Answer:
-2 would be the answer
Step-by-step explanation:
Can you please mark me brainliest answer
Consider the line 7x+8y=-5.
What is the slope of a line perpendicular to this line?
What is the slope of a line parallel to this line?
Answer:
Step-by-step explanation:
7x + 8y = -5
8y = -7x - 5
Divide the whole equation by 8
[tex]\frac{8y}{8}=\frac{-7x}{8}-\frac{5}{8}\\\\y =\frac{-7}{8}x-\frac{5}{8}[/tex]
Parallel lines have same slope
Slope of the parallel line = (-7/8)
Slope of the line perpendicular to this line = -1/m = -1 ÷ (-7/8)
[tex]= (-1)*\frac{8}{-7}\\\\= \frac{8}{7}[/tex]
what’s the value of x?
Answer:
x = 20
Step-by-step explanation:
Assuming that both lines are straight lines, we can make opposite sides equal. So... 3x+50 = 6x-10 --> 3x+60=6x --> 60=3x --> x=20
Find the area of the yellow region.
Round to the nearest tenth.
5 ft
Area = [ ? ] ft2
Answer:
yellow area = 5.37 ft²
Step-by-step explanation:
area of square = L x W = 5 x 5 = 25 ft²
radius = 2.5 ft
area of circle = PiR² = (3.14)(2.5²) = 19.63 ft²
25 - 19.63 = 5.37 ft²
The area of the yellow region is 5.375 square feet.
What is area?Area is the amount of space occupied by a two-dimensional figure. In other words, it is the quantity that measures the number of unit squares that cover the surface of a closed figure. The standard unit of area is square units which is generally represented as square inches, square feet, etc.
Given that, the side of a square = 5 feet and radius of a circle = 2.5 feet.
Here, area of a square = side²
= 5²
= 25 square feet
Area of a circle = πr²
= 3.14×2.5²
= 19.625 square feet
So, the area of the yellow region = 25-19.625
= 5.375 square feet
Therefore, the area of the yellow region is 5.375 square feet.
Learn more about the area here:
https://brainly.com/question/27683633.
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The rate of change of y is proportional to y. When t = 0, y = 4, and when t = 2, y = 8. What is the value of y when t = 3?
Solution :
Given :
The rate of change of y is proportional to y.
Therefore, [tex]$\frac{dy}{dt} \propto y$[/tex]
[tex]$\frac{dy}{dt} = k y$[/tex] , where k is the proportionality constant
[tex]$\frac{dy}{y}=k \ dt$[/tex]
Taking integration on both the sides,
[tex]$\int \frac{dy}{y}=\int kdt$[/tex]
[tex]$\int \frac{dy}{y}=k\int dt$[/tex]
[tex]$\ln |y| = kt+C$[/tex], where C is the integration constant
[tex]$y=e^{kt+C}$[/tex]
[tex]$y=e^{kT}e^C$[/tex]
[tex]$y(t)=C_1e^{kt}$[/tex] ....................(1)
When t = 0, y = 2, so
[tex]$2=c_1e^{k\times 0}$[/tex]
[tex]$2=c_1e^{ 0}$[/tex]
[tex]$2=C_1$[/tex]
From equation (1),
[tex]$y=2e^{kt}$[/tex] ........................(2)
when t = 2, y = 4
[tex]$4=2e^{k\times 2}$[/tex]
[tex]$e^{2k}=\frac{4}{2}$[/tex]
[tex]$e^{2k}=2$[/tex]
[tex]$2k= \ln(2)$[/tex]
[tex]$k=\frac{1}{2} \ln(2)$[/tex]
From (2),
[tex]$y=2e^{\frac{1}{2}\ln(2)t}$[/tex]
[tex]$y=2e^{\frac{t}{2}\ln(2)}$[/tex]
[tex]$y=2e^{\ln(2)^{t/2}}$[/tex]
[tex]$y=2.2^{t/2}$[/tex]
When t = 3,
[tex]$y = 2 . 2 ^{3/2}$[/tex]
[tex]$y=2[(\sqrt2)^2]^{3/2}$[/tex]
[tex]$y= 2. 2\sqrt2$[/tex]
[tex]$y=4 \sqrt2$[/tex]
What will be the linear equation for the shown table?
Answer:
y=2x+5
Step-by-step explanation:
To find a linear equation you must find the slope and y intercept to create an equation in y=mx+b form (slope-intercept form)
So slope is = y2-y1 / x2-x1 [2 and 1 are subscripts] so 11-7/3-1 so m=4/2 = 2
Slope = 2, now find b
So using y = mx + b, substitute what you know so 7 = 2(1) + b so b=7-2 = 5
Put it all together y = 2x + 5
What is the measurement of angle C? Part C
Answer:
130 degrees is your answer
Step-by-step explanation:
The measurement of angle C is given by the expression 180° – 25° – 25°. So, angle C measures 130°.- answer from edmentum
What is 5 4/7 as an improper fraction
Answer:
39/7
Step-by-step explanation:
Step 1
Multiply the denominator by the whole number
7 × 5 = 35
Step 2
Add the answer from Step 1 to the numerator
35 + 4 = 39
Step 3
Write answer from Step 2 over the denominator
39/7
TIMED!! please help me find the measure of angle 5, 6, and 7
Answer:
Description
Step-by-step explanation:
5 = 47, vertical angles
6 = 74, triangle interior angles add up to 180
7 = 59, linear pairs add up to 180
I NEED HELP!!
Pls help
Answer:
Number 4
Step-by-step explanation:
A theoretical probability chance is a probably where all the other chances are equal. In this case, you can roll 6 different types of numbers on the dice: 1, 2, 3, 4, 5, and 6. And the number of times the dice was rolled was 60 times. So, we can divide 60/6 because there were 60 rolls and 6 different possibilities. 60/6=10, so 10 is the theoretical probability. As you can see, the graph shows that the number 4 was rolled 10 times, which means that number 4 is the experimental probability that matched the theoretical probability.
What is congruent in this problem?
Answer:
Step-by-step explanation:
SVT and TVU
Hope that helps!
a man gives 40 percent of his money to his children and 20% of the remaining to a trust if we still left with 9600 what did he originally have
Answer:
20000
Step-by-step explanation:
9600 = 80% after he gave 40% to his children
80%=4/5
9600 / 4 * 5 = 12000
12000 = 60% of the original
60%=3/5
12000 / 3 * 5 = 20000
You charge $2 per square yard to paint.Which equation can you solve to find the amount you will charge to paint a triangular wall with a base of 4 yards and a height of 6 yards?
Answer:
2(1/2 x 4 x 6) = x
expaination:
area of triangle = 1/2 x 2 x 6 sq yards
multiply by $2/sq yard
Answer: $24
Step-by-step explanation:
The formula for a triangle is 1/2 times base times height
so 0.5 x 4 x 6
0.5 x 4 = 2
2 x 6 = 12
12 x $2 = 24
so you charge $24 dollars
Hope this helps.
6 Find the Surface Area of the below image. 4 cm 10 cm 7 cm Part A There are pairs of rectangles in this Rectangular Prism.
Answer:
I think the surface area is 276 if I'm not mistaken hope this helps!
convert into 24 hours clock.4.17pm
Answer:
16:17
Step-by-step explanation:
when it's pm, add 12 to the 12 hr time
The lengths of two sides of a triangle are shown below:
Side 1: 3x2 − 6x − 10
Side 2: 9x + 5x2 − 8
The perimeter of the triangle is 6x3 + 10x2 − x − 3.
Part A: What is the total length of the two sides, 1 and 2, of the triangle? (5 points)
Part B: What is the length of the third side of the triangle? Hint: Take Perimeter minus 2 sides combined.
(10 points)
Answer:
Part A) [tex](3x^2 - 6x - 10) + (5x^2 + 9x - 8 ) =8x^2 + 3x - 18[/tex]
Part B) [tex](10x^2 - x - 3) - (8x^2+3x-18) = 2x^2 -4x+15[/tex]
a b c or d thanks for helping me
Answer:
either A,B,C, or D?
Step-by-step explanation:
Help me? Please guys!
Answer:
B
Step-by-step explanation:
Mara has no money. In order to buy a gift, she borrowed $35 from her mom. When her birthday came, she received $125 dollars. If she repays her mom, how much money will she have?
Answer:
She will have $90 left over!
Step-by-step explanation:
Hope this is correct!
Which pair of adjacent angles is supplementary?
A. Pair A
B. Pair B
C. Pair C
D. Pair D
Answer:
correct answer
Step-by-step explanation:
Find the height of the triangle?
Help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help. If you help me I will thank to you and also mark you as Brainly.
Answer:
12
Step-by-step explanation:
a^2 +b^2 = c^2
5^2 + b^2 = 13^2
25 +b^2 = 169
b^2= 169-25
b^2=144
b= [tex]\sqrt{144}[/tex]
b= 12
solve for x in example 2. x =_________
10x+20=145
If 9x²+24x+c is a perfect square, then c is?
Answer:
the value of c is 4. or may consider it 4square as per the formula
hope is helps you.
you may Mark me as brainliest
Help me please, thank you!
Answer:
8
Step-by-step explanation:
18-10=8 units
Answer:
8
Step-by-step explanation:
The total height of the rectangle and triangle is given as 18
The height of the rectangle is given as 10 , then
height of triangle = 18 - 10 = 8
у= 2/3x - -6 % what is the slope and intercept?
Answer:
The slope is 2/3 and the intercept is ( 0 , 6 )
sorry if I am wrong
PLEASE HELP!! Explain step by step how to graph 2x-3y<18
Answer: Graph the inequality by finding the boundary line, then shading the appropriate area. In slope intercept form its y>-6 + 2x/3. Graph the y intercept -6, then use rise/run and go up 2 points and then to the right 3 points. Then shade the upper right because it is a greater sign and make the lines dashed.
Step-by-step explanation: Hope this helps :)
Solve for x.
19)
20)
759
21x + 6
11-2
21)
22)
60°
r+139
8x-4
132
23)
24)
23r-5
12x + 17
21x+5
Answer:
x
2
+
2
x
−
3
=
0
x
2
−
3
x
=
0
3
x
2
−
15
x
=
0
Step-by-step explanation:
Brian earns $5 per hour babysitting. He makes a graph and plots what he
earns for different numbers of hours. He places the number of hours he
works on the x-axis and his earnings on the y-axis. What is the slope of the
line that Brian graphs?
Answer:
The slope of the line is 5
Step-by-step explanation:
When we talk of the slope of a straight line graph, we refer to the rate at which the values on the y-axis changes as a ratio of the changes we have on the x-axis
Now, from the question, number of hours is placed on x-axis, while we have the amounts on the y-axis
having $5 per hour means the rate of change of what is earned to number of hours worked is 5 and this is the slope of the line
will give brainliest
Answer:
x = 90 degrees, right triangle
Step-by-step explanation:
48 + 42 + x = 180
90 + x = 180
180 - 90 = x
x = 90 degrees
Multiply.
(2x2 – 3x + 1)(x2 - 4x - 3)
O A. 3x2 - 7x-2
O B. 2A - 11x3 + 7x2 + 5x - 3
O C. 2x4 + 12x2 – 3
O D. 244 - 4x2 + 12x-3
B. 2x^4-11x^3+7x^2+5x-3
What is the equation in point-slope form of the line that passes through (3,-2) with a slope 4?
Answer:
y + 2 = 4(x - 3)
Step-by-step explanation:
Answer: y+2= 4(x-3)
Step-by-step explanation:
The equation for point slope form is y-y1=m(x-x1) 3 is our x1 value and -2 is our y1 value as well as 4 being our m value when you plug the numbers into the equation you get a answer of y+2= 4(x-3)