Answer:
-2 degrees per hour
Step-by-step explanation:
Rate of change = -3 1/2 / 1 3/4
= -7/2 / 7/4
= -7/2 * 4/7
= -28/14
= - 2
3.1 = k - 1.9 solve for k
If DE = 4x+10 and EF= 2x-1 and DF = 9x-15 find DF
Answer:
89
Step-by-step explanation:
show your work
Common difference of the arithmetic sequence -6,-13,-20
Answer:
-7
Step-by-step explanation:
-13 - (-6)
=> -13 + 6
=> -7
So Common Difference = -7
How do write 5,248,663,711 in words
Answer:
Five billion, two hundred forty-eight million, six hundred sixty-three thousand, seven hundred eleven.
if 3/4 part of the distance between two places is 45 km find the distance between the places.
Let distances be x
ATQ
[tex]\\ \rm\hookrightarrow \dfrac{3}{4}x=45[/tex]
[tex]\\ \rm\hookrightarrow \dfrac{3x}{4}=45[/tex]
[tex]\\ \rm\hookrightarrow 3x=45(4)[/tex]
[tex]\\ \rm\hookrightarrow 3x=180[/tex]
[tex]\\ \rm\hookrightarrow x=\dfrac{180}{3}[/tex]
[tex]\\ \rm\hookrightarrow x=60[/tex]
Please help with questions 4,5 and 6!
Answer:
Step-by-step explanation:
4) ∠CTB , ∠PTA are vertical angles
If sum of two angles add up to 90, then they are Complementary angles.
If sum of two angles add up to 180, then they are Supplementary angles.
∠FTA and ∠ATR are supplementary angles
5) ( 1 , 2 ) & (3 , 6)
[tex]Midpoint=\left(\dfrac{x_{1}+x_{2}}{2},\dfrac{y_{1}+y_{2}}{2}\right)[/tex]
[tex]= \left(\dfrac{1+3}{2},\dfrac{2+6}{2}\right)\\\\=\left(\dfrac{4}{2} \ , \dfrac{8}{2}\right)[/tex]
[tex]\=\left(\dfrac{4}{2},\dfrac{8}{2}\right)[/tex]
= (2 , 4)
6) Distance = [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]
[tex]=\sqrt{(3-1)^{2}+(6-2)^{2}}\\\\=\sqrt{2^{2}+(4)^{2}}\\\\=\sqrt{4+16}\\\\=\sqrt{20}\\\\= 4.47[/tex]
a rectangular field has a length of 485 meters and a width of 155 meters how much would it cost to fence the field at £14 a meter
Answer:
£17920
Step-by-step explanation:
total length of the field = 2(155+485) = 1280m
cost = 1280 * 14 = 17920
what is x when the tangent of 25 equals x over 11?
Answer:
x = 5.12938423
Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable.
Please help !!! Whoever gets the best straight forward answers gets full points PLEASE THIS IS DUE TONIGHT
Step-by-step explanation:
this the solution hope it is helpful for you
The price of a printer is $349.00, plus 6% sales tax. What is the sales tax on this printer in dollars and cents?
The sales tax on this printer is $20.94
What is sales tax?A sales tax is a consumption tax imposed by the government on the sale of goods and services.
Given that, the price of a printer is $349.00 having a 6% sales tax.
Sales tax = 6% of $349.00
$349.00 x 0.06 = $20.94
Hence, the sales tax on this printer is $20.94
For more references on sales tax, click;
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wats 10 to the 2nd power divied by 5 to the 2nd power
Answer:
4
Step-by-step explanation:
10^2/5^2
Do the exponents first
10 to the 2nd power is 100
5 to the 2nd power is 25
100/25
100 divided by 25 is 4
So the answer is 4
Hope this helps!
15 man can do a piece of work in 80 days . If 5 man are added, how long will it take to ccomplete same piece of work.
60 CHALLENGE The Queen Isabella Memorial Bridge connects South Padre Island, Texas, to
Port Isabel on the mainland. Suppose one crew began building from South Padre Island,
and another crew began building from Port Isabel. The two crews met 6256.5 feet from the
South Padre Island side of the bridge approximately 2.5 years after construction began.
a. Suppose the South Padre Island crew built an average of 208.5 feet per month.
Together the two crews built 12,513 feet of bridge. Determine the average number of
feet built per month by the Port Isabel crew.
307
b. About how many miles of bridge did each crew build?
c. Is this answer reasonable? Explain.
2,513
With some give information, we need to solve some algebraic problems that involve a change of units, lets see step by step how we do that:
A) First, we know that:
The bridge was constructed in 2.5 years
Knowing that 1 year = 12 months, we can rewrite:
2.5 years = (2.5)*(12 montsh) = 28 months
The two crews built, together, 12,513 ft of the bridge.
Now, we know that the South Padre Island crew built an average of 208.5 per month.
Then in the 28 months for the whole construction, they built 28 times that amount:
D = (28 months)*(208.5 per month) = 5,838 ft
Then the rest was constructed by the Port Isabel Crew.
They constructed 12,513 ft - 5,838 ft = 6,675ft
So that crew constructed 6,675 ft in 28 months, then the average number of feet built per month (the quotient between the total amount built and the number of months in which that was built) is:
6,675 ft/28 months = 238.39 ft per month.
b)
South Padre Island crew constructed 5,838 ft
Port Isabel Crew constructed 6,675ft
Now we want to transform these to miles.
Remember that;
1 mille = 5280 ft.
Then to transform from ft to miles, we just need to divide our measures by 5280 ft
Then:
South Padre Island crew constructed 5,838 ft = (5,838ft/5280ft) mi = 1.11 mi
Port Isabel Crew constructed 6,675ft = (6,675ft/5280ft) mi = 1.26 mi
c) Is this answer reasonable?
Mathematically, yes, both crews constructed about the same in about the same time, with a small difference that may be related to the sizes of each crew or something like that.
We could conclude that this would not be reasonable if the monthly rates were dramatically different.
If you want to learn more, you can read:
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calculate a length of a square ground of perimeter 160m
You have to evaluate
3³+11-10÷2×4=w
Answer:
18
Brainliest, please!
Step-by-step explanation:
3^3 + 11 - 10 / 2 x 4 = w
27 + 11 - 10 / 2 x 4 = w
27 + 11 - 5 x 4 = w
27 + 11 - 20 = w
38 - 20 = w
w = 18
which expression is equivalent to 2•2 3 •8
Answer:
2^7
Step-by-step explanation:
2 * 2^3 *8
Rewriting 8
8 = 2^3
2 * 2^3 * 2^3
We know that a^b * a^c = a^(b+c)
2^1 * 2^3*2^3
2^(1+3+3)
2^7
geometry help pls
How do you say DE = FG?
can someone explain why
Answer:
first option
Step-by-step explanation:
congruency has its own symbol and it's a ~ top of a = sign. and the expression doesn't have the symbol. so we can eliminate two options out meaning it's a.
The correct answer would be an option (A) the measure of segment DE is equal to the measure of segment FG.
What are congruent triangles?Two triangles are said to be congruent if their corresponding sides and angles are equal.
SSS stands for Side-Side-Side criterion. According to this, two triangles are congruent if three sides of a triangle are equal to the corresponding sides of the other triangle.
SAS stands for Side-Angle-Side criterion. According to this, two triangles are congruent if the two sides and the included angle of one triangle are equal to the corresponding sides and the included angle of the other triangle.
Given that, DE = FG
Congruency is represented by its own symbol, which is a ~ sign on top.
Here, Segment FG's measure is equal to segment DE's measure.
There is no symbol assigned to the expression. Since two possibilities are no longer an option, it must be Option (A).
Hence, the measure of segment DE is equal to the measure of segment FG
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What’s 3.7 as a mixed number
Answer:
3.71 = (3.7 × 10)(1 × 10) = 3710.
Step-by-step explanation:
This fraction is alread reduced, We can't reduce it any further). As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 3710 is also equal to 3710 when expressed as a mixed number.
if you buy a 5 bananas for 3 dollars how much is one
1.6667
that's the answer cause I said so
18. The cost of a television set recently increased from $160 to $200. What was the percent of increase in the price?
(A) 25
(B) 20
(C) 1/4
(D) 1/5
(E) 40
Answer:
25%
Step-by-step explanation:
Take the new price and subtract the original price
200-160
40
Divide by the original price
40/160
1/4
.25
Change to percent form
.25 *100%
25%
At the beginning of March, a store bought a leather couch at a cost of $960.70 and marked it up 20%. At the end of the month, the leather couch had not sold, so the store marked it down 25%. What was the discounted price? Submit
Answer: $864.63
Step-by-step explanation:
First find the original price. Write 20% as the decimal 0.20 before using it in the equation.
price
= cost+mark-up
= 960.70+0.20×960.70
= 960.70+192.14
= 1,152.84
The original price was $1,152.84.
Now find the discount price. Write 25% as the decimal 0.25 before using it in the equation.
discount price
= original price–discount
= 1,152.84–0.25×1,152.84
= 1,152.84–288.21
= 864.63
The discount price was $864.63.
can someone ans it correctly plz
Answer:
It's BGH or the 4th option
Step-by-step explanation:
This is because they aren't adjoined
-2z² + 4z + 2z² = ?
Can someone please explain how to do this?
Answer:
4z
Step-by-step explanation:
-2z² + 4z + 2z²
Combine like terms
-2z^2 + 2z^2 +4z
0z^2 +4z
4z
[tex]\\ \sf\longmapsto -2z^2+4z+2z^2[/tex]
Combine like. variables[tex]\\ \sf\longmapsto -2z^2+2z^2+4z[/tex]
[tex]\\ \sf\longmapsto (-2+2)z^2+4z[/tex]
[tex]\\ \sf\longmapsto 0z^2+4z[/tex]
[tex]\\ \sf\longmapsto 4z[/tex]
Please help me I’m struggling! I’ll give a brainliest!!
Collinear points lie on the same line. Find the value of k for which the following points are collinear: (k,3), (-3,2), (-1,1)
Answer:
k=-5
Step-by-step explanation:
For the points to be collinear any two pair must have the same slope
We find the slope of the 2nd and 3rd points
=1-2/-1--3
=-1/2
Now finding the slope of the 1st and any other point say point 3
1-3/-1-k=-½
-2/-1-k=-½
-4=-1(-1-k)
-4=1+k
k=-4-1
k=-5
PROOF
if the first point is (-5,3)
slope of point 1 and 2
=2-3/-3--5
=-1/2
Decide whether the represents a rational number or an irrational number. Explain how you know without simplifying.
The
represents
▼
an irrational number.
a rational number.
This is because the number
is
▼
a rational number
an irrational number
and the number
is
▼
an irrational number.
a rational number.
The of
▼
a rational number and an irrational number
two irrational numbers
two rational numbers
is
▼
an irrational number.
a rational number.
2 1/3 + 6 3/5
Adding the fraction
I SPENT 40 POINTS ON THIS QUESTION. PLEASE ANSWER!!!!!
Answer:
Here is your answer . hope it helps.
how can i solve this equation
Answer:
D. -1.44 and 2.44
Step-by-step explanation:
[tex]f(x) = 2 {ax}^{2} + (3 - b)x + 7[/tex]
is equal to:
[tex]g(x) = (a - 1) {x}^{2} + 2bx + 7[/tex]
•◇•◇○◇•◇•
➡️ [tex] - 2 {x}^{2} + 2x + 7 = 0[/tex]
➡️ [tex]Δ = {b}^{2} - 4ac = 4 - 4 \times 7 \times ( - 2) = 60 = \sqrt{Δ} = 7.746[/tex]
➡️ [tex]x = \frac{ - b± \sqrt{Δ} }{2a} = \frac{ - 2± 7.746}{ - Δ} [/tex]
➡️ [tex] x_{1} = \frac{ - 2 + 7.746}{ - 4} = - 1.44[/tex]
➡️ [tex] x_{2} = \frac{ - 2 - 7.746}{ - 4} = 2.44[/tex]
On Saturday, you bowl at Mar vista Bowl, where renting shoes costs $2 and each game bowled is $3.50. On Sunday, you bowl at Pinz where the shoe rental is $5 and each game bowled is $3.25. If you spent the same amount each day, how many games,g, were bowled?
Answer:
12 gamesStep-by-step explanation:
Let the number of games is g
Total cost at Mar Vista:
3.5g + 2Total cost at Pinz:
3.25g + 5Since same amount spent in both places, we have:
3.5g + 2 = 3.25g + 53.5g - 3.25 = 5 - 20.25g = 3g = 3/0.25g = 12Answer:
12
Step-by-step explanation:
Let the game be x
3.5x + 2 = 3.25x + 5
3.5x - 3.25x = 5 - 2
0.25x = 3
x = 3/0.25
x = 300/25
x = 12
Mrs. Perez has 28 students and 5/7of those students participate in school sports. How many of Mrs. Perez's
students participate in school sports?
To solve this problem, use multiplicatio
of Mrs. Perez's students participate in school sports.
Answer:
perez has 28 student . and , according to this questions ,5 / 7 of those student participants in school sports.Thus 20 students participate in school sport .