Answer:
about 4 out of 10
Step-by-step explanation:
Probabilities are used to determine the chances of events
The probability that two boys are selected is 0.1517
The given parameters are:
Boys = 12
Girls = 18
Total = 30
Given that the selection is without replacement, the probability that two boys are selected is:
p = 12/30 * 11/29
So, we have:
p = 0.1517
Hence, the probability that two boys are selected is 0.1517
Read more about probability at:
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If the RADIUS of a circle is 9 meters, then the DIAMETER is? *
25 points
4.5 meters
12 meters
18 meters
27 meters
Quadratic in standard form: 6x^2 -5x-4
Answer:
Factor by grouping.
(2x+1)(3x−4)
Step-by-step explanation:
Identify the slope (m) given the equation of the line.
y- 1 = -3(x + 2)
I need help please
One of the legs of a right triangle measures 2 cm and its hypotenuse measures 18 cm.
Find the measure of the other leg. If necessary, round to the nearest tenth.
Answer:
17.9
Step-by-step explanation:
Plz help I’ll give brainliest! Look at MN on the coordinate plane.
What is the distance between the endpoints of MN?
A. 5 units
B. 8 units
C. 6 units
D. 10 units
Please help due today
Answer:
3 & 1
6 & 2
9 & 3
12 & 4
Step-by-step explanation:
Hope that helps!
Sandra is buying new carpet for the floors of her house. The cost depends on the area of the floors. Which is the dependent variable, and which is the independent variable?
A. The dependent variable is the cost, and the independent variable is the area of the floors.
B. The dependent variable is the number of walls in the house, and the independent variable is the cost.
C. The dependent variable is the cost, and the independent variable is the number of walls in the house.
D. The dependent variable is the area of the floors, and the independent variable is the cost.
Answer:
A.The dependent variable is the cost, and the independent variable is the area of the floors.
Step-by-step explanation:
Because I had a quiz with the same question and got it right, and because the paragraph says "The cost depends on the area of the floors."
Answer:
A.
Step-by-step explanation:
"The cost depends on the area of the floors"
The independent variable is the cause and the dependent variable is the effect. Took the test.
i have to find the value of x please help me will give brainliest to correct answer
Answer:
C. x = 5
Step-by-step explanation:
48 = 7x + 13
-13 -13
35 = 7x
5 = x
The height, h, of an object that is projected straight downward from a ledge 500 feet above the ground with initial velocity 10 feet per second is given by the equation h = 500 - 10t - 16t^2 where t = time in seconds. After how many seconds will the object be 100 feet above the ground?
A. 2.21 seconds
B. 3.85 seconds
C. 4.70 seconds
D. 40 seconds
I need help this is extremely hard
Answer:
what variable do you want to find?
Step-by-step explanation:
Choose the correct simplification of (5xy^7)^2(y^2)^3.
Answer:
25x^2y^20
Step-by-step explanation:
3 ve 4 ün ortak katları acil cevap lütfen
Jama works for ABC, pays 1/5 of his social service salary, 1/10 of his rent, 3/5 of his children's education with $ 1800 left, and attends night classes at university and earns $ 500.
produce all his wages?
what's the answer to 9 x (-6)=
Answer:
-54
Step-by-step explanation:
a positive times a negative is a negative always
Answer:
Answer: -54
Multiply them and add a negative symbol
Sam wants a television.He can either buy or rent it.The cost of buying it is $960.Sam would pay a deposit of 30% followed by 12 equal month after payments.
1)Calculate the deposit. 2)Calculate each monthly payment.
Answer:
1. deposit = $288
2. monthly payments = $56
Step-by-step explanation:
960 x 0.3 = 288
960 - 288 = 672
672/12 = 56
what is volume of a trapezoid prism?
Answer:
If the prism length is L, trapezoid base width B, trapezoid top width A, and trapezoid height H, then the volume of the prism is given by the four-variable formula: V(L, B, A, H) = LH(A + B)/2. In other words, multiply together the length, height, and average of A and B.
Step-by-step explanation:
Find the value
of 6y^2 - 24y - 51 when y=-2
Answer:
21
Step-by-step explanation:
6(y^2) - 24y -51 = 6 4 - 24y - 51
(6 4) - (24y) - 51 = 24 - -48 - 51
(24 - -48) - 51 = 72 - 51
72 - 51 = 21
A designer lamp costs £475
It is reduced by 30% in a sale
How much does the lamp now cost?
Answer:
$332.50 is the new discounted price
Step-by-step explanation:
30% of 475
30/100 x $475. 00
= $142.50
$475.00-$142.50=$332.50
and thats the answer
A store owner buys a sweater at $12 and sells it for $15. What was the
percentage of the price increase?
Answer:
it would be a 25% increase.
Step-by-step explanation:
15-12 / 12 * 100 =
3/12 * 100 = 25
A triangular prism has a base edges 2cm, 4cm, and 5cm long. It’s lateral area is 231cm . What is the height of the prism
Answer:
For your specific problem, h = 300 / (4 + 5 + 6) = 300 / 15 = 20
please help i need this rn. no spammers please.
Answer:
x = -6 & y= 42
Step-by-step explanation:
I hope this helps :)
x = 6, y = -42
Substitution:
-7x = -5x - 12
-2x = -12
x = 6
When x = 6,
y = -7(6) = -42
Work out (5.32 x 10^-7): (2.5 x 10^-5)
Give your answer in standard form
Answer:
1.33×10^-6
Step-by-step explanation:
5.32 x 10^-7= 5.32×10^(-5-2)= 5.32×10^-2×10^(-5)
=0.0532×10^-5
(0.0532×10^-5) (2.5 x 10^-5)
0.0532×2.5 × 10^-5
0.133×10^-5= 1.33×10^-1 ×10^-5
1.33×10^-6
0.02128 is the standard form of 5.32 x 10⁻⁷/2.5 x 10⁻⁵
What is Number system?A number system is defined as a system of writing to express numbers.
The given fraction is 5.32 x 10⁻⁷/2.5 x 10⁻⁵
Simplify using exponent rule with same base
[tex]a^{m} a^{n} =a^{m+n}[/tex]
Now 5.32/2.5×10⁻⁷×10⁵
5.32/2.5×10⁻⁷⁺⁵
Calculate the sum or difference
5.32/2.5×10⁻²
Convert fraction into decimal
2.128×10⁻²
Express in standard form 0.02128
Hence, 0.02128 is the standard form of 5.32 x 10⁻⁷/2.5 x 10⁻⁵
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Solve each system of equations using the substitution method
Give the solution in (x,y) form
Step-by-step explanation:
y=-3+5x
substitute y into equation 2
3x-8y=24
3x-8(-3+5x)=24
3x+24-40x=24
x=0
y=-3+5(0)
y=-3
(x,y)=(0,3)
Can somebody help me. Will mark brainliest.
Write a story that can be represented by the equation
y=x+ 1x
Slope is -2 and (1,4) What is the equation of the line in point slope form?
Solve for X when......................
Answer:
-2 2
3 0
-1 -5
Step-by-step explanation:
-2 + 0 = -2 -5 + 7 = 2
1 + 2 = 3 0 + 0 = 0
3 + (-4) = -1 - 4 + (-1) = -5
Determine the common factors and HCF for each of the following terms.
b) 2b, 3b
e) 5bc, 2c2, 3cd
f) 4a2b, 8b2c, 6bcd
Help please and explanation..
Answer:
b) b
e) c
f) 2b
Step-by-step explanation:
you look for numbers that can divide them all at once
Which statement(s) describe perpendicular lines? Choose ALL that apply.
A. Perpendicular lines never meet or cross.
B. Perpendicular lines form a 90 degree angle.
C. Perpendicular lines intersect.
Which of the following is a function?
Answer:
i think the last one
Step-by-step explanation:
Evaluate x2 when x =5
Answer:
10
Step-by-step explanation:
If x=5 then
Plug in the x
(5)2 then multiply
(5)2=10
