Answer:
A
Step-by-step explanation:
Z is the same as the answer to the equation so if you add 18 and 96 together you will get z
also sum means adding
Answer: a
Step-by-step explanation:
the answer has addition and it says 18+96=z so i believe that theyre trying to say that whatever you add is gonna equal z so i believe the correct answer is a (:
The straight line 2x + 3y = 7 meets the curve
xy + 10 = 0 at the points P and Q. Calculate the
gradient of the curve at P and at Q.
Step-by-step explanation:
xy + 10 = 0. => y = -10/x.
2x + 3y = 7. => 3y = -2x + 7, y = -2/3 x + 7/3.
When -10/x = -2/3 x + 7/3,
-10 = -2/3 x² + 7/3 x, 2/3 x² - 7/3 x - 10 = 0.
=> 2x² - 7x - 30 = 0
=> (2x + 5)(x - 6) = 0
=> x = -2.5 or x = 6.
dy/dx = d/dx [-10/x] = 10/x².
When x = -2.5, dy/dx = 10 / (-2.5)² = 1.6.
When x = 6, dy/dx = 10 / (6)² = 5/18.
Hence the gradients at the points are 1.6 and 5/18.
.. At a football game, there were 4 times as many fans for the home team as there were for the visiting team.
What was the ratio of home-team fans to visiting team fans?
This is ratios
Answer:4
Step-by-step explanation:
Given
Home team fans are 4 times the visiting team fans
Suppose there are x visiting fans
So, home team fans are 4x
The ratio of home-team fans to visiting team fans = [tex]\frac{4x}{x}=4[/tex]
PLEASE ANSWER! ILL GIVE YOU BRILLIANTEST!
How can middle school students increase their self-esteem and gain
more confidence? According to the Mentoring Matters Organization,
one way is to find a senior adult mentor. For this reason, Hinkle Middle
School should consider sponsoring a mentor program with our local
senior center.
A. Although the introduction establishes a strong claim, it is
ineffective because it provides detailed information that should be
discussed in the body paragraphs.
B. The introduction is effective because the main point of the essay
is directly communicated in the opening sentence.
C. The introduction is effective because it presents the topic in an
engaging way and clearly establishes the main idea.
D. Although the introduction presents valid background information,
it is ineffective because the author does not cite a credible source.
Answer:
The answer to your question will be C(The introduction is effective because it presents the topic in an engaging way and clearly establishes the main idea. because The introduction is really effective in presenting the topic in an engaging way and it clearly establishes the main idea.
Answer:
C
Step-by-step explanation:
I took that test a while ago :)
I travel 120 km in 2 hours. What was my average speed
Answer:
approximately 75mph
Step-by-step explanation:
can someone please help me i can’t figure this question out (look at the photo)
Answer:
the y intercept is 5
Step-by-step explanation:
the end behavior is that the graph is no longer traveling downward but is steadily going forward.
this is my best guess for the behavior question but I know the y intercept is 5 for a fact.
How can you express 11x7 using the distributive property
Answer:
77
Step-by-step explanation:
Add ( 2y + 2 ) + ( 3x + 9)
Answer:
2y + 3x + 11
Step-by-step explanation:
I'm not sure..
Derrick plays football. During practice the ratio of quarterbacks to wide receivers is 5:12. If there were 36 wide receivers, how many quarterbacks would there be?
Answer:
I believe there would be 15.
Step-by-step explanation:
well 12×3=36
5×3=15 so 15:36
HELP PLS
Solve for x
x=[?]
3x + 2 6x - 20
Step-by-step explanation:
Remember that the sum of angles on a straight line are supplementary. (180°)
Therefore 3x + 2 + 6x - 20 = 180.
=> 9x - 18 = 180
=> 9x = 198
=> x = 22.
What is the value of X what is the measure of 2 PLEASE HELPPP
Answer:
x = 11 , m∠2 = 31
Step-by-step explanation:
We know that m∠1 is equal to both 6x+8 and 74
Therefore, 6x+8 = 74
And 6x = 66
x = 11
To find m∠2, we just plug in the value of x that we got earlier
(7x-2) + m∠2 = 106
(77-2) + m∠2 = 106
m∠2 = 31
Find the nth term of
1,4,7,10,13,16
which is the correct answer
n+3
3n+1
3n-2
3n+2
(a) n+3......................
seventh term is 19
eight term is 22
nine term is 25
HELP HELP HELP HELP!!!!!!!!!!!!
Answer:
y-7 hope it helps your welcome
Could you help me solve 2(2z+5)=50
Answer:
Step-by-step explanation:
(2×2z)+5×2=50
or, 4z+10=50
or, 4z=50-10
or, 4z=40
or,z=10
Plz mark me as brainliest
Plsss help 3333
Find tan0
Answer:
Step-by-step explanation:
Joe's dad sold a motorcycle he bought two years ago for $1500 he sold it for 40% of the amount he originally paid for it Thayer regional cost is X write an expression that shows the sales price of a motorcycle
Your help is greatly appreciated!
Answer:
x = $1500 x 0.40
Step-by-step explanation:
This is how you find 40 percent of the original cost sorry If this isn't what you were looking for :(
Grace started her own landscaping business. She charges $6 an hour for mowing lawns and $11 for pulling weeds. In September she mowed lawns for 63 hours and pulled weeds for 9 hours. How much money did she earn in September? *
Answer:
$477
Step-by-step explanation:
63.6=378
11.9=99
378+99=477
f(x) = -3x2 + 5
the range of the function
Answer:
y ≤ 5
Step-by-step explanation:
5 is the max value and the lowest is negative infinity so y is less than or equal to 5
I need help please!!!
Answer:
The answer is C. 200 miles.
Step-by-step explanation:
Answer:
200 miles
Step-by-step explanation:
This is where both cars intercept
Find the values of a and b such that x^2-2x+2=(x-a)^2+b
Answer:
a = 1, b = 1
Step-by-step explanation:
Expand the right side and compare the coefficients of like terms on both sides, that is
right side
(x - a)² + b ← expand factor using FOIL
= x² - 2ax + a² + b
Compare to left side x² - 2x + 2
Compare the coefficients of the x- term
- 2a = - 2 ( divide both sides by - 2 )
a = 1
Compare the constant terms
a² + b = 2 ( substitute a = 1 )
1² + b = 2
1 + b = 2 ( subtract 1 from both sides )
b = 1
Thus a = 1, b = 1
Claire is building a dollhouse where 1 inch on the plans is equivalent to 5 inches on the actual dollhouse.
If the house is to be 32.5 inches tall, what will the height be on the plans?
Answer: 6.5 inches
Step-by-step explanation:
From the question, we are informed that Claire is building a dollhouse where 1 inch on the plans is equivalent to 5 inches on the actual dollhouse.
If the house is to be 32.5 inches tall, the height be on the plans will be one-fifth of the actual dollhouse. This will be:
= 1/5 × 32.5
= 6.5 inches
5. Lines s and t intersect as shown in the picture. Which pair of angles are vertical?
A. angle 7 and angle 10
B. angle 9 and angle 10
C. angle 8 and angle 10
D. angle 7 and angle
Answer: angle 7 and angle 10
Step-by-step explanation: trust me its correct
Answer:
The right answer is 9 and 10. It is not 7 and 10 because if you can see one of the arrows for 10 is shorter than the arrow next to it for angle 7.
9 and 10 have one straight line that it is on than both share the short arrow.
Can you anser number 9
Answer:
[tex]x = \frac{367}{3}[/tex]
[tex]y = \frac{173}{3}[/tex]
Step-by-step explanation:
Equations
Let's call
x = measure of angle 1
y = measure of angle 2
The angles are supplementary, thus their sum is 180°:
x + y = 180 [1]
It's also known that one angle (x) is 7° more than twice the other (y), thus:
x = 7+ 2y [2]
Substituting [2} in [1]:
7+ 2y + y = 180
Operating:
7+ 3y = 180
Subtracting 7:
3y = 180 - 7 = 173
Dividing by 3:
[tex]y = \frac{173}{3}[/tex]
And:
[tex]x = 7+ 2*\frac{173}{3}[/tex]
[tex]x = \frac{367}{3}[/tex]
What’s the Slope of the Line Passing Through (2,5) And (-1,8)
Answer:
[tex]\displaystyle m=-1[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (2, 5)
Point (-1, 8)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute [SF]: [tex]\displaystyle m=\frac{8-5}{-1-2}[/tex][Frac] Subtract: [tex]\displaystyle m=\frac{3}{-3}[/tex][Frac] Divide: [tex]\displaystyle m=-1[/tex]Jason and his children went into a grocery store and will buy bananas and mangos. Each banana costs $0.90 and each mango costs $2. Jason has a total of $25 to spend on bananas and mangos. Write an inequality that would represent the possible values for the number of bananas purchased, bb, and the number of mangos purchased, m.m.
Answer:
25 ≥ 0.90b + 2m
Step-by-step explanation:
Given:
Cost of each banana = $0.90
Cost of each mango = $2
Total amount = $25
Find:
Inequality
Computation:
Assume;
Number of banana = b
Number of mango = m
Total amount ≥ Cost of total banana + Cost of total mango
25 ≥ 0.90b + 2m
Answer please: Hector bought 45 tiles to make a patio. How many different ways can he arrange the tiles to make the patio?
(plz answer and plz help!!!! plzzzzzzzzzzzzzzzzzzzzzzzzz!!!)
Answer:
Again, 3.
Step-by-step explanation:
Dylan signed up for a streaming music service that costs $10 per month. The service
allows Dylan to listen to unlimited music, but if he wants to download songs for
offline listening, the service charges $0.75 per song. How much total money would
Dylan have to pay in a month in which he downloaded 10 songs? How much would he
have to pay if he downloaded s songs?
(For deltamath problems)
PLEASE HELP ME ITS DUE NOW
ILL GIVE YOU BRAINIEST
Answer:
I believe it is 17.50$
Step-by-step explanation:
Because 0.75 x 10 = 7.5 + 10 = 17.50$
someone help me please
Answer:
4
Step-by-step explanation:
fdhtrh56
Shelia buys flower bulbs from a catalog $2 each and $4 shipping charge for the whole order. She spends $20 on flower bulbs. The model can be used to describe x, the number of bulbs Shelia can order. Write an equation to determine the number of bulbs Shelia can order. How many bulbs did she order?
Answer:
8 bulbs
Step-by-step explanation:
Step one:
Given data
Shelia buys flower bulbs from a catalog for $2 each and $4 shipping charge for the whole order
we are told that the total money spent is $20
let the number of bulbs ordered be x, and the total money spent be y
the equation for the situation is
y=2x+4
for a total amount of $20, we want to find x
20=2x+4
20-4=2x
16=2x
divide both sides by 2
x= 16/2
x= 8 bulbs
I need help on a slope problem to fine the slope of the line
Answer:
Okay what's the problem?
Step-by-step explanation:
Answer:
if you are given two points, use the equation y2-y1 / x2-x1
if you are given a graph, use rise/run
Step-by-step explanation:
if you have two points, like (4,5) and (6,9), take the second numbers of both pairs (the ys) and subtract them from each other (usually 2nd y minus 1st y), so with these points I would do 9-5
then subtract the first numbers of both pairs (the xs) from each other too (just like the ys: 2nd x minus 1st x), so with these points I would do 6-4
now you have y=9-5 which is 4
and x=6-4 which is 2
now you put 4/2 and simplify it to get 2
so your slope with these points is 2
if you want to find slope on a graph, look at where the line crosses the x/y axis lines, the points where they meet, and look at the distance between each point that it crosses
to find the slope put the rise (vertical change in y between each point) over the run (horizontal change in x between each point) in a fraction like this
rise/run
simplify that and you have your slope
Classify the quadrilateral. Parallel sides are indicated with arrows.
trapezoid
parallelogram
rhombus
rectangle
Answer:
it's a parallelogram
Step-by-step explanation:
hope it helped you..