Answer:
a= 6+9=15
p=-30+20= -10
m=15-12=3
X= -10-7= -17
The subtraction equation can be written as addition equations as follows:
a − 9 = 6 ⇒ a + (-9) = 6
p − 20 = -30 ⇒ p + 30 = 20
m − ( -12) = 15 ⇒ m + 12 = 15
x − ( -7) = -10 ⇒ x + 7 = -10
What are equations?Mathematically, an equation can be defined as a statement that supports the equality of two expressions, which are connected by the equals sign “=”. For example, 2x – 5 = 13.
Here,
2x – 5 and 13 are expressions
The sign that connects these two expressions is “=”.
Given equations:
1. a - 9 = 6
Equation can be written as
⇒ a + (-9) = 6
2. p − 20= -30
interchanging the constant values from LHS to RHS.
⇒ p + 30 = 20
3. m - (-12) = 15
Determining the sign
⇒ m + 12 = 15
4. x − ( -7)= -10
Determining the sign
⇒ x + 7 = -10
Hence, a + (-9) = 6, p + 30 = 20, m + 12 = 15 and x + 7 = -10 are the addition forms of subtraction equations a − 9=6, p − 20= -30, m −( -12)=15
and x − ( -7)= -10 respectively.
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can someone please answer this for me
Answer:
BC = 1.7
Step-by-step explanation:
Since, cosine of any angle (except right angle) represents the ratio of base length and hypotenuse.
Cosθ = [tex]\frac{\text{Base}}{\text{Hypotenuse}}[/tex]
From the given right triangle ΔACB,
[tex]\text{Cos}(\angle B) = \frac{\text{Base}}{\text{Hypotenuse}}[/tex]
[tex]=\frac{BC}{AB}[/tex]
Cos(70°) [tex]=\frac{BC}{5}[/tex]
BC = 5Cos(70°)
= 1.71
≈ 1.7
You have found the ages (in years) of 5 gorillas. Those gorillas were randomly selected from the 29 gorillas at your local zoo: 8,4,14,16,18
Answer:
8
Step-by-step explanation:
(a) Find the p - value for the test statistic =1.34
z=1.34 for the following null and alternative hypotheses:
0:=50
HA:μ>50
The p - value is
Look at a z table and look up z = 1.34.
The number associated with z = 1.34 is 0.9099
The p value is that value subtracted from 1.
P value = 1 − 0.9099 = 0. 0901
The p - value for the test statistic should be considered as the 0.0901.
Calculation of the p-value:Since there is null and alternative hypotheses
so here we look at the z table and then the value should be 1.34
So, the value of z in 1.34 should be 0.9099
So, here the p-value should be
= 1 - 0.9099
= 0.0901
hence, The p - value for the test statistic should be considered as the 0.0901.
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what are you favorite books??
and which do you recommend
Answer:
I recommend the book confessions by James patterson
Step-by-step explanation:
it's a really great book here's the description;
she can't trust anyone.
maybe not even herself.
Tandy Angel is a whip smart teenager, a magnificently wealthy heiress who was possibly the last person to see her parents alive. is she also a murder?
Harrison angel is her artistic twin brother and a concert pianist but was always a disappointment to their parents. is he also a murder?
Hugo angel is their ten year old sibling, a little boy with uncanny strength... and their parents pushed him as hard as the rest of them. is he also a murder?
Matthew angel is their famous older brother, an all American Football star who has more than one very good reason to hate his parents. is he also a murder?
Evaluate. Write your answer as a fractionin simplest form.
216−(−83)+(−479)=
What is the exact value of cot pi/3?
The exact value of the given trigonometric function cot(π/3) is √3/3.
What is the cotangent (cot)?The cotangent (cot) of an angle is defined as the ratio of the adjacent side to the opposite side of a right triangle.
Here, given that an angle of π/3, which is not a right angle.
So, we need to use the trigonometric identities to find the value of cot(π/3).
cot(θ) = 1/tan(θ)
where θ is an angle in radians.
We know that the tangent of π/3 is √3, as this is the opposite side (which is the same as the sine) divided by the adjacent side (which is the same as the cosine) of a 30-60-90 right triangle.
So, cot(π/3) can be expressed as:
cot(π/3) = 1/tan(π/3)
= 1/√3
Multiplying the numerator and denominator by √3/√3, we get:
cot(π/3) = √3/3
Therefore, the exact value of cot(π/3) is √3/3.
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Number of Customers
The scatter plot shows the relationship between the average
number of nightly customers and the number of months since a
restaurant opened. The equation represents the linear model for
this data
300
270-
240-
y = 5x + 120
210-
180
What does the number 5 in the equation mean in this context?
Average nightly customers
150
O The restaurant has been open for 5 months
.
120
The average number of customers per night
increased by 5 each month
90
60
There were 5 customers per night when the
restaurant opened
30
O
There were 5 customers per month after the
restaurant was open 120 months.
8
9
10
Time (months)
For every 5 months the restaurant has been open,
there are 120 more customers per night
Answer:
The average number of customers per night increased by 5 each month.
Step-by-step explanation:
hope this helps! :)
Suppose x^2+ y^3 = 2. Find dy /dx
dy/dx=2x/3y^2
Differient each term with respect to x, then solve for y.
25 POINTS AND WILL MARK BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!
Suppose a lab needs to make 400 liters of a 39% acid solution, but the only solutions available to the lab are 20% acid and 50% acid. What system of equations can be used to find the number of liters of each solution that should be mixed to make the 39% solution? Let c represent the number of liters of 20% acid solution and let d represent the number of liters of 50% acid solution.
Answer:
the first one correct the one in the above i agree with her/him
Add (2m^2n + 5mn^2 - 7mn) ; (2m^2n - mn^2 + mn
Answer:
Step-by-step explanation:
(3m+2n)/(m-n2)+(5m+n)/(n-m2)-(2m-3n)/(m2-n)
Final result :
-3m3 - 2m2n + 7m2 - 7mn2 + mn + 2n3 + 2n2
—————————————————————————————————————————
(m - n2) • (n - m2)
Step by step solution :
Step 1 :
2m - 3n
Simplify ———————
m2 - n
Trying to factor as a Difference of Squares :
1.1 Factoring: m2 - n
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : m2 is the square of m1
Check : n1 is not a square !!
Ruling : Binomial can not be factored as the difference of two perfect squares
Equation at the end of step 1 :
(3m+2n) (5m+n) (2m-3n)
(————————+————————)-———————
(m-(n2)) (n-(m2)) m2-n
Step 2 :
5m + n
Simplify ——————
n - m2
Trying to factor as a Difference of Squares :
2.1 Factoring: n - m2
Check : n1 is not a square !!
Ruling : Binomial can not be factored as the difference of two perfect squares
Equation at the end of step 2 :
(3m+2n) (5m+n) (2m-3n)
(————————+——————)-———————
(m-(n2)) n-m2 m2-n
Step 3 :
3m + 2n
Simplify ———————
m - n2
Trying to factor as a Difference of Squares :
3.1 Factoring: m - n2
Check : m1 is not a square !!
Ruling : Binomial can not be factored as the difference of two perfect squares
Equation at the end of step 3 :
(3m + 2n) (5m + n) (2m - 3n)
(————————— + ————————) - —————————
m - n2 n - m2 m2 - n
Step 4 :
Calculating the Least Common Multiple :
4.1 Find the Least Common Multiple
The left denominator is : m-n2
The right denominator is : n-m2
Number of times each Algebraic Factor
appears in the factorization of:
Algebraic
Factor Left
Denominator Right
Denominator L.C.M = Max
{Left,Right}
m-n2 1 0 1
n-m2 0 1 1
Least Common Multiple:
(m-n2) • (n-m2)
Calculating Multipliers :
4.2 Calculate multipliers for the two fractions
Denote the Least Common Multiple by L.C.M
Denote the Left Multiplier by Left_M
Denote the Right Multiplier by Right_M
Denote the Left Deniminator by L_Deno
Denote the Right Multiplier by R_Deno
Left_M = L.C.M / L_Deno = n-m2
Right_M = L.C.M / R_Deno = m-n2
please help this is due soon i’ll mark brainliest if your correct
The answer fam is ........ QR = sqrt3 × PR
QR = sqrt3/2 × PQ
PQ = 2 × PR
For each equation, tell whether it is always true, sometimes true, or never
true.
Answer:
never
Step-by-step explanation:
5x-1= 9
+1 +1
5x/5=10/5
x=2
EDGE PRECAL 2020
Select the place in which an error first occurs in the proof of Sine (StartFraction t Over 2 EndFraction).
Statement 1
Statement 2
Justification 1
Justification 3
Answer:
Step-by-step explanation:
Answer:
Statement 2
Step-by-step explanation:
help me solve:
xc-r-d, for x
Answer:
lol you cant
Step-by-step explanation:
Find the measures of the sides of DEF then classify by its sides D(-2,3), E(5,5), F(-4,10)
Answer:
[tex] DE = 7.3 [/tex]
[tex] EF = 10.3 [/tex]
[tex] FD = 7.3 [/tex]
∆DEF is an isosceles ∆
Step-by-step explanation:
To find the 3 side lengths of ∆DEF, use the distance formula, which is given as [tex] d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} [/tex].
Distance between D(-2, 3) and E(5, 5):
[tex] DE = \sqrt{(5 -(-2))^2 + (5 - 3)^2} [/tex]
[tex] DE = \sqrt{(7)^2 + (2)^2} [/tex]
[tex] DE = \sqrt{49 + 4} [/tex]
[tex] DE = \sqrt{53} [/tex]
[tex] DE = 7.3 [/tex] (nearest tenth)
Distance between E(5, 5) and F(-4, 10):
[tex] EF = \sqrt{(-4 - 5)^2 + (10 - 5)^2} [/tex]
[tex] EF = \sqrt{(-9)^2 + (5)^2} [/tex]
[tex] EF = \sqrt{81 + 25} [/tex]
[tex] EF = \sqrt{106} [/tex]
[tex] EF = 10.3 [/tex] (nearest tenth)
Distance between F(-4, 10) and D(-2, 3):
[tex] FD = \sqrt{(-2 -(-4))^2 + (3 - 10)^2} [/tex]
[tex] FD = \sqrt{(2)^2 + (-7)^2} [/tex]
[tex] FD = \sqrt{4 + 49} [/tex]
[tex] FD = \sqrt{53} [/tex]
[tex] FD = 7.3 [/tex] (nearest tenth)
∆DEF has two equal sides, DE and FD. Therefore, ∆DEF can be classified as an isosceles triangle.
Hi BRANDON, when you submit this form the owner will be able to see your name and email address.
* Required
1
Baseball - Part A
Rodney played in a baseball tournament.
During the first game, Rodney attempted to hit the ball 6 times, but only hit the ball 4 times.
During the second game. Rodney attempted to hit the ball 2 more times than the first game,
and hit the ball a total of 4 times.
In the first game, what is the ratio of Rodney's actual hits to Rodney's attempts to hit the ball?
(1 Point)
Answer:
8:8 or 1:1
Step-by-step explanation:
You need to add 6 and 2 together because those are the two numbers of times Rodney attempted to hit the ball. You should get 8. You also, need to add 4 and 4 together because those are the times Rodney actually hit the ball. You should also get 8. To get the ratio you need to compare the two outcomes and put them into this format: 8:8. But since they're both the same number, that means you can simplify it. Just divide them both by 8 to get 1:1. I hope this helps, Brandon!
Which levels need to be correct for cells to function? Select four options.
blood sugar
body height
body water
body temperature
blood oxy
Answer:
a c d b
Step-by-step explanation:
How many solutions for x does the following equation have?
Find each percent of change. Round to the nearest whole percent if necessary. State whether the percent of change is an increase or descrease.
1. Zach boought a pair of jeans for $54. The next week he noticed that the price for the same pair of jeans was now $74. Find the percent of change
2. 40 to 25
3. 120 to 140
Answer:
>
Step-by-step explanation:
Each big square below represents one whole.
-
What percent is represented by the shaded area?
%
The Answer Is most likely 191% but the proper percent is 95.5%
if angle 3 and angle 4 are corresponding angles, then their vertical angles are also corresponding angles
always sometimes or never
Explanation:
Drawing out a diagram usually helps with these types of problem. See the diagram below.
We have angle 3 and angle 4 as corresponding angles (since they are both in the north east corner of each four-corner configuration). Angle 1 = angle 3 is one pair of vertical angles and angle 2 = angle 4 is another pair of vertical angles. We see that angles 1 and 2 are corresponding angles in the south west corners of each four-corner configuration. That's why the original statement is always true.
What’s the name of these mathematical symbols:
1)5X+3
2)5X+8=13
NEED THESE ASAP
Answer:
he first is a numerical sentence and the second is an equation
Step-by-step explanation:
equation because there's "="
Question 7
Water fills a crack in a rock. The temperature drops below freezing. What is likely to happen?
A
The water in the crack will evaporate.
B
The water will freeze and the crack in the rock will expand.
с
The water will freeze and the crack will stay the same
D
The water in the crack will protect the rock from further cracks
The function g(x)= 12,500(0.91)x represents the value of a piece of farm equipment after x years
Giving brain thing
TRUE OR FALSE: When working with y=mx+b, m stands for the slope and b 1 poir
stands for the y-intercept.
O True
False
Answer:
True
Step-by-step explanation:
y= mx + b
y= slopex + y intercept
slope would be the rise and run with x, then you'd add the y intercept
ex: y= 3x + 7
Which expression is equivalent to ºd ?
O ata
O o-a
og
90
O
Answer:
As by the picture, qp is the correct answer.
Step-by-step explanation:
Both are multiplication and in multiplication you can swap the factors and get the same answer every time.
7,270 place vaule whole number ?
Answer:
ThousandsHundredsTensOnes7270
Step-by-step explanation:
please help me someone ASAP
6. There are 14 teams in a basketball league.
Each team plays every other team twice
during the season
a) Suppose that you want to determine
how many games, in total, are played.
Suggest a simpler problem that you
could solve first
Answer:
i have the same queastion
Step-by-step explanation:
1.hgfhgf
Find the slope of the line whose equation is 5y = x - 3.
0-3
0 -3/5
O 1/5
05
5
Step-by-step explanation:
Answer: C. 1/5
Step-by-step explanation: