Answer:
[tex]-\frac{3}{4}[/tex]
Step-by-step explanation:
Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
PEMDAS is the order of operation, and stands for:
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
~
First, subtract 3x from both sides of the equation:
3x (-3x) + 4y = (-3x) + 20
4y = -3x + 20
Next, divide 4 from both sides of the equation:
(4y)/4 = (-3x + 20)/4
y = (-3/4)x + 5
[tex]y = -\frac{3}{4}x + 5[/tex]
~
Note the equation.
y = mx + b
y = y
m = slope = [tex]-\frac{3}{4}[/tex]
x = x
b = y-intercept = 5
pls helpppp with explanation pss
Step-by-step explanation:
27 cubes are needed because you could need a 3×3 ×3 cube
please help me with this math project (photo linked). (7th grade unit 3) check my other questions plsss (last one)
1. -3x - 17
2. -24x + 25
3. 2x + 4
4. -9x -9
5. 7x - 2
Need the answer ASAP
Answer:
63
Step-by-step explanation:
To find the area of a trapezoid you have to use the formula
a+b/2 h
So we would substitute them
3 + 15 / 2 x 7
Which would equal
63
Hope this helps :)
What is 7-4/6 ?
What is 234-303+93847?
Answer:
7-4/6 = 6.33333333333
234-303+93847 = 93778
Step-by-step explanation:
A rectangular prism has a length of 5 cm, a width of 7 cm, and a height of 4 cm. What is the volume of the prism?
Answer:
140
Step-by-step explanation:
V=whl=7·4·5=140cm³
Answer:
140cm^3
Step-by-step explanation:
It is 140 because volume is base x length x height so 7 x 5 x 4 = 35 x 4 = 140 cm cubed so 140cm^3
Hope this helps
Real answer not a scam
Answer:
Area = 240 cm²
Step-by-step explanation:
Area of the shape = area of rectangle + area of triangle
= L*W + ½*bh
L = 18 m
W = 10 m
b = 10 m
h = 30 - 18 = 12 m
Plug in the values
Area of the shape = 18*10 + ½*10*12
= 180 + 60
= 240 cm²
POSSIBLE POINTS. 1
On the written portion of her driving test, Leslie answered 65% of the questions correctly. If Leslie answered 78 questions correctly, how many questions were on
the driving test?
What part is missing?
O percent
a
ASAP!!!
Answer:
Step-by-step explanation:
Solve the following proportion for
y
y
4
=
11
17
Round your answer to the nearest tenth.
please helppp
Given sin^2 x = (1 - cos(2x))/2 Prove: sin(x/2) = plus/minus sqrt((1 - cos(x))/2) Prove Complete the steps of the proof
Answer:
1. half angle
2. x
Step-by-step explanation:
The missing parts of the proof is the variable x.
What are Trigonometric Functions?Trigonometric functions are those functions which are the ratio of the sides of a right angled triangle.
Given,
sin² (x) = [1 - cos (2x)] / 2
We have to prove sin ([tex]\frac{x}{2}[/tex]) = ± [tex]\sqrt{\frac{1-cos (x)}{2} }[/tex]
First, we have
sin² (x) = [1 - cos (2x)] / 2
Substituting x/2 in place of x, we get,
sin² (x/2) = [1 - cos (2x/2)] / 2
sin² (x/2) = [1 - cos (x)] / 2
sin² ([tex]\frac{x}{2}[/tex]) = [tex]{\frac{1-cos (x)}{2} }[/tex]
Taking square root on both sides,
sin ([tex]\frac{x}{2}[/tex]) = ± [tex]\sqrt{\frac{1-cos (x)}{2} }[/tex]
Hence it is proved.
Learn more about Trigonometric Functions here :
https://brainly.com/question/6904750
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Ralph opened up his checking account with $100. On Monday, he withdrew $45 to purchase a pair of jeans. On Wednesday, he deposited a $25 check he received for his birthday from his uncle. On Friday, he used his debit card to buy a $98 football ticket. What is the balance in Ralph's checking account?
Answer:
The answer is -18
Step-by-step explanation:
He starts off with $100 in his account. He then take so $45 to purchase a pair of jeans, so we have to subtract 45 from 100 and that gives us $55. He now has $55 in his account, he then adds another $25 to his account, so we have to add 25 to 55 and that will give us $80 in his account. Finally on Friday he takes out $98 of his checking account. He takes out more than he has in his checking account so we have to subtract $80 from $98 and we will get $18, but since he takes out more than what he has in his account the answer will be negative and we end up with -18 dollars in his checking account.
Answer:72
Step-by-step explanation:
solve for the missing side
Answer: 8
Step-by-step explanation: you have to cross multiply 6 and 4 to get 24. 24/3 is 8
Hope this helps
Five less than 10 times a number is -13.
Answer:
10 x X - 5 = -13
Answer:
Step-by-step explanation:
10x-5= -13
10x= -13+5
10x= -8
x= 10/-8
x= -1.25 or 5/-4
Gabrielle spends $12 of her weekly allowance on lunch. If this amount is 60% of her weekly allowance, what is her total weekly allowance? Use a proportion to solve.
Answer:
don't type that link it's a scam dawg
A person earns $23 comma 600
one year and gets a 5% raise in salary. What is the new salary?
Answer:
la respuesta que buscas es bastante simple pero no lo sé
Step-by-step explanation:
If another sample of size 100 is taken, what is the probability that its sample mean will
be greater than 2.56 in?
Answer:
I don't know the answer to this but
Suppose we draw a sample of size n=16 from this population and want to know how likely we are to see a sample average greater than 22, that is P( > 22)? So the probability that the sample mean will be >22 is the probability that Z is > 1.6 We use the Z table to determine this: P( > 22) = P(Z > 1.6) = 0.0548.
Step-by-step explanation:
A test is 45 minutes long. There are 3 sections of the test that each take an equal amount of time. How many minutes m is each section of the test? Write an equation to represent the number of minutes for each section.
Please help me
Answer:
15
Step-by-step explanation:
Answer:
each section takes 15 minutes long
Step-by-step explanation:
An equation you can use to get this is 45 ÷ 3 = x
x = 15
so the answer to the equation would be 45 ÷ 3 = 15
Tarzan is making his mom a card for her birthday. He drew a model of the card before he created it. The model is shown below.
The front of the card is shown. If Tarzan covers the whole front side of the actual card with decorative paper, how much paper would he need? you may use exact answers or round to the nearest hundredth.
Answer:
The area of a triangle uses the equation:
A = ab/2
a = 12
b = 9
A = 12 * 9 / 2
A = 54 inches
54 / 3 = 18
He needs 18 feet of paper
HELP!!!!!!!!!!! !!!!!!!!!!
Answer:
second one is 3, the last one is 4560
Step-by-step explanation:
5. Your students have been working on algebra equations involving inequalities. The
rule for learning the > sign is:
ОООО
A) the arrow has nothing to do with numbers.
B) the arrow always points to the largest side.
the arrow always points to the smallest side
D) the opening of the arrow is always on the smallest side.
Answer:
C) the arrow always points to the smaller side
Step-by-step explanation:
if you struggle to remember think of it as a crocodile going for the highest amount of 'food', in this case the food is the number
Answer: C, the arrow always points to the smallest side.
Step-by-step explanation:
A way of remembering which way the '>' sign goes is to think of it as a crocodile mouth (the open bit) and the crocodile wants the most food (the biggest number).
Can someone help me and not be a troll.... I’ll reward points + brainalist
Answer:
The answer is 69.5
Step-by-step explanation:
First u wanna find the area of the rectangle and since it already gives you the the height and width you want to multiply them together 13×4= 52
meanwhile triangle is 5ft tall and the base is 7ft
using the formula to solve for area of a triangle you would multiply height and base and divide by 2
you should end up with 17.5 then u add that to 52 and get 69.5 ♡ Hope this helps.
How do I solve this? Will mark brainliest
Answer:hi
Step-by-step explanation:
its d
if there are only 2 of a particular stamp remaining out of 5000 originally printed, what percent remains today?
you are correctyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
Answer:
yayyy
Step-by-step explanation:
Answer:
Aww Thanks :)
Step-by-step explanation:
find each angle measure.( Diagrams are not drawn to scale)
I need help with these QUESTIONS ANYONE ?????!!!!!
PLS HELP AND ANSWER QUICK
Answer:
ACB=44°
DCE=35°
BCD=101°
Step-by-step explanation:
ACB is a triangle and all triangles are 180 degrees
78+58=136
180-136=44
DCE is also a triangle
85+60=145
180-145=35
a straight line is 180 degrees, we already know what the other two is.
35+44=79
180-79=101
Sandra saves 12% of her salary for retirement. This year her salary was $3,000 more than in the previous year, and she saved $4,200. What was her salary in the previous year?write an equatio____.sandre's salary in the previous year was___
Answer:
44
Step-by-step explanation:
FREE BRAINLIEST IF RIGHT
Answer:
D is the only one that matches up if I remeber how to do this correctly
Answer:
Yes it is d I agree with him
Step-by-step explanation:
Need help please ASAP.
The school has 6 rows of lockers. Each row has 35 lockers. For the first 5 rows, all of locker are taken. For the last row, 3/5 of the locker are taken , 3/4 of all locker that are taken have decorated name tag. How many locker at school have decorated name tags.
a) 145
b) 141
c) 143
d) 147
The number of locker at school have decorated name tags is 147. Therefore, option D is the correct answer.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given that, the school has 6 rows of lockers. Each row has 35 lockers.
For the first 5 rows, all of locker are taken.
Number of lockers in 5 rows are 35×5=175
For the last row, 3/5 of the locker are taken is
3/5 ×35 =21
So, the total number of lockers taken = 175+21
= 196
3/4 of all locker that are taken have decorated name tag
Now, 3/4 ×196
= 3×49
= 147
Therefore, option D is the correct answer.
To learn more about the unitary method visit:
brainly.com/question/22056199.
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I need help :( on math and I forgot to study!:
When is the additive relationship used? Select all that apply.
1.When subtracting the same amount to an x-value.
2.When dividing the same amount to an x-value.
3.When multiplying the same amount to an x-value.
4.When adding the same amount to an x-value.
Answer:
3 and 4
Step-by-step explanation:
Answer:
1st and last one just did the question and it was right