Answer:
Step-by-step explanation:
Estimate the line of best fit using two points on the line.
(5, 60)
(3, 44)
O A. y= 5x + 20
O B. y = -5x + 16
O C. y= -8x + 16
D. y = 8x+ 20
The estimated equation of line is y = 8x+ 20
What is linear equation?
A linear equation is defined as an equation in which the highest power of the variable is always one.
Two points on the line (5, 60), (3, 44)
[tex]y- y_1= \frac{y_2-y_1}{x_2-x_1} (x-x_1)[/tex]
[tex]y- 60 = \frac{60-44}{5-3} (x-5)[/tex]
[tex]y- 60 = \frac{16}{2} (x-5)[/tex]
[tex]y = 8 (x-5)+ 60[/tex]
[tex]y = 8x+ 20[/tex]
Hence, the estimated equation of line is y = 8x+ 20
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What is the slope of the straight line that goes
through (1, 8) and (3, 4) ?
Answer:
-2
Step-by-step explanation:
Slope of the line
[tex] = \frac{8 - 4}{1 - 3} \\ \\ = \frac{4}{ - 2} \\ \\ = - 2[/tex]
Regina has 16 pencils. James has 3 times as many pencils as Regina.
What are two ways to find the number of pencils James has?
A. 16 + 3 and 16 X 3
B. 16 + 16 + 16 and 16 x3
O C. 3+3+3 and 48 X3
D. 16 + 3 and 3 X 48
E. 3+3+3 + 16 and 16 X 3
Answer:
B
Step-by-step explanation:
Write the standard equation of the circle with center (5,-4) and radius 3.
OA (-5)2 + (y + 42 =9
B. (x + 5)2 + (y-4)2 = 9
C. (x+4)2 = (y-5)2 = 3
D. (x+5)2 + (-4)2 =3
Answer:
A. (x - 5)^2 + (y + 4)^2 = 9
Step-by-step explanation:
The standard equation of a circle is in the form:
(x - h)^2 + (y - k)^2 = r^2
where (h, k) is the center and r is the radius. We can substitute what we have:
(x - 5)^2 + (y + 4)^2 = 9
What is the GCF of 18 and 54?
Answer:
its 18 because 18 goes into 18 and 54. goes in 54 3 times
Step-by-step explanation:
A circle has a diameter that measures 14 inches. What is the area of the circle to the nearest
tenth? Use 3.14 for s.
Answer:
153.9 squared inches
Step-by-step explanation:
The formula for area of a circle is:
A=πr²
---------------------------------------------------------------------------------------------------------------
So:
3.14 × 49 = 153.9
----------------------------------------------------------------------------------------------------------------
Have a good day :)
Answer:
153.9
Step-by-step explanation:153.9
Find the percent error in this situation:
Estimated value: 56
Actual value: 43
23.2%
0.302%
30.2%
0.232%
Answer:
30.2%
Step-by-step explanation:
Use the percent error formula:
| (experimental - actual) / actual | x 100
Plug in the experimental and actual values:
| (experimental - actual) / actual | x 100
| (56 - 43 ) / 43 | x 100
(13 / 43) x 100
= 30.2
So, the percent error is 30.2%
Please help it’s geometry will mark brainliest!
Answer:
its 216
Step-by-step explanation:
when it's one the edge the arc is double the angle
PLEASE HELP EASY MATH!!!!
Work out
(8×10^-2)−(4×10^-4)
Give your answer in standard form.
Answer:
7.96 x 10^2
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10
. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
The standard form of [tex]8\times10^{-2} - 4\times10^{-4}[/tex] is [tex]\frac{38}{5000}[/tex].
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, [tex]8\times10^{-2} - 4\times10^{-4}[/tex].
[tex]= \frac{8}{10^2} - \frac{4}{10^4}[/tex].
[tex]= \frac{8}{100} - \frac{4}{10000}[/tex].
[tex]= \frac{80 - 4}{10000}[/tex].
[tex]= \frac{76}{10000}[/tex].
[tex]= \frac{38}{5000}[/tex].
learn more about numerical expressions here :
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yo please help i’ll give u a brainliest
Answer:
4
Step-by-step explanation:
1st: do 2x3=6 so if 1 6in scoop makes one pitcher of tea then you could make about 4 pitchers of tea because there are the volume of the pitcher of tea mix is 24in so 24/6=4
Graph the points (0, 6) and (-8, 0). Which of the following points would create a right triangle?
A (-6,8)
B(-8,6)
C(8, -6)
D(6,-8)
Answer:
D, I think. Screenshot attached with the points.
Step-by-step explanation:
We have given two points (0, 6) and (-8, 0). The third point (8, -6) will make a complete right-angle triangle.
What is the right triangle?
A right-angle triangle is a triangle that has a side opposite to the right angle the largest side and is referred to as the hypotenuse. The angle of a right angle is always 90 degrees.
We have given two points (0, 6) and (-8, 0). we want to find Which of the following points would create a right triangle.
We have mentioned the points on the graph that represent a right-angle triangle. we know that the point (8, -6) will make a complete right-angle triangle.
Learn more about a right angle;
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find the value of x:)
Answer:
180 - 58 - 42 = x : sum of angles in a triangle add to 180
80 = x
The bowling team at Lincoln High School must choose a president, vice president, and secretary. If the team has 19 members, how many ways could the officers be chosen?
Answer:
Officers can be chosen in 5,814 different ways.
Step-by-step explanation:
Given that the bowling team at Lincoln High School must choose a president, vice president, and secretary, to determine, if the team has 19 members, in how many ways could the officers be chosen, the following calculation must be performed:
19 x 18 x 17 = X
342 x 17 = X
5.814 = X
Therefore, officers can be chosen in 5,814 different ways.
If 3 men can paint 4 houses in 5 days , how many days does it take for 7 men paint 14 houses ??? help me plz
Answer:
3men = 4houses= 5days
7men= 14houses= x days
14÷7 = 2days
2x + 4y = 16
3x - 2y = 8
Solve using substitution method
100 POINTS PLS ANSWER
Answer:
(4,2) or x=4, y=2
Step-by-step explanation:
As your question asks, we'll solve the system of equations by substitution, where we'll solve for the value of one variable and than substitute that value into the other equation and solve for the two variables
we're given the system:
2x+4y=16
3x-2y=8
Let's take the first equation:
you can isolate either x or y, but I'll do x for this problem
2x+4y=16
subtract 4y from both sides
2x=-4y+16
divide both sides by 2
x=-2y+8
now take the second equation (3x-2y=8) and substitute -2y+8 as x
3(-2y+8)-2y=8
do the distributive property
-6y+24-2y=8
combine like terms
-8y+24=8
subtract 24 from both sides
-8y=-16
divide by -8
y=2
we found the value of y. However, we also need to find the value of x
above, we said that x=-2y+8; since we found the value of y, we can substitute that value into the equation and find x
so:
x=-2(2)+8
x=-4+8
x=4
the answer is x=4, y=2. If you need it as a coordinate point, it's (4,2)
Hope this helps!
please help i’ll give brainliest!!! thanks
Answer:
The answer is diseases I think
Step-by-step explanation:
This recipe makes 20 cupcakes. Deepak only wants to make 15 cupcakes. How much of each ingredient does he need? Recipe: Makes 20 cupcakes 10 ounces butter 12 ounces sugar 8 ounces flour 4 eggs
Answer:
9.6 ounces of butter, 8 ounces of sugar, 12 ounces of flour, 4 eggs
Explanation: 20 / 16 = 4/5. 16 is four-fifths of 20. So multiply 4/5 with everything.
12 * 4/5 = 9.6 ounces
10 * 4/5 = 8 ounces
15 * 4/5 = 12 ounces
5 * 4/5 = 4 eggs
hey! i hope your day been good so far ! can anyone help me :)?!
Answer:
Its 7/ 8
dive the 10 1/2 by the 3/4
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
3/4 / 10 1/2 = 1/14
3/4 * 14 = 10 1/2
Express 9+9+9+9 as a single multiplication operation.
Answer:
9 x 4
Step-by-step explanation:
Write the definition of "congruent" in your own words.
Answer:
The same shapes but flipped or turned.
Step-by-step explanation:
Answer:
the same shape and size but we allowed to flip slide or turn
hope this help
Please help me this is my last question
Answer:
x=-22
Step-by-step explanation:
Someone help me pls
the answer is A
5^-8 × 5^4= 5^-8+4
= 5^-4
= 1/5^4
Please help me find the perimeter and area of each polygon. Will mark brainlyist plus 30 points! It’s due in an hour
Answer:
Step-by-step explanation:
for the triangle:
1.9x8/2= 7.6mi (this is area)
perimeter=17mi
for the trapezoid:
area= 18.36+13.6=31.96yd
perimeter=24.1yd
he total cost of a vase of spring flowers at a flower shop depends on the number of flowers ordered. The vase costs $3, and each flower costs $2.50. Which equation can be used to findc,the total cost of the vase withfflowers?
Answer:
3+2.50x
Step-by-step explanation
x represents how many flowers you bought which you mulitply with 2.50 since each flower is 2.50 dollars. Then you add 3 since the cost of the vase is 3 dollars.
Please help me with this
Answer:
F
Step-by-step explanation:
with 5th, you are going to muliply the fraction by 20 to get the answer as a decimal/percent.
0.75=3/4
4/9=0.44 re
6.5=650%
Plz help will mark brainliest
Answer:
Hmmmm...I believe the answer is letter D.
Will mark brainliest! Please help me :(
Michael is planting a garden. It has the shape of a right triangle. He wants 4 plants for each square yard of area. How many plants does he want in the garden?
Answer:
336 plants
Step-by-step explanation:
Area of a right triangle= 1/2•base•height
A= 1/2bh
A= 1/2•7•24
A= 84 yards^2
# of plants= yards^2•4
84•4= 336 plants
Hope this helped! Let me know my math was off of if you have any questions
What is the missing side? HELP!!!
Mia went for a long bike ride. She rode 10.25 kilometers each hour for 4.25 hours, how far did Mia travel on her bike ride?
•44.5625 km
•43.5625 km
•40.5000 km
•14.5000 km
Answer:
B..... 43.5625 km
Step-by-step explanation: