Answer:
x=-2
y=-11
Step-by-step explanation:
4x-3=-x-13
5x-3=-13
5x=-10
x=-2
y=4(-2)-3
y=-11
Write a formula that describes the value of an initial investment of $4000 that loses value at a rate of 10% per year, compounded six times per year.
since the investment is losing 10%, let's plug that in the compound interest equation but with a negative rate of 10%.
[tex]~~~~~~ \underset{\textit{with a negatie rate}}{\textit{Compound Interest Earned Amount}} \\\\ A=P\left(1~~ - ~~\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$4000\\ r=rate\to 10\%\to \frac{10}{100}\dotfill &0.10\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{six times} \end{array}\dotfill &6\\ t=years\dotfill &t \end{cases}[/tex]
[tex]A=4000\left(1~~ - ~~\frac{0.10}{6}\right)^{6\cdot t}\implies A=4000\left( \frac{59}{60} \right)^{6t}[/tex]
18. Simplify the expression.
(5)10 - (5)13
Answer:
Answer:
-15 is the answer
Step-by-step explanation:
According to the BODMAS (bracket of Division Multiplication Addition Subtraction) rule
=5*10-5*13
=50-65
=-15
Please help me with this problem thank you!
Answer:
the awnser is or I'm 4th grade
valerie drives 500 meteres up a hill that makes an angle of 15 degrees with the horizontal. To the nearest tenth of a meter, what horizontal distance has she covered?
Answer:
Answer:
The horizontal distance she has covered is:
x = 483.0m
Step-by-step explanation:
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What is the area of this trapezoid
Answer:
468
Step-by-step explanation:
Area of trapezoid=1/2 *h(l1+l2)
=1/2*18*(15+37)
=9*52
=468
Point R divides PQ in the ratio 1 : 3. If the x-coordinate of R is -1 and the x-coordinate of P is -3, what is the x-coordinate of Q?
A. -1/3
B. 3
C. 5
D. 6
E. -9
The x-coordinate of Q if the x-coordinate of R is -1 and the x-coordinate of P is -3 is 5
Here, we have,
given that,
Point R divides PQ in the ratio 1 : 3. If the x-coordinate of R is -1 and the x-coordinate of P is -3,
Midpoint of a line
The formula for calculating the midpoint of a line divided in the ratio m:n is expressed as:
M(x,y) = (mx₂ + nx₁) / (m + n) , (my₂ + ny₁) / (m + n)
For the x-coordinate
X = (nx₁+mx₂/m+n)
let, the x-coordinate of Q = a
Substitute the given parameters
-1 = 3(-3) + 1(a) / 1+3
or, -1 = -9 + a/4
or, -4 = -9 + a
or, a = 5
Hence the x-coordinate of Q if the x-coordinate of R is -1 and the x-coordinate of P is -3 is 5
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Based on the diagram, which expresses all possible lengths of segment AB?
AB = 25
27 < AB < 81
AB = 85
AB < 27 or AB > 81
Answer:
B. 27<AB<81 seems like the best option. AB got to be bigger than 27.
Step-by-step explanation:
Based on the diagram, possible lengths of side AB are 27 < AB < 81.
What is Triangle?Triangle is a polygon in two dimensional geometry. It consists of three sides, three angles and three vertices.
The sum of all the angles inside the triangle is equal to 180 degrees.
We have the Triangle Inequality theorem which states that the third side of a triangle is always less than the sum of the lengths of the other two sides.
So the length of side AB is always less than AC + BC.
AB < AC + BC
AB < 27 + 54
AB < 81
Now from the diagram it is clear that AC is less than AB.
AC < AB
27 < AB
Combining these inequalities, we get 27 < AB < 81.
Hence all the possible lengths of side AB is 27 < AB < 81.
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What is a[tex]\frac{1}{3}[/tex] As a ratio?
The graph of a function g is shown below.
Find g(1) and find one value of x for which g(x)=-1.
1) g (1) = ?
2) one value of x for which g (x) = -1 ?
Answer:
this is wrong
is the answer
if you like my answer please like comment and mark me as brilliant
If m∠D = 96°, what will be the m∠C to have a supplementary angle.
Answer:
84
Step-by-step explanation:
supplementary means two angles that add to 180
180-96=84
Find the length of the midsegment of the trapezoid.
Answer:
So 18+-10=8, 18+-8=10. So the answer is 8 I guess.
A rectangular garden is 15 ft longer than it is wide. Its area is 700 ft. What are its dimensions?
Step-by-step explanation:
Given :-
The length of rectangular garden is 15 feet longer than its widthThe area of rectangular garden is 700ft²To find:-
Dimensions of rectangular gardenSolution:-
According to the question , let the length of rectangular garden be x and width be x + 15
We know , the formula for area of rectangular garden is L × B
putting the known values ,
700ft.² = X × (X + 15)
700 ft. ² = x² + 15x
x² + 15 x - 700 = 0
By factorising it we get , x = 20
So , the dimensions of rectangular garden are 20 feet and 35 feet respectively for length and width.
Find the area of a circle with a radius of 5 feet. Round your answer to the nearest tenth.
area: about
ft2
Answer:
78.6
Step-by-step explanation:
Area of circle = Pi*r^2
r=5
for pi use calculator or pi=3.142
area =Pi*r2=(3.142)*5^2=(3.142)*25=78.55 = 78.6 (1 decimal place which is same with tenth)
What is the volume of the cylinder? Use 3.14 for .
4 cm
11 cm
Answer:
Use the formula,
Volume of cylinder =πr²h
=3.14×16×11
=552.64 cm³
Jillian says that 1 2/3
equals 3 ÷ 5. Is Jillian correct? Explain why or why not.
You must explain in words
Answer:
1 2/3 = 1.66666
3/5 = 0.6
Step-by-step explanation:
PLEASE HELP WITH THIS! IM FALLING BEHIND
Original side length: A'C'=5
Original angle: 37 degrees
By dilating with a scale factor over one, you are making it bigger. For this, you would multiply A'C' by 5. However, the angle doesn't change.
Resulting side length: A'C'=25
Resulting angle: 37 degrees
The correct answer is C.
Select the correct answer.
Which sentence fully illustrates that polygon ABCD is congruent to polygon PQRS?
A.
Corresponding pairs of angles on ABCD and PQRS are equal in measure.
B.
Corresponding pairs of sides on ABCD and PQRS are equal in length.
C.
Polygon ABCD maps to polygon PQRS through a reflection only.
D.
Polygon ABCD maps to polygon PQRS through a translation only.
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Transformations and Congruence: Mastery Test
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The answer is B. Corresponding pairs of sides on ABCD and PQRS are equal in length.
What is congruency?Two figures or objects are said to be congruent in geometry if their shapes and sizes match, or if one is a mirror image of the other. The meaning of congruency is that the two shapes are similar as well as equal in size.
In order for two polygons to be congruent, all corresponding pairs of sides and angles must be equal in measure, but only option B mentions the sides specifically.
Option A only mentions angles, option C mentions a reflection transformation, and option D mention a translation transformation, but neither of them provides enough information to show that all corresponding pairs of sides are equal.
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The upper part it a of cylindrical tank is hemisphere. The height of tank is 4.5m and creumference of base is 22m, how many litres of water the tank can hold? Find it.
Answer:
9.63 m³ = 9.63×1000 = 9630 litres (answer)
Step-by-step explanation:
hope it help
$117 per week is proportional to $234 per 2 weeks.
The proportion is____?
A proportion is a comparison between two ratios.
A ratio is a proportion between two numbers.
To write a proportion, create two comparisons with two numbers and set them equal to each other.
Solving the QuestionWe're given:
$117 per week$234 per 2 weeksThese ratios are proportional to each otherWrite two ratios:
[tex]\dfrac{117\hspace{3}dollars}{1\hspace{3}week}[/tex]
[tex]\dfrac{234\hspace{3}dollars}{2\hspace{3}weeks}[/tex]
Set them equal to each other:
[tex]\dfrac{117\hspace{3}dollars}{1\hspace{3}week}= \dfrac{234\hspace{3}dollars}{2\hspace{3}weeks}[/tex]
Answer[tex]\dfrac{117\hspace{3}dollars}{1\hspace{3}week}= \dfrac{234\hspace{3}dollars}{2\hspace{3}weeks}[/tex]
Please help me find the area for this hexagon (please show work to) ,:)
Check the picture below.
so the area of the hexagon is really just the area of two isosceles trapezoids.
[tex]\textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h=height\\ a,b=\stackrel{parallel~sides}{bases}\\[-0.5em] \hrulefill\\ a=2\\ b=4\\ h=2 \end{cases}\implies \begin{array}{llll} A=\cfrac{2(2+4)}{2}\implies A=6 \\\\\\ \stackrel{\textit{twice that much}}{2A = 12} \end{array}[/tex]
You buy x bags of chips for $.75 per bag. How much do you spend on chips.
Answer:
Step-by-step explanation:
Equation
Cost = 0.75 * x
The answer is Cost = 0.75 * x
A rectangle is 7 times longer than it is wide. It its perimeter is 144cm, what is it area?
Answer:
9
Step-by-step explanation:
→ Write an expression for the rectangles width
x
→ Write an expression for the rectangles length
7x
→ Now write an equation for the perimeter
x + 7x + x + 7x = 144
→ Simplify
16x = 144
→ Solve
x = 9
Find the area of the figure.
answer:
4.5m²
explanation:
1. find area of the circle
A(circle)=πr²
A=π(2.3²)
A=16.62m²
2. find area of the square
the diameter of a circle is twice its radius. when you multiply 2.3 by two, you get 4.6. since the circle reaches to the sides of the square, the diameter is also the length of a side on the square.
A(square)=s²
A=4.6²
A=21.16m²
3. subtract the two areas
to find the area of the shaded sector, we need to subtract the area of the circle from the area of the square.
A(shaded)=21.16-16.62
A=4.54097487m²
(be sure to round as necessary)
--
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Mr. Andade had supply bag with three mechanical pencils, four blue pens, and five black pens. If he selects a writing utensil without looking, what is the probability he will select a mechanical pencil?
Answer:
1/6
Step-by-step explanation:
The sum of all writing utensils are 3+4+5 = 12,
Therefore the probability he will select a mechanical pencil is 3/12 or 1/4.
.
.
.
.
.
.
.
.
For additional info,
Probability of selecting a blue pen and black pen respectively is 4/12 or 1/3 and 5/12.
A farmer has 160 ft. of fencing and wants to fence off a rectangular field that borders a straight river. He needs no fencing along the river.
a) What are the dimensions of the field that has the largest area?
b) What is the maximum area?
Answer:
L and B be the dimensions of field.
L+2B =2400ft.
AreaA = L×B=L×(2400-L)/2=1200L-L^2
For max.area to use the fencing dA/dL=1200-2L=0 or L=600ft
B=(2400-600)/2=900ft.
Total area = 540000ft^2.
Maybe?
Step-by-step explanation:
Quora
ans this question pleasepleasee i need it now 11:19 am
Step-by-step explanation:
Just times all the number for every question like the first one, 4×4×4=64(units)
=64ft
Same for the rest
please hurry im crying
Answer:
Step-by-step explanation:
it shows that the line is the same becuase it is perfectly lined up :)
Please, help me!!! 5 mins left to submit!!
Question 1 Part C (3 points): Choose the answer below that best completes the following statement:
Adding, subtracting, or multiplying two polynomials ___ results in another polynomial.
A. Sometimes
B. Always
C. Never
Find the surface area of the triangular prism.
A triangular prism. The base has sides of 17 meters, 17 meters, and 16 meters. The height of the prism is 10 meters. Apothem goes from the base vertex to the midpoint of the base edge, 16 meters, and measures 15 meters.
The surface area is
square meters.
jack had m math problems to complete during his vacation. he solved the same number of problems every day and finished them all in 5 days. Suppose Jack was solving 15 problems per day. Use this information and the answer to part (a) to build an equation. (the answer too part a was m/5)
Answer:
m/5=15
Step-by-step explanation:
Since Jack was solving m/5 problems per day, the equation to solve this would be the one given above.
The equation that represents the situation is m = 75x.
What is an equation?Two algebraic expressions having the same value and symbol '=' in between are called an equation.
If Jack solved m math problems in 5 days by solving the same number of problems every day, then he solved m/5 problems per day.
Now suppose Jack was solving 15 problems per day.
We want to find out how many problems he had to solve in total, so we can set up an equation using these two pieces of information:
15x = m/5
Here, x represents the number of days Jack took to solve all the problems.
We can solve for m by multiplying both sides of the equation by 5:
75x = m
So the equation we get is:
m = 75x
Therefore, this equation relates the total number of math problems Jack had to solve (m) to the number of days he took to solve them (x), given that he solved 15 problems per day.
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