Answer:
x=-2
Step-by-step explanation:
-8x+7x=-4-2
x=-2
From the picture, we see that this boils down to finding the length of a side of a right triangle. The angle that we know about is 45^ and we know that the length of the side adjacent to the angle is 100 feet. We want to know about the length of the side that is opposite to the angle.
The tangent of an angle alpha is the ratio of the length of the opposite side to the length of the adjacent side
tan45^=x/100
1=x/100
x=100
So, the river is 100 feet across.
Now answer the following question(s).
1. Name the trigonometric ratios that was/were used to evaluate the width of the river?
2. List the most common units angles can be measured in.
Answer:
its should 2
Step-by-step explanation:
Calvin works at a clothing store. He sells 3 pairs of jeans for $66.49 each, 2 shirts $28.99 each, and a belt for $15.40. He also gives a refund for a coat that a customer returned for $89.95. What is the net change in the amount of money for the store?
Answer: 182 / 182.9
Step-by-step explanation:
199.47 +57.98 + 15.40 - 89.95
3 x 66.49 = 199.47
2 x 28.99 = 57.98
since there was only one for the belt and the coat there is no problems for that.
add and subtract all of that and you get 182 or 182.9
i did the problem on my own and then checked it on a calculater. although if it isnt right im very sorry
Answer:
182
Step-by-step explanation:
Determine the number of real solutions there are for 9x2 - 12r + 18 = 0.
A. no real solutions
B. I real solution
C. 2 real solutions
D. 3 real solutions
E. not enough information
Answer:
A. No real Solution
Step-by-step explanation:(1): "x2" was replaced by "x^2".
(32x2 - 12r) + 18 = 0
9x2 - 12r + 18 = 3 • (3x2 - 4r + 6)
3x2 - 4r + 6
3 • (3x2 - 4r + 6) = 0
3 = 0
Select all ordered pairs that satisfy the function
y=2/3x + 1
A. (-3,-1)
B. (-2,-1)
C. (3, 3)
D. (5, 6)
Answer:
its D
Step-by-step explanation:
The ordered pairs that satisfy the function y = 2/3x + 1are (-3,-1) and (3,3)
How to determine the ordered pairs?The function is given as:
y = 2/3x + 1
Next, we test the options
(a) (-3,-1)
This gives
-1 = 2/3 * -3 + 1
Evaluate
-1 = -1 --- this is true
(b) (-2,-1)
This is false because -1 = -1 is true in (a)
(c) (3,3)
This gives
3 = 2/3 * 3 + 1
Evaluate
3 = 3 --- this is true
(d) (5,6)
This gives
6 = 2/3 * 5 + 1
Evaluate
6 = 4.3 --- this is false
Hence, the ordered pairs are (-3,-1) and (3,3)
Read more about linear equations at:
https://brainly.com/question/14323743
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Write an expression that describes the length of a rectangle given that the width is 2z and the area is 16z^2 - 10z^2 + 2z
Answer:
3z + 1
Step-by-step explanation:
Area = 16z^2 - 10z^2 + 2z = 6z^2 + 2z = 2z(3z + 1)
Width = 2z
Area of a rectangle is given as:
Area = length × width
hence length = Area/Width
= 2z(3z + 1)/2z
= 3z + 1
Help me with this Math pleaseee
answer:
a.
explanation:
im sure its a.
hope this helped <3 also if wouldn't mind could you pls give me brainliest? (im trying to level up) thanks! :)
Adrian needs to be at school at 7:45 am. It takes him 15 minutes to walk to school, 512 hour to eat breakfast, 0.7 hour to get dressed, and 0.15 hour to shower. What time should he wake up.
Correct question:
Adrian needs to be at school at 7:45 am. It takes him 15 minutes to walk to school, 5/12 hour to eat breakfast, 0.7 hour to get dressed, and 0.15 hour to shower. What time should he wake up.
Answer:
Adrian should wake up by 6.14 am
Step-by-step explanation:
Given;
time to walk to school, = 15 mins
time to eat breakfast = 5/12 hour = 25 mins
time to get dressed = 0.7hour = 42 mins
time to shower = 0.15 hour = 9 mins
time Adrian needs to be in school = 7.45 am
Count from this time he needs to be at school backwards by subtracting the time he will spend before reaching school;
7.45 am - 15 mins = 7.30 am
7.30 am - 25 mins = 7.05 am
7.05 am - 42 mins = 6.23 am
6.23 am - 9 mins = 6.14 am
Therefore, Adrian should wake up by 6.14 am
A rectangle has length 6 and height 4. Which of these would tell you that quadrilateral ABCD is definitely not similar to this rectangle? Select all that apply.
Answer:
1) AB=BC
2) m∠ABC=105∘
3) AB=8
4) BC=8
5) BC=2⋅AB
Step-by-step explanation:
A rectangle has length 6 and height 4.
Which of these would tell you that quadrilateral ABCD is definitely not similar to this rectangle? Select all that apply.
1) AB=BC
2) m∠ABC=105∘
3) AB=8
4) BC=8
5) BC=2⋅AB
6) 2⋅AB=3⋅BC
Answer:
A rectangle is a quadrilateral (has four sides). Opposite sides of a rectangle are equal to each other and the diagonals bisect each other. Also, each of the angles in rectangle measure 90°.
1) AB = BC
Opposite sides of a rectangle are equal, hence AB is opposite to CD and BC is opposite to AD. Therefore:
AB = CD, BC = AD
AB ≠ BC
2) m∠ABC = 105°
Each of the angles in a rectangle measure 90°, therefore m∠ABC = 90°. m∠ABC ≠ 105°
3) AB = 8
AB might be the length or height of the rectangle, hence:
AB = 6 or AB = 4. AB ≠ 8
4) BC = 8
BC might be the length or height of the rectangle, hence:
BC = 6 or BC = 4. BC ≠ 8
5) BC = 2AB
If BC is the height = 4, BC ≠ 2AB
6) 2AB = 3BC
If AB is the length of the rectangle and BC is the height of the rectangle then:
2(6) = 3(4)
12 = 12
2AB = 3BC
1/3x+y=4 solve for y
simplify the expression :
(2 + 3p) (2) =
please help
without finding any other angles or sides congruent, determine which pair of triangles can be probed to be congruent by the HL theorem
Answer:
YXZ and NMO
Step-by-step explanation:
The HL (hypotenuse leg) theorem says that if the hypotenuse and one leg of one right triangle is congruent to the hypotenuse and one leg of another right triangle, the 2 triangles are congruent.
Therefore, we can see that the only 2 triangles that can be guaranteed to be congruent are triangles YXZ and NMO.
what is the lcm of the numbers 26 and 65
Answer:
its 130
Step-by-step explanation:
Mrs. Dillard is installing a cubed swimming pool in her backyard. The hole that her husband dug in her backyard is 216 feet cubed. She went to the pool store to pick out a pool frame. She chose a pool frame that had a length, width, and height of 7ft. Will the pool frame she choose fit into the 216 foot cubed hole? If so, explain, if not what dimensions much she buy for the pool frame to fit?
Answer: No. The pool frame she choose will not fit into the 216 foot cubed hole. She should have picked a frame of 6ft.
Step-by-step explanation:
From the question, we are informed that Mrs. Dillard is installing a cubed swimming pool in her backyard and that the hole that her husband dug in her backyard is 216 feet cubed.
We are further told that she went to the pool store to pick out a pool frame. She chose a pool frame that had a length, width, and height of 7ft.
Since the height is 7ft, the volume will be: = 7ft × 7ft × 7ft = 343 feet cubed.
This shows that the pool frame she choose will not fit in the hole dug. She should have picked a frame of 6feet since (6ft × 6ft × 6ft) = 216 ft cubed.
A local little league has a total of 80 players, of whom 40% are right handed. how many right handed players are there?
Answer:
32
Step-by-step explanation:
PLS HELP ME I WILL GIVE BRAINLYEST
Answer:
C
Step-by-step explanation:
2 * 3 is 6
4 * 3 is 12
8 * 3 is 24
Answer:
C
Step-by-step explanation:
2,6 4,12 and 8,24 are all simplified to the fraction 1/3 so the relationship is proportional.
Also in each of the x column every number is always three times the amount.
Hope this helps! :) Plz mark as brainliest
Name the angle pair relationship AND find the value of x.
Answer:
Corresponding and x = 5
Step-by-step explanation:
To solve for x set the two equations equal to each other
5x+23 = 7x+13
10 = 2x
x = 5
The density curve below represents the number of minutes Joseph spent getting dressed for school each
morning this past school year.
which of the following statements are true?
Answer: C) the height of the density curve is 0.5
Step-by-step explanation: Khan academy
Answer:
A & B
Step-by-step explanation:
Got it right
What is the greatest common factor (GCF) of 528 and 720?
Select one:
A. 18
B. 24
C. 36
D. 48
Answer:
D.48
Step-by-step explanation:
Angle A and B are supplementary angles. If A= 7x + 7 and B = 4x -14, find the measure of B.
Answer: mB=54
Step-by-step explanation:
Find x using 7x+7+4x-14=180. Use x in 4x-14 to find b.
The answer to the question is b=54
Explain why f(x-4) shifts to the right, while f(x+3) shifts to the left
Answer:
It is just because f(9x-4) is a subtraction so it goes to the right.
Then the f(x+3) is addition so it goes to left.
Step-by-step explanation:
It is like the opposite of their signs the adding is left, and the subtraction is right.
How many zeros are in the product 30 × 10 power of 5
Answer:
6 zeros
Step-by-step explanation:
30 x 10^5
using P.E.M.D.A.S
you do exponents first
10^5 = 100000
then 100000 x 30 = 3000000
and there is 6 zeros
Cup o' Coffee buys its coffee for $1.25 a cup. The coffee shop then sells each cup for $3.75. What is the percent markup for a cup of coffee?
Answer:
47%
Step-by-step explanation:
.375 × .125 = .046875
rounding up, 5 keeps the 7 as is, 7 is greater than 5, therefore the 8, becomes a 9, 9 is greater than 5, so the 6 becomes a 7, .047.
move the decimal three digits to the left and you get, 47%.
Percentage markup is the percent of the difference of the selling price to the buying price of a product. The percent markup for a cup of coffee is 200%.
The percentage markup has to be find out for the cup of coffee.
What is percentage markup?Percentage markup is the percent of the difference of the selling price to the buying price of a product. It can be given as,
[tex]M=\dfrac{\rm SP-C}{C} \times 100[/tex]
Here, [tex]SP[/tex] is the selling price and [tex]C[/tex] is the cost of the product.
Given information-
The Cup o Coffee buys its coffee for $1.25 a cup.
The Cup o Coffee sells its coffee for $1.25 a cup.
To find out the percentage markup for the cup of coffee, put the values in the above formula. Thus,
[tex]M=\dfrac{3.75-1.25}{1.25} \times 100\\M=\dfrac{2.5}{1.25} \times 100\\M=200[/tex]
Hence the percent markup for a cup of coffee is 200%.
Learn more about the percentage markup here;
https://brainly.com/question/26085685
You might need: Calculator
How many solutions does the following equation have?
4(y - 30) - 4y + 12
Choose 1 answer:
А
No solutions
Exactly one solution
Infinitely many solutions
Answer:
Infinite solutions
Step-by-step explanation:
After you distribute, you get -108. The equation doesn't have an equal sign, but I don't think that matters. For every possible value of y, you get the answer -108, so the answer is either infinite solutions, or no solutions, depending on what you are trying to get the equation to equal to.
If it's a typo, and the negative is supposed to be an equal sign, the answer is no solutions.
You are at the grocery store buying meat for a BBQ that you are hosting. The meat packets are 10.25 pounds each. If you buy 6 of those packets, how many pounds of meat will you end up buying?
Answer:
61.50 pounds
Step-by-step explanation:
10.25 x 6
What is the value of x?
Answer:
if i had to guess i would say 30. but not sure
Identify the slope and the y-intercept of the line written as
L
y + 7 = ] (x + 1)
) m =
6, point: (7, 1)
m = 5, point : (-1, -7)
m = 5, point : (-7,-1)
m =
6, point : (1, -7)
Answer:
m=1/6, point: (-1,-7)
Step-by-step explanation:
the point slope form is y-y1=m(x-x1) and m is the slope and x1 is 1 and y1 is -7 so it will be y-(-7)=1/6(x-(-1)) then when you simplify it, it will be y+7=1/6(x+1)
please help! humanities. ❤️
Answer:
On top of old Smo-key all cov-ered with snow
Answer:
I would personally go with the last option, On Top of Old Smo - key all cov -ered with snow
Step-by-step explanation:
I believe this is correct because In English, there are unstressed, and stressed syllables which are generally indicated in several ways. In traditional english poetry, this generally has to do with the concept of rhythm in a metric line which is a measurement of small groups of sylables called feet established by the words in the line. This is all formed by an iambic meter which is a metrical pattern in the line of a verse or a set of sentences. This method is known as Scansion.
PLEASE HELP ME OUT!!
The question is in the image below next to the blue x
Answer:
y=3x +5
Step-by-step explanation:
Bella wants to purchase a t-shirt for $14.89. She knows that sales tax is an additional 5%, or , of the price. To find the exact amount of the sales tax, she should multiply the purchase price by
Answer:
she should multiple by 1.05 and you will get the correct answer
solve
sin θ = 4 cos θ
Answer:
θ=arctan(4) or 75.96°
Step-by-step explanation:
sinθ=4cosθ (given)
sinθ/cosθ = 4cosθ/cosθ (divide both sides by cosθ)
sinθ/cosθ = 4 (cancel cosθ)
tanθ=4 (sin/cos is equal to tan)
θ=arctan(4)(transposing tan will give you arctan)
θ=75.96 (calculation will give you this)
