Answer:
A. Light elements
Step-by-step explanation:
A science class has 5 girls and 7 boys in the seventh grade and 5 girls and 5 boys in the eighth grade. The teacher randomly selects a seventh grader and an
eighth grader from the class for a competition. What is the probability that the students she selects are both boys?
Write your answer as a fraction in simplest form.
We have a total of 10 boys & 8 Girls, then the sample space consist of 18 elements.
P(selecting 1 boy) = (total number of boys/by 18) = P(boy)=10/18=5/9
please help!! I don't know anything about the unit I'm on and this along with other questions soon would help me so much
Answer:
x + 21 + 33 = 180
x + 54 = 180
x = 126
PLZ BRIANLiest me!!!
Step-by-step explanation:
Find the slope of the line that passes through the pair of points.
(2, -3). (-5, 1)
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Help ksjsjsjs
8th term of 24,20,50/3
Answer: 6.698
Step-by-step explanation:
Answer:
6.698
Step-by-step explanation:
Have a good day :)
An isosceles triangle has a perimeter of 28.12 centimeters. The length of the longest side is 13.08 centimeters. What could be the length of
one of the other sides of the triangle?
A. 3.92 centimeters
B. 7.52 centimeters
C. 11.26 centimeters
D. 15.04 centimeters
Answer:
7.52 cm
Step-by-step explanation:
If we subtract the longest side from the whole perimeter, we get 28.12 - 13.08 = 15.04.
So the other two sides must be equal, since the triangle is isosceles.
That means 15.04 must be divided evenly betweem two sides.
15.04/2 = 7.52
So the 3 sides are 13.08 cm, 7.52 cm, and 7.52 cm.
You check the answer by adding all 3 sides together and we do indeed get the perimeter, 28.12 cm.
Simplify the product
5/n+1*n+1/n+3
5n+1/n^2 + 4n+ 3
5n+1/n^2+4n+3
5/n+3
5n+1/n+3
Answer:
5(n+1)/((n+1)(n+3))
5/(n+3) is a answer
Step-by-step explanation:
(n+1)/(n+1)=1
The solution is, the simplified product of the expression 5/n+1*n+1/n+3 is 5/(n+3) .
here, we have,
given that,
the expression is 5/n+1*n+1/n+3
now, we have to find the simplified product.
as, * means the multiplication,
we get,
5/n+1*n+1/n+3
=5*(n+1)/((n+1)*(n+3))
now, we know that,
(n+1)/(n+1)=1
so, we get,
5*(n+1)/((n+1)*(n+3))
=5*1 /(n+3) *1
=5/(n+3) is a answer
To learn more on product click:
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25 + (98-7) x4 PLEASE HELP
Answer: The answer is 464
Step-by-step explanation:
Bc you do 98-7=91, Then you do 25+91*4, Next Do 25+91=116, Last you 116*4= 389 and If this is wrong use a Calaculator Ok
_ Mhart7109
Escribir la ecuación de la circunferencia de centro (3,4) y radio r = 2
F(x)=-x2-7x-5
Find f(-5)
Answer:
f(-5)=5
Step-by-step explanation:
the "-5" is telling us what to plug in for x. So, the new equation would be:
f(-5)= -(-5)^2-7(-5)-5
if we reduce, the expression would be
-25+35-5
our final answer would be 5.
If AC = 14, what is the measure of AD? Round your answer to the nearest hundredth.
Part A
Answer: Choice D) [tex]\text{AD} = \sqrt{(2n+5)^2+(4n-3)^2}[/tex]
-----------------------------------------------
Explanation:
Let E be the intersection point of the diagonals. For any parallelogram, the diagonals bisect each other. This means that AE = EC = 2n+5 and it also means EB = DE = 4n-3
Focus on triangle AED. This triangle is a right triangle with angle AED as a 90 degree angle (any rhombus has its diagonals that are perpendicular to one another). The legs of this triangle are AE = 2n+5 and ED = 4n-3
Apply the pythagorean theorem to find hypotenuse AD
[tex](\text{leg1})^2+(\text{leg2})^2 = (\text{hypotenuse})^2\\\\(\text{AE})^2+(\text{ED})^2 = (\text{AD})^2\\\\(\text{AD})^2 = (\text{AE})^2+(\text{ED})^2\\\\\text{AD} = \sqrt{(\text{AE})^2+(\text{ED})^2}\\\\\text{AD} = \sqrt{(2n+5)^2+(4n-3)^2}\\\\[/tex]
This points to choice D as the final answer.
===========================================================
Part B
Answer: 7.07-----------------------------------------------
Explanation:
If AC = 14, then half of this is AE = 7. The diagonals bisect each other, so they cut each other in half with E at the midpoint.
Since AE = 2n+5, we can solve for n like so
2n+5 = 7
2n = 7-5
2n = 2
n = 2/2
n = 1
Then we can find the length of AD
[tex]\text{AD} = \sqrt{(2n+5)^2+(4n-3)^2}\\\\\text{AD} = \sqrt{(2*1+5)^2+(4*1-3)^2}\\\\\text{AD} = \sqrt{(2+5)^2+(4-3)^2}\\\\\text{AD} = \sqrt{7^2+1^2}\\\\\text{AD} = \sqrt{49+1}\\\\\text{AD} = \sqrt{50}\\\\\text{AD} \approx 7.0710678\\\\\text{AD} \approx 7.07\\\\[/tex]
Segment AD is roughly 7.07 units long. The other external sides of the rhombus (AB, BC and CD) are also this length because the four sides of any rhombus are the same length.
Jason´s aunt gave to him some money. He could choose between 15% of
$1,500 or 25% of $1,000. Which amount is the better deal for Jason ?
por fa es urgente :((((
Answer:
25% of $1,000
Step-by-step explanation:
.15 * $1,500 = $225
.25 * $1,000 = $250
-3(x - 1) + 9 = 15 find the varible
Answer:
x = -1
Step-by-step explanation:
-3(x-1) + 9 = 15
-3x + 3 + 9 = 15
-3x = 3
x = -1
Answer:
The variable (x) is -1.
Step-by-step explanation:
use the distributive property
-3(x - 1) + 9 = 15
-3x + 3 + 9 = 15
-3x + 12 = 15
-12 -12
-3x = 3
divide by -3
x = -1
8x - 142 = 111 - 3x
Answer:
23
ch ch ch f good first off
someone help me plz!!
Answer: x=15
Step-by-step explanation:
Since these are supplementary angles, we know that if we add them together we would get 180 deg. so....
(7x-10)+ (6x-5)=180
Kay so now we can combine like terms.
13x-15=180
Now we can add 15 to both sides.
13x=195
Finally Divide 13 on both sides.
X would then now equal 15.
Solve the following inequality by factoring
y = -2 + 5 + 6 = 0 ?
Answer:
Y = 9
Step-by-step explanation:
5 + 6 = 11
11 -2
9
Help
Don’t use for points or will be reported and take the points back
Answer:
A
Step-by-step explanation:
bc thats the one that makes more sense to me
Answer:
A
Step-by-step explanation:
It’s a, because equiangular triangle means having an equal angles
If the numerator of a fraction is increased by 3, the fraction becomes 3/4.If the denominator is decreased by 7,the fraction becomes 1. Determine the original fraction.
Answer:
9/16
Step-by-step explanation:
Let the original fraction be
x/y
Then
x+3/y=3/4
and
x/y-7=1
Look at 2nd fraction, rearrange it such that you multiply by "y-7" on both sides
x=y-7
Substitute this into 1st fraction:
x-7+3/y=3/4
Now we can solve this for y: cross-multiply --> (Note: y-7+3 = y-4)
4(y-4)=3y
y=16
Sub this back into "x = y-7" to get x
x=16-7=9
Therefore the original fraction is:
9/16
lus
Solve for x.
x = [?]
2x+16,
4x - 16
Enter
Answer:
i got x= 16/165
Step-by-step explanation:
It's due in 30 minutes!!
Answer:
14 cups = 7 pints
144 cups = 36 quarts
Step-by-step explanation:
Match each percent with the fraction or decimal equivalent
there should be 200g of nuts for every 50g of nuts what will be the amount of fruits if there are 500g of nuts
Answer:
125
Step-by-step explanation:
What integer does the arrow indicate?
-9
-14
-3
6
Answer:
-9
Step-by-step explanation:
The arrow points to an negative number
The arrow points to -9
Answer:
-9
Step-by-step explanation:
-9)llkjsjsjdjdjsjjwjaksk
Simplify [(a⁴b⁵)² ÷ (a⁹b⁷)⁰] ÷ ab²
Answer:
a^5b^8
Step-by-step explanation:
Please help
The slope of a line determines the direction the line is traveling from left to right.
True o false?
Answer:
True
Step-by-step explanation:
The slope both the steepness and the direction of the line
can someone help me with this?
Answer:
p + 10
Step-by-step explanation:
We have an expression
"10 more than the number p"
How will you write the phrase?
The expression "10 more than the number p" shows that whatever amount p is, the total will always be 10 more of value than p. Therefore some type of adding is supposed to be here. Since this unknown value of a number will always be 10 more than p, we can come up to assume that p will be added by 10.
p + 10
Question is the answer someone please help me!!!!
Answer:
Min = 3
Max = 11
First Quartile = 6
Median = 7
Third Quartile = 9
Step-by-step explanation:
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Answer:
Your welcome
Step-by-step explanation:
help with math plsssssssss
Mrs. Rossi's vegetable garden is 11 Ft long and 8 ft wide, next to her flower garden, which is 6 ft by 5 ft. How many square feet of garden does Mrs. Rossi have in all?
Answer:
118ft²
Step-by-step explanation:
11 × 8 = 88
6 × 5 = 30
88 + 30 = 118
good luck, i hope this helps :)
PLEASE HELP WILL GIVE BRAINLIEST AND MAX POINTS!!!
(-8) x [tex]\frac{2}{3}[/tex] =
(-8) x (- [tex]\frac{2}{3}[/tex])
-[tex]\frac{18}{3}[/tex] =
[tex]\frac{18}{-3}[/tex] =
[tex]\frac{-18}{-3}[/tex] =
[tex](-8)*\frac{2}{3} = -\frac{16}{3}[/tex]
[tex](-8)*(-\frac{2}{3} ) = \frac{16}{3}[/tex]
[tex]-\frac{18}{3} = -6[/tex]
[tex]\frac{-18}{-3} = 6[/tex]
What is the answer please help