what is (-3) X (5-7) - (39/3)
Answer:
-7
Step-by-step explanation:
(-3)×(5-7)-(39/3)
First solve the ones within the brackets
(-3)×(-2)-13
Then solve the multiplications and the divisions
6-13
= -7
The fall of brainly 2019-2021
those spam bots took it over
Answer: Pop up ads show up
Step-by-step explanation: because of them
Find the slope-intercept equation
Please help me
Answer:
[tex]y = -\frac{1}{3}x + 5[/tex]
Step-by-step explanation:
To being, slope intercept form is the infamous y = mx + b form. In which, m is equal to the slope and b is equal to the y-intercept. (1) To solve this, begin by finding two points of the line. One easy point to find is when x = 0 as it intersects with the y-axis. Two points are: (0,5) and (-3,6). (2) Next, use the slope formula to solve for the slope. The slope formula is [tex]\frac{y2-y1}{x2-x1}[/tex]. Plug in the y and x values; [tex]\frac{6-5}{-3-0}[/tex]. Simpliify the fraction; [tex]\frac{1}{-3}[/tex] --> [tex]-\frac{1}{3}[/tex]. Therefore -1/3 is our slope. (3) To solve for b, the y-intercept, set up the slope-intercept equation with the newfound slope (y = -1/3x + b) and plug in a point for the y and x values. Doing this will isolate the b so you can solve for it.
6 = -1/3(-3) + b
6 = 1 + b
-1 -1
5 = b
Therefore the y-intercept (b) is 5. (4) The final step is to combine the information into the slope-intercept form; y = -1/3x + 5. Good luck!
In the xy-plane, line k is parallel to the line with equation Y=7x+5. Which of the following could be an equation of line k??
Any equation that starts with y =7x
Parallel lines have the same gradient.
(No options to choose from)
Hope this helps!
Any Equation start with y = 7x + c is parallel to given equation.
What is Parallel lines?To determine whether or not two lines are parallel, the formula for parallel lines is used. When we have the slopes of two lines that we want to compare, we can use the parallel line formula. The parallel lines' distances never change.
Given Equation
y = 7x + 5
and line k
line k is parallel to equation y = 7x + 5
for parallel lines
The formula for determining whether two lines are parallel is as follows for any two lines with the equations y = m₁ x + c₁ and y = m₂x + c₂:
where m₁ and m₂ are the slopes of the two lines. m₁ = m₂.
given equation y = 7x + 5,
here m₁ = 7 and c₁ = 5
the line which is parallel to equation should be
y = 7x + c
where m₂ = m₁ = 7 and c₂ = c
Hence equation y = 7x +c is parallel to given equation.
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A total of $5000 is invested: part at 7 % and the remainder at 15 %. How much is invested at each rate if
the annual interest is $480?
13-28 Sketch the region enclosed by the given curves and find its area.
25. [tex]y=x^{4}, \quad y=2-|x|[/tex]
Answer:
Area (A) 0.0682
Step-by-step explanation:
The sketch for the region enclosed by the given curves can be found in the image attached below.
From the image below;
The two curves intersect in the area of tan 9x = 2 sin 9x
Recall that:
making x the subject; then:
The subdivision of the domain is in two intervals
where;
Area (A) =
Area (A) = 0.06818
Area (A) 0.0682
35-36 Use a graph to find approximate [tex]x[/tex] -coordinates of the points of intersection of the given curves. Then use your calculator to find (approximately) the volume of the solid obtained by rotating about the [tex]x[/tex] -axis the region bounded by these curves.
36. [tex]y=\sqrt[3]{2 x-x^{2}}, \quad y=x^{2} /\left(x^{2}+1\right)[/tex]
The approximate x-coordinates of the points of intersection of the given curves are 0 & 1.76, and the volume of the solid when rotated about the x-axis is 3.15 cubic units
Part A: The points of intersectionThe equations are given as:
y = ∛2x - x²
y = x²/(x² + 1)
See attachment for the graph of the above curves (equation)
From the attached curve, we have the following points of intersection
(x,y) = (0,0) and (1.76,0.76)
Remove the y coordinates
x = 0 and 1.76
Hence, the approximate x-coordinates of the points of intersection of the given curves are 0 and 1.76
The volume of the solid when rotated about the x-axisThe volume of the solid is calculated using:
V = π(R² - r²)
Where R and r are the outer and the inner radii, respectively.
In this case;
R = ∛2x - x²
r = x²/(x² + 1)
Using a calculator, we have:
V = 3.15
Hence, the volume of the solid when rotated about the x-axis is 3.15 cubic units
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Find the point-slope equation for the line that passes through the points (5, 35) and (-6, -31). Use the first point in your equation..
To Find ↓The point-slope equation for the lineCalculations ↓
First of all, we need to find the slope. In order to find the slope, we'll use the following formula :
[tex]\boxed{\\\begin{minipage}{2cm}slope \\ $\displaystyle\frac{y2-y1}{x2-x1}$\end{minipage}}[/tex]
[tex]\boxed{\\\begin{minipage}{2cm}$\displaystyle\frac{-31-35}{-6-5}$ \\ \end{minipage}}[/tex]
[tex]\boxed{\\\begin{minipage}{2cm}$\displaystyle\frac{-77}{-11} \\ \end{minipage}}[/tex]
Which simplifies to :
[tex]\text{Slope = 7 }[/tex]
Now that we know the slope, finding the point-slope equation is a piece of cake.
Remember Point-Slope :
[tex]\text{y - y1 = m(x-x1)}[/tex]
We're told to use the first point (5, 35) in our equation, so we'll do just that.
[tex]\LARGE\text{y - 35=7(x-5)}[/tex]
[tex]\mathsf{equation\:above}[/tex]
hope helpful ~
Deshaun drinks 0.25 L of milk every day. How much milk does he drink in 13 days?
Answer: 3.25 L
Step-by-step explanation:
0.25 x 13 days = 3.25
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
[tex] \textbf{Since it's a right angled Triangle we can } \\ \textbf{ use Pythagoras theorem } [/tex]
[tex] \sf{Cos (29°) = \dfrac{b}{c}} [/tex][tex] \sf{Cos (29°) = \dfrac{b}{260}} [/tex][tex] \sf{b= 260\cdot Cos (29°) } [/tex][tex] \sf{b= 260\cdot 0.875 } [/tex][ [tex] \textsf{Cos(29°)= 0.875} [/tex] ]
[tex] \sf{b= 227.5 in }[/tex][tex] \textsf{I hope you understood the procedure} [/tex]
Problem 20 pls helps
Answer:
135
Step-by-step explanation:
[tex]d = 45t[/tex]
[tex]d(3) = 45( 3) = 45 \times 3 = 135[/tex]
[tex]d(3) = 135[/tex]
I HOPE IT HELPED YOU
Answer:
135
Step-by-step explanation:
sub 3 in place of t then times and it 135
A 15-foot ladder is leaning against a building, with the base of the ladder 5 feet from
the building. How high up on the building will the top of the ladder reach?
Answer:
10√2
Step-by-step explanation:
We can form a triangle with the clues in the question, and use the formula A²+B²=C²
Now, we plug in our values.
5²+B²=15²
25+B²=225
B²=200
B=√200
√200 =√2x2x2x5x5 = 10√2
Given P(A) = 0.51, P(B) = 0.79, and P(A or B) = 0.66, are events A and B mutually exclusive?
Answer: No, the events are not mutually exclusive
Work Shown:
P(A and B) = P(A) + P(B) - P(A or B)
P(A and B) = 0.51 + 0.79 - 0.66
P(A and B) = 0.64
Since the result is not zero, this means the events are not mutually exclusive.
Mutually exclusive events are ones that cannot happen at the same time. Example: getting a "2" and a "3" on the same roll of a number cube.
Can you guide me through the steps of finding the area of a circle?
Answer:
A=(3.14)r²
Step-by-step explanation:
First you find your radius if it is a diameter you divide it by 2
Second you multiply the radius by pi (π=3.14)
lastly you square your answer
hope this helps!
11 4/5 divided by 3 1/5
A) 3
B) 3 1/2
C) 7/2
D) 4
Answer:
Step-by-step explanation:
The two given numbers both have the denominator 5, Thus the quotient quickly reduces:
11 4/5 becomes 59/5 and 3 1/5 becomes 16/5. Dividing the first expression by the second yields 59/16, which can't be reduced.
However, 59 = 48 + 11, so 59/16 = 48/16 + 11/16, which is approximately 3 1/2 (from either Answer B or Answer C).
The exact answer is 3 11/16; B and C are identical and are closer to 3 11/16 thn 3 or 4.
For each value of y, determine whether it is a solution to -2y+75-5.
Is it a solution?
Answer:
• No
• Yes
• Yes
• No
Step-by-step explanation:
To determine if the 4 given values of y are solutions to the inequality, start by solving the inequality. Solving an inequality is just like that of an equation, except that the direction of the sign changes when the inequality is divided by a negative number.
-2y +7≤ -5
Subtract 7 on both sides:
-2y≤ -5 -7
-2y≤ -12
Divide by -2 on both sides:
y≥ 6
This means that the solution can be 6 or greater than 6.
-10 and 3 are smaller than 6 and are not a solutions, while 7 and 6 satisfies the inequality and are therefore solutions.
_______
Alternatively, we can also substitute each value of y into the inequality and check if the value is less than or equal to -5.
Here's an example to check if -10 is a solution.
-2y +7≤ -5
When y= -10,
-2y +7
= -2(-10) +7
= 20 +7
= 27
Since 27 is greater than 5, it is not a solution to the inequality.
Enter your answer in the box.
x=
Answer:
43º
Step-by-step explanation:
Angles in a straight line = 180º so:
180 - (90+47) = 43º.
Alternate angles are equal so the x is also 43º.
Which of the function rules below would result in the following graph? On a coordinate plane, a line goes through (2, 2) and (6, 4). a. y = 0.5 x + 1 c. y = 2 x + 1 b. y = 0.5 x minus 1 d. y = two-thirds x + 1 Please select the best answer from the choices provided A B C D
Hoy do you write 43% as a decimal
Answer:
0.43
Step-by-step explanation:
Just take out the % sign and divide it by 100.
For your example:
43%
Take out the percentage
43
Divide it by 100.
0.43
And there is your answer :)
Answer:
You should move the decimal 2 place
Step-by-step explanation:
43/100 = 0.43
Hey y’all no bots pls I need help with some 7th grade math
Answer:
The ratio for the triangle on the left is
9/12 which is .75
Just multiply 16 by .75 and the missing angle is 12
Please help me find the area of this irregular shape.
Answer:
23 Cm(2)
Step-by-step explanation:
Sincerest Apologies if it is incorrect
if it's not 23 it may be:
26 Cm(2)
Solve using the quadratic formula. Round answers to the nearest hundredth.
6x^2-14x-9=0
Answer:
use the quadratic formula
Step-by-step explanation:
from the equation a=6 b=-14 c=-9
from the quadratic formula
[tex]x = ( - b {+ or - } \sqrt{ {b}^{2} + 4ac} ) \div 2a[/tex]
therefore insert in the values of a, b and c
[tex]x = ( - ( - 14) + or - \sqrt{ {( - 14)}^{2} + 4 \times 6 \times ( - 9)} ) \div 2 \times 6[/tex]
x=2.858148594
X=-0.52481526
after inserting
180 divided by *blank* = 9
The short-film festival at the county fair draws a large crowd of
moviegoers who enjoy the work of local filmmakers. Each year,
attendees vote for their favorite film in several categories, including
comedy, horror, and documentary. 65% of the 280 votes cast in the
comedy category were for Cat-urday Night Fever.
How many people voted for Cat-urday Night Fever as the best
comedy film shown at the festival?
The number of people who voted for Cat-urday Night Fever as the best comedy film is given by the equation A = 182 people
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number of people who voted for the comedy film be = A
Now , the equation will be
The total number of people = 280 people
The percentage of people who voted for the best comedy film = 65 %
So , number of people who voted for the comedy film A = percentage of people who voted for the best comedy film x total number of people
Substituting the values in the equation , we get
Number of people who voted for the comedy film A = ( 65 / 100 ) x 280
On simplifying the equation , we get
Number of people who voted for the comedy film A = 0.65 x 280
Number of people who voted for the comedy film A = 182 people
Therefore , the value of A is 182 people
Hence , the number of people is 182 people
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Here is a rule for generating a sequence; 3n+10 What is the 150th term of the sequence generate by this rule?
Answer:
[tex]\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}[/tex]
Topic - Arithmetic Progression ( AP )Given - a general term for a sequence.To find - the 150th term of the given sequenceso let's start ~
General term , [tex] A_{n} [/tex] = 3n + 10
let's consider certain values of n to get some information with us which will help us solve the problem further !
let's first consider , n = 1 ! then ,
[tex]3n + 10 = 3(1) + 10 \\ \dashrightarrow \: 13[/tex]
now , let's consider n = 2
[tex]3n + 10 = 3(2) + 10 = 6 + 10 \\ \dashrightarrow \: 16[/tex]
then , let's consider n = 3
[tex]3n + 10 = 3(3) + 10 = 9 + 10 \\ \dashrightarrow \: 19[/tex]
hence ,
now we've with us an AP which is as follows -
[tex]13 \: , \: 16 \: , \: 19 \: ......[/tex]
from this Arithmetic Progression ,
we can know that
a = first term = 13
d = common difference = 16 - 13 = 19 - 16 = 3
now ,
[tex]A _{n} = a + (n - 1)d \\ \implies \: A _{150} = 13 + (149)(3) \\ \implies \: A _{150} = 13 + 447 \\ \pink{\implies \: A _{150} = 460}[/tex]
hope helpful :D
In the picture below, line PQ is parallel to line RS, and the lines are cut by a transversal, line TU. The transversal is not
perpendicular to the parallel lines
Which of the following are supplementary interior angles?
OA. ZG and ZF
OB. ZE and ZF
OC. ZH and G
OD X and ZE
Answer: A
Step-by-step explanation:
A local gym conducted a survey to find the average number of hours per week people in the community spent exercising. Of the
300 people surveyed, 64% were men. Of all the people surveyed, 37% of people said they exercised 7 or more hours per week. Of all
the women surveyed, 75% said they spent less than 7 hours per week exercising.
Complete the two-way table to show the number of men or women in each category based on the given information.
Answer:
Men Women Total
Exercise less than 7 hours per week
Men:108
Women:81
Exercise 7 or more hours per week
Men:84
Women:27
Step-by-step explanation:
A movie theater sold 4 adult tickets for every 2 child tickets. The theater sold
32 adult tickets. How many tickets did it sell in all?
Adult tickets
Child tickets Total tickets
4
2
32
Answer:
Total amount of tickets is 48
Step-by-step explanation:
Step 1: Determine the amount of tickets they solid in all
We see that the movie theater has a ratio of 4 adult tickets for every children ticket which means that wen a child purchases a ticket there are 2 adult tickets that come along.
32 adult tickets / (2 adult tickets per child)
16 children tickets
Total tickets: 32 adult tickets + 16 children tickets = 48 tickets
Answer: Total amount of tickets is 48
A data set is normally distributed with a mean of 27 and a standard deviation of 3.5. Find the z-score for a value of 25, to the nearest hundredth.
Answer:
z score = .2843
Step-by-step explanation:
25 is 2 below 27
this is 2/3.5 = .5714 S.D. below mean
z-score . 2843
Please help me tyy!!
Answer:
aight so monkey monkey is monkey so if u put monkey and monkey together u get happy baby monkey did i explain myself?????
Step-by-step explanation: