Do these side lengths make a right triangle? 7, 13, and 218√
Answer:
no what you mean by 218√
Step-by-step explanation:
there has to be a 90 degree angle for it to be a right triangle
Please help me answer this
Answer: y = x - 5
Step-by-step explanation: hope this helps! :)
Please help!! And show work please! I'll give brainlist..!
need help asap this is due in 20 min!!! i will gove brainliest too! questions 8-11
8. x= 7
9. x= 9
10. x= -10
11. x= -18
So how do i do like Rule: y=x+3 and the boxes are like X Y ? 4 ? 8 ? 5 like how
Answer:
X: 1 5 2
Y: 4 8 5
Step-by-step explanation:
Given
[tex]Rule: y = x + 3[/tex]
X: ? ? ?
Y: 4 8 5
Required
Fill in the ?'s
We have that:
[tex]y = x + 3[/tex]
When y = 4; the rule becomes
[tex]4 = x + 3[/tex]
Subtract 3 from both sides
[tex]1 =x[/tex]
[tex]x =1[/tex]
When y = 8; the rule becomes
[tex]8 = x + 3[/tex]
Subtract 3 from both sides
[tex]5= x[/tex]
[tex]x =5[/tex]
When y = 5; the rule becomes
[tex]5 = x + 3[/tex]
Subtract 3 from both sides
[tex]2 = x[/tex]
[tex]x = 2[/tex]
So, the complete table is:
X: 1 5 2
Y: 4 8 5
What half of 90 percent in the percentages line
LC) Simply -3 over 2 ÷ 9 over 6
Step-by-step explanation:
-3^2 / 9^6
-3^2 / 3^2
(9 divided by 3 = 3 and 6 divided by 3 = 2)
It would now be -1 because a negative divided by a positive gives a negative.
-7(x-4)
.......................
Answer:
28−7x
i think :]
What is 71.2 x 300?
Answer: The answer is 21360
Step-by-step explanation:
In a cookie recipe I need 2 cups of flour for every 3/4 cup of sugar. How much flower do I need for 1 cup of sugar (unit rate)
Answer:2 2/3
Step-by-step explanation:
If RT is 10 centimeters long, what is ST?
Answer:a
Step-by-step explanation:weed
ABCD is a kite with AB≈BC.
Answer:
Line BD⊥ Line AC
ΔDMC ≅ ΔDMA
Hi! please help me out its due very sooon :((
Answer:
y= 1/3x -6
Step-by-step explanation:
you just have to plug the given values into the slope intercept formula:
y = mx +b
where M is the slope and B is the y-intercept
Answer:
y = 1/3x - 6
Step-by-step explanation:
using y=mx+b find the slope for
7) 8x + 3y = −9
Answer:
-8/3
Step-by-step explanation:
8x + 3y = - 9
Let's make y the subject of the formula.
y = - 9/3 - 8x/3
Rearrange
y = - 8x/3 - 3
The slope is the coefficient of x which is - 8/3
If you don't understand, please leave a comment
Please gimme brainliest
Find the measure of angle A (please help!!!)
Answer: 41 degrees
Step-by-step explanation:
so, we know that a triangle is 180 degrees. since we know that one angle is 80 degrees, we can subtract that from the equation. now, we are trying to find what X is so that we can find the angle. here is how i did it:
i rewrote it and removed the parentheses.
4x + 1 + 4x + 19 = 100
then, i collected like terms and calculated it.
8x + 20 = 100
then, i moved the constant to the right.
8x = 100 - 20
then, i simply calculated it.
8x = 10
solution: x = 10
so, we just insert X into the angle for A. that gets us 4(10) + 1 = angle A
40 + 1 = angle A, hence angle A = 41 degrees.
what is 621 divided by 9
Answer:
621/9=69
Step-by-step explanation:
Answer:
69
Step-by-step explanation:
69x 9= 621
If a ladder is to be placed 3 feet from the side of a house. If top of the ladder rests exactly on the edge of the house when it is placed at an angle of 72 degrees from the ground, how long is the ladder to the nearest foot?
Answer:
7 feet long
Step-by-step explanation:
This set up will give a right angle triangle where;
Length of the ladder is the hypotenuse = x
The distance of the ladder to the house is the adjacent = 3 feet
Angle of elevation theta = 72 degrees
Using the CAH in trigonometry identity;
cos theta = adjacent/hypotenuse
cos 72 = 3/hyp
hyp = 3/cos72
hyp = 3/0.4258
hyp = 7.05 feet
Hence the ladder is approximately 7 feet long
You opened a bank account at the beginning of the month and have added the same amount of money each day. On the 5th day, you have $80. On the 21st day, you have $160. How much did you originally open the account with? How much are you putting in the account each day? How much will you have on the 30th day of the month?
We are given:
Money on the fifth day (a₅) = $80
Money on day 21 (a₂₁) = $160
To Find:
Money in the bank on the first day (a₁) = ?
Money being added to the account per day (d) = ?
Money in the bank on day 30 (a₃₀) = ?
__________________________________________________________
Finding the money on day one and the money added:
Solving for equations
Since we are adding a constant amount to our account every day, the amount of money in the bank can be represented by an AP
We know that the formula for the nth term of an AP is:
aₙ = a₁ + (n-1)d
So, we can write the amount of money on day 5 as:
a₅ = a₁ + (5-1)d
a₅ = a₁ + 4d
80 = a₁+ 4d [We are given that a₅ = 80]
We are also given the amount of money on day 21:
a₂₁ = $160
Money on day 21 can be rewritten as:
a₂₁ = a₁ + (21-1)d
160 = a₁ + 20d [Since a₂₁ = 160]
Solving the equations:
Now we have 2 equations. We will now solve them to get the values of a₁ and d
160 = a₁ + 20d ----------------------(1)
80 = a₁ + 4d--------------------------(2)
From equation (2), we can say that:
a₁ = 80 - 4d [subtracting 4d from both sides]
Now, we will use this value of a₁ in the equation (1):
160 = a₁ + 20d
160 = (80-4d) + 20d
160 = 80 + 16d
80 = 16d [subtracting 80 from both sides]
d = 5 [dividing both sides by 16]
Now that we know the value of d, we can use it in any of the 2 equations:
80 = a₁ + 4d
80 = a₁ + 4(5) [since d=5]
80 = a₁ + 20
a₁ = 60 [subtracting 20 from both sides]
Now, we know the values of the initial amount of money and the money added to the account everyday
Initial money in the bank = $60
Money added everyday = $5
__________________________________________________________
Money in day 30:
We will use the AP formula to find the value of money on day 30
a₃₀ = a₁ + (30-1)d
We know that a₁ = $60 , d = $5
a₃₀ = 60 + 29(5)
a₃₀ = 60 + 145
a₃₀ = $205
Money on day 30 = $205
Answer:
started with $55
adds $5 each day
$205 on the 30th day
Step-by-step explanation:
21-5 = 16
160-80 = 80
80 divided by 16 = 5
5 * 5 = 25
80 - 25 = 55
9 * 5 = 45
160 + 45 = 205
Parallel lines r and s are cut by two transversals, parallel lines t and u.
How many angles are alternate interior angles with angle 9?
Answer:
2
Step-by-step explanation:
Consider this equation.
7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m - 0.8)
Mia solved the equation and determined that m = 2. Is she correct?
She is incorrect because when substituting 2 for m the result was a true statement.
She is incorrect because when substituting 2 for m the result was a false statement.
She is correct because when substituting 2 for m the result was a true statement.
She is correct because when substituting 2 for m the result was a false statement.
Answer:
B . She is incorrect because when substituting 2 for m the result was a false statement.
Step-by-step explanation:
Edge. 2020
Answer:
B
Step-by-step explanation:
Solve linear equations
Solve for x
-2(4x + 3) = 3(x + 1)
Answer:
x = - [tex]\frac{9}{11}[/tex]
Step-by-step explanation:
Given
- 2(4x + 3) = 3(x + 1) ← distribute parenthesis on both sides
- 8x - 6 = 3x + 3 ( subtract 3x from both sides )
- 11x - 6 = 3 ( add 6 to both sides )
- 11x = 9 ( divide both sides by - 11 )
x = - [tex]\frac{9}{11}[/tex]
PLEASE HELP
Based only on the information given in the diagram, which congruence
theorems or postulates could be given as reasons why AHIJE AKLM?
Check all that apply.
А. НА
B. ASA
C. AAS
D. LL
E. HL
F. LA
Answer:
Option A and Option C
Step-by-step explanation:
Given:
IJ ≅ LM
∠J ≅ ∠M
To Prove:
ΔHIJ ≅ ΔKLM
Statements Reasons
1). IJ ≅ LM 1). Given
2). ∠J = m∠M 2). Given
3). ΔHIJ ≅ ΔKLM 3). By HA property Or AAS property of
congruence
Therefore, Option A and Option C are the correct options.
What is the solution to this system of equations?
10x-y=53
-13xt92
y=-----------------
2
Answer:
x = 6, y = -113
Step-by-step explanation:
10x - y = 53 --- Equation 1
y = [tex]\frac{-13x+92}{2}[/tex] --- Equation 2
I will be using the substitution method.
Substitute y = [tex]\frac{-13x+92}{2}[/tex] into Equation 1:
10x - y = 53
10x - ([tex]\frac{-13x+92}{2}[/tex]) = 53
I want to make the denominators on the left side of the equation the same, so I will multiply 10x by 2 so that I can get a fraction.
[tex]\frac{20x}{2}[/tex] - ([tex]\frac{-13x+92}{2}[/tex]) = 53
Now that their denominators are both 2, I can combine the numerators under the same denominator.
[tex]\frac{20x-(-13x+92)}{2}[/tex] = 53
Two minuses, one outside a bracket and one inside makes a plus. One plus and one minus make a minus.
[tex]\frac{20x+13x-92}{2}[/tex] = 53
Evaluate like terms.
[tex]\frac{33x-92}{2}[/tex] = 53
Shift the (÷2) over to the right side and turn into (×2).
33x - 92 = 53 × 2
= 106
Shift the (-92) over to the right side and turn into (+92).
33x = 106 + 92
= 198
Find x.
x = 198 ÷ 33
x = 6
Substitute x = 6 into Equation 1:
10x - y = 53
10(-6) - y = 53
Evaluate.
-60 - y = 53
Shift the (-60) over to the right side and turn into (+60).
-y = 53 + 60
= 113
Find y.
y = -113
Please help as soon as possible! Thank you
Answer:
line PQ is congruent to like SR. reason: given
angle PQR is congruent to angle SRQ. reason: given
Line QR is congruent to line QR. reason: reflexive property of equality.
Triangles PQR and SQR are congruent by the SAS postulate
Step-by-step explanation:
which shows the equation in standard form, y=-1/2x-7
Answer:
I think its x+2y= -14
Step-by-step explanation:
will mark brainliest for correct answer
Answer:
Y
Step-by-step explanation:
Look at Y and look at the input and output it shows which one is it and how to find it you welcome :)
A train first travels east for 20 kilometers. Then it turns north and travels for 43 kilometers. Next it goes west for 20 kilometers. Finally, it travels south for an unknown number of kilometers. At the end of the journey, the train is back at the original location. How far did it travel southward?
Answer: the train traveled 43km southwards
Step-by-step explanation:
First, let's define.
North as the positive y-axis.
East as the positive x-axis.
And the initial position of the train is (0, 0).
Now, we know that:
"A train first travels east for 20 kilometers."
The new position will be:
(0, 0) + (20km, 0) = (20km , 0)
"Then it turns north and travels for 43 kilometers."
The new position will be:
(20km, 0) + (0, 43km) = (20km, 43km)
"Next it goes west for 20 kilometers."
If East if the positive x-axis, then West is the negative x-axis.
The new position of the train will be:
(20km, 43km) + (-20km, 0) = (0, 43km)
Then it travels south for an unknown number of kilometers, such that the final position is the same as the initial position, then if the train goes X kilometers to the south (and because North is the positive y-axis, South will be the negative y-axis), we have:
(0, 43km) + (0, -X) = (0, 0)
(0, 43km - X) = (0, 0)
Then we must have that:
43km - X = 0
43km = X
This means that the train traveled 43km southwards.
What is -2-(-7)
Plssssss explain
Answer:
5
Step-by-step explanation:
Showing the work:
= -2-(-7)
= -2--7
= -2+7
= 5
Answer:
5
Step-by-step explanation:
the answer is up at the top
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9. The model represents an equation.
1
1
1
-1
-1
1
1
-1
-1
1 1
1
1
-1
1
1
1
What value of x makes the modeled equation true?
Answer:
1
Step-by-step explanation:
I’ll mark youyou brainlist
Answer:
148 degrees
Step-by-step explanation:
a straight line is 180 degrees so subtract 180 - 32 = 148