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UNO [17]
2 years ago
14

Please answer this i really understand this at all its so hard:((

Mathematics
1 answer:
vlabodo [156]2 years ago
5 0

Step-by-step explanation:

25x ratio

stay safe and wear mask

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The results of a survey of common allergies was
Westkost [7]

Answer: how many people are not allergic to any of the three choices? 22

How many people are allergic to all three choices? 1

How many people are allergic to both dogs and cats but not allergic to pollen? 7

How many people are allergic to cats only? 18

Step-by-step explanation: i took one for the team

7 0
4 years ago
The arm and blade of a windshield wiper have a total length of 30 inches. The blade is 24 inches long and the wiper sweeps out a
Ipatiy [6.2K]

Answer:

942.5 in²  

Step-by-step explanation:

The formula for the area (A) of a sector of a circle is

A = ½r²θ

where θ is the angle in radians.

1. Convert the angle to radians

θ = 125°  

\theta = 125^{\circ} \times \dfrac{\pi \text{ rad }}{180^{\circ}} =\frac{25}{36} \pi\text{ rad}

2. Area swept out by wiper arm

A = ½r²θ = ½ × (30 in)² × θ = ½ × 900 in²× θ = 450 θ in²

3. Area missed by wiper

A = ½r²θ = ½ × (6 in)² × θ = ½ × 36 in²× θ = 18 θ in ²

4. Area covered by wiper

A = 450 θ in² - 18 θ in² = 432 θ in²

5. Insert the value of θ

A = 432 × 25/36 π in² = 300π in² ≈ 942.5 in²

The area swept out by the wiper blade is 942.5 in².

6 0
4 years ago
Kalyn work at Lowes. Today, he is offering discounts for $15.00 off any lawn mower. A customer comes in and purchases one lawn m
son4ous [18]

Answer:

161.98

Step-by-step explanation:

do 159.99 - 15 which is 144.99. then add 16.99 + 149.99. which is 161.98

8 0
3 years ago
Which correctly lists the three processes that are affected by freeze and thaw cycles? creep, landslide, and deposition depositi
svetlana [45]

Answer:

slump, weathering, and creep

Step-by-step explanation:

edge2020

Freezing and thawing cycle in geology is the process in which water gets in between soil space or rock cracks, freeze in a cold season, and then melt in a warmer season, exerting a force on the soil or rock around it. This force is due to the expansion and contraction of water when it changes from ice to liquid water.

The three geological processes slump, weathering and creep all depend on thawing and freezing cycle among other factors.

<u>Slump</u>: Slump is a type of geological process that occurs when coherent mass of loosely consolidated materials or a rock layer moves a short distance down a slope. The movement of a slump is characterized by sliding along a concave-upward or planar surface. <em>Causes includes earthquake shocks, thorough wetting, freezing and thawing, undercutting, and loading of a slope. </em>

<u>Weathering</u>: This is a geological process that results in the gradual disintegration of rocks into smaller sizes. It is one of the most important soil formation process, and is different from erosion by the degree of movement of the soil formed. Weathering does not move the soil from its origin. <em>Thawing and freezing cycle plays a major role in weathering by helping crack up the rocks and by also tearing the rock apart. plays a major role. </em>

<u>Creep</u>: This is the slow, often imperceptible downslope movement of soil or other debris. The effects of creep is often seen in the presence of physical characteristics like bent trees, tilted fences, and cracked walls.  Creep is caused by multiple factors, of which heaving is likely the most important process. <em>Heaving involves the expansion and contraction of rock fragments, and occurs during cycles of wetting and drying, as well as freezing and thawing.</em>

4 0
4 years ago
Read 2 more answers
.5 in 1.5 hours how much each hour
miv72 [106K]

Answer:

3 per hour

The drawing will help

4 0
4 years ago
Read 2 more answers
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