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Sergio [31]
2 years ago
11

Which statement is the inverse of the following? If the sum of the measures of two angles is 90°, then the angles are complement

ary angles.
A. If two angles are complementary angles, then the sum of the measures of the two angles is 90°.
B. If two angles are not complementary angles, then the sum of the measures of the two angles is not 90°.
C. If the sum of the measures of two angles is not 90°, then the angles are not complementary angles.
D. If two angles are complementary angles, then the sum of the measures of the two angles is not 90°.
Mathematics
2 answers:
Stolb23 [73]2 years ago
6 0

Answer:

If the sum of the measures of two angles isn’t 90°, then they are not complementary.

Step-by-step explanation:

PLATO test mark me brainliest

lara [203]2 years ago
3 0
A. if two angles are complementary angles, then the sum of the measures of two angles is 90°.
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You have one type of nut that sells for $4.50/lb and another type of nut that sells for $8.00/lb. You would like to have 28 lbs
-Dominant- [34]

Answer:

I will need 26.4 pounds of the expensive nuts and 1.6 pounds of the cheap nuts.

Step-by-step explanation:

Since I have one type of nut that sells for $ 4.50 / lb and another type of nut that sells for $ 8.00 / lb, and I would like to have 28 lbs of a nut mixture that sells for $ 7.80 / lb, to determine how much of each nut will I need to obtain the desired mixture, the following calculation must be performed:

8 x 0.95 + 4.5 x 0.05 = 7.825

8 x 0.94 + 4.5 x 0.06 = 7.79

0.94 x 28 = 26.32

26.4 x 8 + 1.6 x 4.5 = 218.4

218.4 / 28 = 7.8

Thus, I will need 26.4 pounds of the expensive nuts and 1.6 pounds of the cheap nuts.

7 0
2 years ago
write a number that is greater than 1 in scientific notation . Explain how you know it is greater than 1 .
Gemiola [76]

Answer: 9.3 because it’s a decimal .

Step-by-step explanation:

6 0
2 years ago
The length of a parking Lot is 5 yards more than the width. If the area of the parking lot is 66 square yards, find the dimensio
Brums [2.3K]

Answer:

  6 yards by 11 yards

Step-by-step explanation:

Factors of 66 are ...

  66 = 1·66 = 2·33 = 3·22 = 6·11

The last pair of factors differ by 5, so represent the solution to the problem.

The width of the parking lot is 6 yards; the length is 11 yards.

7 0
3 years ago
O is the centre of the circle, EF is a tangent, angle BCE = 28°, angle ACD = 31°
andriy [413]

Answer

a. 28˚

b. 76˚

c. 104˚

d. 56˚

Step-by-step explanation

Given,

∠BCE=28°  ∠ACD=31°  &  line AB=AC .

According To the Question,

  • a. the angle between a chord and a tangent through one of the end points of the chord is equal to the angle in the alternate segment.(Alternate Segment Theorem) Thus, ∠BAC=28°

  • b. We Know The Sum Of All Angles in a triangle is 180˚, 180°-∠CAB(28°)=152° and ΔABC is an isosceles triangle, So 152°/2=76˚

        thus , ∠ABC=76° .

  • c. We know the Sum of all angles in a triangle is 180° and opposite angles in a cyclic quadrilateral(ABCD) add up to 180˚,

Thus, ∠ACD + ∠ACB = 31° + 76° ⇔ 107°

Now, ∠DCB + ∠DAB = 180°(Cyclic Quadrilateral opposite angle)

∠DAB = 180° - 107° ⇔ 73°

& We Know, ∠DAC+∠CAB=∠DAB ⇔ ∠DAC = 73° - 28° ⇔ 45°

Now, In Triangle ADC Sum of angles in a triangle is 180°

∠ADC = 180° - (31° + 45°)  ⇔  104˚

   

  • d. ∠COB = 28°×2 ⇔ 56˚ , because With the Same Arc(CB) The Angle at circumference are half of the angle at the centre  

For Diagram, Please Find in Attachment  

4 0
3 years ago
Convert 0.86 into a fraction and reduce the answer to lowest terms
Andrei [34K]

Answer:

43/50

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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