3 years ago

Identify the range of the following numbers 7,9,15

Mathematics

1 answer:

Alik [6]3 years ago

7 0

The range is subtracting 15-7.

This equals 8.

Please give brainliest if you can!

Hope this helps! :)

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4. Determine all unknown sides and angles to 1 decimal place.

Ksju [112]

Answer:

The unknown sides are 60.81cm and 51.57cm while the unknown angle is 58degrees

Step-by-step explanation:

4a) Given the following

Opposite side = 38cm (side facing the given angle)

Required

Adjacent and hypotenuse side

According to SOH CAH TOA

$tan \theta = \frac{opp}{hyp}\\tan 32=\frac{38}{hyp}\\hyp=\frac{38}{tan 32}\\hyp=\frac{38}{0.6249}\\hyp= 60.81cm$

Next is to get the adjacent

$Cos 32=\frac{adj}{60.81}\\adj=60.81cos32\\adj=60.81(0.8480)\\adj= 51.57cm$

Next is to get the missing

Since sum of angle in the triangle is 180degrees

32 + 90 + x = 180

122 + x = 180

x = 180 - 122

x = 58degrees

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3 years ago

Write x^5 in expanded form

svetoff [14.1K]

Hi,

x^5 = x * x * x * x * x.

5 0

3 years ago

What is the value of the discriminant for the quadratic equation 2x2− x + 8 = 0?

Alja [10]

2x² <span>- x + 8 = 0
D</span>iscriminant = b² - 4ac
a=2, b=-1, c=8

D = (-1)² - 4 * 2 * 8 = 1 - 64 = -63

7 0

3 years ago

A metal rod is placed in a rectangular box as shown in the figure. How long is the rod? Round your answer to the nearest tenth o

Alexandra [31]

Fist we find the legnth of the diagonal
a^2+b^2=c^2
3^2+4^2=c^2
9+16=c^2
25=c^2
c=5

now the other diagonal
11^2+5^2=c^2
121+25=c^2
146=c^2
sqrt both sides12.083
closest is B

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3 years ago

Approximately 7.5 × 10^5 gallons of water flow over a waterfall each second. There are 8.6 × 10^4 seconds in one day. Approximat

tino4ka555 [31]

Answer:

$6.45 \times {10}^{10}$

6 0

3 years ago