Answer:
3/5
Step-by-step explanation:y
put in slop intersect form y=3/5x + 2/5 = 3/5
The seventh term of an arithmetic progression is equal to twice the fifth term. The sum
of the first seven terms is 84. Find the first term.
Answer:
a₁ = - 24
Step-by-step explanation:
The n th term of an AP is
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Given a₇ = 2a₅ , then
a₁ + 6d = 2(a₁ + 4d) = 2a₁ + 8d ( subtract 2a₁ + 8d from both sides )
- a₁ - 2d = 0 → (1)
The sum to n terms of an AP is
[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] [ 2a₁ + (n - 1)d ]
Given [tex]S_{7}[/tex] = 84 , then
[tex]\frac{7}{2}[/tex] (2a₁ + 6d) = 84
3.5(2a₁ + 6d) = 84 ( divide both sides by 3.5 )
2a₁ + 6d = 24 → (2)
Thus we have 2 equations
- a₁ - 2d = 0 → (1)
2a₁ + 6d = 24 → (2)
Multiplying (1) by 3 and adding to (2) will eliminate d
- 3a₁ - 6d = 0 → (3)
Add (2) and (3) term by term to eliminate d
- a₁ = 24 ( multiply both sides by - 1 )
a₁ = - 24
Plz help! Are they right? The questions are below!
Answer:
I believe the first one is correct, not so sure about the other one.
Step-by-step explanation:
Find the two sets coordinates for each graph
Answer:
a.) (0,2)
b.) (0,-1)
Step-by-step explanation:
hopefully this is correct, im pretty sure...
what are the common factors of 42 and 28
A.1,2,4,7,14
B. 1,2,6,7,14
C. 1,2,4,6,7,14
D. 1,2,7,14
Need help ASP
B 1,2,6,7,14
okay
okay
It’s asking me to solve for z...Can someone please explain how I can workout this problem?
Answer:
12°
Step-by-step explanation:
Step 1:
7z + 6° = 90° Def. of Right Angle
Step 2:
7z = 84° Subtract 6° on both sides
Step 3:
z = 84° ÷ 7 Divide
Answer:
z = 12°
Hope This Helps :)
Work out the product of 2⅔ and 3¾
Answer:
[tex]6\frac{5}{12}[/tex]
Step-by-step explanation:
[tex](\frac{8}{3} * \frac{4}{4} )+(\frac{15}{4} * \frac{3}{3} )[/tex] - so they have the same denominator
[tex](\frac{32}{12} + \frac{45}{12} )\\\\ \frac{32+45}{12} \\\\\frac{77}{12} \\\\[/tex]
What is the slope of the line whose equation is y-4=5/2(x-2)
Answer:
m=5/2
Step-by-step explanation:
To find the slope, use the formula y=mx+b. m is the slope. The line with the equation y-4=5/2(x-2) gives us a slope of m=5/2. Hope it helps!
Find the mean of:
1.8,1.7,1.3,1.1,1.2,1.6,1.8
Answer:
A.1.6
Step-by-step explanation:
put them in order
1.1, 1.2, 1.3, 1.6, 1.7, 1.8, 1.8
theirs seven numbers cross out the lowest numbers n the highest numbers and you should get 1.6
find the distance between points (2, 9) and (5, 4) to the nearest tenth
Answer:
[tex]Distance = 5.8[/tex]
Step-by-step explanation:
[tex]d=\sqrt{(4-9)^{2} } { (5-2)} ^{2} \\[/tex]
[tex]d = -5^{2} + 3^{2}[/tex]
[tex]d= 25 + 9[/tex]
[tex]d= \sqrt{34}[/tex]
[tex]distance = 5.8[/tex]
A triangle has angle measurements of 80°, 90°, and 10°. What kind of triangle is it?
acute
right
obtuse
Answer:
Right.
Step-by-step explanation:
It has a 90 degree angle, so that automatically makes it a right triangle.
6. Claire buys DVDs online. Each DVD that she orders costs $15 and shipping for her order is $10.
Claire can spend no more than $100. How many DVDs can she buy?
Answer:
5 dvds
Step-by-step explanation:
15 per dvd
15x+10 and then it has to be less then 100
Jens wanted to go fishing. He went to the
store and purchased the following items,
3 fishing lures at $4.49 each
4 floats at 794 each
12 Leuters at 23¢ each
Nhat was the total bill before tax?
QUESTION 1: what was the total bill before tax?
QUESTION 2: Write an mathematical expression to show how to calculate the total bill before tax. use a calculator to find the value of your expression.
Answer:
Question 1: The total cost before tax is $47.99
Question 2: cant help ya there, not that smart sorry..
Step-by-step explanation:
Answer:
I'm just answering this for the points haha
What are the common factors of 18 and 42
A. 1,2,3,6,9
B. 1,2,3,6,18
C. 1,2,3,6
D .1,3,6
Solve for x.
y=(2 + x)m
Answer:
x = [tex]\frac{y-2m}{m}[/tex]
Step-by-step explanation:
Given
y = (2 + x)m ← distribute parenthesis by m
y = 2m + mx ( subtract 2m from both sides )
y - 2m = mx ( divide both sides by m )
[tex]\frac{y-2m}{m}[/tex] = x
4 in.
5 in.
2 in.
4 in.
5 in.
5 in.
Answer:
I need to see the whole question but I believe you just add the numbers
A tree surgeon reduces the height of a beech tree by 32%.
The tree is now 4.42 m tall.
How tall was it before it was reduced?
Answer:
55
Step-by-step explanation:
4.42 x 32%
Felix used place value and the distributive property to rewrite the expression 9(278). His work is shown below. 9(278) = 9(200 + 70 + 8) What should Felix do to find the product? Select all that apply. Multiply 9(200) and multiply 70(8). Multiply 9(200), 9(70), and 9(8). Multiply 9(200) and then add (70 + 8). Distribute the 9 to each addend. Find the sum of (1,800 + 630 + 72).
Step-by-step explanation:
Distributive property is as follows :
a(b+c) = ab + ac
Felix used place value and the distributive property to rewrite the expression 9(278).
Place value of 278 = 200 + 70 +8
He has done like : 9(278) = 9(200 + 70 + 8). Now, the steps are as follows :
9(278) = 9(200 + 70 + 8)
= 9(200)+9(70)+9(8)
= 1800 + 630 +72
= 2502
Hence, option (d) "Distribute the 9 to each addend. Find the sum of (1,800 + 630 + 72)" should be the correct answer.
Answer:
its B D and E
Step-by-step explanation:
If cheese costs $5.65 per pound, what will be the total cost of 2.2 pounds of cheese? plz help meee
Find the value of x. Then find the measure of each labeled angle.
Answer:
x = 109°
The angle at the bottom right corner = 71°
Step-by-step explanation:
Linda watched a video. The introduction is 2 minutes, and the video is 7 minutes. What percentage of the video is the introduction? Explain.
Answer:
22.222222%
Step-by-step explanation:
all together the entire video is 9 min and 2 of those are the intro so 2/9 and that as a percent is the answer
Answer: 22.23% (Infinitely Long)
Step-by-step explanation:
9 = 100%
9 (100%) - 7 (77.78%) [Also Infinitely Long] = 2 (22.23%) [Infinitely Long]
There ya go. :)
Match the following items.
1 .
proper fraction
fraction in which the numerator is smaller than the denominator
2 .
numerator
a number with a whole number part and a fractional part
3 .
improper fraction
fractions that have the same numerical value
4 .
mixed number
fraction in which the numerator is larger than the denominator
5 .
equivalent fractions
part of the fraction below the fraction bar
6 .
denominator
part of the fraction above the fraction bar
[tex]\bold{Hello!}\\\bold{Your~Answer~Is~Below!}[/tex]
______________________________
[tex]\bold{Terms:}[/tex]
[tex]1.)~Proper~Fraction:[/tex]
[tex]\bold{Fraction~in~which~the~numerator~is~smaller~than~the~denominator.}[/tex][tex]\bold{Ex:\frac{9}{10} }[/tex][tex]2.)~Numerator:[/tex]
[tex]\bold{Part~of~the~fraction~above~the~fraction~bar.}[/tex][tex]\bold{Ex:\frac{7}{y} }[/tex][tex]3.)~Improper~Fraction:[/tex]
[tex]\bold{Fraction~in~which~the~numerator~is~larger~than~the~denominator.}[/tex][tex]\bold{Ex: \frac{13}{2} }[/tex][tex]4.)~Mixed~Number:[/tex]
[tex]\bold{A~number~with~a~whole~number~part~and~a~fractional~part.}[/tex][tex]\bold{Ex: 6\frac{1}{2} }[/tex][tex]5.)~Equivalent~Fractions:[/tex]
[tex]\bold{Fractions~that~have~the~same~numerical~value.}[/tex][tex]\bold{\frac{1}{2}=\frac{2}{4} }[/tex][tex]6.)~Denominator:[/tex]
[tex]\bold{Part~of~the~fraction~below~the~fraction~bar.}[/tex][tex]\bold{Ex: \frac{x}{6}}[/tex]______________________________
[tex]\bold{Hope~this~helps,}\\\bold{And~best~of~luck!}\\\\\bold{~~~~~~~-TotallyNotTrillex}[/tex]
Answer:
proper fraction
fraction in which the numerator is smaller than the denominator 8/12
numerator part of the fraction above the fraction bar
improper fraction in which the numerator is larger than the denominator
mixed number a number with a whole number part and a fractional part
equivalent fractions fractions that have the same numerical value
denominator part of the fraction below the fraction bar
In Europe, the speed limits on the highways are posted in kilometers per hour. In the United States, the speed limits are posted in miles per hour. What is the equivalent rate of 65 miles per hour in kilometers per hour?
PLEASE HELP ME OUT I ONLY HAVE 5 MIN TO TURN THIS IN!!!
WILL MARK BRAINLIEST!!!
Write an equation in slope-intercept form for the line that passes through the given point and is perpendicular to the graph of the given equation.
Equation: y-intercept of 1, 3x – y = 5
Answer:
The equation is [tex]y=-\frac{1}{3}x+1[/tex]
Step-by-step explanation:
You have the y-int, so you just need to find the slope, which is the negative reciprocal of A/B since it is perpendicular. Plugging in the numbers gets you the above equation.
What is the domain of the graph below
A department store buys snow boots from a supplier for s dollars. The store manager decides on a 33% markup.find the retail price of snow boots, when the department store pays $20 to the supplier for each pair of snow boots?
Answer:
$26.60
Step-by-step explanation:
A generator turns __?____ energy into ___?____ energy
A.Coiled wire
B.Negative wire
C.Positive wire
D.Handle that can spin
E.Light bulb
Chose two answers to place on the sentence
Help asap
Andy drove 840 miles in 12 hours. How far could he drive in 1 hour?
Answer:
70
Step-by-step explanation:
Divide 840 by 12 and you get 70 miles.
Hey, he's speeding! I should give him a ticket.
Can I have brainlliest?
Hope it helped.
Left after party and you want to split it into four pieces what fraction of the original cake is each slice? A) 1/8. B) 1/4. C) 1/2. D) 2/1
Answer:
1/4
Step-by-step explanation:
because you are spitting it into fourths
Answer:
1/8
Step-by-step explanation:
It costs $7.20 for 6 large candy bars. How many candy bars can you buy for $13.20?
Answer:
11
Step-by-step explanation:
I divided 7.20 and 6 and got 1.2 so i did 13.20 divided by 1.2 and got 11
Answer: You can buy 11 candy bars.
Step-by-step explanation:
$7.20 =6
$7.20/6 =$1.20
$13.20/$1.20=11
what is 96-4.5y-3.2y=5.6y+42.80
PLEASE HELP!!!!