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nikitadnepr [17]
2 years ago
11

Anyone solve these questions​

Mathematics
1 answer:
Law Incorporation [45]2 years ago
8 0

Answer:

(5) 84° and 96° ; (6) 40° and 50°

Step-by-step explanation:

5) <em>Supplementary angles are in the ratio 7 : 8</em>

So 7x + 8x = 180°

15x = 180

x = 180/15

x = 12

The angles are 7x = 7 * 12 = 84° ; 8x = 8 * 12 = 96°

6) <em>Complementary angles are in the ratio 4 : 5</em>

So 4x + 5x = 90°

9x = 90

x = 90/9

x = 10

The angles are 4x = 4 * 10 = 40° ; 5x = 5 * 10 = 50°

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A guy wire is used to support flagpoles in windy areas. These wires are anchored in the ground to provide constant stability. Yo
r-ruslan [8.4K]

Answer: a) Length of wire to replace old one=9ft

b) Length of wire=3.09ft

Leftover wire=0.91ft

Step-by-step explanation: from the right angle triangle, Tan&=20/15

&=53.13°

Length of wire,x=cos 31.13=x/15

15cos31.13

X=9

b) Tan&=10/6

Tan^-110/6

&=59.05

Length= 6cos59.04

X=3.09

4-3.09=.91= leftover wire

8 0
2 years ago
A sequence starts with 1, -1,... Give a rule that could follow the next 3 terms.
Aleonysh [2.5K]

Answer:

thus next three terms are -3,-5,-7

Step-by-step explanation:

a=1

first find d

-1-1

-2

then a.p= a,a+d,a+2d,a+3d,a+4d

=1,1-2,1+2×-2,1+3×-2,1+4×-2

=1,-1,1-4,1-6,1-8

=1,-1,-3,-5,-7

plz mark as brainlist

4 0
3 years ago
The scores of eight grade students in a math test are normally distributed with a mean of 57.5 and a standard deviation of 6.5.
rewona [7]
Work out the z scores  for   51  and 54 
z1 = (51 - 57.5) / 6.5 = -1
z2 = (64  - 57.5)/6.5 = 1
from tables of normal distribution this value os 3413 + 3413  = 68.26%


so the answer is  c
8 0
3 years ago
Consider the following incomplete deposit slip: Description Amount ($) Cash, including coins 150 75 Check 1 564 81 Check 2 2192
ololo11 [35]
Given that following incomplete deposit slip:

<span>Description                    Amount ($)

Cash, including coins     $150.75
Check 1                          $564.81
Check 2                       $2,192.43
Check 3                       $4,864.01

Subtotal                       $7,772.00

Less cash received       ($721.50)

Total                             $7,050.50

Therefore, the amount of cash the person who filled out this deposit slip received is $721.50
</span>
3 0
3 years ago
Read 2 more answers
Please help i need to finish
elena-s [515]

Answer:

B. \overline A \overline C \cong \overline B \overline D

Step-by-step explanation:

The hypotenuse leg theorem (HL) requires the proof that the hypotenuse and the corresponding leg of the triangles to be equal in length. From the diagram, it can be found that \overline D \overline C is a common (shared) side of both triangles, so the additional fact needed is for the hypotenuses to be the same length.

∴ \overline A \overline C \cong \overline B \overline D is the additional fact needed to prove \triangle ADC \cong \triangle BCD

Hope this helps :)

5 0
2 years ago
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