The time in minutes for each of Sam's phone calls this week are shown in the list. {9, 15, 5, 7, 9, 12, 11, 4} Which statement is true regarding the duration of his calls? A. The median is greater than 10. B. The mean is less than 8. C. The range is less than 10. D. The mode is greater than 7.
Answer: The mode is greater than 7.
Step-by-step explanation:
The time in minutes are given as 9, 15, 5, 7, 9, 12, 11, 4. We can arrange them in ascending order and this will be:
= 4, 5, 7, 9, 9, 11, 12, 15
Mean = (4 + 5 + 7 + 9 + 9 + 11 + 12 + 15) / 8 = 9
Median = 9+9/2 = 18/2 = 9
Mode = 9
Range = 15 - 4 = 11
Therefore, the true statement are:
D. The mode is greater than 7.
PLEASE HELP!!!! The polynomial p (x) = (3 – 2x) (x2 – 5) is graphed in the coordinate plane. Which statement
about the graph is correct?
Did you ever find the answer ?
Based only on the information given in the diagram, which congruence
theorems or postulates could be given as reasons why ADEF= AKLM?
Check all that apply.
AA
O A. LA
ОВ. НА
O C. AAS
D. SAS
E HL
F.LL
=================================================
Explanation:
LA stands for Leg Angle. More specifically, the angle is an acute angle. This theorem only works for right triangles. We see that ED = LK which is one pair of congruent leg segments. So that takes care of the L part of LA. However, we don't know anything about the acute angles. We don't know if angle E = angle L, or if angle F = angle M, or something along those lines. We need angle markers to tell us or not.
In short, we only have half the info needed for LA, so we must cross choice A off the list.
----------------
HA stands for hypotenuse angle, or hypotenuse acute angle, and this rule only applies for right triangles. We don't know anything about the hypotenuse lengths if they are the same or not.
Similar to choice A, we don't know anything about the acute angles either.
Those two facts mean we must cross off choice B.
----------------
AAS stands for Angle Angle Side. The order is important because the side is not between the angles. The diagram only shows one pair of angles that are congruent to one another. That pair being the 90 degree angles indicated with the square marker. We don't have another pair of angles, so we cannot use AAS.
Cross choice C off the list.
-----------------
We can use SAS because we have two pairs of congruent sides and one pair of congruent angles.
The congruent sides are
ED = LK (double tickmarks)DF = KM (single tickmarks)That takes care of the two "S"s of "SAS". The "A" would be those two right angles which are congruent to one another. The angles are between the congruent sides which is important. Recall that SSA is not a valid congruence theorem.
So that's why choice D is the only answer.
-----------------
Side note: We could use the LL theorem, where L stands for leg, since we are given two pairs of congruent legs for each triangle. Like LA and HA, this only applies to right triangles. LL is a special case of SAS. However, LL isn't listed so we'll just be sticking with SAS as the only answer.
For the function whose graph is shown, which is the correct formula for the function?
A. y = |x| – 1
B. y = |x – 1|
C. y = |x| + 1
D. y = |x + 1|
Can someone tell me why is nobody helping me in this app come on y’all help
Answer:
x = 3/2
Step-by-step explanation:
7/3 = (x + 2)/x
7x = 3(x + 2)
7x = 3x + 6
4x = 6
x = 6/4 = 3/2
There, someone helped you. Now could you do it alone next time?
please help asap!!
have a good day
Answer:
60
Step-by-step explanation:
Because there are 4 different trim levels, 5 different colors, and 3 different interiors, you have to multiply 4 x 5 x 3.
4 x 5 x 3= 60
find the geometric mean between 12 and 20 find the answer in radical form
Answer:
4√15
Step-by-step explanation:
The geometric mean of x and y is √(xy).
So here we have:
√(12*20)
= √240
= √(16*15)
= √16√15
= 4√15.
Need answers ASAP please and Thankyou!
Answer:
A = 65deg
B = 78deg
Step-by-step explanation:
It's a triangle, so we know that the sum of angles is 180deg
x + (2x - 9) + (2x + 4) = 180
5x - 5 = 180
5x = 185
x = 37
Measure of angle A = (2*37 - 9)deg = 65deg
Measure of angle B = (2*37 + 4)deg = 78deg
Find the area of this triangle. Round to the nearest tenth
Answer: 108.83 yd²
Step-by-step explanation:
First find height.
Use trigonometric ratios:
sin85 = h/9.5
h = 9.5sin85 = 9.46 yd
Use the following formula:
A = [tex]\frac{1}{2}[/tex]bh
A = [tex]\frac{1}{2}[/tex] (23)(9.46)
A = 108.83 yd²
(3RD TIME POSTING THIS!)
10.Solve the inequality
r + 0.2 < 0.7
Answer:
r can be any number so would it not be:
r + 0.2 ≤ 0.7
Step-by-step explanation:
This should not be too hard but I haven't done inequalities in a long time. So this might or not be the answer.
Round to the nearest 10th
How many grams is 3.3 mole of Mg(OH)2 ?
Answer: m = 3.3 mol·58.326 mol = 192 g
Step-by-step explanation: molar mass of substance is
M= (24.31+ 2·1.008 + 2·16) g/mol = 58.326 g/ mol.
Amount of substance n = m/M and mass m = n·M
Mr. Drew wants to build a square sandbox with an area of 121 square feet. What is the total length
of wood Mr. Drew needs to make the sides of the sandbox ?
Kayla has 562 cookies. Her friend comes by and eats 37 of them. What does this mean?
Answer:
Step-by-step explanation:
it means that her friend ate 37 cookies from the 561 cookies that kayla had before she ate them
Answer:
it means That Kayla is about to catch a body
Step-by-step explanation:
Two lines intersect as shown.
(2x+20) •
609
Which is the value of x ?
Answer:
[tex]2x + 20 = 60 \\ 2x = 60 - 20 \\ 2x = 40 \\ x = \frac{40}{2} \\ x = 20[/tex]
A = 1/2 (18 + 6) * 8
Answer:
a+ 96
Step-by-step explanation:
A= (1/2*18 + 1/2*6) *8
A= (9 + 3) * 8
A= 12 * 8
A= 96
Ms. Good has a bag of 15 marbles. Three are blue, six are red, and six are yellow. What is the probability that she picks a yellow and then a red if she does NOT replace the marbles?
Question 7 options:
A. 6/35
B. 1/8
C. 16/25
D. 1/36
Answer:
the chances of her picking a yellow one is 6 in 35
Step-by-step explanation:
A basket contains four apples and five peaches. Three times, you randomly select a piece of fruit, return it to the basket, and then mix the fruit. Find the probability all three times, the fruit is an apple.
HELP
Answer:
12
Step-by-step explanation:
(1×3)+(1×3)+(1×3)+(1×3)
3+3+3+3
12 apples
Camile shaded 18/30 of a model write the decimal that represents the unshaded portion of the model
Answer:
.4
Step-by-step explanation:
Camile shaded 18/30 of a model.
Thus the unshaded portion of the model is:
30 - 18 = 12
12/30
12/30 = 0.4
The graph of linear function f passes through the point (1, -9) and has a slope of -3. What is the zero of f?
Explanation is in the file
tinyurl.com/wtjfavyw
What is the example of ratio?
Answer:
Step-by-step explanation:
f there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8∶6, which is equivalent to the ratio 4∶3). Similarly, the ratio of lemons to oranges is 6∶8 (or 3∶4) and the ratio of oranges to the total amount of fruit is 8∶14
There are 1000 meters in a kilometer. How far is the distance between Earth and
Voyager 1 in kilometers? *
6. If linear combination is the method used to solve this system of equations, what is the result of the first step?
x + y = 6
x - y = 2
A. 2y = 8
B. 2x = 8
C. x + y = 8
D. x - y = 8
Answer:
the answer is B
Step-by-step explanation:
x + x = 2x
y - y = 0
6 + 2 = 8
2x = 8
NEED THIS QUESTION WUICK PLEASE
option three, I think
[tex]3 \sqrt[3]{4} [/tex]
someone help me. ty
Look at screenshot for question
Find the slope and the y-intercept of the line whose equation is -5x+3y-8=0
The slope is 5/3 and the h intercept is (0,8/3)
1. Rewrite the equation 5(x - 3) = x + 13 with 6 substituted for x. Write a
question mark over the equal sign to show that you're testing to see if the
equation is true
2. Simplify both sides. Show your work.
3. Is x = 6 a solution to the equation? Why or why not?
4. Find a value of x that is a solution to 5(x - 3) = x + 13. Describe how you
found the solution
Answer:
Step-by-step explanation:
5(6-3)=6+13 -simplify
30-15=6+13
15=19
x doesnt equal 6
5(x-3)=x+13
5x-15=x+13
4x=28
x=7
4x=28
4(7)=28
28=28
H E L P I M S L O W ! ! !
Answer:
Reflection across the x-axis
Step-by-step explanation:
The points are the same, just opposite of one another. The image looks as if it is a reflection. Think of the x-axis like a puddle and the shape looking into it; try to picture the image seeing its reflection to help.
Answer:
Reflection across the x-axis.
Step-by-step explanation:
The triangles mirror each other with the x-axis acting like said mirror.
Solve the area of a trapezoid formula for the variable h: A = 1/2h(b1 + b2)
Note: In this formula, A = area, H = height, and b1 and b2 are the bases of the trapezoid.
The area of the trapezoid formula can be solved for the variable h as,
h = 2A / (b1 + b2)
Given the formula to find the area of the trapezoid.
A = 1/2 (b1 + b2) h
Here A is the area, h is the height and b1 and b2 are the bases of the trapezoid.
We have to get an equation for formula in h.
That is, we need to isolate h alone on one side and the other terms and variables on other side.
Multiplying whole equation with 2,
2A = (b1 + b2) h
Dividing whole by (b1 + b2),
h = 2A / (b1 + b2)
Hence the required equation is h = 2A / (b1 + b2).
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