Answer:
it's 6
Step-by-step explanation:
2*3 is 6 and I*I is i^2 which equals to 1 so overall 6
Answer:
-6
Step-by-step explanation:
2i* 3i
Multiply the numbers 2*3 = 6
Multiply the imaginary number i*i = i^2
We know that i^2 = -1
6* i^2 = 6*-1 = -6
Which of the following sets of measures
cannot be the lengths of the sides of a right
triangle?
A
5 cm, 12 cm, and 13 cm
B
9 cm, 12 cm, and 17 cm
C
1 cm, 2.4 cm, and 2.6 cm
D
2.5 cm, 6 cm, and 6.5 cm
you can use the formula of pythagoras theorem to know what of them is wrong
in the first case
-5^2 + 12^2 =169
13^2=169 ( it's a right equation so it can be lengths of right angle tri )
in the second case
_9^2 + 12^2 =225
17^2 not equal 225
so these are the lengths that can't be a right angle triangle
Marco brought $25 to a facility that has indoor batting cages. He can buy 1 token for $1.25, which will give him 15 pitches. He needs to have at least $5 leftover to buy lunch. How many tokens, t, can Marco buy and still have enough money for lunch?
First what I did was take out the 5 dollars. So I did 25 minus 5.
25 - 5 = 20
Next, I divide the left over 20 dollars by 1.25 to see how many tokens Marco could buy.
20 / 1.25 = 16
Which i came up with 16. So Marco can buy 16 tokens and still have enough money to use to buy lunch.
HOPE THIS HELPS! :)
Which graph represents a function?
Answer:
the bottom right one
Step-by-step explanation:
it does not overlap so it is a function. What you can do is drag a pencil over it and if there are not 2 lines touching the pencil thebwhole waybit is a function
Ken is cutting wooden pieces that each measure 2/3 ft long. If ken is cutting from a piece that measures 9 1/3 ft, how many pieces can ken cut
Answer:
14 pieces
Step-by-step explanation:
Given that the total length available is 9 1/3 ft long and the pieces being cut is 2/3 ft long, the number of pieces that may be cut may be computed by dividing the total length by the length of each piece
= 9 1/3 / 2/3
= 28/3 * 3/2
= 14 pieces
Can someone walk me through this?
Answr :
I hope my answer is correct
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Kenji drives 18.4 miles in 16 minutes. He passes a sign, which gives the speed limit as 60 mph. By how much, in mph, did Kenji's average speed exceed the speed limit?
The amount of speed by which kendri exceeded the speed limit is; 9 mph
We are given;
Distance; d = 18.4 miles
Time; t = 16 minutes = (16/60) hours
Now, the formula for speed is;
Speed = distance/time
Thus, let's Calculate kenji's speed;
Kenji's speed = 18.4/(16/60)
Kenji's speed = 69 mph
We are told that the speed limit is to be 60 mph, this means that kendri exceeded the speed limit by;
69 - 60 = 9 mph
Read more about speed and distance at; https://brainly.com/question/21791162
Pls help with #6 pls pls!!!
Answer:
Answers in explanation.
Step-by-step explanation:
Finding angle 1:
52 + angle 1 = 180
angle 1 = 128
Finding angle 2:
128 (angle 1) + angle 2 = 180
angle 2 = 52
Finding angle 5:
52 + 47 + angle 5 = 180
angle 5 = 81
Finding angle 3:
angle 2 + angle 3 + angle 5 = 180
52 + angle 3 + 81 = 180
angle 3 = 47
Finding angle 4:
angle 3 + angle 4 = 180 OR angle 4 + 47 = 180
47 + angle 4 = 180
angle 4 = 133
Factorise 3y^3-4xy+2y
Answer:
3y^3-4xy+2y
y(3y²-4x+2)
A house costs $18,000, which is 9/10 of the cost of a car. A motorcycle costs 1/5 of the cost of the car or 4/5 the cost of 100 basketball balls. How much do you need to pay for 30 basketball balls?
Answer:
.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Is it possible for two numbers to have a difference of 8, and a sum of -6? If so, what are the two numbers?
Answer: The two numbers are 1 and -7
1 minus -7 = 1 - (-7) = 1 + 7 = 8 .... difference
1 plus -7 = 1 + (-7) = -6 .... sum
===================================================
Explanation:
Let x and y be the two numbers. Let's say that x > y. Meaning that x is the bigger value.
They have a difference of 8 tells us that
x-y = 8
since "difference" is the result of subtraction. The term "sum" means the result of addition. Having a sum of -6 tells us
x+y = -6
We have this system of equations
[tex]\begin{cases}x-y = 8\\x+y = -6\end{cases}[/tex]
We can add the equations straight down. So we add the x terms to get x+x = 2x. The y terms add to -y+y = 0y = 0, so the y terms go away. The stuff on the right hand side adds to 8+(-6) = 2
After adding the equations straight down, we boil things down to the equation 2x = 2 which solves to x = 1, after dividing both sides by 2.
Then you'll use x = 1 to find y
x-y = 8
1-y = 8
-y = 8-1
-y = 7
y = -7
or
x+y = -6
1+y = -6
y = -6-1
y = -7
Regardless of what equation you pick, you should end up with the same y value. This helps confirm we have the correct x value.
Another way to check is to plug (x,y) = (1,-7) into both equations of the system. You should end up with true statements after simplifying fully.
So the two numbers are x = 1 and y = -7
10.25 divided by 0.5
Answer:
the answer is 20.5 i hope this helps you
Step-by-step explanation:
Answer:
20.5
Step-by-step explanation:
divide 10.25÷0.5=20.5
Simplify the expression:
5a - b + 1/2c where a = 2, b = 3, and c = 12
Answer:
10a - 3b +6c
Step-by-step explanation:
A store sells the following brands of pasta sauce. Brand A: 32 oz. for $2.90 Brand B: 20 oz. for $2.09 Brand C: 48 oz. for $4.00 Brand D: 10 oz. for $1.25 Which brand is the best buy?
Brand A: 32 oz. for $2.90
Brand B: 20 oz. for $2.09
Brand C: 48 oz. for $4.00
Brand D: 10 oz. for $1.25
-----
To solve you will have to divide cost/oz.
-----
Brand A: 1 oz. for $0.09
Brand B: 1 oz. for $0.10
Brand C: 1 oz. for $0.08
Brand D: 1 oz. for $0.13
-----
So, Brand C is the best buy because it is the cheapest.
BOLDED THINGS ARE IMPORTANT LOL
What is -9 x (-3) ????
Answer:
the answer is 27
Step-by-step explanation:
Since both intergers are negative, two negative intergers multiplied equal a positive answer. after wards just multiply 9 and 7 together. I hope this helped.
At an animal shelter, there are 36 dogs and a number of cats. If 40% of the animals are cats, how many cats are at the animal shelter?
Answer:
14.4
Step-by-step explanation:
Combine like terms
(4x^2+6x+7)−(−8x^2−2x+6)
Answer:
12x^2+8x+1
Step-by-step explanation:
Joe went to the store and bought 4 cans of peanuts for $7.80 .What is the constant of proportionality? (explain what you do to solve and actually solve)
Answer:
84
Step-by-step explanation:
A grocery store sells salmon fillets in package that contains at least 3 fillets of salmon,but no more than 5.which of the following could be the total number of salmon fillets in 6 packages
Answer: 18 ≤ 6*S ≤ 30
Where S is the number of salmon fillets in one single package.
Step-by-step explanation:
Let's define S as the number of salmon fillets in one package.
We know that it contains at least 3, and no more than 5, then we can write:
3 ≤ S ≤ 5
Now we want to know the total number of salmon fillets that could be on 6 packages, then if S is the number of salmon fillets in one package, 6*S will e the number of salmon fillets in 6 packages.
We can find this by multiplying the inequality:
3 ≤ S ≤ 5
by 6.
We get:
6*3 ≤ 6*S ≤ 6*5
18 ≤ 6*S ≤ 30
Then in 6 packages, we could have any number between 18 and 30 fillets of salmon.
PLZ HELP (05.01) "Sammy is trying to determine how many triangles she can create out of a square grid that has a side of 14 inches. Use the image below to determine the area Of the triangle and how many she can cut out."
Answers are on the picture
Answer:
Step-by-step explanation:
You first have to find the area of the square grid
To find this you multiply the sides
14 * 14 = 196
Next you have to find the area of the triangle
To find the area of a triangle you use the equation
h is height
b is base
Put in the values you know
Multiply
The area of the triangle is 49 inches squared
You divide the area of the triangle by the area of the square
196 / 49 = 4
The answer is 4 triangles
please help I appreciate it :)
24x - 16 is the answer!
Explanation:
Area of a rectangle = length x breadth
Therefore, Area of the given rectangle will be; 8 (3x-2)
= 24x - 16.
2) Mackenzie just started training for a marathon. According to her plan,
she must run 19 miles the first week and 25 miles the second week. What is
the percent increase?
Answer:
32%
Step-by-step explanation:
25 - 19 = 6
6 divided by 19 = 0.315
round to the nearest percent, 32%
A line contains points represented by the tables of values. what is the y-intercept of the line
please helppp!! ill give brainliest <333
Answer: Area: [tex]D. 32\frac{6}{20}[/tex]
Step-by-step explanation:
Step 1: Convert the Expressions
[tex]4\frac{3}{4}*6\frac{4}{5}[/tex]
[tex]\frac{19}{4}*\frac{34}{5}[/tex]
Step 2: Reduce the Numbers
[tex]\frac{19}{4}*\frac{34}{5}[/tex]
[tex]\frac{19}{2}*\frac{17}{5}[/tex]
Step 3: Multiply
[tex]\frac{19}{2}*\frac{17}{5}[/tex]
[tex]\frac{323}{10}[/tex]
Step 4: Simplify
[tex]\frac{323}{10}[/tex]
[tex]32\frac{6}{20}[/tex]
Please mark brainliest if this helped! :)
Hewo helppT-T pwease :3
2/5+____= 11/15
Answer:
1/3 is the answer
Step-by-step explanation:
Answer:
hi! so first you make 2/5 into 6/15 and the answer would be 5/15 (or 1/3 if you simplify it) because 6/15+5/15=11/15
Pleas help I’m so confused
Answer:
Exact form: 7/2
decimal form: 3.5
Please help it’s for a grade multiple-choice
Answer:
2x ( 5x + 6 )
Step-by-step explanation:
What you want to do is simplify each of the answer choices you have and see which one is the same as the expression given.
2x ( 5x + 6 ) Distirbute 2x to 5x + 6.
2x times 5x equals 10x² because x times x equals x².
2x times 6 equals 12x.
Once you simplify this expression, you get 10x² + 12x which is the expression you started with!
What is the coefficient in the expression 3n + 1
The difference of two complementary angles is 26 degrees. The sun of both angles is 90 degrees. Find the measurements of the angles. Write both equations. And find the solution to the system.
Answer:
I DONT KNOW IM VERY SORRY PLEASE GIVE ME 5 STARS I WOULD REALLY APPRECIATE IT...
Step-by-step explanation:
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solve for s -7s+3s-6=14
Answer:
s=-20/3
Step-by-step explanation:
Line the numbers
Answer:
s=-[tex]\frac{20}{3}[/tex]
Step-by-step explanation:
Exact Form:
s=−[tex]\frac{20}{3}[/tex]
Decimal Form:
s=−6.6 repeating
Mixed Number Form:
s=−6[tex]\frac{2}{3}[/tex]
What is the simplified version of this?[tex]\frac{\sqrt{2} }{3+\sqrt{5} }[/tex]
Answer:
(3√2 - √10)/4Step-by-step explanation:
Simplify, rationalize the denominator
√2/(3 + √5) = √2(3 - √5)/(3 + √5) (3 - √5) =(3√2 - √10)/(3² - 5) =(3√2 - √10)/4