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Tanzania [10]
3 years ago
12

Find the value of A A: 18 B: 21 C: 20 D: 17

Mathematics
2 answers:
statuscvo [17]3 years ago
8 0

These are vertical angles so they are equal so

6a +  11  = 2a + 83  

Solve for A

= 18

-  Prodixy ☕

AnnZ [28]3 years ago
6 0

These are vertical angles so they are equal so

6a +  11  = 2a + 83  

now solve for a

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Help please I’m confused
kipiarov [429]

Answer:

h = 5.4

Step-by-step explanation:

Basically these are 2 similar triangles. That means:

Corresponding sides are proportional.

We can set up a ratio of each triangle separately and equate, cross multiply and solve for "h".

h corresponds to 2.4

2.9 corresponds to 1.3

Setting up the ratio and solving for h:

\frac{h}{2.4}=\frac{2.9}{1.3}\\1.3h=2.4*2.9\\1.3h=6.96\\h=\frac{6.96}{1.3}\\h=5.35

Rounded to 1 decimal place,

h = 5.4

7 0
3 years ago
The side of an Equileteral triangle is 12cm. What is its Area?
elena55 [62]

Answer:

A = 62.35 cm²

Step-by-step explanation:

Use the area formula A = \frac{\sqrt{3}a^2}{4}, where a is the side length.

Plug in the values:

A = \frac{\sqrt{3}(12^2)}{4}

A = \frac{\sqrt{3}(144)}{4}

A = 62.35 cm²

3 0
3 years ago
Can anyone figure this out???
Anestetic [448]
It’s a right triangle because it has a 90 degree angle
5 0
3 years ago
Read 2 more answers
A digital camera costs $185 and the sales tax rate is 5.7%. What is the total cost of the camera after tax
Dovator [93]
♥ To solve find how much this will cost AFTER the price increases.
♥ Solve:
Multiply the original price as it is by: <span>1.057 (5.7 as a decimal would be 0.057, but as i said to keep the original price, the 1 will keep it there.) 
</span>185 * 1.057 = $195.545
Final answer: <span>$195.54</span>
7 0
3 years ago
Solve for x<br> pls show work<br> 1/2*(x - -6)= -1
Pavlova-9 [17]

Answer: x = -4

Step-by-step explanation:

1/2 * (x - (-6)) = 1

distribute

1/2x + 3 = 1

isolate the variable

1/2x = -2

x = - 4

5 0
3 years ago
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