Mathematics High School

2/7 done! If it’s right I will put brainliest!

Answers

Answer 1

Answer:

The name of the marked angle is (angle BAD)

Step-by-step explanation:

Related Questions

17. A man stands 4300 feet from the Burj Khalifa in
Dubai (world's tallest building). The angle of
elevation from his eyes (5 feet) to the top of the
building is 32°. How tall is the building?

Answers

9514 1404 393

Answer:

b. 2692 ft

Step-by-step explanation:

The relation of interest between the sides of the right triangle is ...

Tan = Opposite/Adjacent

Using the given numbers, that is ...

tan(32°) = (building height)/(4300 ft)

Multiplying by 4300 ft, we get ...

building height = (4300 ft)·tan(32°) ≈ 2686.9 ft

This is the height above the observer's eyes, so the height of the building above the ground is ...

2687 +5 = 2692 . . . . feet

The building is 2692 feet tall.

The perimeter ratio of two similar triangular prisms are 13:7. If the surface area of the smaller prism is 52km2 , then calculate the larger surface area.

Answers

Answer:

96.5714285714 km^2

Step-by-step explanation:

You have to multiply 52 by 13/7

Answer:

96.5714285714 km^2

hope it helps

Explain how to draw a line segment that measures 72 millimeters.

Answers

Answer:

get a ruler and meshure out 72 millimeters.

Step-by-step explanation:

did exam

Tbh I got no clue how to do this so help please

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Answer:

I'm not entirely sure but I think you have to start by negative -1 and move back 4 spaces?

Step-by-step explanation:

the Red arrows is pointing towards the negative side of the number line

Topic: Matrix Row Reduction

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Write the system as an augmented matrix:

[tex]\left[\begin{array}{cc|c}1&5&22\\4&-7&7\end{array}\right][/tex]

Add -4 (row 1) to row 2 :

[tex]\left[\begin{array}{cc|c}1&5&22\\0&-27&-81\end{array}\right][/tex]

Multiply row 2 by -1/27 :

[tex]\left[\begin{array}{cc|c}1&5&22\\0&1&3\end{array}\right][/tex]

Add -5 (row 2) to row 1 :

[tex]\left[\begin{array}{cc|c}1&0&7\\0&1&3\end{array}\right][/tex]

Then x = 7 and y = 3.

David buys 3 movie tickets for $6 each and 2 bags of popcorn
for $2 each. Simplify the expression 3.6 +2.2 to find out how
much money David spent in all

Answers

Answer:

5.8 thats the answer you get when it is simplified and 1 movie ticket=$2 and 1 bag of popcorn= $1

Step-by-step explanation:

Sam and Dave, who are both Park Rangers, each manage a nature preserve. Devin's nature reserve is 14 hectares and Sam's nature reserve is 14\cdot 10^{6}14⋅10 6 square meters. Who manages the smaller nature preserve? Note: 1 hectare = 10,000 square meters

Answers

Answer: Devin's

Step-by-step explanation:

Given

Devin's nature reserve is 14 hectares

Sam's nature reserve is [tex]14\times 10^6\ m^2[/tex]

Also, [tex]1\ \text{hectare}=10,000\ m^2[/tex]

Devin reserve in square meter [tex]14\ \text{hectares}=14\times 10^4\ m^2[/tex]

Clearly, [tex]14\times 10^6> 14\times 10^4[/tex]

So, Devin's manages smaller area

What is the solution to the equation 1.2m - 0.8 = -2.Om?
m = 0.25
m = 0.4
m = 1
m = 4

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The answer will be 0.25

I need this done for a test, and if someone can answer one of my past questions, thank you

Answers

Answer: #1 D 60 2# H

Step-by-step explanation:

The measurement of one angle of a right triangle is 42°.
What is the measurement of the third angle?
56°
42
138
48

Answers

Answer:

Step-by-step explanation:

42 + 90 + x = 180

x = 48

can someones please help me i dont get this

Answers

Answer:

176.25in^2

Step-by-step explanation:

You can tell that the two triangles on the left, and the two triangles on the right make a rectangle if you flip one of them. Because of this, you can multiply the base and height to get the area of both.

7.5*16=120 (left side)

7.5*7.5=56.25 (right side)

Now we add them to get the full area:

120+56.25=176.25in^2

Each Serving of pasta is 1/2 pound. Drag to correct equation to each amount to show how many 1/2 pound serving Can be made

Answers

Step-by-step explanation:

4 pounds is 4÷1=8

5 pounds is 5÷1=10

Which right circular cylinder has the greater volume

Answers

Answer:

the blue cylinder

Step-by-step explanation:

A - 3/4 = 1/8 step by step explanation

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Answer:

A-3/4=1/8 is the equation, if you expand 3/4 it is 6/8, in order to get 1/8 you need to subtract 6/8 from 7/8

7/8-6/8=1/8 therefor A=7/8

what s

2/3x(23+57)

jeefhjdfblfhlwkejbfhbfkjdsbfwjbf

Answers

Answer:

Step-by-step explanation:

53.3333333333

Answer:

160 x /3

Step-by-step explanation:

Write an equation in standard form for a line that is perpendicular to the line with an equation of y = 3x —5 that passes through the point (8, 5).

Answers

Answer:

x + 3y = 23

Step-by-step explanation:

m = -1/3, find 'b'

5 = -1/3(8) + b

15/3 = -8/3 + b

23/3 = b

y = -1/3x + 23/3

multiply each side by 3 to get:

3y = -x + 23

x + 3y = 23

help plsssssss no links or files

Answers

Answer:

i just did that earler lol

Step-by-step explanation:

Q.1 What value of p will make this equation true?

Q.2 what value of x makes this equation true?

Answers

Answer:

[tex]1. \: p = 10 \\ 2. \: x = 4[/tex]

Difference between 3/5 of Raman's present age and his age 4 years ago is zero. What will be his age after 5 years?

Answers

Answer: 15 years

Step-by-step explanation:

Given

Difference between [tex]\frac{3}{5}[/tex] Raman's present age and his age 4 years ago is 0

Suppose Raman's present age is [tex]x[/tex]

So, we can write

[tex]\Rightarrow \dfrac{3x}{5}-(x-4)=0\\\Rightarrow \dfrac{3x-5x}{5}+4=0\\\Rightarrow \dfrac{-2x}{5}+4=0\\\Rightarrow x=\dfrac{20}{2}=10[/tex]

His age after 5 years is [tex]x+5=15\ yr[/tex]

Can you form a parallelogram by drawing a triangle and then reflecting one or more times? Explain.

Answers

Answer:

please give me brainlist and follow

Step-by-step explanation:

No. It is not possible to reflect a triangle in such a way that the result is quadrilateral with any consecutive sides that are congruent.

Una parcela de forma cuadradra mide 1089km2 de superficie cuantos metros mide el lado de la parcela

Answers

Respuesta:

3.3 × 10⁴ m

Explicación paso a paso:

Paso 1: Información provista

Superficie de la parcela cuadrada (S): 1089 km²

Paso 2: Determinar la longitud del lado (l) de la parcela

Podemos determinar la superficie de un cuadrado usando la siguiente fórmula.

S = l²

l = √S = √1089 km² = 33 km

Paso 3: Convertir "l" a metros

Vamos a usar el factor de conversión 1 km = 10³ m.

33 km × 10³ m/1 km = 3.3 × 10⁴ m

I cant seem to get it can you help me, please.

Answers

is there a photo attached?

It takes Jack 11 hours to pick 40 bushels of apples alone. Jill can pick 40 bushels of apples in 9 hours. How long will it take Jack and Jill to pick 40 bushels of apples together. Round to the nearest hour.

Answers

Answer:

5 hours

Step-by-step explanation:

Jack 40/11 = 3.64 bushels per hour

Jill 40/9 = 4.44 bushels per hour

together they pick 3.64 + 4.44 = 8.08 bushels per hour

40/8.08 = 4.95 hours

Which pair of points graphed below have values that are opposites

Answers

The answer is D.) A and E

It’s D :) A and E hope this helped

In the figure, a triangular board ABC is right-angled at B. The
lengths of the two legs are 15 cm and 20 cm. If it is rotated about its
hypotenuse, two circular cones are obtained.

(a) Find the height BN of the board with AC as the base.

Answers

Measure of BN = 12 cm

solution in attached image !!

off topic but Omg armyyy

What is the length of X?
a = 6.4
b = 12

Answers

C = 12.2
Not sure if it’s the pythagorean theorem..

Which of the following is equivalent to(x2+6x+9)
(x-3)(x+3)
(x+2)(x-7)
(x-6)(x+3)
(x+3)2

Answers

The answer is (x+3)2 I believe if not sorry

50 POINTS!! Please please help find height and volume of pyramid!!!

Answers

Answer:

44.68.8m³

hope it helps please mark Brainliest

I NEED HELP WITH THIS IVE RETAKEN IT LIKE 4 TIMES PLS HELP

Answers

Answer:

(a)=40 (b)=60

Step-by-step explanation:

(a)=

So first 70 +70 = 140 then 180-140 = 40

(b)

So first 180/3 = 60 all angles =60

a=40 b=60

A explanation
70 + 70 = 140
180-140 = 40

B explanation
180/3= 60
all angles = 60

A delivery company is logging the number of miles each employee drives each day. The company found an average of about 85.6 miles. Assume that the standard deviation is 9.85 miles and that a random sample of 50 drivers was used to determine the average. Which statements are true about this situation?
1.)The 99% confidence interval is from about 81.43 to 90.58 miles.
2.)The 95% confidence interval is from about 82.87 to 88.33 miles.
3.)The margin of error for 95% confidence is about 2.52 miles.
4.)The sample isn’t large enough to use a normal distribution.
5.)The margin of error for 99% confidence is about 3.59 miles.
There are multiple answers

Answers

The correct answer is: (the margin of error for 99% confidence is about 3.59 miles.

The delivery company's statistics on the average driving miles show that the true statements are:

95% confidence interval ... 82.87 to 88.33 miles.Margin of error 99% confidence ... 3.59 miles.

What is the 99% confidence interval?

Z score for 99% confidence interval is 2.576 so this can be found as:

= 85.6 ± (2.576 x 9.85) / √50

= (82.01 to 89.19)

What is the 95% confidence interval?

Z score for 95% confidence interval is 1.960 so this can be found as:

= 85.6 ± (1.96 x 9.85) / √50

= (82.87 to 88.33)

What is the 95% confidence margin of error?

With a Z score of 1.960:

= (1.96 x 9.85) / √50

= 2.70 miles

What is the 99% confidence margin of error?

= (2.576 x 9.85) / √50

= 3.59 miles

The correct options are therefore 2 and 5.

Find out more on the margin of error at https://brainly.com/question/10218601.

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