Mathematics High School

gina willson all about algebra (TRIANGLES ANGLES SUM) HELP ASAP PLEASE

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Answer 1

14. Question wise,

In ΔRST,

∠R=2x+5

∠S=x+1

∠T=7x-16

we know,

∠R+∠S+∠T=180 [sum of 3 angles of a triangle is 180°]

2x+5+x+1+7x-16=180

10x-10=180

10(x-1)=180

x-1=18

x=19

so,

∠R=(2×19)+5=43

∠S=19+1=20

∠T=(7×19)-16=117

15. Question wise,

In ΔABC,

∠A=∠C-13

∠B=4∠C-11

we know,

∠A+∠B+∠C=180 [,,]

∠C-13+4∠C-11+∠C=180

6∠C-24=180

6∠C=180+24

∠C=204÷6=34

so,

∠A=34-13=21

∠B=(4×34)-11=125

16. Question wise,

In ΔJKL

∠K=∠J+9

∠L=2∠J-21

we know,

∠J+∠K+∠L=180

∠J+∠J+9+2∠J-21=180

4∠J-12=180

4∠J=180+12

∠J=192÷4=48

so,

∠K=48+9=57

∠L=(2×48)-21=75

Related Questions

May I get some help with this, please?!? I will greatly appreciate it!

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Answer:

its C

Step-by-step explanation:

Answer:

hope it helps

thank you...

You pick a card at random. 1 2 3 4 What is P(1 or even)? Write your answer as a percentage.

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The probability of drawing a 1 or an even number from the set {1, 2, 3, 4} is 75%.

There are four cards in the set {1, 2, 3, 4}, of which two are even (2 and 4) and one is odd (1). To find the probability of drawing a 1 or an even number, we can add the probabilities of each event occurring:

P(1 or even) = P(1) + P(even)

Since each card is equally likely to be drawn, each of these probabilities is equal to the number of cards that satisfy the condition divided by the total number of cards:

P(1) = 1/4 (there is one card with a 1)

P(even) = 2/4 = 1/2 (there are two cards with even numbers out of four)

Therefore,

P(1 or even) = P(1) + P(even)

= 1/4 + 1/2

= 3/4

To express the answer as a percentage, we can multiply by 100:

P(1 or even) = 3/4 * 100%

=> 75%

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hey can someone help me pls *ANSWER ASAP*

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This is a translation of 2 units to the left and 5 units up, so the correct option is the first one.,

Which is the translation applied?

Remember that a vertical translation of N units is:

g(x) = f(x) + N

if N < 0 the translation is down.

if N > 0 the translation is up.

And a horizontal translation of N units is:

g(x) = f(x + N)

If N > 0 the translation is to the right.

if N < 0 the translation is to the left.

Here we have the transformation:

f(x) = x²

g(x) = (x + 2)² + 5

So this is a translation of 2 units to the left and 5 units up.

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What is 2x10-2+6 please help

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Answer:

Step-by-step explanation:

What is 2x10-2+6?

2 × 10 - 2 + 6 = (remember PEMDAS)

20 - 2 + 6 =

18 + 6 =

Answer:

24 should be your answer

PLEASE HELP FIRST CORRECT ANSWER GETS BRAINLIEST AND LOTS OF POINTS

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Answer:

i belive it is A

Step-by-step explanation:

help plsss....................

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Answer:

d. x^8

Step-by-step explanation:

hope this helps :)

In ARST, mZR = (5x – 11)", mZS = (3x – 3)°, and m_T = (3x + 18)º.
Find mZR.

In ARST, mZR = (5x 11)", mZS = (3x 3), and m_T = (3x + 18).Find mZR.

Answers

Answer:

m∠R = 69

Step-by-step explanation:

m∠R + m∠S + m∠T = 180 {Angle sum property of triangle}

5x - 11 + 3x - 3 + 3x + 18 = 180

5x + 3x + 3x - 11 - 3 + 18 = 180 {Combine like terms}

11x +4 = 180

11x = 180 - 4

11x = 176

x = 176/11

x = 16

m∠R = 5x - 11

= 5*16 - 11

= 80 - 11

m∠R = 69

Find the surface area of the square pyramid shown below.units 2 Base 4 Height 3

Answers

To solve;

we will use the formula;

$A=a^2+2a\sqrt[]{\frac{a^2}{4}+h^2}$

where a is the base and h is the height

From the diagram, a = 4 and h=3

substituting into the formula;

$A=4^2+2(4)\sqrt[]{\frac{4^2}{4}+3^2}$

$A=16+8\sqrt[]{4+9}$

A= 16 + 8√13

A= 16 + 28.8444

A=44.844 units²

Beinggreat78 can you pls answer for me?! Or someone who is good at Algebra! PLEASE HELP ME!! :(

Answers

Answer:

you have the correct answers

Step-by-step explanation:

you already have the right answers

8 taps can fill a tank in 27 min with the same rate of flow. If 3 taps go out of order how long will the remaining taps take to fill the tank

Answers

Answer:

pls 5 star

Step-by-step explanation:

8 taps can fill a tank in 27 minutes.

So,

1 tap can fill the same tank in time = 27 × 8 = 218 minutes

Therefore, 6 remaining taps can fill the same tank = 216/6

= 36 minutes

The remaining 6 taps will take 36 minutes to fill the same tank.

Develop a fictitious hypothesis under which ANOVA may be used under topic; THE ENVIRONMENTAL IMPACTS OF LANDFILLS ON THE LOCAL COMMUNITY. Obtain some data fictitious to test your hypothesis using ANOVA.
Marking guide:
1. Development of a realistic hypothesis
2. Innovation regarding the data used/adopted/formulated and its relation to the proposed project.
3. Hypothesis testing using ANOVA.
4. Presentation of the results.
5. Conclusions

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Hypothesis: The type of waste management system implemented in a local community significantly affects the environmental impacts of landfills.

How to explain the hypothesis

In order to test this hypothesis, we will gather fictitious data from three different local communities that have implemented different waste management systems: Community A, Community B, and Community C.

Community A: Implements a modern landfill with advanced waste treatment technologies.

Community B: Utilizes a traditional landfill with basic waste containment measures.

Community C: Employs a waste-to-energy incineration system, reducing the volume of waste sent to landfills.

We will collect data on three environmental impact variables: air quality, groundwater contamination, and biodiversity disruption. Each variable will be measured on a scale of 1 to 10, with 1 indicating the least impact and 10 indicating the highest impact

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Hey guys can i get some help please?? Really behind on work and just simply don't understand. 25 points if you anwser.

How many significant figures does each value contain?

5.6803 kg has _______ significant figures.

0.00047 seconds has _________significant figures.

0.240 miles has _______significant figures.

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[1] has 2 significant figures

[2] has 1 significant figure

[3] has 0 significant figure

Answer:

A large box of strawberris vaires in price.the cost of a box is never graeater than or equal to 10$ the lowest price ever reached for the box of strawberries is 5$. write an inquality to show all the possible prices (P) for a box of strawberries

Answers

Answer:

10 > P ≥ 5

Step-by-step explanation:

inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions

sine the price can't be greater than or equal to 10$ we set it up 10 is greater than P ( 10 > P )

sine the lowest price ever was 5$ then we know P can't be any lower than 5$ but can still be 5$ so we set up as P is greater than or equal to 5 ( P ≥ 5 )

then to get your answer you just but the two comparisons together ( 10 > P ≥ 5 )

Abdul's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Abdul per pound, and type B coffee costs per pound. This month, Abdul made pounds of the blend, for a total cost of . How many pounds of type A coffee did he use

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Complete question :

Abdul's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Abdul $4.25 per pound, and type B coffee costs $5.90 per pound. This month's blend used twice as many pounds of type B coffee as type A, for a total cost of $337.05 . How many pounds of type A coffee were used?

Answer:

21 pounds

Step-by-step explanation:

Pounds of coffee A used = x

Pounds of coffee B = 2x

Cost per pound of A = $4.25

Cost per pound of B = $5.90

Total cost of coffee = $337.05

4.25x + 2x(5.90) = 337.05

4.25x + 11.8x = 337.05

16.05x = 337.05

x = 337.05 / 16.05

x = 21

Hence, 21 pounds of coffee A was used

Lydia found an apartment that she wants to rent. The rent is $715 per month and there is a security deposit of $355. To move in, Latisha must have first month's rent, last month's rent and the security deposit. How much does Lydia need to move in?

Answers

Answer:

$1785

Step-by-step explanation:

you have to multiply the monthly rent by 2 since she has to pay the first and last months rent and then add the $355 security deposit

Answer:

$1985

Step-by-step explanation:

715 x 2 = 1430

1430 +355 = $1985

which of the following is true regarding evaluating the quality of a forecast? multiple choice a biased forecast has a zero forecast error. in the mean squared error evaluation, one single observation can make a very large difference. if both forecasters have an unbiased forecast, then they are equally good at forecasting. the mean squared error is always lower than the mean absolute error when evaluating the same forecaster.

Answers

Answer: If two forecasters have unbiased forecasts, then they should have the same average error over many forecasts. In that sense, they would be equally good at forecasting.

Step-by-step explanation:

The statement that is true regarding evaluating the quality of a forecast is:

If both forecasters have an unbiased forecast, then they are equally good at forecasting.

Explanation:

A biased forecast can have a zero forecast error if the bias happens to offset the error in the forecast. However, a zero forecast error does not necessarily indicate that the forecast is unbiased.

In the mean squared error (MSE) evaluation, one single observation can make a very large difference because the errors are squared before they are averaged. Therefore, outliers can have a large impact on the MSE.

If we are evaluating the same forecaster, then the mean squared error is not always lower than the mean absolute error. It depends on the specific forecast and the distribution of errors.

However, if two forecasters have unbiased forecasts, then they should have the same average error over many forecasts. In that sense, they would be equally good at forecasting.

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What is the radius of a sphere with a volume of 12,348 π cubic feet?

Answers

Answer:

Radius = 21

Step-by-step explanation:

Volume of a sphere = 4/3 * pie * radius^3

12,348 pie = 4/3 * pie * radius ^3

12,348 = 4/3 * radius^3

(12,348 * 3)/ 4 = radius^3

9261 = radius^3

radius = $\sqrt[3]{9261}$

radius = 21

-5
for
f(x) =
- 4 < x < 1
1 - X – 5
for

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Answer:

the total cost for roller skating depends on the number of hours a person skates. which equation represents the relationship btw the cost c and the ...

1 answer

20 votes:

To answer this item, we let n be the number of hours that a person spend on th the total cost for roller skating depends on the number of hours a person skates. which equation represents the relationship btw the cost c and the ...

1 answer

20 votes:

1 answer

20 votes:

1 answer

20 votes:

1 answer

20 votes:

1 answer

20 votes:

1 answer

20 votes:

To answer this item, we let n be the number of hours that a person spend on th

Step-by-step explanation:

A jewelry store is having a going out of busniess sale. All merchandise is marked 40% off the reguler price. The regualr price of a watch is $59.95. Find the amount of the discount and the sale price.

Answers

Answer:

Amount of the Discount: $23.98

Sale Price: $35.97

Step-by-step explanation:

In order to calculate the discount we first need to turn this percentage into a decimal by dividing it by 100. Once we have it in decimal form we subtract that value from 1. Finally, we multiply this new decimal by the original price in order to obtain the sale price like so...

40 / 100 = 0.40

1 - 0.40 = 0.60

0.60 * 59.95 = 35.97

Now we have the sale price which is $35.97 now we can subtract this value from the original price to calculate the amount of the discount.

59.95 - 35.97 = 23.98

Write two congruence statements for the congruent triangles. i will give out brainly

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Answer:

If two sides in one triangle are congruent to two sides of a second triangle, and also if the included angles are congruent, then the triangles are congruent. ... If in triangles ABC and DEF, AB = DE, AC = DF, and angle A = angle D, then triangle ABC is congruent to triangle DEF.

number of snack and soft drink vending machines in the school
Ratio or integer

Answers

The answer is ratio

what is -3(4+(-7) + (-2( 5) -17) with examples pls

Answers

Answer:

Step-by-step explanation:

-3 (4 - 7) + (2 x 5 - 17)

-3 (4 - 7) + (10 - 17)

-3 x (-3) + (-7)

9 + (-7)

9 - 7

During the year, Poch Co. incurred cost of goods sold of $59,823 million on net sales of $76,643 million. What was Poch's return on sales ratio for the year? (Assume no other expenses)
a. 10.6%
b. 24.1%
c. 21.9%
d. 13.8%

Answers

During the year, Poch Co. incurred cost of goods sold of $59,823 million on net sales of $76,643 million. To find Poch's return on sales ratio, we need to divide the cost of goods sold by the net sales and multiply by 100.

The calculation would be:
Return on Sales Ratio = (Cost of Goods Sold / Net Sales) * 100
Plugging in the given values:
Return on Sales Ratio = ($59,823 million / $76,643 million) * 100
Now, let's solve the calculation:
Return on Sales Ratio = (0.7807) * 100
Return on Sales Ratio ≈ 78.07%
Since none of the provided answer options match with the calculated ratio, we cannot determine the exact return on sales ratio.

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can someone help me?

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Answer:

Step-by-step explanation:

Calculate the distance d using the distance formula

d = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }$

with (x₁, y₁ ) = (0, 0 ) and (x₂, y₂ ) = (x, y )

d = $\sqrt{(x-0)^2+(y-0)^2}$

= $\sqrt{x^2+y^2}$ → B

Problem 4. (14 pts) A square matrix M is said to be nilpotent provided Mk = 0 for some positive integer k. If A = ſi 1 1 0 1 1 0 0 1 verify that A - 13 is nilpotent.

Answers

Answer: The matrix A-13 is nilpotent.

Step-by-step explanation: To verify that A-13 is nilpotent, we need to show that there exists a positive integer k such that (A-13)^k = 0. First, we need to calculate A-13. A-13 = ſi 1 1 0 1 1 0 0 1 - ſi 1 0 0 0 1 0 0 0 = ſi 0 1 0 1 0 0 0 1

Next, we need to calculate (A-13)^2, (A-13)^3, and so on until we find the value of k such that (A-13)^k = 0.

(A-13)^2 = ſi 0 1 0 1 0 0 0 1 ſi 0 1 0 1 0 0 0 1 = ſi 0 0 0 0 0 0 0 0 = 0

Therefore, k = 2 and (A-13)^2 = 0. This means that A-13 is nilpotent.

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two times what wade's age was seven years ago

Answers

Answer:

how old is he now...?

Which expression represents the perimeter of the triangle shown below?

Answers

Answer:

a)2x2+x-1

Step-by-step explanation:

perimeter is the sum of sides of a triangle or length of botder

What is the area of this compound figure?

Answers

Answer:

66mm

Step-by-step explanation:

A single stem rose is $3.99. What would be the price of 36 roses?

Answers

$143.64

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find the lemgth of arc PQ

Answers

The arc length is D) 3.14 meters.

What is arc length?

In mathematics, an arc is a portion of a curve that can be thought of as a segment of the curve. An arc is a connected set of points on a curve, usually a portion of a circle.

It is defined by two endpoints and all the points along the curve between them. The length of an arc is the distance along the curve between its two endpoints.

The distance along the curved line that forms the arc (a section of a circle) is measured using the arc length formula.

$A_L=\frac{\theta}{360\textdegree}2\pi r$

Here the give circle Radius PR = 3m and θ=60°.

Now using arc length formula then,

=> Arc length $A_L=\frac{\theta}{360\textdegree}2\pi r$

=> $A_L=\frac{60}{360} \times2\times3.14\times3$

=> $A_L=\frac{1}{6}\times2\times3.14\times3$

=> $A_L$ = 3.14 m.

Hence the arc length is D) 3.14 meters.

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