Delta math question —-

Delta Math Question -

Answers

Answer 1

Answer:

21

Step-by-step explanation:

I think its 21, because the BD line divides the big triangle into 2 ones and they are equilateral triangle, sorry if I'm wrong

Answer 2

Answer:

BD = 21

Step-by-step explanation:

The sector divided AC into two equal pieces and since this is a right triangle the height of the triangle BD is equal to half of the base

(21+21) / 2 = x

42 / 2 = x

21 = x


Related Questions

Evaluate f(x) = 2|x – 5| for f(–5) and f(0).

f(–5) = –20, f(0) = –2

f(–5) = 10, f(0) = 0

f(–5) = 20, f(0) = 10

f(–5) = 12, f(0) = 5

Answers

Answer:

f(–5) = 20, f(0) = 10

Step-by-step explanation:

f(-5):

f(-5) = 2|-5 -5|

f(-5) = 2|-10|

f(-5) = 2(10)

f(-5) = 20

f(0):

f(0) = 2|0 - 5|

f(0) = 2|-5|

f(0) = 2(5)

f(0) = 10

True or false

If two figures are similar and one is bigger than the other, the scale factor of bigger to smaller will be the same as the scale factor of smaller to bigger.
Will give brainly

Answers

False it will be the reciprocal

Answer:

False

Step-by-step explanation:

if you are comparing two figures that are similar the scale factor will flip because you are altering the shape from the first shape

I don’t know how to do that

Answers

Answer:

16

Step-by-step explanation:

Divide 64 by 8 to get 8. this is 1/8 of the books.

3/8 were non fiction, or 24

1/4 (2/8) were picture books, or 16

5/8 were non fiction or picture books, so ’the rest‘ of the chapter books is 3/8.

3/8 were chapter books, or 24.

add the amount of picture books and chapter books since they are the fictional texts.

16+24=40

subtract the amount of non fictional books from the amount of fictional books to get the sum.

40-24=16

Help! Il give you brainlest

Answers

with what ?? there’s no attachment

Answer:

What?  there is no question here

Step-by-step explanation:

En una jornada cultural los grupos de 3.° de ESO van a grabar un cortometraje y un clip musical. Al principio se inscribió para el corto el triple de alumnos que para el clip. A última hora, 5 alumnos se cambian del corto al clip y ahora el número de alumnos para el clip es la mitad que para el corto. ¿Cuántos están ahora en cada actividad?

Answers

Respuesta:

20 estudiantes

Explicación paso a paso:

Dejar :

número de estudiantes que firmaron para el clip = x

Número de estudiantes que firmaron para cortometraje = 3x

En el último minuto ;

Se convierte en cortometraje; 3x - 5 y el clip se convierte en; x + 5

Por eso ; la ecuación se convierte en;

x + 5 = 1/2 (3x - 5)

x + 5 = 1,5 x - 2,5

x - 1,5x = - 2,5 - 5

- 0.5x = - 7.5

x = 7,5 / 0,5

x = 15

Por lo tanto ;

Cortometraje: 1/2 (3x - 5)

1/2 (3 (15) - 5))

1/2 (45 - 5)

1/2 (40)

= 20

Por tanto, hay 20 alumnos en cada actividad.

Can someone please solve this for me

Answers

I think the answe is d please be aware I might be wrong

Two parallel lines have same slopes so we need to find the slope of the line which passes through the given points.

Suppose : A = ( - 2 , 7 ) & B = ( 4 , 4 )

Slope = y ( B ) - y ( A ) / x ( B ) - x ( A )

Slope = 4 - 7 / 4 - ( - 2 )

Slope = - 3 / 4 + 2

Slope = - 3 / 6

Slope = - 1 / 2

------------------------------------------------------------

As you know The coefficient of x is the slope of the line in slope-intercept form.

Thus we have to find the option which x has - 1 / 2 as the coefficient .

Look we have that in D so the correct answer is D .

2. What is the coordinate of the final image of vertex T
after the triangle is translated 3 units to the left and 2
units up?


Please help with number 2

Answers

Answer:

We have the coordinates of vertex T after the translation as (-5,0)

Step-by-step explanation:

Firstly, we get the coordinates of vertex T

we have this as;

(-2,-2)

Translating to the left means we are going to subtract the specific units from the x-coordinate

2 units up means we are going to add to the y-coordinate value

So, we have it that;

(-2-3, -2+ 2) = (-5,0)

7a +42 +8 < -10 + 9a -6 + 4a

Answers

Answer:

a > 11

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

7a + 42 + 8 < -10 + 9a - 6 + 4a

Step 2: Solve for a

Combine like terms (a):                                                                                    7a + 42 + 8 < -10 + 13a - 6Combine like terms:                                                                                         7a + 50 < 13a - 16[Subtraction Property of Equality] Subtract 7a on both sides:                      50 < 6a - 16[Addition Property of Equality] Add 16 on both sides:                                   66 < 6a[Division Property of Equality] Divide 6 on both sides:                                  11 < aRewrite:                                                                                                             a > 11

Here we see that any value a greater than 11 would work as a solution to the inequality.

Look at the picture to see question please help

Answers

I’m a little rusty but maybe c

Simon bought a 10-pound bag of cat food. He gives his cat 0.3 pound of food per day. Which equation with two variables to describe how the amount of cat food in the bag changes over time.

Answers

Answer:

y = 10 - 0.3t

Step-by-step explanation:

Amount of cat food purchased= 10 pounds

Daily pounds fed to dog = 0.3 pounds

How the amount of cat food in bag changes over time ;

Let y = amount of cat food left in bag

t = number of days since cat food was purchased

Amount of cat food left in bag = amount of cat food purchased - (daily pounds fed to dog * Number of days since cat food was purchased)

y = 10 - 0.3t

find the perimeter:

The answer choices are down below:

80.8m or 91.7m.

Answers

Perimeter of the shape is =sum of all the side

Perimeter =16.2+7.5+18+12+18+7.5

Perimeter =79.2

Perimeter

Answer:

perimeter=12+18+18+7.5+7.5+16.2

=79.2m

A 9-foot (ft) ladder and a 4-foot ladder are leaning against a house. The two ladders create angles of the
same measure with the ground. The 4-foot ladder has a height of 3.8 feet against the house.
Help please!!

Answers

Answer:

The 9-foot ladder would have a height of 8.55 ft against the house

Step-by-step explanation:

The angles made by the 9-foot ladder and 4-foot ladder that are leaning against the house is 71.8 degrees.

The situation forms a right angle triangle.

What is a right angle triangle?

A right angle triangle has one of its angles as 90 degrees. The sides and angle can be found using trigonpometric ratios.

Therefore, the 9 foot and the 4 foot ladder forms the same angle.

The 4 foot ladder forms a 3.8 ft height against the wall.

Hence,

sin ∅ = opposite/ hypotenuse

sin ∅ = 3.8 / 4

∅= sin⁻¹ 0.95

∅ = 71.8051276612

∅ = 71.8°

Therefore, the angles made by the 9-foot ladder and 4-foot ladder that are leaning against the house is 71.8 degrees.

learn more on right triangle here: https://brainly.com/question/22894739

Find the value of x please and fast!!

Answers

Answer:

B) 5

Step-by-step explanation:

The three townships of Springfield, Wyandot, and
Johnsonville form an equilateral triangle as shown
below. Write and solve an equation to determine the
value of x.
Wyandot
(62) mi
18.6 mi
Johnsonville
Springfield
X=

Answers

Answer:

x=23 miles

Step-by-step explanation:

heart if it helped

Answer:

X=23jkhhhhjhggguhhgyfv

Rectangle PQRS is rotated 90° counterclockwise about the origin.

Answers

Answer:

Can you please provide more information about the rectangle? Do you have a graph or some points?

Answer:c

Step-by-step explanation:

Jason is looking up at the light at the top of the lighthouse. The angle of elevation from Jason to the light is 34°. The height of the lighthouse is 217 feet. a) Draw the right triangle. Label the given information on the triangle. b) Label the sides OPP, ADJ, and HYP. PUT A BOX AROUND EACH LABEL. c) Determine the distance from Jason to the light. d) Round your answer to the nearest tenth. Show all work. ​

Answers

Answer:

6ix9ine

Step-by-step explanation:

$17.40 is 120% of what price?

Answers

i tried looking for it but i’m sorry

If the acceleration is 600m/s/s and the mass is 300kg, calculate the force? *

Answers

Answer:

600 m/s2 ×300 kg = 180000 kg.m/s2

Answer:

180000Kgm/s2

Step-by-step explanation:

Force is the product of mass and acceleration. So F=MA

F=600 x 300

F=180000

Find the area of the figure to the nearest tenth.
165 7 in

Answers

Answer:

141.1 in

Step-by-step explanation:

r^2*theta

7^2*165pi/180

141.1

Answer:

Step-by-step explanation:

The volume, V, of any cube with side length, s, can be determined using the formula V = s3 . What is the volume, in cubic centimeters, of a cube with a side length of 0.2 centimeters?

A
3.2

B
0.6

C
0.006

D
0.008

Answers

The answer for your question is c

the cost of a school banquet is $95 plus $15 for each person attending. Write an equation that gives total cost as a function of the number of people attending. What is the cost for 77 people?​

Answers

Answer:

equation: y=15x+95

it would cost $1250

Answer:

f(x) = 95 + 15x

Cost for 77 people = $1250

Step-by-step explanation:

15 x 77 = 1155

1155 + 95 = 1250

8.1.26
Write the polynomial in standard form. Then name the polynomial based on its degree and number of terms.
x2 + 1 - 2x
Write the polynomial in standard form.

Answers

Answer:

(x-1)(x-1)

Step-by-step explanation:

If anyone is really good at math please hmu ASAP.

Answers

Answer:

Same I'll help you all if you guys try to help me with my recent question.

Step-by-step explanation:

A square piece of plastic has sides that are 8 centimeters long. What is the piece of plastic's area?

Answers

Answer:

64 [tex]cm^{2}[/tex]

Step-by-step explanation:

l x w = area

8 x 8 = 64

Please help me, will mark brainliest

Answers

Answer:

EThir 83 or  180

Step-by-step explanation:

A NO PASSING ZONE road sign has the shape of an
isosceles triangle with angle measures shown. Write
and solve an equation to determine the value of x.
Round to the nearest tenth.
(3.25x)"
NO
PASSING
ZONE
*50*
X=

Answers

Answer:

15.38

Step-by-step explanation:

two angles are equal

3.25x=50

x= 15.38461538461

Which measures describe the variation on a data set? a. Mean b. Median c. Mode d. MAD e. Interquartile range f. Range

Answers

Answer:

e, f

Step-by-step explanation:

A measurement of variability is an overview of the amount of dispersion  in a dataset. The measures that can describe the variation on a data set are Range, Interquartile Range, Variance, and Standard Deviation.

So ,The among the given options the e. Interquartile range f. Range

Range of dataset is the difference between the larges and smallest elements in the dataset .

The middle of the data between the upper and lower quartiles are called the inter-quartile range. That means that 50 percent of data points between Q1 and Q3 are included within the interquartile range.

O D.y = -2x + 2
Q. If m=3 and b=6, what is the correct slope intercept equation?
answer choices
y=3-6
y=3X-6
y=3x+6
y=6x+3
US OP 10:31

Answers

Your answer is option 3:
1. You need to replace the numbers into
Y=mx+b
2 piecing it all together your answer will b:
Y=3x+6

Which of the following examples has a unit rate of 25 feet per second? Select all that apply. A) 100 feet in 4 seconds B) 150 feet in 10 seconds C) 225 feet in 9 seconds D) 275 feet in 11 seconds E) 100 feet in 5 seconds

Answers

Answer:

A) C) D)

Step-by-step explanation:

We can simply divide them to find out the answer.

A) 100/4=25

B)150/10=15

C)225/9=25

D)275/11=25

E)100/5=20

Find a formula for a_n (for the geometric sequence), then find the 8th term. Solve for both or one of these questions, thank you so much!

Answers

Answer:

2a. aₙ = 12 * -2ⁿ⁻¹; a₈ = -1536

2b. aₙ = 4 * 3ⁿ⁻¹; a₈ = 8748

Step-by-step explanation:

The geometric sequence formula is aₙ = a₁ * rⁿ⁻¹.

2a:

a₈ = 12 * -2⁸⁻¹ {Subtract 1 from 8 to get 7}

a₈ = 12 * -2⁷ {2⁷ is 128. Since the exponent is odd, this will be negative.}

a₈ = 12 * (-128) {Multiply 12 by -128 to get -1536.

a₈ = -1536

2b:

a₈ = 4 * 3⁸⁻¹ {Subtract 1 from 8 to get 7)

a₈ = 4 * 3⁷ {7 is the 3rd number after 4 (a multiple of 4). As a result, this will end in a 7. 3⁷ is 2187.}

a₈ = 4 * 2187 {Multiply 4 by 2187 to get 8748}

a₈ = 8748

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