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4 years ago

How do i know this is a rhombus

Mathematics

1 answer:

Sophie [7]4 years ago

4 0

Answer: It's not a rhombus

It would be a rhombus if all four sides were the same length, but we don't have that. Side DE is longer than EF, because the opposite angles are larger. We have 75 > 72, so that's why DE > EF.

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Justin bought some yarn from his Favorite craft store. He can make one score for 3/5 of a ball of yarn. If he purchases 15 balls

Svet_ta [14]

Justin can make 25 scraves with 15 balls of yarn

<h3><u>Solution:</u></h3>

Given that Justin can make one scarve for 3/5 of a ball of yarn

He purchases 15 balls of yarn

<em><u>To find: number of scarves Justin can make</u></em>

Number of scarves Justin can make with 15 balls of yarn can be found out by dividing 15 balls of yarn by 3/5 of a ball of yarn

$\text {number of scarves }=\frac{\text { total yarn he has }}{\text { yarn needed for } 1 \text { scarve }}$

$\text {number of scarves }=\frac{15}{3 / 5}$

$\text {number of scarves }=\frac{15}{3} \times 5=25$

Thus he can make 25 scraves

5 0

3 years ago

For each of the following expressions rewrite it in a way that would make it easier to simplify. State whether you used the asso

Elis [28]

1. 15(10 - 2)....distribute....150 - 30 = 120
2. (24 + 18) + (12 + 6).....commutative....(24 + 6) + (12 + 18) = 30 + 30 = 60
3. 5 * 13 * 2.....commutative.....5 * 2 * 13 = 10 * 13 = 130
4. 94 + 17 + 53 + 6....commutative...94 + 6 + 17 + 53 = 100 + 70 = 170
5. 25(14) ...distribute..25 * 10 + 25 * 4 = 250 + 100 = 350
6. 25 * (4 * 17)...associative....(25 * 4) * 17 = 100 * 17 = 1700

3 0

4 years ago

On a coordinate plane, a dashed straight line has a negative slope and goes through (0, 3) and (2, negative 1). Everything to th

Nimfa-mama [501]

Answer:

The answer to your question is y < -2x + 3

Step-by-step explanation:

See the graph below

Process

1.- Find the slope

$m = \frac{y2 - y1}{x2 - x1}$

Substitution

$m = \frac{-1 - 3}{2 - 0}$

$m = \frac{-4}{2}$

$m = -2$

2.- Find the equation of the line

y - y1 = m(x - x1)

Substitution

y - 3 = -2(x - 0)

Simplify and solve for y

y - 3 = -2x

y = -2x + 3

3.- Write the inequality

As the left area of the plane is shaded the inequality must be

y < -2x + 3

6 0

3 years ago

Read 2 more answers

As an estimation we are told 5 miles is 8 km. <br> Convert 92 km to miles.

AlekseyPX

Answer:

105 miles

Step-by-step explanation:

3 0

3 years ago

Find the x-intercept(s) and the coordinates of the vertex for the parabola

Drupady [299]

The answer
y=−x^2−2x-24 is like the form of y=ax² +bx +c, to find the vertex we use the formula:
the x intercept according to the vertex is x=-b/2a, and the vertex V is a point such that V [-b/2a, f(-b/2a)]
the x intercept is x= -(-2) / 2(-1) =-1, and f(-1)= -1 +2 -24= -23

the vertex is V(-1, -23)

4 0

3 years ago