Answer:
45°
Step-by-step explanation:
(180-90)/2 = 90/2 = 45°
The answer is 45°.
Step-by-step explanation:
Hey there!
Since it is an isoceles triangle two angles must be equal.
Also, one angle is 90°. To find other angles, let's suppose one angle as "X", then next angle is also "X". {Since it is an isoceles triangle}.
Then;
x+x+90° = 180° { Sum of interior angles of a triangle is 180°}
or, 2x + 90° = 180°
or, 2x= 180° - 90°
or, 2x = 90°
or, X= 90°/2
or, X=45°.
Therefore, the other angles are 45° and 45°.
Hope it helps!
Element X is a radioactive isotope such that every 13 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 90 grams, how long would it be until the mass of the sample reached 62 grams, to the nearest tenth of a year?
Answer:
The mass of Element X will reach 62 grams in 7.0 years.
Step-by-step explanation:
We can find the time of decay of Element X by using the exponential decay equation:
[tex] \frac{dm}{dt} = -\lambda t [/tex]
The solution of the above equation is:
[tex]m_{(t)} = m_{0}e^{-\lambda t}[/tex] (1)
Where:
t: is the time =?
λ: is the decay constant
[tex]m_{(t)}[/tex]: is the mass at time t = 62 grams
[tex]m_{0}[/tex]: is the initial mass = 90 grams
First, we need to calculate λ
[tex] \lambda = \frac{ln(2)}{t_{1/2}} [/tex] (2)
Where [tex]t_{1/2}[/tex] is the half-life = 13 years
By entering equation (2) into (1) and solving for "t" we have:
[tex]\frac{m_{(t)}}{m_{0}} = e^{-\frac{ln(2)}{t_{1/2}}*t}[/tex]
[tex]ln(\frac{m_{(t)}}{m_{0}}) = -\frac{ln(2)}{t_{1/2}}*t[/tex]
[tex]t = -ln(\frac{m_{(t)}}{m_{0}})(\frac{t_{1/2}}{ln(2)}) = -ln(\frac{62}{90})(\frac{13}{ln(2)}) = 7.0 y[/tex]
Therefore, the mass of Element X will reach 62 grams in 7.0 years.
I hope it helps you!
Five pumpkins have the following weights: 12 lbs, 15 oz, 9 lbs, 2 lbs, and 96 oz.
Move the weights so they are in order from lightest to heaviest.
What are these weights from lightest to heaviest
Answer:
15, 96, 2, 9, 12.
Find the volume of the given figure.
5
9
8
Answer:
179.996
Step-by-step explanation:
pliss give me the aswer
Answer:
AA
Step-by-step explanation:
AA
Answer:
15+ 8d
After d day,she has read 15 +8d pages
sub duplicate ratio of 4:9
Answer:
sub duplicate ratio of
4:92:3hope it helps
stay safe healthy and happy...PLEASE HELP
Write a recursive formula for each sequence.
1, -2, -2, 4, -8, -32, 256, ...
PLEASE HELP
WILL MARK AS BRAINLISTS
Step-by-step explanation:
1*-2=-2, -2*-2=4, -2*4=-8, -8*-32=256
What is the 1st step in evaluating this expression? 12 divided by (7.4 - 3.6) + 8 -2= *
Answer:
The 1st step in evaluating the expression is doing the equation in the paranthesis. PEMDAS states we do the paranthesis 1st.
3/4 + (1/3 ÷ 1/6) - (-1/2)
Please give answer as a fraction
Answer: 13/4
Step-by-step explanation: it was 3.25 and that as a fraction is 13/4
3/4 + ( 1/3 × 6 ) + 1/2 =
3/4 + 2/4 + ( 2 ) =
3 + 2/4 + 8/4 =
5/4 + 8/4 =
5 + 8/4 =
13/4
HELPP PLZZZ ITS DUE NOW
she can buy 10 cases
Step-by-step explanation:
200-159= 61
61÷5.99 = 10.1
hey! i’ll give brainliest please help
Answer: A would be your answer.
Step-by-step explanation: Internal conflict is when you have a problem with yourself and this means your not intercating with others.
WILL GIVE BRAINLIEST!
Ms. Sally is ordering sets of place-value blocks for the 3rd, 4th, 5th graders. She want one set for each student, and there are 6 sets of blocks in a carton. How many cartons should Ms. Sally order?
3rd grade - 48 students
4th - 43 students
5th - 46 students
6th - 50 students
Answer:
32 cartons
Step-by-step explanation:
Total sets needed
48 + 43 + 46 + 50 = 187
Cartons needed
187 / 6 = 31 1/6
need 32 cartons
Answer:
32 cartons
Step-by-step explanation:
add up all of the students = 187
divide by 6 = 187/6 = 31.16
round = 32 cartons
What is the value of this expression? 27+4×(8−4) Enter your answer in the box.
Answer:
43.
Step-by-step explanation:
Follow PEMDAS (Parentheses, exponents, multiply, divide, add, subtract). First you do 8-4 which is 4, then you multiply 4 by 4 which is 16 since you multiply next, then you add 27 to 16 which then gets you to 43.
P L E A S E A N S W E R A S A P T H A N K S
Answer:
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55
55 divided by 10 = 5.5 around 5
Add all your numbers
Divide by the many numbers there are, go by the exact value or estimate if needed.
im sorry for asking so many questions, but please help
Answer:
x=110˚
Step-by-step explanation:
We need to first find the other degree inside the triangle
first add 45˚ and 65˚
which is 110˚
subtract 110˚ with 180˚
which is 70˚
So we find x since a straight line is 180˚
subtract 70 and 180
which is 110˚
Hoped I helped!
Answer:
110 degrees
Step-by-step explanation:
A triangle is 180 degrees. So if the missing angle is 70, and 70+x=180 then x=110
The triangle pictured below represents a community garden, which is surrounded on
3 sides by a fence. Find the perimeter of the fence.(Please provide Explanation)
A)4
B)62
C)88
D)336
Answer:
88
Step-by-step explanation:
10a-9=14a-25
10a-14a=-25+9
-4a=-16
a=4
10(4)-9+14(4)-25+6(4)+2
40-9+56-25+24+2
88
What is the sum of the 5th cube number and the 4th cube number
find the tangent of angle A (giving brainliest and thanks to all!)
Answer:
Option B, 8 / 6
Step-by-step explanation:
Tangent = Opposite / Adjacent
Tangent of ∠A = Opposite / Adjacent
Tan(A) = 8 / 6 which is the same as Option B
Hope this helps!
find the answer for the question please..
Answer:
44
Step-by-step explanation:
3/4×16=12
12+16(2)=44
Answer:
44 scoops
Step-by-step explanation:
create a proportion of amt of choc syrup to # scoops
1/16 ÷ 1 = 11/4 ÷ s
cross-multiply to get:
s = 16 x 11/4
s = 44 scoops
Rewrite [tex]f(x)=(x+7)^2-9[/tex] in standard form
Quick pls
Answer: f(x)=x^(2)+14x+40
which elevation is higher 8 feet below sea level or 13 feet below sea level
Answer: 8 feet below sea level is higher
Step-by-step explanation:
Solve: 3x + 12 = 39
hurry plzzzz
Answer:
x=9
Step-by-step explanation:
Pretty self explanatory.
8
Which of the following is a composite number between 80 and 100?
OA. 81
OB. 89
OC. 83
OD. 97
Answer:
OA. 81
Step-by-step explanation:
A composite number is a positive integer that can be formed by multiplying two smaller positive integers.
81 = 9 x 9
81 = 3 x 27
need help pls and ty
Answer:
95 square units
Step-by-step explanation:
Area of a triangle formula:
A = 0.5bh
Given:
b = 19
h = 10
Work:
A = 0.5bh
A = 0.5(19)(10)
A = 9.5(10)
A = 95
KLM is isosceles. Calculate the segment EF from the data in the drawing.
HELP!!
Answer:
4.5 cm
Step-by-step explanation:
KL = LM as triangle is isosceles
LM = KM as LF = FM = KN = NM, so the triangle is equilateral
EF ║ NM as LE⊥EF and LN⊥NM
EF is half the midsegment as ∠KLN ≅ ∠MLN, and LN is angle bisector of ∠KLM
Midsegment is half the side length, and all sides are 18 cm.
EF = 1/2(1/2*18) = 4.5 cm
Classify the quadrilateral. Find the missing angle measure(s).
Answer:
the answer is in the picture above
Step-by-step explanation:
and so is the solution pls give branliest if you wish
im really struggling with this, i need A on this test please help me!
Question 2 options:
If XY is 4 m and WZ is 9 m, the exact volume of the cone is ___π square meters.
Answer:
150.8 m³
48π m³
Step-by-step explanation:
V = πr²h/3
V = π · 4² · 9/3
150.8 m³
What term describes the elements that sets have in common in a Venn diagram?
Ellie makes a dot plot using the distances she runs at each track practice. What is the shape of the distribution? Explain your reasoning.
Please help and no websites
Answer:
Right skewed
Step-by-step explanation:
The shape of a distribution could be classed based on the position of the peak and position of the tails formed by the distribution. A distribution is described as being Symmetric if the peak is situated at the middle of the distribution with the tails being evenly spread to the right and left of the peak.
When the peak of the distribution shifts either to the left of right, then we have a skewed distribution. A distribution is said to be right skewed if it has a longer tail to the right while it is left skewed if the loner tail is to the left of the distribution.
The distribution Given above, the tail is longer to the right with the peak in the left. Hence we have a right skewed or positively skewed distribution
Drag the tiles to the boxes to form correct pairs.
Match each operation involving Rx) and g(x) to its answer.
(t) = 1 - 22 and g(x) = V11 — 41
Answer:
[tex](g + f)(2) = \sqrt 3 - 3[/tex]
[tex](\frac{f}{g})(-1) = 0[/tex]
[tex](g + f)(-1) = \sqrt{15}[/tex]
[tex](g * f)(2) = -3\sqrt 3[/tex]
Step-by-step explanation:
Given
[tex]f(x) =1 - x^2[/tex]
[tex]g(x) = \sqrt{11 - 4x[/tex]
See attachment
Solving (a): (g + f)(2)
This is calculated as:
[tex](g + f)(2) = g(2) + f(2)[/tex]
Calculate g(2) and f(2)
[tex]g(2) \to \sqrt{11 - 4 * 2} = \sqrt{3}[/tex]
[tex]f(2) = 1 - 2^2 = -3[/tex]
So:
[tex](g + f)(2) = g(2) + f(2)[/tex]
[tex](g + f)(2) = \sqrt 3 - 3[/tex]
Solving (b): [tex](\frac{f}{g})(-1)[/tex]
This is calculated as:
[tex](\frac{f}{g})(-1) = \frac{f(-1)}{g(-1)}[/tex]
Calculate f(-1) and g(-1)
[tex]f(-1) = 1 - (-1)^2 = 0[/tex]
So:
[tex](\frac{f}{g})(-1) = \frac{f(-1)}{g(-1)}[/tex]
[tex](\frac{f}{g})(-1) = \frac{0}{g(-1)}[/tex]
[tex](\frac{f}{g})(-1) = 0[/tex]
Solving (c): (g - f)(-1)
This is calculated as:
[tex](g + f)(-1) = g(-1) - f(-1)[/tex]
Calculate g(-1) and f(-1)
[tex]g(-1) = \sqrt{11 - 4 * -1} = \sqrt{15}[/tex]
[tex]f(-1) = 1 - (-1)^2 = 0[/tex]
So:
[tex](g + f)(-1) = g(-1) - f(-1)[/tex]
[tex](g + f)(-1) = \sqrt{15} - 0[/tex]
[tex](g + f)(-1) = \sqrt{15}[/tex]
Solving (d): (g * f)(2)
This is calculated as:
[tex](g * f)(2) = g(2) * f(2)[/tex]
Calculate g(2) and f(2)
[tex]g(2) \to \sqrt{11 - 4 * 2} = \sqrt{3}[/tex]
[tex]f(2) = 1 - 2^2 = -3[/tex]
So:
[tex](g * f)(2) = g(2) * f(2)[/tex]
[tex](g * f)(2) = \sqrt 3 * -3[/tex]
[tex](g * f)(2) = -3\sqrt 3[/tex]
Pleaseee helpp!!
Jack manages a café. Each day he buys watermelons and mangoes in the (respective) ratio of 3:2. If on one day he buys 200 mangoes how many water melons would he have bought?
Answer:
300 watermelons
Step-by-step explanation:
3:2 ratio
3 is water melons and 2 is mangoes.
200 mangoes were purchased.
200/2=100
The unit rate is 100, so multiply 3 by 100, which is 300.
So Jack bought 300 watermelons, and 298 of which will be devoured by yours truly.
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hope it helps