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KATRIN_1 [288]
3 years ago
11

Can you help me find the missing value to the nearest hundredth?! cos□= 2/5 Thank you ❤

Mathematics
1 answer:
Aleksandr [31]3 years ago
7 0

Answer:

66.42°

Step-by-step explanation:

Given

cos ? = \frac{2}{5} , then

? = cos^{-1} (\frac{2}{5} ) ≈ 66.42° ( to the nearest hundredth )

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Find the area of the figure. Round to the nearest tenth
Reika [66]

Answer:

Find the area of each triangle and then add it up. As you are aware, to find the area of a triangle the equation is B times Height divided by 2.  And to make it easier do the top left triangle and the top right triangle, add them together and then divide that by 2.

Step-by-step explanation:

3 time 5 equals 15 divided by 2 equals 7.5

5 times 8 equals 40 divided by 2 equals 20

7.5 plus 20 equals 27.5

27.5 times 2 equals 55

therefor your answer should be 55m

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2 years ago
What is the difference between centroid orthocentre and circumcentre​
Sergeu [11.5K]

Answer:

centroid- the point of concurrency of the <em>medians.</em>

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3 0
3 years ago
HELPPPP
AVprozaik [17]

Answer:

The smaller number is: 8

The bigger number is: 20

Step-by-step explanation:

Ok let's say the two numbers are x and y.

x is the smaller one, and y is the bigger one.

This is the equation to find x:

x + 4y = 88

x + y = 28

x - x + 4y - y = 88 - 28

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3 years ago
Given: circle k(O), m AM=125°, m EF=31°, m∠MAF=75°. Find: m∠AME
Bess [88]

Answer:

58°

Step-by-step explanation:

If m AM=125°, then m∠AOM=125°.

If m∠MAF=75°, then m∠MOF=150° (because central angle MOF subtends on the same arc as inscribed angle MAF).

Thus,

m∠FOA=360°-150°-125°=85°.

If mEF=31°, then m∠EOF=31° (as central angle subtended on the arc EF).

Hence,

m∠EOA=m∠EOF+m∠FOA=31°+85°=116°.

Angle EOA is central angle subtended on arc EA, angle AME is inscribed angle subtended on arc AE, thus

m∠AME=1/2m∠EOA=58°.

7 0
3 years ago
Solve the system of equations by the substitution method:<br> 4x-y = 35<br> 7x + 6y = 38
Leokris [45]

Answer:

x=8 and y=−3

8 0
3 years ago
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