Determine the value of y in the figure, and identify whether the triangle is isosceles or equilateral. answers: y = 30°; equilateral y = 30°; isosceles y = 60°; equilateral y = 60°; isosceles

Answer:

a=7

Step-by-step explanation:

7(a – 10) = 13 – 2(2a + 3)

Open the bracket

7a-70=13-4a-6

Collect like terms

7a+4a=13-6+70

11a=77

divide both sides by 11

11a/11=77/11

a=77/11

a=7

Answer:

C the table and the equation

Hope this helps :)

Answer:

2l + 2w is the formula for perimeter. l = 2w + 6 can be written as "the length is 6 feet more than two times its width."

The answer is B.

Answer:

B

Step-by-step explanation:

Answer:

Acute and isoselces

Step-by-step explanation:

Isoseles triangles have two sides of equal length. Acute triangles' angles are all less than 90°.

The best describes the triangle is the acute and isosceles.

We have given that the triangle

We have to describe the given triangle

An isosceles triangle is a triangle that has two sides of equal length. Sometimes it is specified as having exactly two sides of equal length, and sometimes as having at least two sides of equal length, the latter version thus including the equilateral triangle as a special case.

Isosceles triangles have two sides of equal length. Acute triangle angles are all less than 90°.

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Answer:

There are 320 mL in 2 cans

Step-by-step explanation:

Since one can holds 160 mL of orange juice, all we need to do is add them together since it is to cans to get 320 mL.

Answer:

There are 320 mL in 2 cans

Step-by-step explanation:

Since one can holds 160 mL of orange juice, all we need to do is add them together since it is to cans to get 320 mL.

i originally said 320ml but my answer was deleted.

Answer:

Do you mean like what is 15*8=x? if so then I guess X would be 120.

Step-by-step explanation:

Answer:

23 m

Step-by-step explanation:

Given that triple the area = 1587 m² , then

area = 1587 ÷ 3 = 529 m²

The area of a square = s² ( s is the measure of the side ), thus

s² = 529 ( take the square root of both sides )

s = [tex]\sqrt{529}[/tex] = 23 m

Answer:

For x=1 substituting in f(x) the value of x

f(1)=-3(1)+1 = -2

For x=0 substituting in g(x) the value of x

g(0)=3^(0) =1

Finally, we have to find for what value of x the function f(x) gives -8

f(x) = -8

-8 = -3x+1

-3x=-9

x=3

Answer:

122

Step-by-step explanation:

Let x ft. be the distance from neighbour's fence to the house.

Please see attached picture for full solution.

Thus, distance from neighbour's fence to the house is 122 ft. (nearest whole number)

Answer:

39 - s

Step-by-step explanation:

she has 28 she finds 11 more (28+11) and she gives s amount away (28+11-s) simplify 39 - s

Answer:

k = 3

Step-by-step explanation:

Expand the left side and compare the coefficients of like terms on both sides.

(2x - 1)(kx + 1) ← expand using FOIL

= 2kx² + 2x - kx - 1

Compare the coefficients of the x² term on both sides

2k = 6 ( divide both sides by 2 )

k = 3

Answer:

k= 6x-3/2x-1

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

Yes, since 12 is multiplied by (-4)^-1 every time, and the definition of geometric sequence is that  the first term has to be multiplied by a certain other constant number (referred to as common ratio (r)). The formula for a geometric sequence is An=A1R^(n-1)

Answer:

[tex]4.5 \: miles[/tex]

Step-by-step explanation:

[tex]3 \: miles \: in \: 28 \: minutes.[/tex]

[tex]x \: miles \: in \: 42 \: minutes.[/tex]

[tex]28x=42 \times 3[/tex]

[tex]28x=126[/tex]

[tex]\frac{28x}{28}=\frac{126}{28}[/tex]

[tex]x=\frac{9}{2}[/tex]

Answer:

[tex]4.5 \: \: miles \\ [/tex]

Step-by-step explanation:

[tex]3 \: \: miles = 28 \: \: min \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: x \: \: \: = 42 \: min[/tex]

use cross multiplication

[tex]42 \times 3 = 28 \times x \\ 12 6 = 28x \\ \frac{126}{28} = \frac{28x}{28} \\ x = 4.5 \: \: miles[/tex]

Answer:

200 mL shampoo - 1050 ml water

500 mL shampoo - 2625 mL water

Step-by-step explanation:

1) 400 ml shampoo , should be mixed 2500 - 400 = 2100 mL of water.

2) 400 mL shampoo - 2100 mL water

    200 mL shampoo -  x mL water

x = 200*2100/400 = 1050 mL water

3) 400 mL shampoo - 2100 mL water

   500 mL shampoo - x  mL water

  x = 500*2100/400 = 2625 mL water

Answer:

y-4=-7(x-1) OR y-(-10)=-7(x-3)

Step-by-step explanation: The point-slope form is [tex]y_[/tex]-[tex]y_{1}[/tex]=[tex]m_[/tex]([tex]x_[/tex]-[tex]x_{1}[/tex])

In slope-intercept form, the equation would be y = -7x + 11

You could find the slope by using the slope equation, [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex].

Using that, you would get -7. Thus by inserting one of the points and the slope in the point-slope equation, you will get your answer.

Answer: b.y=1/4x-1

Step-by-step explanation:

Y=mx+b

Y=1/4x-1 because 1/4 is the slope which is what you put in m and -1 is the y-intercept which is where it starts and is what you put in b.

Answer:y=1/4x-1

Step-by-step explanation:

Answer:

hey mate, here is your answer. Hope it helps you.

Step-by-step explanation:

We can write 630 in expanded form as:

630 = 600 + 30 + 0

and in words:

630 = 6 hundreds, 3 tens and zero ones

the value 6 is 600

and the place value of 3 is 30 and the face value is 3 in the number 630.

The number can be written in the expanded form as 600 + 30 + 0 and the face value is 3 in the number 630.

A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.

It is given that:

The number is 630

As we know, the arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

The number 630 can be written as:

630 = 6x100 + 3x10 + 0x1

630 = 600 + 30 + 0

The above expression represents the expanded form of the number 630.

In words:

630 = 6 hundred, 3 tens, and zero ones

The value 6 is 600

The place value of 3 is 30 and the face value is 3 in the number 630.

Thus, the number can be written in the expanded form as 600 + 30 + 0 and the face value is 3 in the number 630.

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Answer:

C = 12.6 inches

Step-by-step explanation:

The circumference of a circle is given by

C = 2* pi*r

Using 3.14 for pi and 2 for r

C = 2 * 3.14 *2

C =12.56

To the nearest tenth

C = 12.6 inches

Answer:

[tex] = 12.56 \: in[/tex]

Step-by-step explanation:

[tex]c = 2\pi \: r \\ = 2 \times \pi \times 2 \\ = 4 \times \pi \\ = 12.56 \: \: in[/tex]

hope this helps you

Answer:

it is 3/y.

Step-by-step explanation:

the answer is 3/y because 3 comes before y in the question.

Answer:

21. 98 cents

Gabby placed in 4th.

Step-by-step explanation:

Assuming Steven is paying, 51+45+2=98 cents.

Answer:

21. 98 cents

Gabby placed in 4th.

Step-by-step explanation:

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Answer:

 y = 0

Step-by-step explanation:

-3(y-3)=9

One solution was found :

                  y = 0

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    -3*(y-3)-(9)=0

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (0 -  3 • (y - 3)) -  9  = 0

Step  2  :

Equation at the end of step  2  :

 -3y  = 0

Step  3  :

Solving a Single Variable Equation :

3.1      Solve  :    -3y = 0

Multiply both sides of the equation by (-1) :  3y = 0

Divide both sides of the equation by 3:

                    y = 0

Answer:

No solution

Step-by-step explanation:

–3|y – 3| = 9

⇌       (Divide both sides by -3)

|y – 3| = -3  impossible

because  |y – 3| is greater than 0 and -3 is less than 0.

Answer:

y=18 and (2y+6) measures 42 the answer for obtuse 138  the last one is 46

Answer:

6:42 or 1:7 simplified.

Step-by-step explanation:

Answer:

224/4

this will give you 56 miles per hour, or c.

Step-by-step explanation:

Hope this helps!

Answer:

Amy worked for 128 hours while Brayden worked for 112 hours

Step-by-step explanation:

Given

Let A represents Amy and B represents Brayden

A = 16 + B ------(1)

A:B = 8:7------- (2)

Required

Find A and B;

Convert (2) to fractions

[tex]\frac{A}{B} = \frac{8}{7}[/tex]

Cross Multiply

[tex]7 * A = 8 * B[/tex]

[tex]7A = 8B[/tex]

Substitute A = 16 + B in the above expression

[tex]7(16 + B) = 8B[/tex]

Open Bracket

[tex]7 * 16 + 7 * B = 8B[/tex]

[tex]112 + 7B = 8B[/tex]

Subtract 7B from both sides

[tex]112 + 7B - 7B = 8B - 7B[/tex]

[tex]112 = B[/tex]

[tex]B = 112[/tex]

Recall that A = 16 + B

Hence, [tex]A = 16 + 112[/tex]

[tex]A = 128[/tex]

This implies that Amy worked for 128 hours while Brayden worked for 112 hours

Answer:

The answer is Graph III.

Step-by-step explanation:

Given that the linear equation is y = mx + c where m represents gradient and c is y-intercept.So firstly, we have to make y the subject :

[tex]3x - 36 + 2y = 0[/tex]

[tex]2y = - 3x + 36[/tex]

[tex]y = - \frac{3}{2} x + 18[/tex]

Next, by looking at the graph, we know that the line has a negative gradient and touches y-axis at 18 which suits the equation.

Answer:

28%

Step-by-step explanation:

Express 14 as a fraction of 50 and multiply by 100%, that is

[tex]\frac{14}{50}[/tex] × 100% ( cancel 50 and 100 by 50 )

= 14 × 2 %

= 28%

Answer:

m= -2/5

Step-by-step explanation:

use the slope-intercept form y=mx+b to find the slope m.

Answer:

-2/5

Step-by-step explanation:

plz mark brainliest!

Answer:

C

Step-by-step explanation:

The measure of the inscribed angle DEF is half the measure of its intercepted arc, that is

[tex]\frac{1}{2}[/tex] ∠ DEF = arc ED , that is

arc ED = 2 × 78° = 156°  → C

Option c 156 is correct.

Angle of the arc at tangent EF = 78

Area of circle is given by the pie times square of radius.

Since Angle made by chord with tangent is equal to halve the angle made by cord with its radius.
So

2 ∡DEF = measure of arc ED
= 2 x 78

= 156

Thus, the measure of are ED is 156°

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