what is the slope of the line that goes through the points (-1, 4) and (2, 10)
Answer:
gradient= 2
Step-by-step explanation:
please i will give you 23 points\
Answer:
see photo for detailed analysis
You are dealt one card from a satndard 52-card deck. Find the probability of being dealt an ace or a 7
Answer:
2/13 or 15.38%
Step-by-step explanation:
Number of Aces in a deck = 4
Number of 7s in a deck = 4
Number of cards in a deck = 52
Probability of A or 7 = (4 Aces + 4 Sevens) / 52 cards 8 cards / 52 cards
This simplifies to 2/13 or 15.38%
is this image a function
Answer:
Yes. it is a non-linear function.Step-by-step explanation:
Functions like these are found on cords. they can be straight (Linear function) or they can bend ore curve (non-linear function).
That's all I have to say.
In the xy-plane, the line determined by the points (2,k) and (k,32) passes through the origin. Which of the following could be a value of k?
(A) 0
(B) 4
(C) 8
(D) 16
Answer:
C
Step-by-step explanation:
calculate the slope m of the 2 points from the origin and equate, since they lie on the same line
m = [tex]\frac{y_{2}-y_{1} }{x_{2-x_{1} } }[/tex]
with (x₁, y₁ ) = (0, 0 ) and (x₂, y₂ ) = (2, k )
m = [tex]\frac{k-0}{2-0}[/tex] = [tex]\frac{k}{2}[/tex]
repeat with
(x₁, y₁ ) = (0, 0 ) and (x₂, y₂ ) = k, 32 )
m = [tex]\frac{32-0}{k-0}[/tex] = [tex]\frac{32}{k}[/tex]
equating the 2 slopes
[tex]\frac{k}{2}[/tex] = [tex]\frac{32}{k}[/tex] ( cross- multiply )
k² = 64 ( take square root of both sides )
k = [tex]\sqrt{64}[/tex] = 8
What is the value of the expression below when x = 4?
4x2 + 7x – 10
Answer:
26
Step-by-step explanation:
1.) Step plug it in ---} 4*2 + 7 (4) - 10
2.) Step multiply what u have so
4 x 2= 8
7 x 4 = 28
3. )Put it back ---} 8+ 28 - 10
4.) Solve from there.
8+28=36
36 - 10 =26
Answer: 57
Step-by-step explanation: First have to put x=4 and do multiplication in brackets then do subtraction and add at the end to get final answern action pien r
The equation of a straight line is 2y=5x-2
Find the gradient and co-ordinates of the y-intercept
Answer:
2y=5x-2
Write the equation in the form of y = mx + b
where m is the gradient and b is the y-intercept.
Therefore, 2y=5x-2 will be:
y = 5/2x - 1
Gradient is 5/2
and y-intercept is (0,-1)
help me find the area please
Split up the region into shapes whose areas are easy to find. (see attached; this is not the only choice of partitioning the figure)
• The larger rectangle has area
(13 ft) × (7 ft) = 91 ft²
• The smaller rectangle has area
(11 ft) × (2 ft) = 22 ft²
• The triangle has area
1/2 × (3 ft) × (3 ft) = 4.5 ft²
Then the total area of the figure is 91 ft² + 22 ft² + 4.5 ft² = 117.5 ft².
H E L P
M E
ASAP
I NEEED THEE ANSWER FOR IT BUT I'D ALSO LIKE TO KNOW THE FORMULA I DON'T UNDERSTAND
well, the shape is a trapezoid, a trapezoid has two parallel sides only, the parallel sides are called "bases", and the distance between the parallel sides is its "height".
so in the trapezoid above, it has two parallel sides, 20 m and 8 m, and the height or distance between both is 7 m, so
[tex]\textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h~~=height\\ a,b=\stackrel{parallel~sides}{bases~\hfill }\\[-0.5em] \hrulefill\\ a=20\\ b=8\\ h=7 \end{cases}\implies \begin{array}{llll} A=\cfrac{7(20+8)}{2}\implies A=\cfrac{7(28)}{2} \\\\\\ A=7(14)\implies A=98~m^2 \end{array}[/tex]
y= – 13x+ 7 12 as a simplified
√54 to the nearest tenth
Answer:
[tex]\sqrt{54}[/tex] = 7.3484 , to the nearest 10th , then is 7.35
Step-by-step explanation:
112square root by division method
The square root of 112 by division method is 4√7
To answer the question, we need to know what square root is
What is the square root of a number?The square root of a number is a number which multiplies itself to give us the given number.
The square root of 112 by division method,Now, to find the square root of 112 by division method, we divide 112 through by successive prime numbers until we can divide no more.
So, 112 ÷ 2 = 56
56 ÷ 2 = 28
28 ÷ 2 = 14
14 ÷ 2 = 7
So, 112 = 2 × 2 × 2 × 2 × 7
112 = 2⁴ × 7
So, √112 = √(2⁴ × 7)
√112 = √2⁴ × √7
√112 = 2² × √7
√112 = 4 × √7
√112 = 4√7
So, square root 112 by division method is 4√7
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PLS HELP 1!1!!1!1!1!1!1!1!
Now consider the logos for Parkside Printing shown.
Determine the actual area of Logo 1 in square meters
The area of the Logo 1 will be 12.48 square meters and the area of the Logo 2 will be 9.6 square meters.
What is Geometry?It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
Now consider the logos for Parkside Printing shown.
Determine the actual area of Logo 1 and Logo 2 in square meters will be
The area of the Logo 1 (A₁) will be
[tex]\rm A _1 = 12 \times 8 - 6 \times 3\\\\A_1 = 78 \ cm^2\\\\A_1 = 78 \times 0.16 \ m^2\\\\ A_1 = 12.48 \ m^2[/tex]
Then the area of the Logo 2 (A₂) will be
[tex]\rm A_2 = \dfrac{1}{2} \times 12 \times 10\\\\A_2 = 60 \ cm^2\\\\A_2 = 60 \times 0.16 \ m^2\\\\A_2 = 9.6 \ m^2[/tex]
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A cone has a volume of 847.8 cubic millimeters and a radius of 9 millimeters. What is its
height?
User pie= 3.14 and round your answer to the nearest hundredth.
hz
millimeters
Answer:
10
Step-by-step explanation:
Volume of a cone is:
V = 1/3pi•r^2•h
Fill in the given information.
847.8
= 1/3(3.14)9^2•h
847.8 = 84.78h
divide by 84.78
10 = h
The two dot plots below show the heights of some sixth graders and some seventh graders:
Two dot plots are shown one below the other. The title for the top dot plot is Sixth Graders and the title for the bottom plot is Seventh Graders. Below the line for each dot plot is written Height followed by inches in parentheses. There are markings from 52 to 57 on the top line and the bottom line at intervals of one. For the top line there are 2 dots above the first mark, 1 dot above the second mark, 1 dot above the third mark and 2 dots above the fourth mark. For the bottom line, there is 1 dot for the first mark, there are 3 dots above the second mark, 2 dots above the third mark.
The mean absolute deviation (MAD) for the first set of data is 1.2 and the MAD for the second set of data is 0.6. Approximately how many times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders? (Round all values to the tenths place.)
0.3
1.2
1.7
2.0
Answer: 2.0 (choice D)
Reason:
We divide the two mean absolute deviation (MAD) values to get (1.2)/(0.6) = 2.0
The variability in the first set (the 6th graders) is exactly twice that of the variability of the second set (the 7th graders).
The MAD is one measure of variability or spread. Another would be the standard deviation. The larger the value, the more spread out the data points will be.
please i need help asap!!
Answer:
(-4,-1) is the answer to this.
Help asap !!!! I need a answer to this really really quick
Answer:
a
Step-by-step explanation:
rise over run 10/5 simplifies to 2/1
Can you help me?
Find the h
Find h
Answer:
h=6
Step-by-step explanation:
according to Pythagorean theorem
h²=p²+b²
p²= 10²-8²
h²=100-64 by question (p=h)
h√36
h=6
Von makes a design with four lines. At least two of them are
parallel. He says that his design shows vertical angles,
corresponding angles, alternate interior angles, and linear
pairs of angles.
Draw a diagram of Von's design. Label the lines a, b, c, and d,
and label the angles formed by the lines 1, 2, 3, 4, and so on.
Describe how the lines are related. List all of the angles that
are congruent to Z1 in your
diagram. Then list all of the
angles that are congruent to Z2.
Name one pair of angles in your diagram to illustrate each
angle relationship mentioned in Von's description. Tell how
you
know that the angles illustrate the relationship.
-CAN SOMEONE PLEASE HELP IT DUE TODAY
Answer:
yes it help me when I'm doing my work
SOLVE FOR X !!!!!!! WILL ALWAYS GIVE BRAINLIEST!!!!!!!
Answer:
59 degrees
Step-by-step explanation:
Inscibed angles in a circle encompass TWICE their value of arc degrees
2x = 118
x = 59 degrees
Factorise:
vii)p^2+14p+13
Please help me....
Answer:
(p+13)(p+1)
Step-by-step explanation:
p² + 14p + 13
we want to find two numbers that add to 14 and multiply to 13
we can start looking by listing the factors of 13
we get 13 and 1 and -13 and -1
13 and 1 multiply to 13 ( 13 × 1 = 13 ) and add to 14 ( 13 + 1 = 14 )
-13 and -1 multiply to 13 ( -13 × -1 = 13 ) and add to -14 ( -13 + -1 = -14 )
the two numbers that would add to 14 and multiply to 13 would be 13 and 1
now we can factor out the two numbers from 14 and split the p from p² to get (p+13)(p+1)
and we are done
Please help I'm stuck on this question! worth 15+ points!!
Answer:
152
Step-by-step explanation:
360-(118+54)
Answer:
90°
Step-by-step explanation:
Taking ΔVWX :
∠V = ∠X (equal angles opposing equal side lengths)Using the Angle Sum Property,∠V + ∠W + ∠X = 180°b + 2∠V = 180°b + 2(45) = 180°b + 90° = 180°b = 90°
Jaylen earns $4250 each month at his job. At this rate, how much will he
make in a year and a half?
O
A. $51,000
B. $54,000
C. $76,500
D. $81,000
Answer:
C. 76,500
Step-by-step explanation:
18 months in 1 [tex]\frac{1}{2}[/tex] years.4250 x 18 = 76,500how do i solve x+20+10x=20+9x
Answer:
0
Step-by-step explanation:
10x-9x=20-20
x=0
i need the answer to this question ASAP
Answer
the answer is in the attached image
Step-by-step explanation:
just pretend the x is a d lol
please answer!!! will give a lot of points and brainliest if i can figure that out
Answer: 2√14
Step-by-step explanation:
^2=squared
let the missing side =x
9^2-5^2=x^2
81-25=56
56^2
√54
=2√14
Answer:
10.295630141 or 10.3
Step-by-step explanation:
Pythagorean Theorem
[tex]c^{2} = a^{2} + b^{2}[/tex]
add in known sides
[tex]9^{2} + 5^{2} = 106[/tex]
square root
[tex]\sqrt{106}[/tex]
Answer: 10.295630141 or 10.3 rounded
Evaluate
(-315) ×4
with the correct explaination
[tex]\Large\textsf{\textbf{Answer\::}}[/tex]
-1, 260
[tex]\large\textsf{\textbf{Calculations\;:}}[/tex]
First , take a look at the signs of the numbers we're asked to multiply .
One of them is negative , and the other one is positive .
If we have a negative number times a positive number , the product is a positive number .
Multiply :
(-315) × 4
-1, 260 (Ans)
[tex]\footnotesize\text{hope\:helpful~}[/tex]
HELP QUICK!! ASAP! I NEED HELP ON THIS EQUATION. I WILL MAKE BRAINLIST
What is the rectangular equivalence to the parametric equations?
x(θ)=4cosθ+2,y(θ)=2sinθ−5 , where 0≤θ<2π .
The rectangular equivalence of the parametric equations is given as:
an ellipse that is focalized on (2, -5) with semi-major axis of 4 and semi-minor axis of 2.
A parametric equation is the type which has dependent variables defined as a continuous function of the independent factor - t, and the dependent variables are mutually exclusive of other existing variables.
What is the calculation for the above?Step 1 - Note that we have the following terms:
x(θ)=4cosθ+2,
y(θ)=2sinθ−5
Step 2 - Rewrite the above equations
x = 4 -cos(θ) +2;
y = 2 -Sin (θ) - 5
We rewrite again as
[tex]\left( \frac{x-2}{n}\right)^{2}[/tex] = cos (θ)²; [tex]\left( \frac{y+5}{n}\right)^{2}[/tex] = sin(θ)²
Recall that
cos (θ)² + sin(θ)² = 1
Therefore,
[tex]\left( \frac{x-2}{n}\right)^{2}[/tex] + [tex]\left( \frac{y+5}{n}\right)^{2}[/tex] = 1
The result is an ellipse with the center (2, -5) with a semi-major axis of 4 and a semi-minor axis of 2. See the result of the Parametric Graph Plot attached.
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Last year we tested 70 kids on Unit 8. This year we tested 20% less kids. How many kids did we test this year?
Answer: 56 kids
Step-by-step explanation: 70 * 0.2 = 14 70 - 14 = 56
Last year we tested 70 kids on Unit 8 and this year we tested 20% less kids then we tested 56 kids on Unit 8 this year.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
If we tested 20% less kids this year, it means we tested only 80% of the number of kids we tested last year.
To find out how many kids we tested this year, we can use the following equation:
number of kids tested this year = 0.8 × number of kids tested last year
Substituting the given values, we get:
number of kids tested this year = 0.8 × 70
number of kids tested this year = 56
Therefore, we tested 56 kids on Unit 8 this year.
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