find the determinant of the following matrix. [2 -3] [1 -4]
Answer:
A
Step-by-step explanation:
I don’t know
PLEASE ANSWER MY LAST QUESTIONNNN!!!!!!
I NEED TO TURN IT IN VERY SOON!!
Answer:
where is it?
Step-by-step explanation:
good luck have a good life
2+2
4+6
12+100
120x670
Step by step
Step-by-step explanation:
2+2=4
4+6=10
12+100=112
120×670=80,400
A local charity receives 13of a fundraiser during a craft fair and a bake sale. The total amount given to charity was $137.45. How much did the bake sale raise?
Complete question :
A local Charity receives 1/3 of funds raised during a craft fair and bake sale. The total amount given to the charity was $137.45. How much did the bake sale raise
Answer:
$412.35
Step-by-step explanation:
Given that:
Fraction Given to charity from bake sale = 1/3 of amount raised
Amount given to charity = $137.45
Let amount raised from bake sale = x
Hence,
1/3 of x = 137.45
x / 3 = 137.45
x = 137.45 * 3
x = $412.35
Amount raised from bake sale = $412.35
Frank ate half of his jellybeans and then bought a package with 16 more. If he now has 20 remaining jellybeans, how many did he have in the beginning?
Answer:
8
Step-by-step explanation:
20-16=4 4*2=8
Joshua has at most 10 dollars a cab company will charge him 4 dollars flat and a rate is 1.25 for each mile driven write and solve and inequality for the above situation
Answer:
4.8 miles
Step-by-step explanation:
First you need to figure out an equation which will be 10<or equal to 1.25m+4. In this equation m=the number of miles. Knowing this information you can now solve. You want to subtract 4 from both sides leaving you with 6 is less than or equal to 1.25m. You then divide both sides by 1.25 and you are left with 4.8 is less than or equal to m.
Someone please explain, it's most of my homework! I already did half the problem! Ellie bought 5 cups of apple juice and 7 sandwiches for $25.00. Jim bought 2 cups of apple juice and 3 sandwiches for $10.50. How much did each cup of apple juice cost? How much did each sandwich cost. I set up the equations 5a+7s=25 and 2a+3s=10.5. How do I solve them?
Answer:
St rt ok is et cell pic ch se art on FB
The angle between the incident ray and reflected ray is 90°. Calculate the angle of incidence and the angle of reflection.
Answer:
Step-by-step explanation:
The angle of incidence and reflection is 45°
The angle between them is 90°
they lie on the same plane, and angle of incidence = angle of reflection
the sum of all the angles is 180°
let angle of incidence and reflection be x
therefore,
90 + 2x = 180
x = 45°
(-3f+9)-(2-6f) what’s the answer
Answer:
jhi
Step-by-step explanation:
Answer:
3f+7
Step-by-step explanation:
Car sales increased steadily from March to August *
True
False
Answer:
i think it is true
Step-by-step explanation:
mark me as brainliest and follow and like my answer
Answer:
False
Step-by-step explanation:
Car sales increased steadily from
May to July
As you can see I have pointed the months with red dots
ok so tomorrow i have exams omg haha im so scareddd!!!!!
Answer:
Best of luck! I hope your exam goes well!!!
Create an algebraic equation for the word problem below:
Canadian Tire is selling coffee mugs. A coffee mug costs $5 and each day the price increases by $2.
Answer:
5+d2
Step-by-step explanation:
We'll make d=day
5+d2
5 is the base price
and 2 is the number that increases by day
Please tell me if it's incorrect
Happy Holidays!
Please help. I'll give brainliest :)
On a map 1 inch = 50 miles. If two cities are inches apart, how many miles are they apart?
14.3 miles
50 miles
175 miles
137.5 miles
Answer:
it would be 100
Step-by-step explanation:
if 1=50 and you have 2 then multiple 50 by 2 and that gives you 100
Answer:
Givint the fact that the two cities are 3 1/2 inches arpart t=which you forgot to put in, I would say that there 175 miles apart
Susan can swim 105 meters in 70 seconds. At this rate, how far can she swim in 30 seconds?
Answer:
45 meters per 30 seconds
Step-by-step explanation:
To figure this question out you first gave to find the unit rate of meters per second by dividing 105 by 70.
105 divided by 70 = 1.5
So Susan can swim 1.5 meters per second.
Then we multiply that amount by 30 to find the number of meters she can swim in 30 seconds.
1.5 x 30 = 45 meters
So, in conclusion, Susan can swim 45 meters per 30 seconds
Please help me with 9
Answer:
Fourth choice, 1/6
Step-by-step explanation:
15 + 8 + 10 + 12 + 15 = 60
Out of 60 cards, 10 of them is the go again card, so it's 10/60 which simplified is 1/6
At the beginning of the month, Rachel's Used Car Dealership had 80 cars on
the lot. Today, there are 100 cars on thelot. What is the percent change in the
number of cars on the lot this month?"
Answer:
25%
Step-by-step explanation:
Algebraic Expressions
Read and try to solve the problem below.
The Ramirez family is making tamales. They wrap the tamales in corn husks for baking.
They already have 8 corn husks. Isabel is bringing 3 bags of corn husks. Each bag
has the same number of corn husks.
How can you use an algebraic expression to show the total number of corn husks
the Ramirez family will have after Isabel arrives?
TRY
IT
Math Toolkit algebra tiles, number lines, sticky notes
Lo
Can you solve this by explaining.
Answer:
The answer is 1
Step-by-step explanation:
Start by solving the division part of the equation. In order to do that, you have to flip the fraction (reciprocal) and switch from division to multiplication, thus getting 3 x 3 = 9. Now you have 9 – 9 + 1, and from there you can simply work from left to right and get your final answer: 1.
find the missing side length. if necessary , round you’re answer to the nearest tenth ! pls help
Answer:
39
Step-by-step explanation:
1. Use the Pythagorean theorom: a^2+b^2=c^2.
C is the missing side here, which is the hypotenuse of the triangle. The other two sides and be put into the equation either way. Doesn't matter the order.
15^2 + 36^2 =c^2
2. Evaluate 15^2 and 36^2 and add the results.
15^2 = 225
36^2 = 1,296
225+1,296= 1,521
3. Take the square root of the answer.
√1521 = 39
Mrs. Piazza invested $8000 in a certificate of deposit that pays 3% simple interest for 4 years. How much will be in Mrs. Piazza's account at the end of 4 years?
Answer:
$8960
Step-by-step explanation:
Given
principal = $8000
rate= 3%= 0.03
time = 4 years
Required
the final amount, we assume that this is a simple interest investment.
Step two:
[tex]A= P(1+rt)\\\\A=8000(1+0.03*4)\\\\A=8000(1+0.12)\\\\A=8000*(1.12)\\\\A=8960[/tex]
The final amount in the account is $8960
YALL ARE WIZARDS IF YALL CAN DO IT
Answer:
So, lets say the refridgerator started at 37 degrees F alright?
Step-by-step explanation:
37 - 4 = 33
33 + 2 = 35
35 - 7 = 28
28 - 1 = 27
27 + 3 = 30
30 + 1 = 31
So the final temurature at 2:00pm would be 31 degrees F
Hope this helped :)
what is the percentage
Answer:
a percentage is a part of 100 or a fraction over 100
Slope of line a is ½. What is the equation of a line that is parallel to line a? Y+½x=2 -2x+y+2=0 2x-2=y -½x+y-2=0
Answer:
The equation of a line that is parallel to line a is y=½x + 2, or what is the same -½x+y-2=0
Step-by-step explanation:
A line is a polynomial function of the first degree that has the following form:
y = m * x + b
where m is the slope of the line and b is the intercept with the Y axis. The slope is the inclination of the line with respect to the abscissa axis.
In this case you know that the slope of line a is ½.
Parallel lines are two or more lines in a plane that never intersect. Two lines are parallel if they have the same slope and different y-intercepts.
You have:
y+½x=2 → y= -½x +2-2x+y+2=0 → y=2x -22x-2=y -½x+y-2=0 → y=½x + 2The line that has the same slope as line a is the last one, so the equation of a line that is parallel to line a is y=½x + 2, or what is the same -½x+y-2=0
I NEED HELP FAST!!!
What is the area of this figure?
Enter your answer in the box.
Answer:
81
Step-by-step explanation:
area of top triangle = 1/2 x 8 x 9 = 36
area of rhombus = 9 x 5 = 45
sum of areas = 81
please help i don’t understand
Answer:
well i dont either
Step-by-step explanation: i'm
weird
A school chorus has 90 sixth-grade students and 75 seventh-grade students. The music director wants to make groups of performers, with the same combination of sixth- and seventh-grade students in each group. She wants to form as many groups as possible. If the largest group was formed, how many students of each grade level would be in each group?
Answer:
The music director can form a total of 15 groups
6 Sixth grade students per group
5 Seventh grade students per group
Step-by-step explanation:
Sixth grade students = 90
Seventh grade students = 75
Find the highest common factor of 75 and 90
90 = 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90.
75 = 1, 3, 5, 15, 25, 75
The highest common factor of 75 and 90 is 15
Therefore, the music director can form a total of 15 groups
Sixth grade students per group = 90 / 15
= 6 Sixth grade students per group
Seventh grade students per group = 75 / 15
= 5 Seventh grade students per group
Simplify: 2k(14) + 7(2k) - 2
Answer:
42k-2
step by step equation:
calculator apps
Sierra's ice cream shop made $45 before she had to close early when the power went out. She realized she lost Two-thirds of a dollar each hour when the shop was closed. The expression that models this situation is 45 minus two-thirds h. What was Sierra's profit if the shop was closed for 6 hours? $24 $36 $41 $49
Answer:
the profit in the case when the shop is closed for 6 hours is $41
Step-by-step explanation:
The computation of the profit in the case when the shop is closed for 6 hours is shown below:
= Expression of the situation × number of hours in which the shop is closed
= 45 - 2 ÷ 3 × 6 hours
= $41
hence, the profit in the case when the shop is closed for 6 hours is $41
Therefore the third option is correct
Answer:
c
Step-by-step explanation:
u = 4i + 9j
8= -8j
Find: u +g
Answer:
4i + j
Step-by-step explanation:
I think you meant g instead of 8.
Given:
u = 4i + 9j
g = -8j
u + g
(4i + 9j) + (-8j)
4i + j
help pleasee due todayyy ! :(
Answer:
1. $434
2. 36 ways
Step-by-step explanation:
1. 350×6÷100=21
21×4=84
84+350=434
