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rosijanka [135]
3 years ago
14

Please help mhanifa!!! I will mark brainliwst !

Mathematics
1 answer:
inn [45]3 years ago
3 0

Answer:

<h3>Q 1</h3>

U and S are congruent and sum of 4 angles is 360.

  • 130 + 2*80 + m∠T = 360
  • m∠T = 360 - 290
  • m∠T = 70

Correct choice is B

<h3>Q 2</h3>

∠1 and ∠3 are complementary, AC is angle bisector and ∠2 is right angle since diagonals of a kite are perpendicular

  • ∠DAC≅∠BAC
  • m∠1 = 39°
  • m∠3 = 90° - 39° = 51°

Correct choice is C

<h3>Q 14</h3>
  • A- guaranteed
  • B- guaranteed
  • C- guaranteed
  • D- not guaranteed as it could be a rhombus
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Find the slope of the line that passes through (6,10) and (1,1)
Jet001 [13]

Answer:X2 = 5

Y2 = 4

ΔX = 4

ΔY = 3

θ = 36.869897645844°

Equation of the line:

y = 0.75x + 0.25

When x=0, y = 0.25

When y=0, x = -0.33333333333333

OR

X2 = -3

Y2 = -2

ΔX = -4

ΔY = -3

θ = 216.86989764584°

Equation of the line:

y = 0.75x + 0.25

When x=0, y = 0.25

When y=0, x = -0.33333333333333

5 0
3 years ago
Read 2 more answers
9(14-5)-42 evaluate expression
Ulleksa [173]

Good evening

Answer:

<h2>39</h2><h2 />

Step-by-step explanation:

9(14-5)-42 = 9×9 - 42

                = 81 - 42

                = 39

________________

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8 0
3 years ago
Find the missing dimension of the cylinder. Round your answer to the nearest whole number.
irakobra [83]

Answer:

8 cm

Step-by-step explanation:

volume of a cylinder is v=pi x r^2 x h

substitute in what we know

3785= pi x r^2 x 19

3785=59.69 x r^2

subtract 59.69 from both sides

3725.31=r^2

square root of 3725.31

61

square root of 61

= about 8

6 0
2 years ago
Consider Frank's math test scores for the semester. Find the interquartile range of the scores.
musickatia [10]
Okay so you put the numbers in order:
70, 74, 81, 82, 83, 91, 94.

Then you find the median which will be Q2:
82.

Once you have the total median, you find the midpoint of the first and last part:
70, 74, 81. Midpoint/Q1=74
83, 91, 94. Midpoint/Q3=91

Now that you have that, you subtract Q3 and Q1.
91-74=17

17 is your IQR.
4 0
3 years ago
Decrease £843 by 91% rounded to 2 DP
34kurt

Answer:

Percent (%)' means 'out of one hundred':

p% = p 'out of one hundred',

p% is read p 'percent',

p% = p/100 = p ÷ 100.

91% = 91/100 = 91 ÷ 100 = 0.91.

100% = 100/100 = 100 ÷ 100 = 1.

Decrease number by 91% of its value.

Percentage decrease = 91% × 843

New value = 843 - Percentage decrease

Calculate the New Value

New value =

843 - Percentage decrease =

843 - (91% × 843) =

843 - 91% × 843 =

(1 - 91%) × 843 =

(100% - 91%) × 843 =

9% × 843 =

9 ÷ 100 × 843 =

9 × 843 ÷ 100 =

7,587 ÷ 100 =

75.87

Calculate absolute change (actual difference)

Absolute change (actual difference) =

New value - 843 =

75.87 - 843 =

- 767.13

Proof.

Calculate percentage decrease:

Percentage decrease =

91% × 843 =

91 ÷ 100 × 843 =

91 × 843 ÷ 100 =

76,713 ÷ 100 =

767.13

Step-by-step explanation:

Hope it is helpful....

6 0
2 years ago
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