Answer:
mark me as brilliant ~_~Step-by-step explanation:
Answer:
7
Step-by-step explanation:
In a mathematics Olympiad, a correct answer is
awarded 3 marks, but a wrong answer is awarded
-1 mark (i.e. 1 mark will be deducted). If no answer
is given, 0 marks will be awarded. Albert took part
in this Olympiad. There were 30 questions. He
answered 17 questions correctly and 5 questions
wrongly. How many marks did he score?
Answer:
So Albert scored = 26 scores it's true and correct ! thank you:)
6th grade math help me pleaseee
Answer:
The 2nd graph
Step-by-step explanation:
The y-intercept of the second graph has a y intercept of 6 and a slope of 3.
Answer:
the second one
Step-by-step explanation:
The one closest to the buttons that say clear and button. Under it.
If cos θ > 0, which quadrant(s) could the terminal side of θ lie?
Answer:
I and IV
Step-by-step explanation:
cosine is positive/greater than 0 in quadrants I and IV. Its just a rule of the unit circle.
Can remember by All Star Trig Class
meaning all the trig funtions are positive in quadrant I
sin is positive in II
tan is positive in III
and cos is positive in IV
Could somebody help please?
Answer:
x = 12
Step-by-step explanation:
9x + 7 and 115 are alternate exterior angles and are congruent, then
9x + 7 = 115 ( subtract 7 from both sides )
9x = 108 ( divide both sides by 9 )
x = 12
Solve the simultaneous equations
x+y=3
y=3x−17
Answer:
x=5 , y=-2
Step-by-step explanation:
rearrange y=3x-17 to -3x+y=-17
then subtract to get x or y
x+y=3
- (-3x+y=-17)
4x=20
x=20/4
x=5
then sub in the x value into one of the equations
for x+y=3
(5)+y=3
y=3-5
y= -2
hope this was helpful bestie ༼ つ ◕_◕ ༽つ
Please help me
Find the volume of a cone with diameter of 12 inches and a height of 15 inches
I need to find the exact volume, approximate volume
Answer:
v=565.48668 or rounded up 565.49
Step-by-step explanation:
I need the answer to this
Answer:
8 Hours
Step-by-step explanation:
Since 4 painters painting one house takes 14 hours, then one person would take 56 hours to paint the whole house. Hence, 4 x 14 = 56. If 7 people painted the house, then 8 hours would be needed since 56 / 7 = 8.
4 people x 14 hours = House
56 hours = House
56 hours is required to paint a house.
7 people x H hours= House
7 people x H hours = 56
(7 people x H hours)/ 7 = 56 / 7
You divide 7 on both sides to isolate H on one side.
H hours = 8
So H = 8 which is the amount of hours needed.
I Hope This Helps :)
Find the area of a regular pentagon
with a side length of 5 cm. Round to
the nearest tenth.
30
Step-by-step explanation:
the real answer is 25 but if we round up to the nearest 10th the answer would be 30
Cynthia invests some money in a bank which pays 5% compound interest per year.
She wants it to be worth over £8000 at the end of 3 years.
What is the smallest amount to the nearest pound, she can invest
Answer:
£6956.52
Step-by-step explanation:
Given data
R=5%
A= £8000
T= 3 years
P=???
The compound interest is
A=P(1+r)^t
8000= P(1+0.05)^3
8000= P(1.05)^3
8000= P1.15
P= 8000/1.15
P=6956.52
Hence she needs to invest £6956.52
The amount of lawns mowed is proportional to the number of hours that Lana works. The equation below represents the proportional relationship between lawns mowed (m) and the number of hours worked (h). M=4h How many lawns can Lana mow each hour?
Answer:
0.25 lawns
Step-by-step explanation:
The computation of the number of lawns each hour is shown below;
M represent the mowed
ANd, number of hours represent h
Also
M = 4h
That means one mowed = 4 hours
So for one hour = 1 ÷ 4 = 0.25 lawns
what is 30+11x-12-6x
In ΔHIJ, the measure of ∠J=90°, the measure of ∠H=84°, and HI = 69 feet. Find the length of IJ to the nearest tenth of a foot.
Answer:
IJ = 68.6 feet
Step-by-step explanation:
In ΔHIJ, the measure of ∠J=90°, the measure of ∠H=84°, and HI = 69 feet. Find the length of IJ to the nearest tenth of a foot.
We solve the above question using the Trigonometric function of Sine
sin x = Opposite/Hypotenuse
x = ∠H=84°
Opposite = IJ
Hypotenuse = HI = 69 feet.
Hence
sin 84 = IJ/69
Cross Multiply
IJ = sin 84 × 69
IJ = 68.62201078 feet
Approximately = 68.6 feet
Answer:
yeeet
Step-by-step explanation:
Mr. Robison rides 136 miles per hour on his bike ride. He wants to ride more than 360 miles at the same rate during his next bike ride. Which inequality represents all possible values for b, the number of hours Mr. Robison must bike to ride more than 360 miles rounded to the nearest hundredths?
Answer: See explanation
Step-by-step explanation:
From the equation, we are informed that Mr. Robison rides 136 miles per hour on his bike ride and that he wants to ride more than 360 miles at the same rate during his next bike ride.
The inequality that represents all possible values for b, the number of hours Mr. Robison must bike will be:
136b > 360
b > 360/136
b > 2.65
Therefore, Me Robinson must bike for more than 2.65 hours
A free diver can dive at a rate of -0.75 meters per second about how long will it take to reach a depth of -145 meters
Answer:
193 seconds
Step-by-step explanation:
For this problem you'll have to divide so do -145÷-0.75 and your answer will be 193 seconds
why are all sequences descrete in math
Answer:
If you collect all the terms of the sequence into a set, that set will always be discrete, because there's only countably many of them, and every interval is uncountable. So you could move outside of natural numbers to real numbers, but then it's no longer a sequence, it's just a function.
Which type of transformation is described by (x, y) (x + 2, Y-3)?
Answer:
I’m good at math but not that good
Step-by-step explanation:
anybody know the answer to 3m -8 + 6m = 37
Answer:
m = 5
Step-by-step explanation:
if you input the equation into M aTh wA y, you get the answer in seconds
what is the answer 3⁻⁶ x (3⁴ ÷ 3⁰)² =
Answer:
9x
3⁻⁶ x (3⁴ ÷ 3⁰)²
3⁻⁶ x (3⁴)²
3⁻⁶ x (3^8)
1/3^6x (3^8)
9x
Can someone please help me? 3t + 7 = -8
Answer:
Step-by-step explanation:
Look at 3%2At%2B7=%28+-8+%29.
Moved these terms to the left %28 +8+ %29
It becomes 3%2At%2B7%2B _green%28+8+%29=0.
Look at 3%2At%2B_red%28+7+%29%2_red%28+8+%29=0.
Added fractions or integers together
It becomes 3%2At% 2B % 28+15+%29=0.
Look at highlight_red%28+3%2At%2B15+%29=0.
Solved linear equation %28+3%2At%2B15=0+%29 equivalent to 3*t+15 =0
It becomes highlight_green%28+0+%29=0.
Result: 0=0
This is an equation! Solutions: t=-5.
Answer: t= -1/3
Step-by-step explanation:
3t+7=-8
subtract 7 from 7 and 8 (this cancels out the 7)
left with 3t = -1
divide 3 into 3t and -1
the 3 in 3t is canceled out, leaving us with t, therefore t= -1/3
t = 19 = 29.....................=
Ewan has a mango farm that is 75 feet X
50 feet, and he also purchases a 20 feet X
10 feet plot of land. Find the total area of
the farm.
Answer:
3950 feet squared
Step-by-step explanation:
So first you have to multiply 75 by 50, so that is 3750.
Next you have to multiply 20 by 10 and you get 200.
Finally you had both 3750 and 200 in order to get 3950 and that is why the total area of the farm is 3950 feet squared.
are the following lines parallel, perpendicular, or neither? y= -4/3x - 5 and y= 3/4x - 5
-14 = 4x - 2
what is the x ?
Answer:
X = -3
Step-by-step explanation:
What is the value of -2(x + 5)?
Answer:
-2x-10
Step-by-step explanation:
hope it hhhhheeeeeellllpppp you
HELP ME!!!PLEASE ITS DUE TODAY!!
Answer:
25quarts of grape juice, 50 quarts of water
Step-by-step explanation:
Do the math
Answer:
You'd need 50 quarts of sparkling water and 25 quarts of grape juice
Step-by-step explanation:
You can make an equation with this.
[tex]75=4/6x+3/4x[/tex]
When you solve for this, you'll get 100/3.
You can then substitute x for 100/3 and get the numbers.
Find the area of the trapezoid 12.5cm 6cm 17.5cm
Answer:
The answer for this is a. 90
pls help! will give brainlist!
What does the slope of the line in the coordinate plane above represent?
A. Distant per unit of speed
B. Time per unit of distance
C. Distant per unit of time
D. Time per unit of speed
Solve: (x – 3)(x – 5) = 35
(hint: first you must distribute; then set your equation equal to zero, then factor, then solve.
Posting again because no one answered correctly
Please help
Answer:
x=10, x=-2
Step-by-step explanation:
x^2-5x-3x+15=35
x^2-8x-20=0
Multiply to -20, add to -8: -10, 2
(x-10)(x+2)=0
x=10, x=-2
Answer:
x = −2 or x = 10
Step-by-step explanation:
(x - 3)(x - 5) = 35
x^2 − 8x + 15 = 35
x^2 − 8x + 15 − 35 = 35 − 35
x^2 − 8x − 20 = 0
(x+2)(x−10) = 0
x + 2 = 0 or x − 10 = 0
x = −2 or x = 10
I hope this helps! May I please have brainliest? :)
determine the slope and y-intercept from following the equation: y= 3/2x + 3
Answer:
Slope is 3/2 and y-intercept is +3
Step-by-step explanation:
slope = m
y intercept = b
Slope is 3/2 and y-intercept is +3
Write the equation of the line with a slope of -5/4 and a y-intercept of 2.
a) y=1/4x+2
b) y=2x-5/4
c) y=-1/4x+2
d) y=-5/4x+2
Answer:
D, y=-5/4x+2
Step-by-step explanation:
the slope always comes before "x", and the y-intercept comes last when written in slope intercept. So y=-5/4x+2 is correct.