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KIM [24]
3 years ago
5

Help me with this plsss

Mathematics
1 answer:
Brrunno [24]3 years ago
5 0

1.

a. 8 x 7 x 1/2 = 56 x 1/2 = 28

b. 24 x 14 x 1/2 = 336 x 1/2 = 168

c. 5 x 12 x 1/2 = 60 x 1/2 = 30

d. 4 x 4.8 x 1/2 = 19.2 x 1/2 = 9.6

2.

two triangles: 2(4 x 8 x 1/2) = 4 x 8 = 32

rectangle: 15 x 8 = 120

total area: 32 + 120 = 152

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PLEASE HELP ME WITH THIS
Nastasia [14]
Answer: figure 1). x = 36 2). x = 123

Explanation:
Figure 1:
Angle x = angle 1

And angle 4 = 4x

Angle 4 + angle 1 = 180
4x + x = 180
5x = 180
x = 36

Figure 2:
Angle 1 = 68 degree
Angle 2 = 55 degree

Find angle 3:
180 - (68 + 55)
= 180 - 123
= 57 degree

But angle 3 = angle 4 = 57 degree

But: angle 4 + x = 180
57 + x = 180
x = 180 - 57
x = 123

4 0
4 years ago
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The length of one side of a rhombus is 20 m.Find its perimeter.
AlekseyPX

Answer:

80 m

Step-by-step explanation:

Given :-

One side of rhombus = 20 m.

[ as one of the property of rhombus = all sides are equal ]

So, perimeter of rhombus = sum of all sides

= 20+20+20+20 = 80 m

...........................OR............................

Perimeter of rhombus = 4 × side

= 4 × 20 = 80 m

Hence, the perimeter of the rhombus is 80m.

3 0
3 years ago
Read 2 more answers
Which points are 19 units apart?
Harrizon [31]

Answer:

(-14, 12) and (5, 12)

Step-by-step explanation:

From inspection of the points given, we can see that all pairs of points <u>share the same y-values</u>.

Therefore, each pair of points are on the same <u>horizontal line</u>.

To find the distance between the points, simply <u>find the difference between the x-values</u>.

Given points:  (-14, 12) and (5, 12)

⇒ Difference between x-values = 5 - (-14) = 19 units

Given points:  (-5, 19) and (12, 19)

⇒ Difference between x-values = 12 - (-5) = 17 units

Given points:  (-20, 5) and (1, 5)

⇒ Difference between x-values = -20 - 1 = -21 = 21 units

Given points:  (14, 12) and (5, 12)

⇒ Difference between x-values = 14 - 5 = 9 units

4 0
3 years ago
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A firm starts work with 110 employees for the 1st week. The number of employees rises by 6% per week. How many weeks will it tak
Papessa [141]
1 % of 110 = 1.1
x 6 = 6.6
round up because you can't have 0.6 of a person.
7 people a week.
250 - 110 = 140
140 divided by 7 = 20
20 weeks
7 0
3 years ago
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The small submarine is at –1,320 feet in relation to sea level. The submarine needs to be at 180 feet below sea level in 60 minu
larisa [96]

Answer:

The first submarine needs to travel at a rate of [-180 – (-1,320)] ÷ 60 = 19 feet per minute. The second submarine needs to travel at a rate of [-180 – (-1,440)] ÷ 60 = 21 feet per minute.

3 0
3 years ago
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