Steps to solve:
7 + (3x^2)
~Substitute
7 + 3(0)^2
~Simplify
7 + 3(0)
~Simplify
7 + 0
~Add
7
Best of Luck!
Factorise :
[tex] \sf{ {x}^{2} - 4x - 21 + 10y - {y}^{2} }[/tex]
Show workings too!
Answer:
(x - y + 3)(x + y - 7)
Step-by-step explanation:
x^2 - 4x - 21 + 10y - y^2
= x^2 - y^2 - 4x -21 + 10y
= (x - y)(x + y) - 4x + 10y - 21 Now -21 = + 3 * -7 and +3x - 7x =- 4x so we try:
= (x - y + 3)(x + y - 7)
- this expands to the original expression.
Answer:
(x+y-7)(x-y+3) is your answer
Step-by-step explanation:
x²-4x-21+10y-y²
x²-4x+2²-2²-21+10y-y²
(x-2)²-(y2-10y+25)
(x-2)²-(y-5)²
(x-2+y-5)+x-2-y+5)
(x+y-7)(x-y+3)
Does it make sense to represent the number 15.3 using scientific notation yes or no?
Answer:
Not really. No.
Step-by-step explanation:
15.3 in scientific notation would be represented as "1.53e+1." 15.3 isn't a very large or tiny number. Usually numbers that would be represented by scientific notation would be numbers such as "600,000,000" or "0.00000012" etc. 15.3 is just a standard decimal so it's not really practical.
Hope this helps and have a nice day!
Two planes intersect in exactly _____. one plane, two lines, one point, one line, thank you
Answer:
one line
two planes intersect in one line
Please help I’m not getting the right answer
Answer:
its c
Step-by-step explanation:
Can someone help me please?
Answer:
X-16 the first one
Step-by-step explanation:
The first one is equal to x-4
0.00035
Write each number in scientific notation.
Step-by-step explanation:
For example, in order to multiply 832,000 by 0.00035, one converts first to scientific notation as follows: (832,000)×(0.00035)=(8.32×10 5)×(3.5×10 −4)=8.32×3.5×10 5×10 −4=29.12×10 1=2.912×10 2 (in scientific notation) or 291.2 (in ordinary notation).
Answer:
0.00035 = 3.5 × 10 to the -4
Hope it helps :)
15-10 *
Adding and subtracting intergers
Move theses numbers (0.1, 8/7, -1, 2/3, 0.05 )to the blanks to order them from least to greatest value.
Answer:
-1, 0.05, 0.1, 2/3, 8/7
Step-by-step explanation:
Answer:
[See Below]
Step-by-step explanation:
✦ First turn every number into a decimal that can be turned into a decimal:
✧ 0.1
✧ 1.14 (8/7)
✧ -1 (Can't be turned into a decimal)
✧ 0.66 (2/3)
✧ 0.05
✦ Now just order them from Least to Greatest:
✧ -1, 0.05, 0.1, 0.66, 1.14
~Hope this helps Mate. If you need anything feel free to message me.
13x + 4 + 10x - 1 = 141
Answer:
x=6
Step-by-step explanation:
Answer:
Step-by-step explanation:
13x + 10x + 3 = 141
23x + 3 = 141
23x = 138
x = 6
Cual es la de Raiz de 2000
2000 | 2
1000 | 2
500 | 2
250 | 2
125 | 5
25 | 5
5 | 5
1
√2000 = √2².√2².√5².√5
√2000 = 2.2.5√5
√2000 = 20√5
(aproximadamente 44.72135955)
Can someone please answer this ? * will mark as brainiest *
Answer:
pq= 12 cm
Step-by-step explanation:
I believe PQ would be 12 cm.
solve 3(2d-1)-2d=4(d-2)+5
Answer:
Any value of D would make this equation true (-∞,∞)
Answer:
infinitely many solutions
Step-by-step explanation:
i ready
x²-x-2(area)
x + 1(base)
The triangle above has an area of x2-x-2 and a
base of x + 1. What is the height of the triangle?
area of triangle formula = ½ × Base × Height
X² - X - 2 = ½ × ( X + 1) × Height
X² - X - 2 = (0.5X + 0.5)Height
Therefore,
Height = ( X² - X - 2 ) / ( 0.5X + 0.5 )
estimate the value of √13. round to the hundredths.
[tex]\sqrt{13}[/tex] = 3.60555127546
rounded to the nearest hundredth:
3.61
If a Ferrari, with an initial velocity of 10 m/s, accelerates to a rate of 160 m/s/s for 3 seconds,
what is its acceleration?
Answer:
The acceleration is 160 m/s/s
Step-by-step explanation:
The unit m/s/s tells you that the car is accelerating at a rate of 160 m/s/s.
wat is 33 square roots on a number line where dose it stand by.
Answer:
1089
Step-by-step explanation:
2u^2 + v when u=3 and v=7
Answer: 25
Step-by-step explanation:
There are two variables which is u and v and is given that u is 3 and v is 7 so input that into the expression and solve.
2(3)^2 + 7 Solve the exponent first
2(9) + 7 Now multiply then add
18 + 7 = 25
JL = 28,
KL= 5x + 6, and
JK = 3x + 6,
Answer:
KL = 16
Step-by-step explanation:
For this problem, JL is the sum of KL and JK. So we can say this:
JK + KL = JL
( 3x + 6 ) + ( 5x + 6 ) = 28
8x + 12 = 28
8x = 16
x = 2
So, now we can find KL:
5x + 6 = ?
5(2) + 6 = ?
10 + 6 = ?
16 = ?
So the length of KL is 16.
Cheers.
Simplify 7(x + 3). 7x + 3 7x + 10 7x + 21 x + 21
Answer: 7x+21
HOPE THIS HELPS :>
Step-by-step explanation:
For what value of x is line a parallel to line b?
Answer:
22.
Step-by-step explanation:
If lines A and B are parallel to each other, then 4x + 28 = 116.
4x + 28 = 116
4x = 88
x = 22.
solve for b 30b+53≥18b−83
Answer:
Step-by-step explanation:
30b + 53 ≥ 18b - 83
30b - 18b ≥ -83 - 53
12b ≥ -136
b ≥ - [tex]\frac{136}{12}[/tex]
some one pls help ASAP I’m begging. (Please show work, just number 7.)
Isolate the variable with algebraic manipulation.
[tex]V=\frac{1}{3}\pi r^2h[/tex]
[tex]3V=\pi r^2h[/tex]
[tex]\frac{3V}{\pi r^2}=h[/tex]
Hope this helps.
頑張って!
A number cube is tossed 8 times. What is the probability that the cube never lands on 3?
O A 6.0%
e.
B. 10.4%
O C. 16.7%
e
D. 23.3%
Answer:
[tex]Probability = 23.3\%[/tex]
Step-by-step explanation:
Given
Number cube
Toss = 8
Required
Probability of not landing on 3
First we need to get the probability of landing on 3 in a single toss;
For a number cube;
[tex]n(3) = 1[/tex] and [tex]n(Total) = 6[/tex]
So; the probability is
[tex]P(3) = \frac{1}{6}[/tex]
First we need to get the probability of not landing on 3 in a single toss;
Opposite probability = 1;
So:
[tex]P(3) + P(3') = 1[/tex]
Make P(3') the subject of formula:
[tex]P(3') = 1 - P(3)[/tex]
[tex]P(3') = 1 - \frac{1}{6}[/tex]
[tex]P(3') = \frac{5}{6}[/tex]
In 8 toss, the required probability is
[tex]Probability = (P(3'))^8[/tex]
This gives
[tex]Probability = (\frac{5}{6})^8[/tex]
[tex]Probability = \frac{390625}{1679616}[/tex]
[tex]Probability = 0.23256803936[/tex]
Convert to percentage
[tex]Probability = 23.256803936\%[/tex]
Approximate to 1 decimal place:
[tex]Probability = 23.3\%[/tex]
I need help finding the answer for this question, What is 5x+10=30
Answer:
x = 4
Step-by-step explanation:
Well, move the 10 over to the 30. The 10 is positive, so you subtract.
5x = 20
Now Divide!
5x/5 = 1x or x
20/5 = 4
So,
x = 4
Given that sin(90 -5ϴ) = Cos(180 - ϴ), Find the value of ϴ
Answer:
30°
Step-by-step explanation:
[tex] \because \: \sin(90 \degree - \theta) = \cos \theta \\ \therefore \: \sin(90 \degree - 5 \theta) = \cos 5\theta....(1) \\ \\ \sin(90 \degree - 5 \theta) = \cos(180 \degree - \theta)...(2) \\ from \: (1) \: and \: (2) \\ \cos 5\theta = \cos(180 \degree - \theta) \\ 5 \theta = 180 \degree - \theta \\ 5 \theta + \theta= 180 \degree \\ 6\theta= 180 \degree \\ \theta = \frac{180 \degree}{6} \\ \\ \huge \red{ \boxed{\theta = 30 \degree}}[/tex]
Solve the equation for the specified variable.
S = BC-9, for B
B =
Algebra 1 btw
Please help I've been stuck on this for a while
Answer:
x=5,y=2,z=-1
Step-by-step explanation:
x+y+z=6 ........1
2x-y+3z=5 ..........2
3x+2z=13 ⇒3x=13+2z ⇒ x=(13-2z)/3
substitute for x in equation 1 and 2
13-2z/3+y+z=6 ⇒13/3 -2z/3+y+z=6 ⇒z/3+y=6-13/3
z/3+y=5/3 first equation2(13-2z)/3-y+3z=5
26/3-4z/3-y+3z=5⇒5z/3-y=5-26/3⇒
5z/3-y=-11/3 second equationz/3+y=5/3 first equationeliminate y5z/3-y+z/3+y=-11/3+5/3
6z/3=-6/3
z=-1x=(13-2z)/3 ( find x, bu substitute z=-1)x=(13+2)/3
x=15/3 ⇒ x=5x+y+z=65+y-1=6
y=6+1-5
y=2Pleease help me please im giving good points i thin
Answer:
Step-by-step explanation:
greatest to least
1. 7.81 x 10^1
2. √(61)
3. ∛(343)
4. .78
5. 7/9
6. 8%
A triangle has a perimeter of 77 centimeters. Each of the two longer sides of the triangle is three times as long as the shortest side. Find the length of each side of the triangle
Answer:
a = 33cm
b = 33cm
c = 11cm
Step-by-step explanation:
Let us say that the sides of the triangle are a, b and c
The perimeter of a triangle can be calculated by adding all three sides of the triangle.
Perimeter = a + b + c
Let side c be the shortest side of the triangle.
From the statement "Each of the two longer sides of the triangle is three times as long as the shortest side" we can have that
a = 3c and b = 3c
We can input these values into the perimeter of the triangle
Perimeter = 3c + 3c + c = 77
Perimeter = 7c = 77
c = 11
The shortest side, c is = 11 cm
side a is 3 X 11 = 33cm
side b = 3 X 11 = 33 cm
what sequence of transformations on the red triangle will map it onto the missing portion of the square
Answer:
Answer is C.) a 90° counterclockwise rotation about the origin and then a translation 16 units right and 16 units up
Step-by-step explanation:
Rotating the triangle 90° counterclockwise will take the triangle to 3rd quadrant and then further moving it 16 steps right will take it to 4th quadrant and followed by 16 steps upward will take it to the desired position which is in 1st quadrant.