Answer:
D. 1×10⁻⁸ M
Explanation:
[H⁺] [OH⁻] = 10⁻¹⁴
(1×10⁻⁶) [OH⁻] = 10⁻¹⁴
[OH⁻] = 1×10⁻⁸
Зm — 5n = 11
what is this answer?
Step-by-step explanation:
mn=1/-2
i hope it helps you
At a restaurant, customers can order a hamburger, a cheeseburger, or a chicken sandwich as their main dish. With any of these main dishes they can order a side of french fries, onion rings or a salad . What is the total possible outcomes
How do you solve 3x7x4 using parentheses
Answer:
84
Step-by-step explanation:
Answer:
either (3x7)x4 or (3)(7)(4)
Step-by-step explanation:
Richmond High School has 1900 students and is shrinking by 15 students per year. Write a rule that represents the population at Richmond High School. Let x represent years and y represent population.
Answer:
y = -15x + 1900
Step-by-step explanation:
This is correct because, your base number is 1500, so that is your y-intercept. The school's population is shrinking by 15 students per year so, that becomes your slope. Hope I helped. ;)
(sat prep) find the value of x
Answer:
140 degrees
Step-by-step explanation:
Im only a freshman, but i think i got it, i just assumed that the other small part at the bottom was also 20 degrees, which would mean that you are missing the 140 degrees from the 180 degree line
Answer:
120 degrees
Step-by-step explanation:
The bottom part is 40 degrees,
the two lines are parallel, so theoretically, you can just put them together. Then using vertical angles, you can tell it's 40 degrees.
40 + 20 = 60
180-60 degrees is 120 degrees.
helppp i need help on question 1) b and d
2) d and e
1. b) Factorise ➾ y² - 20y + 100
1. d) Factorise ➾ 48 - 13p - p²
2. d) Factorise ➾ 18y² - y - 4
2. e) Factorise ➾ 4m² - 27m + 18
Solutions:-1. b) y² - 20y + 100
⇝ y² - 10y - 10y + 100 ( Splitting middle term )
⇝ y ( y - 10 ) - 10 ( y - 10 )
⇝ ( y - 10 )(y - 10 ) Ans.
1. d) -p² - 13p + 48
⇝ -p² - 16p + 3p + 48 ( Splitting middle term )
⇝ -p ( p + 16 ) + 3 ( p + 16 )
⇝ ( p + 16 )(3 - p ) Ans.
2.d) 18y² - y - 4
⇝ 18y² - 9y + 8y - 4 ( Splitting middle term )
⇝ 9y ( 2y - 1 ) + 4 ( 2y - 1 )
⇝ ( 2y - 1 )( 9y + 4 ) Ans.
2.e) 4m² - 27m + 18
⇝ 4m² - 24m - 3m + 18 ( Splitting middle term)
⇝ 4m ( m - 6 ) - 3 ( m - 6 )
⇝ ( m - 6 )( 4m - 3 ) Ans.
HOPE IT CAN HELP U : )what is the domain and range for a^x and a^-x?
SIBLE POINTS
The perimeter of the larger rectangle is 2 meters greater than twice the perimeter of the smaller rectangle. What is the perimeter of the larger
rectangle?
3x - 1
x + 1
4x - 5
Х
Answer:
U equal them
Step-by-step explanation:
An divide
Write as a decimal. 7/18 If necessary, use a bar to indicate which digit or group of digits repeats.
Answer:
0.38888888888889
7 divided by 18
Step-by-step explanation:
PLZ HELP ILL GIVE BRAINLIEST PLZZZ
Answer:
8/9
Explanation:
2/9 x 4/1 = 8/9
Use addition to solve the system of linear equations. Include all of your work in your final answer.
Answer: No solutions
Step-by-step explanation:
You can either use substitution or elimination
You can plug in y to the first equation to get x-(x-4)=6 to get 4=6 which is not possible so no solutions
Please show the solving
Step-by-step explanation:
YELLOW TRIANGLE:
[tex] \sin(30) = \frac{x}{12} \\ x = 12 \sin(30) = 6[/tex]
PURPLE TRIANGLE:
Since one of the angle is 45°, x = BC = 6
To prove:
[tex] \tan(45) = \frac{bc}{x} \\ bc = x \tan(45) = 6 \tan(45) = 6[/tex]
PINK TRIANGLE:
[tex] \tan(60) = \frac{bc}{y} \\ y = \frac{bc}{ \tan(60) } \\ = \frac{6}{ \tan(60) } \\ = 2 \sqrt{3} [/tex]
Determine the Value of x,y and z.
Answer:
x=9
y=16
z=12
Step-by-step explanation:
5 g of margarine contains 3.6 g
of fat.
How many grams of fat are
there in 82 g of margarine?
Answer:
59.04g of fat
Step-by-step explanation:
I) Figure out how much grams of fat is in 1g of margarine:
3.6 ÷ 5 = 0.72
II) Next, we can figure out how much fat is in 82 g of margarine:
0.72 × 82 = 59.04
One shot formula:
(3.6g ÷ 5g) × 82g = 59.04g
Why is x = 6 a solution to the proportion 192/36 = 32/x ?
Because if 192/36 = 5.3333 and 32/6 = 5.3333 then the solution is right
Answer:
It is a solution because when you divide 192 by 36 you get 5 and one third. When you divide 32 by 6 you also get 5 and one third. This means they are equal.
Step-by-step explanation:
Find the measure of FG.
Can someone help??
Answer:
28
Step-by-step explanation:
Side FG = Side DG. Therefore, 5x - 17 = 3x + 1, or 2x = 18, or x = 9.
If x = 0 then the length of side FG is 5(9) = 17, or 28.
solve by factorizing x² + 8x + 15 + 0
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GET
Algebra
Factor
Factor the polynomial.
(
x
+
3
)
(
x
+
5
)
Tap to view FREE steps...
()|[]ó
789≤
456/^×>∩∪
123-+÷<π∞
,0.%=
Factor
x
2
+
8
x
+
15
+
0
Regroup terms.
x
2
+
0
+
8
x
+
15
Add
x
2
and
0
.
x
2
+
8
x
+
15
Factor
x
2
+
8
x
+
15
using the AC method.
Tap for fewer steps...
Consider the form
x
2
+
b
x
+
c
. Find a pair of integers whose product is
c
and whose sum is
b
. In this case, whose product is
15
and whose sum is
8
.
3
,
5
Write the factored form using these integers.
(
x
+
3
)
(
x
+
5
)
Answer:
(x+3)(x+5)
Step-by-step explanation:
What is the equation, in point-slope form, of the line passing through the point (8, -3) with a slope of 5?
A ball is thrown into the air from a height of 4 feet at time t=0. The function that models this situation is h(t)=-16t^2+63t+4. What will be the height of the ball after 2 seconds?
Answer:
66 feet
Step-by-step explanation:
We know that the t in the equation represents the time. So, substitute 2 for the t in the function and simplify to find the height after 2 seconds:
[tex]h(t) = -16t^2+63t+4\\h(2) = -16(2)^2+63(2)+4\\h(2) = -16(4)+126+4\\h(2) = -64 + 126+4\\h(2) = 66[/tex]
Thus, the height would be 66 feet.
please helppppppppppppppppppppppppppppp
Answer:
It is exponential
PLSSS HELP ME PLS THIS IS DUE TOMORROWW!!! will mark
3. Fill the blanks to make the equivalent ratios. :9 = 10: 45 a. b. : 3 = 3:9
Answer:
:/
Step-by-step explanation:
Ty decided to invest $600 in an account and was able to take out $670 from the account
after 8 years. The interest in the account was compounded continuously. What was the
interest rate for his account?
The interest rate for his account was r ≈ 1.375% .
A water tank contains 320 litres of water, correct to the nearest 10 litres. 50 litres of water, correct to the nearest litre, are removed from the tank. Calculate the upper bound of the amount of water left in the tank.
Answer:
[tex]N_l=270 litres[/tex]
Step-by-step explanation:
From the question we are told
Total litres of water [tex]N_t=320[/tex]
Total litres removed [tex]N_r=50[/tex]
Generally the Total litres left in the tank N_l is mathematically given as
[tex]N_l=N_t-N_r[/tex]
[tex]N_l=320-50[/tex]
[tex]N_l=270 litres[/tex]
Therefore the total water left in the tank is
[tex]N_l=270 litres[/tex]
For a circle of radius 4 feet, find the arc lengeth, S subtened by a central angle of 26 degrees
Answer:
Exact answer = 26π/45 feet.
or we can write it as 1.815 feet to the nearest thousandth.
Step-by-step explanation:
The circumference of the circle = 2*4*π = 8π feet.
So the length of S = (26/360) * 8π
= 26π/45 feet.
an algebric expression that is true for all types of variable is called
Answer:
An equation that is satisfied for every value of the variable for which both sides of the equation are defined is called an identity. Conditional equations are true for some values of the variable and false for others. Contradictions are false for all values of the variable.
Step-by-step explanation:
15 EASY POINTS.............
Answer:
x³+7x²+14x+8
Step-by-step explanation:
distribute!
(x³+3x²+2x)+(4x²+12x+8)
add the similar values
x³+7x²+14x+8
Answer:
do math
Step-by-step explanation:
Evaluate the expression 4x for x=5.
4x=
= when x = 5.
(Simplify your answer.)
PLEASE HELP I DONT KNOW THIS
Answer:
Exponential Growth
Step-by-step explanation:
The function is increasing and not decreasing. Because the base is greater than 1, the equation represents exponential growth. If the base were to be less than 1, then it would represent exponential decay.
Find the area of the circle. Round to the nearest tenth. Use 3.14 or 22/7 for pie.
5.6 cm
a. 98.5 cm2
b. 8.8 cm2
c. 24.6 cm2
d. 17.6 cm2
Answer:
98.5 cm2
Step-by-step explanation: