Answer:
..
Step-by-step explanation:
Substitute x = -3 and y = -5 into the expression -7y² + 9x
Answer:
-202
Step-by-step explanation:
-7(-5)^2+9(-3)
-7*5^2-27
-7*25-27
-175-25
-202
-4/9 times (-2) its really hard and i just dont know the answer
6596
Find the gradients of lines A and B.
y
B
A
NO
4
3
2
1
-B-2-19
2 3 4 5 6 7 X
2
3
Answer:
formula
[tex]m = \frac{y2 - y1}{x2 - x1} [/tex]
Step-by-step explanation:
choose two point of A, let k(-2, -3) and l(1, 3)
[tex] m = \frac{ - 3 - 3}{ - 2 - 1} = \frac{ - 6}{ - 3} = \frac{1}{2} [/tex]
choose two point of B, let c(0, 5) and d(5, 0)
[tex]m = \frac{5 - 0}{0 - 5} = \frac{5}{ - 5} = - 1[/tex]
Hence the gradient of A is
[tex] \frac{1}{2} [/tex]
and B is -1
What is an equation in point-slope form of the line that passes through the point (1,−5) and (−5,−6)
HELPPPP
Answer:
y + 5 = ¹/₆(x - 1)Step-by-step explanation:
The slope of a line passing through two given points: [tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
(1, -5) ⇒ x₁ = 1 , y₁ = -5
(-5, -6) ⇒ x₂ = -5 , y₂ = -6
[tex]m=\dfrac{-6+5}{-5-1}=\dfrac{-1}{-6}=\dfrac16[/tex]
Point-slope form of equation of a line with givem slope m and passing through point (x₁, y₁): [tex]y-y_1=m(x-x_1)[/tex]
(1, -5) ⇒ x₁ = 1 , y₁ = -5
Therefore:
[tex]y-(-5)=\frac16(x-1)\\\\\underline{y+5=\frac16(x-1)}[/tex]
Write 360 as a product of prime factors.
Give your answer in index form.
Answer:
2³ × 3² × 5
Step-by-step explanation:
360 = 2 × 2 × 2 × 3 × 3 × 5 = 2³ × 3² × 5
simplify -5 ¼ - (-7 ½)
Answer:
2 1/4
Step-by-step explanation:
-5 1/4- (-7 1/2)
to minus cancel each other out so it becomes a plus
-5 1/4 + 7 1/2
common dinomanater
-5 1/4 + 7 2/4
2 1/4
ABC is a straight line.
А
B
С
The length of AB is four times the length of BC.
AC = 75 cm.
Work out the length of AB.
Answer:
Let length of bc be x cm
Thus, ab=4x
ab+bc=ac
4x+x=75
5x=75
x=75/5
x=15
Therefore, ab=x=15cm
bc=4x=60cm
Step-by-step explanation:
a circle is drawn through (3,2),(-1,-2) and (5,-4).find the:(a) coordinates of the centre of the circle,(b) radius of the circle,(c) equation of the circle,showing
working.
Answer:
Step-by-step explanation:
The distance from the centre to any point on the circle is called the 'radius'. ... (i) Find the centre and radius of the circle (x-2)2+(y + 5)2 =9. ... Find the equation of the circle which has the line segment from a(-4, 3) to b(2, 1) as diameter. ... b and c. 22. Find the equation of the circle with centre (1, 3) and having the line 3x + 4y ...
Given the following rectangle: Solve for x.
10x - 43
3x + 6
Answer:
x=9
Step-by-step explanation:
I basically just used the bottom left corner and since all of them are 90 degrees, i did 90-18 then i got 72 and i just divided it by 8 and got 9.
Hope this helps!
Answer:
The value of (x) is 19
Step-by-step explanation:
8x - 18 = 4x + 58
4x = 76
x = 19
I hope this is help :) "please tell me if that false"
Complete the following statement: |-13| __ -(-13)
Write an equation to express y in terms of x
x 10 20 30 40
y 6 16 26 36
Answer; I THINK IT Y x 16
Step-by-step explanation:
0.9(x-20)=830
What does x equal?
Answer:
x = [tex]942\frac{2}{9}[/tex]
Step-by-step explanation:
0.9 ( x - 20) = 830
0.9x - 18 = 830
0.9x = 848
9x = 8480
x = [tex]942\frac{2}{9}[/tex]
Find an equation in point-slope for the line having the slope m m = - 6 and containing the point (8,6)
Answer:
y-6 = -6(x-8)
Step-by-step explanation:
Here, we want to get the equation of the line in point-slope form
The point slope form is;
y-y1 = m(x-x1)
(x1,y1) represents the slope
We have this as ;
y-6 = -6(x-8)
Help. Answer this please!
Answer:
b
Step-by-step explanation:
hard to explain right here sorry man
An artist builds a sculpture out of metal and wood that weighs 14.4 kilograms. 3/4 of this weight is metal, and the rest is wood. How much does the wood part of the sculpture weigh?
Answer: weight of wood part = 3.6 kilogram.
Step-by-step explanation:
Sculpture made of both metal and wood = 14.4 kilogram
Weight of metal=3/4 of 14.4 kilogram
which means the weight of metal = 3/4 x 14.4kg= 10.8kg
Since the rest is wood, we can say that
weight of wood = Total weight - weight of metal
= 14.4 kilogram- 10.8 kilogram= 3.6 kilogram
Answer i think 3.6
Step-by-step explanation:
Find the interest on naira 40000.00 for 2 years at 20% per annum compound interest. Please I need the answer ASAP
Given:
Principal value = 40000
Rate of compounded interest = 20%
Time = 2 years
To find:
The interest.
Solution:
Formula for amount is
[tex]A=P\left(1+\dfrac{r}{100}\right)^t[/tex]
Where, P is principal, r is rate of interest and t is time in years.
Putting the given values, we get
[tex]A=40000\left(1+\dfrac{20}{100}\right)^2[/tex]
[tex]A=40000\left(1+\dfrac{1}{5}\right)^2[/tex]
[tex]A=40000\left(\dfrac{6}{5}\right)^2[/tex]
[tex]A=40000\left(\dfrac{36}{25}\right)[/tex]
[tex]A=57600[/tex]
Now, the formula for interest is
[tex]I=A-P[/tex]
[tex]I=57600-40000[/tex]
[tex]I=17600[/tex]
Therefore, the amount of compound interest is 17,600.
HELP PLEASE! DID I DO THAT RIGHT?!
Answer:
I think it is right, yes i think it is.
Step-by-step explanation:
A 1.5 m tall woman stands next to the Eiffel Tower. At this time of day, her shadow is 0.5 m long. At the same time, the tower's shadow is 90 m
long. How tall is the Eiffel Tower? Show your work.
What is the measure of the missing angle?
25°
60°
85°
35°
Answer:
60
Step-by-step explanation:
Will and Ben win £1000 in a raffle
they give a fifth of it to charity and share what's left in the ratio 1:3.
How much is bens share
Answer:
600
Step-by-step explanation:
Answer:
£600
Step-by-step explanation:
1/5 of 1000= £200
that means £800 is left over
1:3= 200:600
ben gets £600, will gets £200
please help
A flower bed is in the shape of a triangle, with a base of 15 feet and a height of 9 feet. What is the area of the flower bed?
24 square feet
32.5 square feet
67.5 square feet
135 square feet
Answer:
Option c - 67.5
Step-by-step explanation:
Base= 15
Height = 9
Area= 1/2 x b h = 1/2 x 9 x 15 = 67.5 feet
What’s the answer help pls
Answer:
7,715
Step-by-step explanation:
that the answer
if pick I pick the first one
Answer:
total cost 4125+3600 = 7725
2nd 275n + 300n
Step-by-step explanation:
(275*15) + (12*300)
In what group of 120 seventh graders, 30% have completed their science project. how many students have completed their science project?
Answer:
36
Step-by-step explanation:
30% of 120 is 120 x 0.3
120 x 0.3 =36.
Janet's car insurance payment decreases by $30 each year. Which expressions represent the total change in her payment, in dollars, after 4 years?
Answer:
The change after five years is equal to -$100
Step-by-step explanation:
If the insurance payment is equal to P = N dollars, where P is a real number, we know that after one year, the payment decreaces by $20, so the new payment is:
P = N - $20
Then, after 5 years, the $20 dollars are discounted five times, so the payment will be:
P = N -5*$20 = N - $100
Then the total change after 5 years is equal to those $100 that are being subtracted in the last equation.
WHAT??? HELP ME PLEASE///8TH GRADE MATH
Answer:
put angel sum property on it
Step-by-step explanation:
39 + 73 + x = 180
112 + x = 180
x = 180 - 112
x = 68
put degree sign over it
Hope its help you
ANSWER THIS PLZZZZZZ!!!!!
Answer:
b
Step-by-step explanation:
Answer:
you were right, the answer is
D) the time spend reading book and the number of pages remaining to be read in the book.
Identify the slope and the y-intercept
y = 4x-7
Step-by-step explanation:
y = 4x - 7
Comparing the given equation with y = mx + c Then
slope (m) = 4
y -intercept (c) = - 7
Hope it will help :)
Answer: the slope is negative 4
Step-by-step explanation:
because its ez
. 238/x = 17
HELP OMG HELP!!!!
Answer:
Step-by-step explanation:
Answer:x = 14
My Step-by-step explanation:
Turn the problem around by switching around the division:
238/x=17 means 238/17=x so x = 14.
Please
Explain, in detail, the steps on how to factor the following trinomial: 3x^2 + 5x + 2
Answer:
Step-by-step explanation:
Hope this helps
A line passes through the points (-6, 4) and (-2, 2). Which is the equation of the line?
O y=-3x+1
O y=zx+7
y=-2x - 8
y = 2x + 16
Answer:
y = 2x + 16
Step-by-step explanation: