Answer:
Hope this helps.
Step-by-step explanation:
Mathematics is all around us, in everything we do. From walking up the stairs, to playing a video game. Math can be applied to almost everything you do without you even being aware of it. It's complex, yet very simple.
A common example of using mathematics outside of school would be cooking. Cooking requires math, measurements, and science to get the perfect taste in every bite. For example, let us say you are baking a cake. You often use fractions right? 1/4 cup of butter, 2/4 cups of sugar, so on and so forth. You want a bigger cake? Double it! 2/4 cups of butter and 1 cup of sugar. It's simple yet it's still math. Essentially you are using measurements, multiplication, addition, division and subtraction to get the exact amount you need to make the perfect cake.
A rectangle has a length two times the width. Describe how you would find the
perimeter and area.
Answer:
perimeter = 6w
area = 2w^2
Step-by-step explanation:
we can use the variable w for width, and 2w for length perimeter would be width + width + length + length, or 6w
area is width x length or 2w^2
Answer:
Step-by-step explanation:
L=2W
A=LW and since L=2W
A=2W^2
P=2(L+W), and again since L=2W
P=2(2W+W)
P=2(3W)
P=6W
A new microwave costs $126.99 at Walmart. How much sales tax would
you pay if the tax rate is 7%?*
$135.88
$8.89
$135.87
$8.88
Answer:
135.87
Step-by-step explanation:
7% of 126.99 is 8.8893
add 126.99 to 8.8893
you get ~135.87
Answer:
8.89
Step-by-step explanation:
Take the cost of the item times the tax rate to find the amount of tax
126.99 * 7%
Change to decimal form
126.99 * .07
8.8893
Round to the nearest cent
8.89
A car can travel 15 miles on 8 gallons of gas. How far can the car travel on 22 g allons of gas?
Answer:41.25
Step-by-step explanation:
22/8 equals 2.75. Multiply the distance the car can travel by 2.75 to find how many miles it can run on with 22 gallons of gas. The answer will be 41.25 mi. Hope this helps :)
A. 78
B. 87.5
C. 100
please answer will give brainliest!!!!!!!
Answer: 100
Mode is simply the number which appears most often.
100 is the only number that appears more than once
Find parametric equations for the tangent line to the curve with the given parametric equations at the specified point. Illustrate by graphing both the curve and the tangent line on a common screen. x=t, y=e^-t, z=2t-t^2; (0, 1, 0)
Answer:
[tex]x = t[/tex]
[tex]y = 1 - t[/tex]
[tex]z = 2t[/tex]
Step-by-step explanation:
Given
[tex]x=t[/tex]
[tex]y=e^{-t}[/tex]
[tex]z=2t-t^2[/tex]
(0, 1, 0)
The vector equation is given as:
[tex]r(t) = (x,y,z)[/tex]
Substitute values for x, y and z
[tex]r(t) = (t,\ e^{-t},\ 2t - t^2)[/tex]
Differentiate:
[tex]r'(t) = (1,\ -e^{-t},\ 2 - 2t)[/tex]
The parametric value that corresponds to (0, 1, 0) is:
[tex]t = 0[/tex]
Substitute 0 for t in r'(t)
[tex]r'(t) = (1,\ -e^{-t},\ 2 - 2t)[/tex]
[tex]r'(0) = (1,\ -e^{-0},\ 2 - 2*0)[/tex]
[tex]r'(0) = (1,\ -1,\ 2 - 0)[/tex]
[tex]r'(0) = (1,\ -1,\ 2)[/tex]
The tangent line passes through (0, 1, 0) and the tangent line is parallel to r'(0)
It should be noted that:
The equation of a line through position vector a and parallel to vector v is given as:
[tex]r(t) = a + tv[/tex]
Such that:
[tex]a = (0,1,0)[/tex] and [tex]v = r'(0) = (1,-1,2)[/tex]
The equation becomes:
[tex]r(t) = (0,1,0) + t(1,-1,2)[/tex]
[tex]r(t) = (0,1,0) + (t,-t,2t)[/tex]
[tex]r(t) = (0+t,1-t,0+2t)[/tex]
[tex]r(t) = (t,1-t,2t)[/tex]
By comparison:
[tex]r(t) = (x,y,z)[/tex] and [tex]r(t) = (t,1-t,2t)[/tex]
The parametric equations for the tangent line are:
[tex]x = t[/tex]
[tex]y = 1 - t[/tex]
[tex]z = 2t[/tex]
Carl had been saving his money for weeks to buy the shoes that he had seen in the store window. The price tag said $90.00. Carl had saved $75.00.
would Carl have enough money if the shoes went on sale for 20% off?
yes or no?!
Answer:
Yes
Step-by-step explanation:
20% of 90= 72
then you want to subtract the amount of money you have minus how much it is 75 - 72 = 3
since the answer is a positive number that means yes.
Imagine pls helpppppppp!!!!!!
Answer:
169,000
Step-by-step explanation:
Answer:
Step-by-step explanation:
This is exponential growth of form
y=ar^x where y is final amount, a=initial amount, r=common ratio or rate and x=time
y=130000(1.03^10)
y=174709
plz help find the volume of the cylinder plz
Answer:
V = 12π in³
General Formulas and Concepts:
Symbols
π (pi) ≈ 3.14Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Volume of a Cylinder Formula: [tex]\displaystyle V = \pi r^2h[/tex]
r is radiush is heightStep-by-step explanation:
Step 1: Define
Radius r = 2 in
Height h = 3 in
Step 2: Find Volume
Substitute in variables [Volume of a Cylinder Formula]: V = π(2 in)²(3 in)[Volume] Evaluate exponents: V = π(4 in²)(3 in)[Volume] Multiply: V = π(12 in³)[Volume] Multiply: V = 12π in³Mr. Salazar cut his son’s birthday cake into 8 equal pieces. Mr. Salazar, Mrs.
Salazar, and the birthday boy each ate 1 piece of cake. What fraction of the cake
was left?
PLSSSS HELP ME WILL GIVE BRAINLESSLY
Answer:
5/8
Step-by-step explanation:
In the coordinate plane, what is the distance between (-2, 5) and (8, 5) ?
What type of triangle has exactly 2 equal sides
Answer:
The answer is an isosceles triangle.
Answer:
isosceles triangle
Step-by-step explanation:
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find the GCF 40,50,60
Answer:
10
Step-by-step explanation:
Pleaseeeeee i will mark you brilll
Answer:
58
Step-by-step explanation:
4 × 5 to the power of 2 + 3 × 5 + 3
Answer:
Option B
118
Step-by-step explanation:
[tex]4{x}^{2} + 3x + 3[/tex]
By putting the value of x = 5
[tex] = 4 {(5)}^{2} + 3 \times 5 + 3[/tex]
= 4 × 25 + 15 + 3
= 100 + 18
= 118 (Ans)
You spend the day looking for hidden container in a wolfed area using a global position System (GPS). You park your car and containers 2 before going back to the car. does your path forma right triangle?explain.
The paths of the car, and the containers do not form a right triangle
Checking if the paths form right triangle?From the question, we have the following parameters that can be used in our computation:
Car (10, 50)Container 1 (20, -20)Container 2 (80, -10)The distance between the coordinates is calculated as
Distance = √[(x2 - x1)² + (y2 - y1)²]
Using the above as a guide, we have the following:
Car to container 1 = √[(10 - 20)² + (50 + 20)²]
Car to container 1 = √5000
Car to container 2 = √[(10 - 80)² + (50 + 10)²]
Car to container 2 = √8500
Container 1 to container 2 = √[(20 - 80)² + (-20 + 10)²]
Container 1 to container 2 = √3700
Using pythagoras theorem, we have
√8500² = √3700² + √5000²
Evaluate
8500 = 8700
This is false
Hence, the paths do not form a right triangle
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2. If your short-term disability insurance rate is 0.5%, what do you pay if your
paycheque is $300.00?
Answer:
300 x .005= $1.50
...............
A person invests 2500 dollars in a bank. The bank pays 4.25% interest compounded annually. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 4100 dollars?
Answer:
11.9
Step-by-step explanation:
The time taken for the amount of $2500 to be $4100 will be 11.8 years.
Compound interest is the addition of interest to the principal sum of a loan or deposit or interest on interest plus interest.
In finance and economics, interest is the payment of an amount above the repayment of the principal sum by a borrower or deposit-taking financial institution to a lender or depositor at a specific rate by a borrower or depositor.
Given that a person invests 2500 dollars in a bank. The bank pays 4.25% interest compounded annually.
The time will be calculated by the compound interest formula,
[tex]\rm A = P[1+\dfrac{r}{100}]^{nt}[/tex]
Substitute the values in the formula and calculate the time,
[tex]4100= 2500[1+0.0425]^t[/tex]
[tex]\dfrac{4100}{2500}=[1.0425]^t[/tex]
Take logs on both sides,
log(1.64) = t log(1.0425)
t = (log(1.64)/log(1.0425)
t = 11.8 years
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A certain type of chocolate bar is sold as follows.
Single chocolate bar: 82p, or buy one get one half price
Packs of 5: £3, offer: 2 packs for £5.75
Packs of 10: £6 each
What's the cheapest way of buying exactly 38 chocolate bars without any extra?
Find the amount of each type of pack or single bar you need and the total cost of buying 38 packs.
Answer:
Step-by-step explanation:
You would never buy a 10-pack, because two 5-packs cost less.
To buy 3 bars you need a single bar and a pair of single bars for £0.82 + £0.82+ £0.41 = £2.05
To buy 30 bars you need 3 pairs of 5-bar packs = 3×£5.75 = £17.25
To buy the remaining 5 bars you need one 5-bar pack = £3
cost = £2.05 + £17.25 + £3 = £22.30
can someone help me with this simple 8th grade worksheet
Lee sells electronics. He earns a 5% commission on each sale he makes. If lee sells the PS5 for 500, how much does lee make in commission
Answer: Lee would make $25 on commission.
Step-by-step explanation: I found this by multiplying 500 by .05 or 5%. Lastly you can check this by taking 25 times 20, because 5% x 20 = 100%, so if 25 was really equal to 5% then it would equal the whole, or 500.
Hope this helps.
What is the value of (f-g)(7)?
f(x)=2+x;g(x)=x^2+5
(f-g)(7)=[1]
Answer:
Alright so on this type of problem you just perform the operation they ask for, which in this case is subtraction.
Your first step will be to set up the problem:
f(x) - g(x)
Next you will substitute in your values:
(2x + 1) - (x2 - 7)
The easiest way to do the subtraction problems is to distribute your negative into your second set of parenthesis, so your expression would become:
2x + 1 - x2 + 7
Then combine your like terms:
2x - x2 + 8
Lastly put your expression in standard form (highest exponent to lowest)
-x2 + 2x + 8
Hope this helped!
Step-by-step explanation:
Manuel has brought 24 pounds of dog food. He feeds his dog 3/4 pounds for each meal. For how many meals will the food last ?
Answer:
32
Step-by-step explanation:
24/(3/4)
Answer:
32 meals
Step-by-step explanation:
24 / (3/4)
Multiply by reciprocal:
24 x (4/3) = 32
How many pairs can you make when picking a month of the year and flipping a coin?
12
14
18
24
Answer:
24 I guess
Step-by-step explanation:
There are 2 sides in a coin so 12 x 2 = 24
2. What is the perimeter of a rectangle
which is 12 metres long and 9
metres wide?
(a) 21m
(b) 42m
(c) 54m
(d) 84m
(e) 108m
Answer:
(b) 42m
Step-by-step explanation:
Perimeter of a rectangle ⇒ P=2(l+w)
Which means P=2·(12+9)
Which equals 42
PLEASE HELP!!! WILL MARK BRAINLIEST
What is the perimeter of quadrilateral of MNPQ?
Answer:
240
Step-by-step explanation:
m + n + p+ q = perimeter
60 + 60 + 60 + 60 = 240
I'm pretty sure that's how you solve it, I'm so sorry if it's wrong
The perimeter of the given quadrilateral will be 21 units.
What is a quadrilateral?A quadrilateral is a shape made up of the four sides having the sum of the angles 360 degrees.
The quadrilateral MNPQ has four sides 6,6,6 and 3.
The perimeter is calculated as the sum of the all the sides:-
Perimeter = 6 + 6 + 6 + 3 = 21 units
Therefore the perimeter of the given quadrilateral will be 21 units.
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The slope of the line that passes through the point (2,4) and (3,8) is
Hi! Your answer is m = 4 or slope is 4.
Make sure to read an explanation for a better and clear understanding to your problem.
Any questions about my answer and explanation can be asked through comments! :)
Step-by-step explanation:
To find a slope of a line with given two coordinate points, we can do by using rise over run or slope formula which is:
[tex]\large\boxed{m=\frac{y_2-y_1}{x_2-x_1}}[/tex]
The boxed formula is the slope formula. The changes of y over the changes of x. This can be called "rate of change".
From (2,4) and (3,8). We substitute the given coordinate points in the formula.
[tex]\huge{m=\frac{8-4}{3-2}}\\\huge{m=\frac{4}{1}}\\\huge{m=4}[/tex]
Hence, the slope is 4.
Additional Note
m-term comes from y = mx+b where m is defined as slope in slope-intercept form. Therefore, m = slope.Hope this helps!
ANSWER FAST PLEASE!!!!!!!!
110o
112o
142o
144o
Answer:
142
Step-by-step explanation:
142 I believe on study island
1 + 1 + 23 + 77 +109 + 4568+ 32?
Answer:
4811?
Step-by-step explanation:
sorry if incorrect
A recipe for punch says to use
1 3/5 cups of lemonade for each cup of ginger ale. If you use
3 2/3 cups of ginger ale, how much lemonade should you use?
it takes kim 11 hours to proof a chapter of Hawkes Learning System introductory algebra book and it takes Bethany 6 hours how long would it take them working together
Answer:
3 15/17 hour
Step-by-step explanation:
Kim: 11 hours for 1 chapter
Bethany: 6 hours for 1 chapter
Together: x hours to proof a chapter
In 1 hour:
Kim proofs 1/11 of a chapter
Bethany proofs 1/6 of a chapter
Kim and Bethany together proof 1/11 + 1/6 of a chapter
Kim and Bethany together proof 1/x of a chapter
Therefore, 1/11 + 1/6 must equal 1/x
1/11 + 1/6 = 1/x
6/66 + 11/66 = 1/x
17/66 = 1/x
x = 66/17
x = 3 15/17
Answer: 3 15/17 hour
Can some one help me plss sssssssss