Answers
Step-by-step explanation:
[tex]\huge\mathcal\blue{here's \: your \: solution} \\ \\ x = 2y - 14 \: \: \: (given) \\ \\ equation \: = 5x - 7y = - 43 \\ \\ now \: put \: the \: value \: of \: x \: in \: equation \\ \\ 5(2y - 14) - 7y = - 43 \\ \\ 10y - 70 - 7y = - 43 \\ \\ 3y - 70 = - 43 \\ \\ 3y = + 70 - 43 \\ \\ 3y = 27 \\ \\ y = 27 \div 3 \\ \\ y = 9 \\ \\ now \: put \: the \: value \: of \: y \: in \: equation \\ \\ x = (9 \times 2) - 14 \\ \\ x = 18 - 14 \\ \\ x = 4 \\ \\ \huge\mathfrak\red{hope \: it \: helps..}[/tex]
Related Questions
Find the area of the figure.
Answers
Answer:
A = 132 cm²Step-by-step explanation:
Area of the figure is a sum of area of rectangle 4 cm × 7 cm and trapezoid with bases of 19 cm i 7 cm and altitude of 8 cm.
Therefore:
[tex]A=7\cdot4+\dfrac{7+19}2\cdot8=28+26\cdot4=132[/tex]
please help me thank u
Answers
Given b=4, c=1, A=120° for a triangle with sides a, b, c and angles A, B, C. What is the area of the triangle? Round to the nearest hundredth.
Answers
Answer:
1.73 units
Step-by-step explanation:
The area of a triangle with sides a, b, c and angles A, B, C is given as
Area = 1/2 bc sin A
Given that b=4, c=1, A=120° for a triangle with sides a, b, c and angles A, B, C then the area
= 1/2 * 4 * 1 * sin 120
= 2 sin 120
= 2 * √3/2
= √3
= 1.732
To the nearest hundredth = 1.73
Solve It! A search-and-rescue boat
spots a lost hiker on the edge of a
rock shelf. How many feet is the boat
from the hiker? Round to the nearest
whole foot and enter only a number.
Hint: Consider partitioning the
triangle into two right triangles.
Answers
Answer:
107
Step-by-step explanation:
Given
See attachment for boat and hiker
Required
The distance between the boat and the hiker
To do this, we make of sine rule.
[tex]\frac{a}{\sin A} = \frac{b}{\sin B} =\frac{c}{\sin C}[/tex]
In this case:
[tex]x = ??[/tex]
[tex]X = 68[/tex]
[tex]a = 66[/tex]
[tex]A = 35[/tex]
So, we have:
[tex]\frac{x}{\sin 68} = \frac{66}{\sin 35}[/tex]
Make x the subject
[tex]x = \frac{66}{\sin 35} * \sin 68[/tex]
Using a calculator, we have:
[tex]x = \frac{66}{0.5736} * 0.9272[/tex]
[tex]x = 115.063* 0.9272[/tex]
[tex]x = 106.68[/tex]
[tex]x \approx 107[/tex]
Will mark brainliest please help ASAP Complete the square to find the vertex of this parabola x^2-14x+4y+29=0
Answers
Answer:
(7,5)
Step-by-step explanation:
Write an equation for the graph
Answers
Also why is the picture upside down
A car travelled at 50 km/hr for 3 hours How far did the car travel?
Answers
Answer:
25km
Step-by-step explanation:
50 km = x km
1 hr 3 hrs
From there, you cross-multiply and solve for x.
(50 km)*(3 hrs) = (x km)*(1 hr)
x km = (50)*(3)/(1) = 150km
Now, your other question can be answered the exact same way. 30 minutes is the same as 1/2 of an hour, so just put 0.5hrs in where the 3hrs was in the previous problem. So to show you how it works once more, here are your calculations:
50 km = x km
1 hr 0.5 hrs
(50 km)*(0.5 hrs) = (x km)*(1 hr)
x km = (50)*(0.5)/(1) = 25km
I hope that helps!
A six sided die is rolled. What is the probability that the number rolled is not a 2 or a4?
Answers
Find the area of the compound figure. Round your answer to 2 decimal places if required. (Use π = 3.14)
Hello! I’ve been stuck on this problem for a while and—though I know the answer—I’m not sure how to get to it? Please help!
Answers
Answer:
first you will need to break the shape into a semi circle and a triangle.
then solve the area of the semi circle. which is
[tex] \frac{(3.14) \times r ^{2} }{2} \\ [/tex]
[tex] \frac{(3.14) \times 4.6^{2} }{2} \\ = 33.22[/tex]
Then solve the area of the triangle.
First work out the height of the triangle, which is
[tex]13.4 - 4.6 = 8.8[/tex]
then the area. which is
[tex] \frac{1}{2} 4.6 \times 8.8 \\ = 20.24[/tex]
now calc. the two figures. which is
[tex]20.24 + 33.22 \\ = 53.46[/tex]
a. 292.6
b. 235.7
c. 471.4
d. 625.8
pls help
Answers
Answer:
d. 625.8
Step-by-step explanation:
LxWxH
L=6 you
W=7 you
H=14.9 yd
(6×7)×14.9
42x14.9
625.8
the whole bar weighs 200 grams. If the whole bar is split into 100 equal parts, how much does one of those parts weigh?
Answers
Answer:
2 grams per part
Step-by-step explanation:
200 g /100 parts = 2g per part
Answer: 2Grams
Step-by-step explanation:
200 divided by 100
Divide. Round to the nearest tenth.
.16 ÷ .03220
Answers
Answer: Rounded to the nearest tenth is 5
4.96894409 is the exact answer
ANSWER ASAP, FIND LENGTH OF MISSING SIDE USING PYTHAGOREOON THEOREM
Answers
Answer:
51?
Step-by-step explanation:
I am sorry if it's wrong
I NEED IT FAST
Explain what you would do first to simplify the
expression below. Justify why, and then state the
result of performing this step.
(121²
312
4+²
Answers
Answer:
r little 4 t little 2 ------------------------ 4sorry it didn't let me right it correctlyStep-by-step explanation:
25 pts, please help ASAP
A = 84 + 2t.
Assuming A has the same value, the given equations form a system of two linear equations. Solve this system using an algebraic approach and interpret your answer.
Answers
Answer:
5t - 2t = 84 - 54
3t = 30
t = 30/3
t = 10.
Please help asap first correct answer will get the brainly crown
25x-22.5=12x+22.5+2x
Answers
11x=45
x=45/11 or ~4.09
Find the equation of a line that passes through the points (1,-5) and (3,-6).
Leave your answer in the form y=mx+c
Answers
y = - 1/2x - 9/2
Which of the following functions are linear?
Answers
Answer:
Function B
Step-by-step explanation:
Ninety campers were assigned to 4 campsites as equally as possible. How many campers were assigned to each of the 4 campsites
Answers
Answer:
90/4=22.5
there are going to be 25 people on 3 of the campsites and 26 on the last one.
Matching the Transformed Function to its Graph
Use your knowledge of transformations to find the matching graph. f(x) = 2 sqrt x + 1
Answers
Answer: D
Step-by-step explanation:
Answer:
D
B
A
C
Step-by-step explanation:
Which expression is equivalent to 3(6f)
no links
Answers
Answer:
18f
Step-by-step explanation:
just multiply 3 time 6 and keep the variable
Answer:
18fStep-by-step explanation:
Hopes this helps. Mark as brainlest plz!3(6f)3*6 = 18Dont forget the variable18f ^^help me please
i've ask this 3 times and didn't get a correct answer
Answers
Answer:
240
Step-by-step explanation:
So to do this problem, you have to find the area of each 2d figure. To start off, you need to find the top sides. (to make this easier I won't show the work)
Green- Top & bottom: 16. Sides (4): 28
Pink- Top & bottom: 8. Sides (4): 20
Now you add it all up.
32+112+16+80=240
Answer:
224 in^2
Step-by-step explanation:
The pink rectangular prism has the dimensions 2 x 4 x 10 and the green has the dimensions 4 x 4 x 7. The formula for the surface area of a rectangular prism is:
2(lw + wh + lh)
We can substitute to find the surface area of both pink and green:
Pink
2(4 x 4 + 4 x 7 + 7 x 4)
2(16 + 28 + 28)
2(72)
144
Green
2(2 x 4 + 4 x 10 + 2 x 10)
2(8 + 40 + 20)
2(68)
136
The sum is 280. We have over-counted the part where the two prisms are next to each other. The area of the counted rectangle is 4 x 7 or 28. We over-counted twice, so we need to subtract 2 x 28 or 56.
280 - 56 = 224 in^2
FIRST BRAINLIEST WORTH 15 POINTS What is the area of the figure below?
Answers
Find \sin(\alpha)sin(α)sine, left parenthesis, alpha, right parenthesis in the triangle. Choose 1 answer: Choose 1 answer: (Choice A) A \dfrac{35}{12} 12 35 start fraction, 35, divided by, 12, end fraction (Choice B) B \dfrac{12}{35} 35 12 start fraction, 12, divided by, 35, end fraction (Choice C) C \dfrac{35}{37} 37 35 start fraction, 35, divided by, 37, end fraction (Choice D) D \dfrac{12}{37} 37 12
Answers
Answer:
The answer is below
Step-by-step explanation:
The question is not complete, a complete question is attached.
Solution:
A triangle is a polygon with three sides and three angles. Types of triangles are right angled, obtuse, acute, scalene, isosceles, equilateral triangle.
Trigonometric identities are used to show the relationship between the sides and the angles in a right angled triangle. Below are some trigonometric identities:
sin(θ) = opposite / hypotenuse; cos(θ) = adjacent / hypotenuse; tan(θ) = opposite / adjacent
The hypotenuse is the longest side in the triangle.
From the image attached:
sin(α) = opposite side / hypotenuse side
sin(α) = 7 / 25
Answer:
35/37
Step-by-step explanation:
During summer vacation, Tori read, on average, 40 pages per night. Now that she has returned to school, she is averaging 5% fewer. How many pages per night is Tori averaging now?
Answers
Answer: 38 pages per night
Step-by-step explanation:
Tori used to read an average of 40 pages per night but now she is going at a rate that is 5% slower.
To find the number of pages she is reading now, first find 5% of 40 pages:
= 5% * 40
= 2
Then subtract this figure from 40:
= 40 - 2
= 38 pages per night
By deducting 5% from the reading quantity, the person is reading at 5% less.
I NEED HELP ASAP
Acellus
Find the value of x. Round to the
nearest tenth.
X
372
6
x = [ ?
Answers
good luck :))))
Find U of trapezoid TUVS
Answers
Answer:
∠U=103°
∠V=77°
∠T=103°
∠S= 77°
Step-by-step explanation:
:)
PLEASE HELP
What is the value of y in this equilateral triangle?
Answers
Answer:
5y-15=180
5y=180+15
5y=195
5y÷5y=195÷5
y=39
The
tree frog population in your back yard doubles every two weeks. Currently, there are 10 frogs in your back yard. Assuming that there are 4
weeks in a month how many tree frogs will there be in 3 months?
Answers
Answer:
nah
Step-by-step explanation:
Order these numbers from least to greatest
Answers
Answer:
- 81, 8.54, 8 13/29, 8.6
Step-by-step explanation: