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TiliK225 [7]
3 years ago
6

22) Find the measure of angle A to the nearest degree. Find the length of side b, to tenths.

Mathematics
1 answer:
mr Goodwill [35]3 years ago
5 0

Answer:

m∠A = 31

b = 13.3

Step-by-step explanation:

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HELP ME PLEASE WILL MARK BRAINLIEST
Natali [406]

Answer:

y = 7, x = 7

Step-by-step explanation:

11y + 13 = 90

11y = (90 - 13)

11y = 77

y = 7

2x + 6 = 20 (because 20 is half of 40)

2x = (20 - 6)

2x = 14

x=7

5 0
2 years ago
X+4/5=11<br> What is the value of x? in simplest form.
Setler [38]
For this example all you have to do is subtract -4/5 from both side


So the answer is 51/5=x
7 0
3 years ago
Read 2 more answers
I need help with this one please
Semmy [17]

Answer:

A

Step-by-step explanation:

a geometric sequence is where we multiply a factor from element to element.

a1 = $900

a2 = 981 = a1 × f = 900 ×

a3 = 1069.29 = a2 × f = a1 × f × f = s1 × f²

an = 900 \times  {f}^{n - 1}

so, now let's try and get f.

remember, 981 = 900 × f

f = 981/900 = 109/100 = 1.09

just to control, we check for s3 :

900 × (1.09)² = 900 × 1.1881 = 1069.29

correct.

so,

a13 = 900 × (1.09)¹² = 2,531.398304

s13 is then the sum of all a1, ..., a13

there is a nice formula for sums of finite sequences

s13 = 900 × (1-f¹³) / (1-f) = 900×(1-(1.09)¹³) / (1-1.09) =

= 900×(1-3.065804612) / (-0.09) =

= 900×(-2.065804612) / (-0.09) = 20,658.04612

.

7 0
3 years ago
The area of a triangle is 84cm,if the base is 14cm. find the height​
bearhunter [10]

Answer:

12

Step-by-step explanation:

(B x H)/2 = Area

do the inverse of this with the answer to find the result

84x2 = 168

168/14 = 12

H = 12

4 0
3 years ago
Read 2 more answers
Seven pens and two pencils costs $6.59. seven pens and five cost $7.55. Find the cost of one pencil and the cost of one pen.
serg [7]
Let one pen be x and one pencil as y, we can produce two equations in terms of x and y

7x+2y=6.59 ------> Equation 1
7x+5y=7.55 ------> Equation 2

We can use either Elimination or Substitution method. Let's try the substitution method

Rearranging equation one to get 7x=6.59-2y and substitute into equation 2, gives
(6.59-2y)+5y=7.55
6.59+3y=7.55
3y=7.55-6.59
3y=0.96
y=0.32

We can use either equation one or equation to work out x

7x+2(0.32)=6.59
7x=6.59-0.64
x=0.85

The price of one pen is $0.85
The price of one pencil is $0.32
5 0
3 years ago
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