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Alja [10]
3 years ago
6

Find the missing base (b1) of the trapezoid. Dimensions are in CM.

Mathematics
1 answer:
Alenkinab [10]3 years ago
5 0

Answer:

b1 = 9 cm

Step-by-step explanation:

The formula for area of a trapezoid is

A = 1/2 (b1+b2) *h

We know Area = 135 CM ^2, Height = 10 CM, b2 = 18 cm

Substituting these in

135 = 1/2 (b1+18) *10

Multiply 1/2*10

135 = 5 (b1+18)

Divide both side by 5

135/5 = 5/5 (b1+18)

27 = b1+18

Subtract 18 from each side

27-18 = b1+18-18

9 = b1

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Line them all up by 100th, 10ths and Ones Place! Hope that this helps you

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In circle C, what is mFH?<br><br> 31°<br> 48°<br> 112°<br> 121°
natta225 [31]

we know that

The measurement of the external angle is the semi-difference of the arcs it comprises.

so

Step 1

<u>Find the measure of the arc AJ</u>

m∠BDE=\frac{1}{2} *[measure\ arc\ AJ-measure\ arc\ BE]

in this problem we have

m∠BDE=37\°

measure\ arc\ BE=38\°

substitute in the formula

37\°=\frac{1}{2} *[measure\ arc\ AJ-38\°]

74\°=[measure\ arc\ AJ-38\°]

measure\ arc\ AJ=74\°+38\°=112\°

Step 2

<u>Find the measure of the arc FH</u>

m∠FGH=\frac{1}{2} *[measure\ arc\ AJ-measure\ arc\ FH]

in this problem we have

m∠FGH=32\°

measure\ arc\ AJ=112\°

substitute in the formula

32\°=\frac{1}{2} *[112\°-measure\ arc\ FH]

64\°=[112\°-measure\ arc\ FH]

measure\ arc\ FH=112\°-64\°=48\°

therefore

<u>the answer is</u>

the measure of the arc FH is 48\°

3 0
4 years ago
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Write the center and radius of the Circle <br> (x + 3)^2 + (y - 1)^2 = 9<br> Show all work plsss
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The radius of the circle is = 8
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14x17 distributive property to solve it
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Answer:

238

Step-by-step explanation

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State true or false. (i) Cube of any odd number is even. F (ii) A perfect cube does not end with two zeros.T (iii) If square of
lilavasa [31]

i. Cube of any odd number is even. False

ii.  A perfect cube does not end with two zeros. True

iii.  If square of a number ends with 5, then its cube ends with 25. False

iv. There is no perfect cube which ends with 8. False

v. The cube of a two digit number may be a three digit number. False

vi.  The cube of a two digit number may have seven or more digits. False

vii. The cube of a single digit number may be a single digit number. True

<h3>Reasons </h3>

i.  Cube of any odd number is even. This statement is false because the cube of odd numbers are also odd

ii.  A perfect cube does not end with two zeros. This statement is True because the cube of a two digit number cannot be a 3 digit number and therefore cannot end with two zeros.

iii.  If square of a number ends with 5, then its cube ends with 25. This statement is False

Using the illustration

35^2 = 35 x 35= 1225 , its square ends with 5

35^3= 35 x 35 x 35= 42875 which ends with 75

iv.  There is no perfect cube which ends with 8. This statement is False.

Using the illustration, the cube of 2 is given thus

2 * 2 * 2 = 8

The cube of 2 ends with 8

v. The cube of a two digit number may be a three digit number. This statement is False.

Using the illustration, 10 is a two digit number

10 * 10 * 10 = 1000

The cube of 10 which is a two digit number is not a three digit number and same applies to all two digit numbers

vi  The cube of a two digit number may have seven or more digits. This statement is False because the cube of a two digit number can only be a four digit number.

vii. The cube of a single digit number may be a single digit number. This statement is True because the cube of a single digit number can be a single, two or three digit number.

Learn more about cube numbers here:

https://brainly.in/question/6133463

#SPJ1

6 0
2 years ago
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