Answer:
-57
Step-by-step explanation:
Use BOMASB- brackets
O- of
M- multiplication
A- addition
S - subtraction
-3[1+2(4+5)]
first solve what is in the brackets
(4+5) = 9
place 9 in the brackets
-3[1+2(9)]
now multiply the 2 and 9
2*9 = 18
-3[1+18)]
1+ 18 = 19
now multiply the (-3) with 19
= -57
Answer:
-57
Step-by-step explanation:
To solve this problem, you need to use the acronym PEMDAS.
P = parenthesis (if there is any in the expression) or brackets
E = exponents (if there is any in the expression)
D/M = Divide or Multiply or both
A/S = Add or Subtract or both
In the problem, you need to simplify the parentheses ( ) inside the brackets first. For example: -3 [1 + 2(4 + 5)]. That will equal to -3 [1 + 2(9)]. Next, you can solve the brackets now. Since there is both a addition and multiplication problem inside these brackets, you must do the multiplying first. For example,
-3 [1 + 2(9)]. That equals to -3 [ 1 + 18}. Next, do the addition inside of the brackets and then multiply that answer to -3. For example, -3 [1 + 18}. That equals to -3 [19]. Do the multiplication by a calculator or by hand. if you are doing by hand, ignore the signs of the numbers until the very end.
If doing by hand, first you need to multiply 9 by the 3 to get 27. Keep the 7 and borrow a 2 on top of the ones places which is 1. Multiply the 1 by the 3 which gets 3 and add 2 to the 3 to get 5. You got the 2 from multiplying 9 by 3 which is 27. Since the 3 in this problem is negative, that will leave your answer with a negative number. Since a negative times a postive will always be negative. If the number of negatives is odd in the problem, then it will a negative answer. If the number of negatives is even, the answer will be positive. Same thing applies to division. You get -57 as your answer.
19
× 3
i need someones help
Answer:
y = -1/3x - 2
Step-by-step explanation:
We can use the points (-1, -1) and (5, -3) to solve.
Slope formula is y2-y1/x2-x1
-3-(-1)/5-(-1)
-2/6
-1/3
Find the y intercept.
y = -1/3x + b
-1 = -1/3(-1) + b
-1 = 1 + b
-2 = b
y = -1/3x - 2
Best of Luck!
how much can 6 go in 3
Answer: 6 cannot go into 3 because it is a larger number but 3 can go into 6 twice because 3x2=6
Answer:
If you can go into fractions 6 can go into 3 half a time, but if you can't do that then say 6 can't go into 3.
Step-by-step explanation:
Solve for h in the proportion.
28/24 = 42/h h= ?
Answer:
h = 36Step-by-step explanation:
[tex] \frac{28}{24} = \frac{42}{h} \\ [/tex]
Reduce the fraction on the with 4
We have
[tex] \frac{7}{6} = \frac{42}{h} \\ [/tex]
Cross multiply
That's
[tex]7h = 6 \times 42 \\ 7h = 252[/tex]
Divide both sides by 7
[tex] \frac{7h}{7} = \frac{252}{7} \\ [/tex]
We have the final answer as
h = 36Hope this helps you
Answer:
h=36
Step-by-step explanation:
28/24= 42/36
........
Jen makes a rectangular banner. It is 3/4 yard long and 1/4 yard wide. What is the area, in square yards, of the banner? Illl give brainlist if you answer please
Answer:
3/4
Step-by-step explanation:
3.79 for 4 avoacado how much is one
who ever answers it gets to be the briliets
So, here we know that for 4 avocados it costs $3.79.
First, lets round 3.79 to the nearest whole because even if we don't it will be the same rounded.
We now have $4.00.
What we do now is we look at the rounded cost and the amount of avocados.
So, for 1 avocado it cost 1 dollar.
If we were to do it without rounding it to the nearest whole we would have $1.05.
Please mark me brainliest i only need 2 more!
1) B. Which method of finding the distance is
the best? Explain
Answer and Step-by-step explanation:
Distance is the numerical measurement to find the space or interval between two objects. Distance also refers to physical length. Point x to point y distance is denoted as |xy|
There are many ways to find out the distance, distance between two objects or two points. The efficient way of finding the distance between two points is given below. Mathematically, the distance between two points on a coordinate plane can be determined by using the distance formula, which is:
d =√((x2-x1)2+(y2-y1)2),
Where (x1, y1) and (x2, y2) coordinates, and d is the distance.
The middle point between these two points is known as midpoint and can find out by using the formula
Midpoint = a + b /2.
The distance between two points number line can also be calculated by using the formula:
AB =|b –a| or |a-b|.
List multiples to find LMC of 27 and 45
Answer:
135
Step-by-step explanation:
I think you mean the LCM instead of LMC. LCM stands for Least Common Multiple. Anyway, some of the multiples of 27 are 27, 54, 81, 108, and 135. Some multiples for 45 are 45, 90, 135. We can see here that 27 and 45 share the mutiple of 135 which is the first number they have in common.
Yolanda is buying supplies for school. She buys n packages of pencils at $1.60 per package and m pads
of paper at $2.60 each. What does each term in the expression 1.6n + 2.6m represent? What does the
entire expression represent?
The term 1.6n represents the select)
The term 2.6m represents the (select)
The expression represents the (select)
Answer:
5.2 or 5.2O
Step-by-step explanation:
add 2.6m + 2.60 which means add 2.60 + 2.60
2.60
+2.60
______
5.2 (the zero is optional)
What is the quotient in simplest form?
12/7 divided by 3
7/36
4/7
1 3/4
5 1/7
Answer 7/36......
Explanation
What percent is the change in the price if: The price was $100 and now it is $1250?
By what percent does the price change, if the price was $100 and now it is $1250?
-----
x/100 = 1250/100
x = 1250 Percent
tell me if I'm wrong or not:)
Answer:
The price was increased by 1150%
Step-by-step explanation:
;)
Solve the equation. Use a calculator. c3 = 4 (Round to the nearest tenth as needed.)
determine the x and y intercept for the graph of 7x+3
Answer:
y-intercept is 3 and x-intercept is -3/7
Step-by-step explanation:
to find the y-intercept let x = 0 and solve for y.
y=7(0) +3
y=0+3
y=3
to find the x-intercept let y = 0 and solve for x
0 = 7x + 3
-3 = 7x
-3/7 =x
Let bold r 1 comma ... Comma bold r subscript pbe vectors in set of real numbers r superscript n, and let q be an m times n matrix. Write the matrix left bracket upper q bold r 1 ...Q bold r subscript p right bracket as a product of two matrices (neither of which is an identity matrix).
Answer and Step-by-step explanation:
Let bold r 1 comma ... Comma bold r subscript p be vectors in the set of real numbers r superscript n:
r1,… ,rp be vector in Rn
And let Q be an m times n matrix = Q= m x n
write the matrix left bracket upper q bold r 1 ...Q bold r subscript p right bracket as a product of two matrices = [Qr1, …, QrP], which is a product of two matrices.
To write the product of two matrices.
Use the definition of AB in reverse order:
[Qr1, …, QrP] = Q [r1, …, rp]
= QR
What a equation of 4 less than a number n is -15
Answer:
n-4=-15
Step-by-step explanation:
Can someone help me with this question please!
5-x=12
Answer:
x=-7
Step-by-step explanation:
Subtract 5 from both sides.
−x=12−5
Subtract 5 from 12 to get 7.
−x=7
Multiply both sides by −1.
x=−7
Answer:
x = -7
Step-by-step explanation:
When subtracting negative numbers from positive it's like adding. The rules are a bit wonky I know haha. So your problem would look like this when "x" is solved:
5 - -7 = 12
Hope this helps and have a nice day!
Determine whether the pair of lines parallel, perpendicular or neither.
y=1/3x+4. 3x+y=2.
A. Parallel
B. Perpendicular
C. Neither
what is four hundred five and eghity nine hundreths in number form deciamlas need help asp plesssssssssssssssssss
Answer:
405.89
Step-by-step explanation:
there go
5x+2[3(x-4)+1]=33
I need this question answered ASAP. Thanks!!!
Answer: x=5
Step-by-step explanation:
Distribute 3 through the parentheses
calculate the sum
disatribute 2 through the parentheses
collect like terms
move constant to the right and change its sign
add the numbers divide both sides of the equation by 11
Help :) !!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
B, because no misleading
brainliest and points
Which equation could you use to solve this word problem?
A. 6 + 2 = ?
B. 6 2 = ?
C. 6 × 2 = ?
D. 6 - 2 = ?
Answer:
C
Step-by-step explanation:
Given f(x) = x2 - 2x + 3, find the value(s) for x such that f(x) = 18. The solution set is o
Answer:
0
Step-by-step explanation:
Since f(x)=18 you would do:
f(x)= 18(2)-2(18)+3
f(x)=36-36+3
Final Answer: 0
Step-by-step explanation:
f(x) = x^2 - 2x + 3
f(x) = 18
x^2 - 2x + 3 = 18
x^2 - 2x + - 15 = 0
(x-5) (x+3) = 0
x = 5 (or) x = -3
not sure of the answer^^
Find the value of x that would prove y is parallel to z. State the converse used to support your answer.
Answer:
[tex] x = 15 [/tex]
Step-by-step explanation:
By the Consecutive Interior Angles Converse, if [tex] (3x + 7) + (10x - 22) = 180 [/tex], then y is parallel to z.
Solve for x
[tex] 3x + 7 + 10x - 22 = 180 [/tex]
Combine like terms
[tex] 3x + 10x + 7 - 22 = 180 [/tex]
[tex] 13x - 15 = 180 [/tex]
Add 15 to both sides
[tex] 13x - 15 + 15 = 180 + 15 [/tex]
[tex] 13x = 195 [/tex]
Divide both sides by 13
[tex] \frac{13x}{13} = \frac{195}{13} [/tex]
[tex] x = 15 [/tex]
what are real-world examples of translation, reflection, rotation, and dilation\stretch.
Answer:
Translation: Moving an apple from one area to another area.
Reflection: Mirrors.
Rotation: Rotating a car wheel.
Step-by-step explanation:
Write and solve a system of linear equations:
The larger of two numbers is 6 more than 3 times
the smaller. If the twice the larger number is increased by 3 times the smaller, the result is 3.
Find the numbers by solving algebraically. Show your work including the equations.
Answer:
Step-by-step explanation:
My variables are
d=big number
q=small number
My equations are
6=3q
2d+3=q
I will solve for q in first equation
6/3 = 3q/3
2=q
Now I will pluck back in to get d
2d+3=(2)
-3 -3
2d=-1
2d/2=-½
d=-1/4
So the solution is
(-1/4, .2)
Earth is approximately 9.3 × 107 miles from the sun. Saturn is approximately 8.87 × 108 miles from the sun. About how much farther is Saturn from the sun than Earth is?
Answer:
Both distances are in the scientific notation:
Earth - Sun = 9.3 * 10^7 miles
Saturn - Sun = 8.87 * 10^8 miles
8.87 * 10^8 - 9.3 * 10^7 =
= 88.7 *10^7 - 9.3 * 10^7 =
= 79.4 * 10^7 = 7.94 * 10 ^8 = 794,000,000 miles
Answer: Saturn is 7.94 * 10^8 miles farther from Sun than Earth is.
Step-by-step explanation:
I hope this helps you :)
-KeairaDickson
geometry angles help me out trynna get 100
Answer:
sorry I don't no the answer
Answer:
Supplementary angles
Step-by-step explanation:
These are angles adding up to 180 when put together and they are normally on a straight line.
HOPE IT HELPED
x2 + y2 + 17 = 138
Find the radius of the circle
[tex]x^2 + y^2 + 17 = 138\\x^2 + y^2 = 138 - 17\\x^2 + y^2 = 121\\x^2 + y^2 = 11^2\\Radius = 11[/tex]
write a polynomial of degree 5 with zero x=0,i square root 7, -2i
Answer:
[tex]P(x)=x^5+11x^3+28x[/tex]
Step-by-step explanation:
Roots of a polynomial
If we know the roots of a polynomial, say x1,x2,x3,...,xn, we can construct the polynomial using the formula
[tex]P(x)=a(x-x_1)(x-x_2)(x-x_3)...(x-x_n)[/tex]
Where a is an arbitrary constant.
We know three of the roots of the degree-5 polynomial are:
[tex]x_1=0;\ x_2=\sqrt{7}\boldsymbol{i}:\ x_3=-2\boldsymbol{i}[/tex]
We can complete the two remaining roots by knowing the complex roots in a polynomial with real coefficients, always come paired with their conjugates. This means that the fourth and fifth roots are:
[tex]x_4=-\sqrt{7}\boldsymbol{i}:\ x_3=+2\boldsymbol{i}[/tex]
Let's build up the polynomial, assuming a=1:
[tex]P(x)=(x-0)(x-\sqrt{7}\boldsymbol{i})(x+\sqrt{7}\boldsymbol{i})(x-2\boldsymbol{i})(x+2\boldsymbol{i})[/tex]
Since:
[tex](a+b\boldsymbol{i})\cdot (a-b\boldsymbol{i})=a^2+b^2[/tex]
[tex]P(x)=(x)(x^2+7)(x^2+4)[/tex]
Operating the last two factors:
[tex]P(x)=(x)(x^4+11x^2+28)[/tex]
Operating, we have the required polynomial:
[tex]\boxed{P(x)=x^5+11x^3+28x}[/tex]
NEED HELP ASAP!!!!!
Choose all properties that were used to simplify the following problem:
2/7 x 53 x 7/2
53 x 2/7 x 7/2
53 x 1
53
A)associative property of multiplication
B)commutative property of addition
C)associative property of addition
D)distributive property
E)multiplicative inverse
F)commutative property of multiplication
G)multiplicative identity
Answer:
multiplicative identity
Step-by-step explanation:
53×1=53
2(x+2)-4(x-1)=14
What do you need to do first to solve this expression
