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2 years ago

13

Bev has to trim her grandma's grass this weekend and wants to know exactly how much area she will be trimming. Calculate the are

a of the polygon. Be sure to show all your work and explain your answer.

1 answer:

malfutka [58]2 years ago

4 0

Answer:

150 ft²

Step-by-step explanation:

If you take that triangle and place it on the other side you get a normal rectangle and can just multiply 15 By 10

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What is the length of the missing leg

sp2606 [1]

Answer:

4.33

Step-by-step explanation:

1. Pythagoras Theorem

$25 = \sqrt{3^{2}+b^{2}}$

2. Find b

$5 = 3^{2}+b^{2}$

$b^{2}$ = $5-3^{2}$ = $5-9$ = -4

but sqrt(-4) is not possible

b ≅ 4

OR (Require trig knowledge)

1. Sine Rule

$\frac{a}{sin\alpha}=\frac{b}{sin\beta}=\frac{c}{sin\pi }$

2. Plug in numbers

$\frac{5}{sin90}=\frac{b}{sin60}=\frac{3}{sin30}$

b ≅ 4.33

8 0

3 years ago

Mrs. Flores asked her students to write a number, its opposite, and its absolute value, in that order. Four of her students turn

oee [108]

Answer:

Sarah is correct

Step-by-step explanation:

Required

Which of the students is correct

Let a number be x,

Given what the teacher asked the students to do, the solution is:

$Number = x$

$Opposite = -x$

$Absolute = |x|$

Only Sarah got this correctly; others are incorrect.

The proof is as follows.

For Sarah

$Number = 1416$

$Opposite = -1416$

$Absolute =|1416| = 1416$

So, the numbers will be: 1416, -1416 and 1416

<em>Other students are incorrect</em>

4 0

3 years ago

Geometry math question

defon

we know that KUCN=105

CN=51

HMKU=96

HM=HMKU-MKU=96-78=18

we know that JN=JK+KN=82+105=187

JN=JH+HM+MKU+UC+CN

187=22+18+78+UC+51

UC=18.

8 0

3 years ago

Read 2 more answers

On a trip to visit friends, a family drives 65 miles per hour for 208 miles of the trip. If the entire trip was 348 miles and to

vodka [1.7K]

From information given, we know
208 miles was at rate of 65 mph. so divide total mileage by speed to get time spent.

208 ÷ 65 = 3.2 hours

So the rest of the trip took 6 - 3.2 = 2.8hours to travel another 348 total miles minus the 208 miles driven at 65mph is 140 miles.

140 miles divided by 2.8 hours gives speed

140 ÷ 2.8 = 50 miles per hour

4 0

3 years ago

wel

The hypotenuse can be solved by this formula. X^2 = 6^2 +6^2

X^2=64
Usually you cut it down to 8 but it wants the squared form so 64.

6 0

3 years ago