Answer:
-2x
Step-by-step explanation:
3-(2x-5)-8=
3+-2x+5-8=
(-2x)+(3+5+-8)=
-2x
sec^2(pi/2 - x) [sin^2(x) – sin^4(x)]
it seems that is wrong.sorry for that.
Which theorem or postulate did you use in Part A?
the pic is part A
Answer:
73
Step-by-step explanation:
the answer is 73 because a parallelogram has to add up to 180.
180-107= 73
write down the inequality for x that is shown on this line
Answer:
Wala po line jan♥️
Evaluate this function at x = 2: f(x)= 3x + 20 *
a.) 23
b.) 36
c.) 26
d.) 30
answer soon pls tyyy!!
Answer:
26
Step-by-step explanation:
Fitst, you substitute
f(2) = 3(2) + 20
f(2) = 6 + 20
f(2) = 26
your answer is 26
Answer:
c.) 26
Step-by-step explanation:
f(2) = 3(2) + 20
f(2) = 6 + 20
f(2) = 26
help!!! it's a circumference problem!
Answer: 69.12
Step-by-step explanation: circumference=2*pi*radius
Answer:
The circumference of the circle is 69.12 m
Step-by-step explanation:
Circumference of a Circle
Given a circle of radius r, the circumference or perimeter of the circle is calculated by the formula:
[tex]C=2\pi\ r[/tex]
The circle shown in the image has a radius of r=11 m, thus the circumference is:
[tex]C=2\pi\ *11[/tex]
[tex]C=22\pi[/tex]
Calculating:
C = 69.12 m
please help me answer this question its urgent
Answer:
Step-by-step explanation:
1). [tex]\frac{2}{3}n-\frac{3}{4}n+\frac{1}{6}n+2\frac{2}{9}n[/tex]
= [tex]\frac{2}{3}n-\frac{3}{4}n+\frac{1}{6}n+(2+\frac{2}{9})n[/tex]
= [tex](\frac{2}{3}-\frac{3}{4}+\frac{1}{6})n+(2+\frac{2}{9})n[/tex]
= [tex](\frac{8}{12}-\frac{9}{12}+\frac{2}{12})n+(2+\frac{2}{9})n[/tex]
= [tex]\frac{(8-9+2)}{12}n+(2+\frac{2}{9})n[/tex]
= [tex]\frac{1}{12}n+(2+\frac{2}{9})n[/tex]
= [tex](\frac{1}{12}+2+\frac{2}{9})n[/tex]
= [tex](\frac{3}{36}+\frac{72}{36}+\frac{8}{36})n[/tex]
= [tex]\frac{83}{36}n[/tex]
= [tex]2\frac{11}{36}n[/tex]
2). [tex]\frac{2}{5}g-\frac{1}{6}-g+\frac{3}{10}g-\frac{4}{5}[/tex]
= [tex](\frac{2}{5}-1+\frac{3}{10})g-(\frac{1}{6}+\frac{4}{5})[/tex]
= [tex](\frac{4}{10}-\frac{10}{10}+\frac{3}{10})g-(\frac{5}{30}+ \frac{24}{30})[/tex]
= [tex](\frac{4-10+3}{10})g-(\frac{5+24}{30})[/tex]
= [tex]\frac{-3}{10}g-\frac{29}{30}[/tex]
= [tex]-\frac{3}{10}g-\frac{29}{30}[/tex]
3). [tex]i+6i-\frac{3}{7}i+\frac{1}{3}h+\frac{1}{2}i-h+\frac{1}{4}h[/tex]
= [tex]7i-\frac{3}{7}i+\frac{1}{2}i+\frac{1}{3}h-h+\frac{1}{4}h[/tex]
= [tex](7-\frac{3}{7}+\frac{1}{2})i+(\frac{1}{3}-1+\frac{1}{4})h[/tex]
= [tex](\frac{98}{14} -\frac{6}{14}+\frac{7}{14})i+(\frac{4}{12}-\frac{12}{12}+\frac{3}{12})h[/tex]
= [tex](\frac{98-6+7}{14})i+(\frac{4-12+3}{12})h[/tex]
= [tex]\frac{99}{14}i-\frac{5}{12}h[/tex]
24. Sam, Sonny and Sal are camping in their tents. If the distance between Sam and
Sonny is 153ft, the distance Sam and Sal is 201ft, and the distance between Sonny
and Sal is 175ft, what is the angle of Sonny's line of sight to both Sam and Sal to the
nearest whole degree?
a. 25°
b. 75°
c. 57°
d. 123°
Answer:
Step-by-step explanation:
Answer:
b. 75°
Step-by-step explanation:
Draw a triangle. Write a person name and a point name (a letter) at each vertex: Sam A, Sonny B, and Sal C at the vertices.
Write the distances as AB = c = 153 ft; AC = b = 201 ft; BC = a = 175 ft.
We are looking for angle B.
Since we have a triangle with three side lengths and no angle measures, we use the Law of Cosines.
[tex] b^2 = a^2 + c^2 - 2ac \cos B [/tex]
[tex] 201^2 = 175^2 + 153^2 - 2(175)(153) \cos B [/tex]
[tex] 40401 = 30635 + 23409 - 53550 \cos B [/tex]
[tex] -53550 \cos B = -13643 [/tex]
[tex] \cos B = \dfrac{-13643}{-53550} [/tex]
[tex] \cos B = 0.254771242 [/tex]
[tex] B = \cos^{-1} 0.254771242 [/tex]
[tex] B = 75^\circ [/tex]
Answer: b. 75°
Multiple Choice
Select all the pairs of ratios that form a proportion.
A. one sixth and four over twenty
B. seven ninths and twenty eight over thirty six
C. fourteen over eighteen and twenty one over twenty seven
D. thirty over eighty and six over eighteen
Answer:
The answer to the question provided is letter b:
[tex] \frac{7}{9} \: and \: \frac{28}{36} [/tex]
THIS IS DUE IN 10 MIN!!
Riley bought a fountain for $14 that was originally priced at $50. What is the discount, as a
percentage?
Write your answer using a percent sign (%).
What is the value of y?
Find the values of x, y, and z.
Answer:
y=25.5°
Step-by-step explanation:
because there's an isosceles triangle, 180-51 = 129
so 129/2 = 64.5, which is X
there is also a right angle so 90-64.5 = 25.5, which is y
Which of the following is a true statement?
Answer:
Step-by-step explanation:
A
Malcolm spent $9.50 on pens, $24 on paper and $11.40 on other supplies for school. He gave the clerk $60.00. How much change should he receive? help asap
Answer:
15.1 $
Step-by-step explanation:
Can anyone pls help me? I will give you brainliest and 5 stars if you are correct.
Answer:
4 kilograms
Step-by-step explanation:
please help me I have been doing this for hours
Answer:
y= [tex]\frac{25}{11}[/tex]x
coordinates: (11,25) (22,50) (33,75)
Step-by-step explanation:
I dont really understand this question but I input the equation into desmos (a graphing website) and that is the equation I got
PLEASE HELPP
I NEED THIS ASAP
Answer:
30+y
Step-by-step explanation:
Answer:
He didn't include a parenthesis around 5+y
Step-by-step explanation:
A sample of radium has a weight of 1.5 mg and a half-life of approximately 6 years.
How much of the sample will remain after 6 years?
mg
Answer:
0.75 mg
Step-by-step explanation:
From the question given above the following data were obtained:
Original amount (N₀) = 1.5 mg
Half-life (t₁/₂) = 6 years
Time (t) = 6 years
Amount remaining (N) =.?
Next, we shall determine the number of half-lives that has elapse. This can be obtained as follow:
Half-life (t₁/₂) = 6 years
Time (t) = 6 years
Number of half-lives (n) =?
n = t / t₁/₂
n = 6/6
n = 1
Finally, we shall determine the amount of the sample remaining after 6 years (i.e 1 half-life) as follow:
Original amount (N₀) = 1.5 mg
Half-life (t₁/₂) = 6 years
Number of half-lives (n) = 1
Amount remaining (N) =.?
N = 1/2ⁿ × N₀
N = 1/2¹ × 1.5
N = 1/2 × 1.5
N = 0.5 × 1.5
N = 0.75 mg
Thus, 0.75 mg of the sample is remaining.
The duration of decay is the same as the half-life of radium, therefore,
half the mass of radium will remain after 6 years.
Response:
The amount of the sample that remains after 6 years is 0.75 mgWhich method is used to find the mass of the radioactive substance, radium, that remains over time?The given mass of the sample of radium, N₀ = 1.5 mg
The half-life of radium = 6 years
Required:
The amount of the sample that will remain after 6 years
Solution:
Let N(t) represent the mass of the sample that remains after 6 years, we have;
[tex]N(t) = \mathbf{N_0 \cdot \left(\dfrac{1}{2} \right)^{\dfrac{t}{t_{1/2}} }}[/tex]
Which gives;
[tex]N(6) = \mathbf{1.5 \times \left(\dfrac{1}{2} \right)^{\dfrac{6}{6} }} = 0.75[/tex]
The amount of the sample of radium that remains after 6 years, N(6) = 0.75 mgLearn more about half-life of radioactive substances here:
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a wave has a wavelength of 3 meters and a frequency of Hz. what is its velocity?
Answer:
V = 3 m/s
Step-by-step explanation:
V= wavelength (meters) x frequency (Hz)
Can anyone please help????
Answer:
A. (3,4)
B (4,2)
C (1/2,1/2)
D (1,2 1/2)
E (1 and 3/4, 4 and 1/4)
Step-by-step explanation: coordinates
What is the missing number?
700,000 + 8 +
+ 40,000 = 740,028
Answer:
700,000+ 8+20+ 40,000
Step-by-step explanation:
All you needed to do was line them up and find the missing value. Or add all of the given numbers and subract the answer. Quite simple actually
Answer:
700,000+40,000+ 20+8= 740,028
20 is the missing number
Determine whether the function given by the table is linear, exponential, or
neither. If the function is linear, find a linear function that models the data; if it is
exponential, find an exponential function that models the data.
Answer:
It's A and the answer is 4^x
Step-by-step explanation:
The exponential function that models the data is f(x) = [tex]4^x[/tex].
What is Function?A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable).
The characteristic that every input is associated to exactly one output defines a function as a relationship between a set of inputs and a set of allowable outputs.
We have a table.
The given function is not a linear because the difference of two consecutive term is not constant.
Now, the ratio
1/(1/12)= 12
12/1= 12
144/12= 12
1728/ 144= 12
If the ratio is same then the function is Exponential.
So, the exponential function is
f(x) = [tex]4^x[/tex]
Learn more about Function here:
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#SPJ2
Name the similar triangles
O AABC - ADET
OLABC - AEDF
AABC-ADFE
AABC - FED
9514 1404 393
Answer:
(d) ΔABC ~ ΔFED
Step-by-step explanation:
All of the answer choices start with ΔABC, so the first-named vertex is the one with no angle marking. In the smaller triangle, that is vertex F.
Only one answer choice matches vertex A with vertex F:
ΔABC ~ ΔFED
Are these triangles similar?
Answer:
not similar
Step-by-step explanation:
Helppp me plsssss pls
Answer:
a
Step-by-step explanation:
because it goes into negaative so its smaller
Answer:
B
Step-by-step explanation:
Look at the way the arrow points. It has a dot on the -3 meaning it could be equal as well. Since it’s going negative, that chooses the way the inequality faces.
Adam can paint 38 feet of fence per hour. How many yards of fence can he paint per hour? 12 yards per hour 456 yards per hour 114 yards per hour 3 yards per hour
Answer:
12.66 yards/hour
Step-by-step explanation:
38 feet/3 feet per yard=12.66 yards
Answer:
12 2/3 is the answer...
Step-by-step explanation:
2347800 in scientific notation
Answer:
2.3478 x 10^6
Step-by-step explanation:
Solve the inequality and graph the solution on the line provided. 8x-11>-27
Answer:
x>-2
on a number line you would put a circle on -2 and draw a line going to the right since x is greater than -2
Step-by-step explanation:
Sissy wants to enlarge a picture of a constellation so that she can put it on the wall in her daughter’s room. What will be the area of the enlarged picture on the wall?
24 in.2
108 in.2
224 in.2
486 in.2
Answer: 486 in
Just did this on edge
The enlargement transformation applied to the rectangular figure gives
a rectangle that is enlarged and similar to the figure.
Correct response:
The area of the enlarged picture is 486 in.²The given dimensions of the picture are;
Height, [tex]\overline{MN}[/tex] = 6 in.
Width, [tex]\overline{LP}[/tex] = 4 in.
The length of QL' = 12 + 42 = 54
By similar triangles, we have;
[tex]\dfrac{\overline{L'P'}}{\overline{LP}} = \mathbf{ \dfrac{\overline{QL'}}{\overline{QL}}}[/tex]
Which gives;
[tex]\dfrac{\overline{L'P'}}{6} = \mathbf{ \dfrac{54}{12}}[/tex]
[tex]\overline{L'P'} = \dfrac{54 }{12} \times 6 = \mathbf{27}[/tex]
Given that an enlargement gives similar figures, we have;
[tex]\dfrac{\overline{L'P'}}{\overline{LP}} = \mathbf{\dfrac{\overline{L'M'}}{\overline{LM}}} = Scale \, factor \ of \ the \ enlargement[/tex]
Therefore;
[tex]\dfrac{27}{6} = \dfrac{\overline{L'M'}}{4}[/tex]
Which gives;
[tex]\overline{L'M'} = \dfrac{27}{6} \times 4 = \mathbf{ 18}[/tex]
The area of the enlarged picture is, A = [tex]\overline{L'M'}[/tex] × [tex]\overline{L'P'}[/tex]
Which gives;
A = 27 × 18 = 486
The area of the enlarged picture on the wall is A = 486 in.²
Learn more about scale factors and enlargement transformation here:
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A spinner is divided into 10 congruent sections. Each section is labeled with a number as shown. The spinner will be spun one time. What is the probability that the arrow will land in a section that is labeled with a number that is a multiple of 2? 1 A U 9 un 6 3 B 1 10 2 09 4 1 1 / 2 UN
Answer:
b
Step-by-step explanation:
Round to the nearest whole percent if necessary. Is the percent of change an increase or decrease? 100 to 150
Answer: 50% increase
Step-by-step explanation:
How do you write 1/12 as a decimal?
Answer:
I think it's 0.083
Step-by-step explanation:
Answer:
0.0833333 (3 is repeating)
Step-by-step explanation:
