex] Which we can put into a calculator to get 127.2345... so we round to 1 d.p to get our answer, 127.2 (the fifth digit, 3, rounds down)
which of these decimal numbers is equivalent to 87?
0.87
8.70
87.00
870.0
Answer: if its 87% then its 0.87, but if its 87 then its 87.00
Step-by-step explanation: I'm doing these questions for a challenge :D
I hate math. truly.
Question: Which is the solution to the inequality?
1/4 + x < 5/6
Answer Choices:
A: x < 7/12
B: x > 7/12
C: x < 1 1/12
D: x > 1 1/12
Answer:
A: x<7/12
Step-by-step explanation:
I hate math too :)
The sign wouldn't be flipped cause you don't have to divide, and 5/6 - 1/4 is 7/12. Hope this helps
HELP! Urgent! What is the answer.
Answer:
ioujyghfdgtrssssfhyjukh
Step-by-step explanation:
Please enter the missing number: 3, 5, 18, 72, ?
A. 144
B. 214
C. 272
D. 360
E. 432
Please explain precisely
Step-by-step explanation:
18 and 5 are both missing if that's what you mean
Answer:
D. 360
Step-by-step explanation: It's being multiplied by plus one more every time you move on to a new term.
So 2*3=6, 6*3=18, 18*4=72, 72*5=360
A train travels 315 km in the same time that a car travels 265 km. If the train travels on average 20 km/h faster than the car, find the average speed of the car and the time taken to travel 265 km.
Answer: 106 km/h,2.5 hr
Step-by-step explanation:
Given
The train travels 315 km in the same time car travels 265 km
The average speed of the train is 20 kmph faster than car
Suppose, speed of the car is v and it travels 265 km in t hours
[tex]\therefore \dfrac{315}{v+20}=\dfrac{265}{v}\\\\\Rightarrow 315v=265\left (v+20\right)\\\\\Rightarrow 315v=265v+5300\\\Rightarrow 50v=5300\\\Rightarrow v=106\ km/h[/tex]
Time taken to travel is
[tex]\Rightarrow t=\dfrac{265}{106}}\\\\\Rightarrow t=2.5\ h[/tex]
PLEASE NO LINKS OR I WILL REPORT YOUR ACCOUNT
=======================================================
Work Shown:
A = pi*r^2
A = 3.14*8^2
A = 200.96
Note that the radius r = 8 is half of the diameter d = 16. I'm using the approximation pi = 3.14, which means the area is approximate. To get a more accurate answer, use more decimal digits of pi. The units of the area are in square feet, which can be written as "sq ft" or as "ft^2".
Find the missing value to the nearest hundredth.
tan ___ = 73
A. 81.61°
B. 64.61°
C. 60.61°
D. 89.22°
Answer:
The answer is 89.22
Step-by-step explanation:
You earn $35 for washing 7 cars. How much do you earn for washing 4 cars?
You earn $
for washing 4 cars.
Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
Answer:
C) {6+√43, 6-√43}
Step-by-step explanation:
Applying,
x = [-b±√(b²-4ac)]/2a.................... Equation 1
From the question,
Given: a = 1, b = -12, c = 7
Substitute these values into equation 1
x = [-(-12)±√(-12²+4×1×7)]/2×1
x = [12±√(144+28)]/2
x = [12±√172]/2
either,
x = (12-√172)/2
x = (12-2√43)2
x = (6+√43)
or
x = (12+√172)/2
x = (12+2√43)/2
x = (6+√43)
Hence,
The right answer is C). {6+√43, 6-√43}
Nelly put the batch of pies in the oven at 6:17 AM when they go into the oven the internal temperature of the pies is 60 Fahrenheit the temperature increases at a rate of 2.5 Fahrenheit per minute if Nelly wants the internal temperature of the pie to reach 160 Fahrenheit at what time should she take them out of the oven?
Answer:
Nelly should take out the pies after 64 mins or an hour and four minutes.
Step-by-step explanation:
please uhm help me heh
Answer:
d=90°
e=81°
f=99°
Step-by-step explanation:
To find f
180-81
=99
Answer:
d = 90°
e = 81°
f = 99°
Step-by-step explanation:
Have a nice day!
Solve this equation for x.
4x+3=5x-4
Answer:
Step-by-step explanation:
X=7
(x - 16)2 + (y - 6)2 = 1 Translated 4 left, 2 up
Answer:
x= -4
y=2
put the values
( -4-16)2+(2-6)2=1
(-20)2+(-4)2=1
-40-8=1
-48 is not equal to 1.
Write the equation for a parabola with a focus at (0,5) and a directrix at x = -7
Answer:
(y-5)^2=14(x+7/2)
Step-by-step explanation:
The equation for a parabola with a focus at (0,5) and a directrix at x = -7 is (y - 5)² = 14 (x + 3.5).
What is Parabola?A parabola is a two dimensional figure on a plane which is U shaped and any point on the parabola is at an equal distance from a fixed point called focus and a fixed line called directrix.
Given,
Focus of the parabola at (0, 5).
Directrix is x = -7.
The parabola is horizontal parabola since the directrix is a vertical line.
Equation of the parabola is of the form,
(y - k)² = 4p (x - h)
Here (h, k) is the vertex.
Vertex of the parabola is the mid point of focus (0, 5) and the point (-7, 5).
(h, k) = ([tex]\frac{0 + -7}{2}[/tex], 5) = (-7/2, 5)
Now, p is the distance from vertex to focus.
p = 0 - -7/2 = 7/2 = 3.5
So the equation is,
(y - 5)² = 4× 3.5 (x - -3.5)
(y - 5)² = 14 (x + 3.5)
Hence the equation is (y - 5)² = 14 (x + 3.5).
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I have a small question what is this-
Given that -5 < -3, which statement is not true?
-5 is to the left of -3 on the number line.
-3 is less than -5,
-3 > -5
-3 is to the right of -5 on the number line.
Answer:
Step-by-step explanation:
negative 5 is less then -3 is the statement. so saying that -3 is less than five, is false.
remember your number line.
-5_-4_-3_-2_-1_0_1_2_3_4_5_6
five sure is to the left of three, and saying that three is to the right of five is the exact same thing.
Can you pls help me
hello please help i’ll give brainliest
Answer:
Papyrus
Step-by-step explanation:
the one that's not right is the 3rd one
Find the measure of the arc or angle indicated
Answer:
the term arc is used for a portion of a circle along its circumference. The size of the arc is usually given by the size of the angle subtended by the arc at the center or the length of the arc. The angle subtended at the center is also known as the angle measure of an arc or informally the arc measure.
Step-by-step explanation:
Answer:
A) 64°
Step-by-step explanation:
By intersecting secants theorem:
[tex] m\angle ACB = \frac{1}{2} (m\widehat {AS} - m\widehat {BD}) [/tex]
[tex] 35\degree = \frac{1}{2} (134\degree - m\widehat {BD}) [/tex]
[tex] 70\degree =134\degree - m\widehat {BD} [/tex]
[tex] m\widehat {BD} =134\degree - 70\degree[/tex]
[tex] m\widehat {BD} =64\degree[/tex]
which of the following can be added without altering any of the fractions?
a. 3x/x-1 + 8/x-1
b. 6x+1/4x-8 + 1/4x+1
c. 6x/x+6 + 6x/x-6
d. 6x/x-7 + x-7/6x
Answer:
a
Step-by-step explanation:
[tex]\frac{3x}{x-1}[/tex] + [tex]\frac{8}{x-1}[/tex]
These fractions have a common denominator and so do not require to be altered.
The numerators can be added to simplify, that is
= [tex]\frac{3x+8}{x-1}[/tex]
The remaining fractions have different denominators and would require to be altered before they could be added.
i need help with this plseeee
Step-by-step explanation:
where is the question? i can help you
Expand the expression by distributing
-2(-4x-7)
Answer:
8x+14
Step-by-step explanation:
EASY MATH!!! GIVING BRAINLIEST!!
Answer:
55
Step-by-step explanation:
So lets take our 50 dollars.
Next, take your increase of 5%. Remember, 5% is 0.05, and it is a increase of 5%, so we are multipling 50 by 1.05.
Before we start multiplying, lets recall that this occurs twice(2 years), but this doesnt mean we multiply 50 by 1.10. No, we just mutiply 50 by 1.05 2 times:
50*1.05
=
52.5
52.5*1.05
=
55.25
So your answer is 55 dollars(rounding down).
Hope this helps!
Answer:55
Step-by-step explanation: