Answer:
x=19º
x+9=28º
7x=133º
Step-by-step explanation:
x+9+x+7x=180
9x+9=180
9x=180-9
9x=171
x=19
Answer:
Bottom left angle is 19°
Bottom right angle is 28°
Top angle is 133°
Step-by-step explanation:
Since all angles of a triangle add up to 180° we know x + 7x + x+9=180. then we combine like terms to get 9x+9=180. Next, we do inverse operation to find X. First subtract 9 from both sides of the equation to get 9x=171 then divide 9 from both sides to get x=19. No that we know x, we can find the values of the angles by putting in 19 for x. Bottom left angle is 19°, bottom right angle is 28°, top angle is 133°.
Setting 7/3 equal to which ratio would result in a valid proportion? 9/49 18/42 42/18 49/9
2. What is the probability that the third strike comes on the seventh well drilled?
Answer:
about a 5% chance
Step-by-step explanation:
That is, there is about a 5% chance that the third strike comes on the seventh well drilled.
A truck and carry a load of 5000 pounds assuming that it can be cut to fit how many feet of steel beam in Winx 32.6 pounds can the truck carry
About 153 Winx. Because 5000 divided by 32.6 is 153.374233129.
pls dont pwm . will mark brainliest✌
Answer:
Option A
Step-by-step explanation:
We know that the "3x ? 2" line must be positive, so it cannot be C or D. The other line is negative, so the "2x ? 5" line must be -2x. This gets rid of option B, leaving us with our answer of A!
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Use approximations to 1 significant figure , check that your answer to part A ) makes sense
Translate: 20 more than a number is 55.
Answer:75
Step-by-step explanation:55+20=75
Find cotθ, cosθ, and secθ, where θ is the angle shown in the figure.
Give exact values, not decimal approximations.
Answer:
[tex] \cos( \theta) = \frac{5}{8} \\ {8}^{2} = {5}^{2} + {opp}^{2} \\ {opp}^{2} = 64 - 25 = 39 \\ opp = \sqrt{39} \\ \sin(\theta) = \frac{\sqrt{39}}{8} \\ \tan(\theta) = \frac{ \sqrt{39} }{5} \\ \cot(\theta) = \frac{1}{\tan(\theta)} = \frac{1}{\frac{ \sqrt{39} }{5}} \\ \cot(\theta) = \frac{5}{ \sqrt{39} } \\ \csc( \theta) = \frac{1}{\sin(\theta)} = \frac{1}{\frac{\sqrt{39}}{8}} \\ \csc( \theta) = \frac{8}{ \sqrt{39} } \\ \sec( \theta) = \frac{1}{\cos( \theta) } = \frac{1}{ \frac{5}{8} } \\ \sec( \theta) = \frac{8}{5} [/tex]
For given angle [tex]\theta[/tex],
[tex]\bold{cot(\theta)=\frac{5}{6.24}}\\\\ \bold{cos(\theta)=\frac{5}{8}}\\\\ \bold{sec(\theta)=\frac{8}{5}}[/tex]
What is cosine of angle?In a right triangle, for angle Ф
cos(Ф) = adjacent side of angle Ф / hypotenuse
What is sine of angle?In a right triangle, for angle Ф
cos(Ф) = opposite side of angle Ф / hypotenuse
What is secant of angle?In a right triangle for an angle Ф,
sec(Ф) = 1 / (cos(Ф))
What is cotangent formula for an angle Ф?In a right triangle for an angle Ф,
cot(Ф) = cos(Ф) / sin(Ф)
What is Pythagoras theorem?For a right triangle,
[tex]c^2=a^2+b^2[/tex]
where 'c' represents the hypotenuse
'a' and 'b' be the other two sides of the right triangle
For given example,
The adjacent side of [tex]\theta[/tex] is 5 and the hypotenuse is 5.
[tex]\bold {cos(\theta)=\frac{5}{8}}[/tex]
We find the opposite side of the angle [tex]\theta[/tex] using Pythagoras theorem.
Let 'x' be the opposite side of the angle [tex]\theta[/tex] .
By Pythagoras theorem,
[tex]\Rightarrow 8^{2} =x^{2} + 5^{2}\\\\ \Rightarrow x^{2} =64-25\\\\ \Rightarrow x=\sqrt{39}\\\\ \Rightarrow x=6.24[/tex]
So, the opposite side of the angle [tex]\theta[/tex] is 6.24 units.
[tex]sin(\theta)=\frac{6.24}{8}[/tex]
So, the value of [tex]cot(\theta)[/tex] would be,
[tex]\Rightarrow cot(\theta)=\frac{cos(\theta)}{sin(\theta)}\\\\\Rightarrow cot(\theta)=\frac{\frac{5}{8} }{\frac{6.24}{8} } \\\\\Rightarrow \bold{cot(\theta)=\frac{5}{6.24}}[/tex]
Now we find the value of [tex]\bold{sec(\theta)}[/tex]
[tex]\Rightarrow sec(\theta)=\frac{1}{cos(\theta)}\\\\\Rightarrow sec(\theta)=\frac{1}{\frac{5}{8} }\\\\ \Rightarrow \bold{sec(\theta)=\frac{8}{5}}[/tex]
Therefore, for given angle [tex]\theta[/tex],
[tex]\bold{cot(\theta)=\frac{5}{6.24}}\\\\ \bold{cos(\theta)=\frac{5}{8}}\\\\ \bold{sec(\theta)=\frac{8}{5}}[/tex]
Learn more about cotθ, cosθ, and secθ here:
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help please. thank you very much
Answer: Offer B because it will cost less.
Step-by-step explanation: Hope this helps :)
Help me please i am stuck
Answer: Angel observes a marble travel along a horizontal path at a constant rate. The marble travel 2/3 of the length- of the path in 50 seconds. At that rate, how many seconds does it take the object to travel the full length?
Step-by-step explanation: First, reason down from 2/3 to 1/3. Enter all values as fractions (proper or improper) or whole numbers. You will need to convert mixed numbers to improper fractions.
The price of a watch was $115 when it was launched last year. When a new version of the watch was released this year, the price of the earlier version of the watch decreased by 15%. Find the price of the earlier version of the watch this year.
Answer:
$97.75
Step-by-step explanation:
115 times 0.85
5) How many turkeys will be eaten on Thanksgiving Day?
First Guess = __________
Average Turkey Weight = 27 pounds
Number of Americans = 328 million
Amount needed per person = 1.5 pounds
Percent of Americans that eat turkey on Thanksgiving = 91%
Mathematical Estimate = __________ (Show your work)
Answer: mathmatical estimate 46 million
Step-by-step explanation:
456million first guess
7. What is the value of the expression?
3/4 divided by 1/2
Answer:
3/4 / 1/2
3/4 * 2/1
6/4
1 2/4
1 1/2 or 1.5
Determine if the ordered pairs represent a function.
{(1,5), (2,7), (3,9), (4,7)}
(yes or no)
Answer: No
Step-by-step explanation:
There's no noticeable pattern.
Alexa used some ribbons to make 4 headbands and a bracelet. She used 4.95 cm of ribbon for each head band and 4.24 cm for the bracelet. How many centimeters of cloth did she use altogether?
Answer:
24.04 cm
Step-by-step explanation:
each headband uses 4.95cm and each bracelet uses 4.24cm.
4 headbands * 4.95 cm = 19.8cm
1 bracelet * 4.24 cm = 4.24 cm
19.8 cm + 4.24 cm = 24.04 cm
Angie has 12 3/4 yards of fabric to make Halloween costumes. Each fabric costume requires 7/8 yards of fabric. How many costumes can Auntie make?
Since Angie has 12 3/4 yards of fabric and all and each costume requires 7/8 yards, you can divide 12 3/4 by 7/8.
12 3/4 ÷ 7/8
= 51/4 ÷ 7/8
= 51/4 • 8/7 (remember that dividing by a fraction is the same thing as multiplying by it’s reciprocal)
= 51/1 • 2/7 (after simplifying)
= 102/7
= 14 4/7
Angie can make 14 costumes. She cannot make the 15th one because she’ll run short of fabric.
Christopher buys 1/2 pounds of cheese for $3.60. How much would it cost per pound of cheese?
Answer:
$7.20
Reasoning:
[tex]\frac{1}{2} * 2=1[/tex]
[tex]3.60*2=7.20[/tex]
5/6 divided by 2 fhdhdgfgghhhhhggggu
I need help with my questions
Answer:
1) (-A+B)=(B-A) is true
Step-by-step explanation:
I am guessing you are looking for which statement is true. The answer is 1, (-A+B)=(B-A), as the others are incorrect.
2) A x 0 = 0, not 1
3) - (-A) = A, not - A
4) A/B will not be the same as B/A unless the values of A and B are 1
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Hey! I really need help on scale drawings and it would be AWESOME if you could help me but show me how you got it. Thanks!
Answer:
I hope this helps!!!
Step-by-step explanation:
just multiply 3 by 3 = 9, which means the length will be 9.
multiply 1 by 3 = 3, which means the width will be 3.
lastly count the spaces it is from the edge and multiply it by 3 since the scale factor is three
Please take a look at the picture. Please write your answer with an explanation.
Answer:
30
Step-by-step explanation:
= 170 + 15 - 5 (3+16) - 64 + 4
= 170 + 15 - 95 - 64 + 4
= 30
Is Y=x-3 and x-y=8 parallel perpendicular or neither
how many sixteenths are there in 1\4
Answer:
There are 4 sixteenths in one-fourth
Step-by-step explanation:
how many sixteenths are there in 1\4?
There are 4 sixteenths in one-fourth
1/4 : 1/16 =
1/4 * 16 =
4
If X || Y and Y || Z, then
Answer:
X || Z
Step-by-step explanation:
Step-by-step explanation:
well, what does your own logic tell you ? just think logically.
of course it is X || Z.
what else could it be ?
this is similar to questions like
if A > B, and B > C, then what does that say about A and C ?
right, A > C.
same thing for A=B, B=C, then A=C.
but it does not work with every relationship. so, be careful and just use basic logic - but that you will have to use.
Calculaţi c.m.m.d.c. și c.m.m.m.c. al numerelor: 18; 120; 30; 450.
anser is
Step-by-step explanation:
618 is the answer
Which fraction is equivalent to 3/6
Answer:
If you wanted to simplify, 3/6 can become 1/3
Step-by-step explanation:
[tex]\frac{3}{6}[/tex] ÷ [tex]\frac{3}{3}[/tex] = [tex]\frac{1}{3}[/tex]
ABCD is a parallelogram.Find angle CBD.
9514 1404 393
Answer:
81°
Step-by-step explanation:
Opposite angles of a parallelogram are congruent. The sum of the two angles at B is the same as the value marked at D.
∠CBD = 139° -58° = 81°
_____
Additional comment
The angles at A and C are both 41°, the supplement of the one marked 139°.
The lifespans of seals in a particular zoo are normally distributed. The average seal lives 13.8 years; the standard
deviation is 3.2 years.
Use the empirical rule (68 - 95 - 99.7%) to estimate the probability of a seal living less than 7.4 years.
Answer:
67.715
Step-by-step explanation:
(68 - 95 - 99.7%)
why is 25/25 larger than 25/38
Answer:
Cause 25/25 is a whole number and 25/38 is not
Step-by-step explanation:
Emergency plz help me !!
Oh boyy--
The slope intercept form is : y= 5x+17
URGENT I REALLY NEED THIS DONE, IM GIVING OUT 30 POINTS!
Determine if XY is tangent to circle Z.
A.) Yes
B.) No