Answer:
x=5/4 + 5b/4
b= -1+ 4x/5
The other one is 12x^2
Step-by-step explanation:
i asked my online computer tutoring app thingy
Answer:
1) x=-0.5 and x=-3.41
2) 12x^2
Step-by-step explanation:
a) 7-x^2=4x-5
7-x^2-4x+5=0
-x^2-4x-2=0
Multiply by -1
x^2+4x+2=0
Solve using quadratic formula [tex]$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$[/tex]
we have a=1, b=4, c=2
Putting values to find x
[tex]x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{-(4)\pm\sqrt{(4)^2-4(1)(2)}}{2(1)}\\x=\frac{-4\pm\sqrt{16-8}}{2}\\x=\frac{-4\pm\sqrt{8}}{2}\\x=\frac{-4+\sqrt{8}}{2} \ and \ x=\frac{-4-\sqrt{8}}{2}\\x=-0.5 \ and \ x=-3.41[/tex]
So, x=-0.5 and x=-3.41
b) Simplify
[tex]3x(x+6)-3x(6-3x)[/tex]
[tex]3x(x+6)-3x(6-3x)\\=3x^2+18x-18x+9x^2\\=3x^2+9x^2\\=12x^2[/tex]
find reciprocal of 3/2 x 9/7
Answer:
[tex]\frac{14}{27}[/tex]
Step-by-step explanation:
[tex]\frac{3}{2}[/tex]×[tex]\frac{9}{7}[/tex] = [tex]\frac{27}{14}[/tex]
Reciprocal of [tex]\frac{27}{14}[/tex] = [tex]\frac{14}{27}[/tex]
For finding reciprocals of fractions, simply flip the numerators and denominators.
Answer:
14/27
Step-by-step explanation:
[tex](3 \div 2 \times 9 \div 7 )\\ 27 \div 14 \\ reciprocal = 14 \div 27[/tex]
Please mark as brainliest.
Find the greatest common factor (GCF) for each number set. 56,63
1. 1
2. 6
3. 7
Suppose you are constructing a LEGO Technic Land Rover Defender with a total of 2573 pieces. You have already put together 253 pieces. Every minute you add 5 more pieces. Is the relationship linear? How do you know?
Answer: Yes it is
Step-by-step explanation:
A linear relationship simply put, is a relationship between variables that when constructed, forms a straight line. This happens when y changes at a constant rate if x changes by a constant rate as well for instance, 1.
From this question, assume x is minutes and y is the total number of pieces put together. This means that every time x (minutes) increases by 1, y increases by 5 pieces.
The formula would look like this;
y = 5x + 253
This is a formula for a straight line so indeed, this relationship is linear.
Find the solution for this system of equations:
y = -6x - 8
y = 46
O A) (24, -36)
OB) (36,-5)
OC) (46, -7)
OD) (-9. 46)
9. Matt bought a new crate for his dog. The old crate was 8 square feet, and the new crate was 12 square feet. What is the percent increase in the space?
Solution:
It is given that :
Area of old crate = 8 square feet
Area of the new crate = 12 square feet
Therefore difference in the area = 12 - 8
= 4 square feet
Now the percentage increase in the area of the crate is given by :
[tex]$=\frac{\text{difference in the area of crate}}{\text{original area of crate}} \times 100$[/tex]
[tex]$=\frac{4}{8} \times 100$[/tex]
= 50%
So the percentage increase in space is 50%
On a map, the coordinates (2,-1) and (4,8) pass through the coordinates (1,3) and (6,2). Are they perpendicular
Answer:
Step-by-step explanation:
2. Convert 25.2625° from decimal degrees to degrees-minutes-seconds.
Answer:15
Step-by-step explanation:
Find the equation of the line that passes through points A and B
What is 569 divided by 67.8
Answer: 8.39233038348
Step-by-step explanation:
Answer:
8.39233038348
Step-by-step explanation:
569/67.8=8.39233038348
The solution of the equation is x= .
Answer:
[tex]x=1[/tex]
Step-by-step explanation:
Step 1: Cross-Multiply
What cross multiply basically means is that you take both sides of the equation and you multiply my the opposite sides. So you take the top of the left fraction and multiply it by the bottom of the right fraction. You then have an equal sign and then have the bottom of the left fraction multiplied by the top of the right fraction.
[tex]\frac{2}{7}=\frac{6x}{4x+17}[/tex]
[tex]2(4x+17)=7(6x)[/tex]
Step 2: Distribute
[tex]2(4x+17)=7(6x)[/tex]
[tex](2*4x)+(2*17)=(7*6x)[/tex]
[tex]8x+34=42x[/tex]
Step 3: Subtract 8x from both sides
[tex]8x + 34- 8x = 42x - 8x[/tex]
[tex]34=34x[/tex]
Step 4: Divide both sides by 34
[tex]34/34 = 34x/34[/tex]
[tex]1=x[/tex]
Answer: [tex]x=1[/tex]
Pls answer 4 and 5 for brainly
Number 4 would be: C
And number 5 would be: C
Please Mark as Brainliest!!!
Answer:
Number 4 is c 1/6 and number 5 is also c
Step-by-step explanation:
I just divided 1 and 6 and got 0.1666
and did the same for the other one
pls mark brainliest
What is the domain and range please?
Answer:
The domain of a function f(x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes. (In grammar school, you probably called the domain the replacement set and the range the solution set.
Convert 0.067 km to mm
Answer:
67000
Step-by-step explanation:
just multiply by 1000000
6/5 divded by (-3/2)
Answer:
Step-by-step explanation:
6/5 ÷ -3/2 = 6/5 x -2/3
-12/15 = - 0.08
Answer:
− 4/5 or −0.8
Step-by-step explanation:
What is the value of x?
Answer:
111
Step-by-step explanation:
You know the angle missing in the triangle is 69 (180-75-36). The angle on a line is 180. So 180-69=111.
OR
Add the two given angles to get 111 as 75+36+(180-x)=180 so if you subract (180-x) it leaves 75+36.
For a science class, David recorded the daily high temperatures for five days. His calculations showed that the mean and median temperatures for the five days were the same. Which set of data supports David's calculation?
1. (42°, 40°, 44°, 39°, 45°)
2. (42°, 39°, 38°, 44°, 46°)
3. (42°, 39°, 38°, 45°, 47°)
Plz can someone help me show work for these two problems!!
3x + y = 13
2x - y = -1
Answer:
3x +y = 13
Or, x=13-y/3......eqn(i)
Now putting the value of x
2x - y = - 1
Or, 2(13-y/3) - y = - 1
Or, 26 - 2y /3 - y = -1
Or, 26 - 2y - 3y = - 3
Or, 26 - 5y = - 3
Or, - 5y = - 3 - 26
Or,y = - 39/ (- 5)
Or, y = 7.8~
PRESSSSSSSSSSS CTRL W
:D
Answer:lol
Step-by-step explanation:
can someone please please help me? with a reasoning? :(
Answer:
a) 3x + y = -5 & b) y = 1/3 ( 21- 9x )
Step-by-step explanation:
a)
3x + y = -5
y = -3x -5
b)
y = 1/3 ( 21 - 9x)
y = -3x + 7
y = 3x + 2.5
the slop is to be same in the parallel lines. slop means m in ( y = mx + c )
so a) & b) are parallel lines. since their m is -3 .
1)
Which number is NOT in the solution set of x + 8 > 15?
A)
6
B)
8
C)
10
D)
12
Answer:
A) 6
Step-by-step explanation:
x + 8 > 15
x > 15 - 8
x > 7
8, 10, and 12 are all greater than 7. 6 is NOT
Answer: is A because 6+8=14 when the rest of the choices are bigger then 15
what is the solution to this??
4x + 12x =320
then using the solution to this do _x=_
Answer:
x=20
Step-by-step explanation:
Add like terms:
4x + 12x = 16x
16x = 320
320/16 = 20
Point B on the graph represents which phase of the business cycle?
A. Peak
B. Contraction
C. Trough
D. Expansion
Answer: trough
Step-by-step explanation: the study says this
Answer:
trough
Step-by-step explanation:
^
A large basket of fruit contains 3 oranges, 2 apples and 5 bananas. If a piece of fruit is chosen
at random, what is the probability of getting an orange or a banana?
Answer:
8/10
Step-by-step explanation:
3+2+5=10 options in total. 3 oranges and 5 bananas means 3+5=8 --> 8/10 chance of picking an orange or banana
Which of the following is equivalent to 5x − 6y = 8?
A. y = -5/6x
B. y = 6/5x + 2
C. y = 5/6x - 4/3
D. y = 8/11x
Answer:
b
Step-by-step explanation:
Work out the length x.
Х
7.5 cm
16 cm
Answer:
x = 17.7
Step-by-step explanation:
[tex]a^{2} + b^{2} = c^{2}[/tex]
[tex]7.5^{2} + 16^{2} = x^{2}[/tex]
[tex]56.25 + 256 = x^{2}[/tex]
[tex]312.25 = x^{2}[/tex]
[tex]\sqrt{312.25} = x[/tex]
[tex]17.7 = x[/tex]
please help me!
Decrease £40 by 10%
Answer:
36
Step-by-step explanation:
40 * .10 = 4
40-4 = 36
(a) (sin A + sin B) (sin A-sin B)
Answer:
Sin^2A-sin^2B
Step-by-step explanation:
(sin A + sin B) (sin A-sin B)
=SinA(sinA-sinB)+SinB(sinA-sinB)
=Sin^2A-sinAsinB+sinBSinA-sin^2B
=Sin^2A-sin^2B
please help. i am desperate. will mark brainliest if work is shown. please.
Use your calculator to find the smallest solution to -5e^(-4x+2)+3=1/2log(x^2+1) and describe the steps you used. Round your answer to three decimals.
please dont count on me but 0.23856062736
Which expression represents the total number of pages Saul has read, where W represents the number of the weeks since he first started reading
Answer:
Y = 50 + 65w
Step-by-step explanation:
Find the equation if the line shown
Answer:
y=1/2x+9
Step-by-step explanation: