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Elina [12.6K]
3 years ago
13

Please help me solve this question

Mathematics
1 answer:
Anastasy [175]3 years ago
7 0

Answer:

50

Step-by-step explanation:

Use pythagoreom theorem to determine the length of the hypotenuse:

a² + b² = c²

- assign side a to 30 and side b to 40

30² + 40² = c²

90 + 160 = c²

250 = c²

Now square root both sides to isolate side c:

√250 = √c²

50 = c

side c = 50

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QUESTION 1
RoseWind [281]

Answer:

1) (D)

2) (B)

3) (C)

Step-by-step explanation:

1) Amount borrowed = $1380 (P)

APR =13% or 0.13 (R)

Time = 15 months (T) = 15/12

Interest amount = \frac{P*R*T}{100}

                           =  \frac{1380*13*15}{1200}

                          = $224.25

Total amount  = 1380+224.25

                        = $1604.25

Monthly payment = 1604.25/15 = $106.95 (D)

2) Amount borrowed = $2240

APR = 15% or 0.15

Time = 18 months

Interest = \frac{P*R*T}{100}

           = \frac{2240*15*18}{1200}

          = $504 (B)

3) Amount borrowed = $5500

APR = 11.5% or 0.115

Time = 5 years

n= 12 (compounded monthly)

M = \frac{P}{\frac{1-(1+r/n)^{-nt}}{r/n} }

   = \frac{5500}{\frac{1-(1+\frac{0.115}{12} )^{-60}}{\frac{0.115}{12}} }

  = $120.95 (C)

6 0
4 years ago
Read 2 more answers
Please I need help thank you
masha68 [24]
A. (-) * (-) * (-) * (-) = positive
B. (-) * (-) * (-)  = negative
C. (-) * (-) = positive
D. (-) * (-) * (-)  = negative but times 0 = 0

so answer is 
B. product will be negative
7 0
3 years ago
Volume? Correct answers please
goldfiish [28.3K]

Answer:

V = 1385.44

Step-by-step explanation:

The equation for volume is V = π r 2 h! Where V = volume, r = radius <em>(half the diameter)</em>, and h = height. Now lets substitute what we know into this equation!

<em>Since we are giving the diameter (14) we must divide by 2 to find the radius.</em>

                         14 ÷ 2 = 7

Radius = 7

Height = 9

V = ?

Time to plug these values in!

V = π 7^{2} (9)

<em>We have to distribute </em><em>pi to 7 square that term </em><em>and then </em><em>multiply the value by 9</em><em>. </em>

<em />

V = 1385.44

Hope this Helps! :)

<em>Have any questions? Ask below in the comments and I will try my best to answer.</em>

-SGO

7 0
3 years ago
use a protractor to find the measure of each angle. Write each angle and its measure in a box ordered by the measure of the angl
NikAS [45]

Answer:

Part 1) and Part 2) in the procedure

Step-by-step explanation:

step 1

<em>Find the measures of angles</em>

we know that

The sum of the angles A, B and C must be equal to 360 degrees

Using a protractor

The measures of angles are

∠A=140°

∠B=100°

∠C=120°

step 2

Ordered the measures of the angles from least to greatest

1) ∠B=100°

2) ∠C=120°

3) ∠A=140°

7 0
4 years ago
How many positive integers less than 20 are multiples of 3 but not 2?
Ray Of Light [21]
So all the multiples of 3 are...
3, 6, 9, 12, 15, 18
and of those, the ones not divisible by 2 are...
3, 9, 15
4 0
3 years ago
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