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Marina CMI [18]
3 years ago
14

What is the value of x in the figure? Enter your answer in the box. x =

Mathematics
1 answer:
Arada [10]3 years ago
5 0
Since we know that a right angle equals 90 degrees, we can solve for x. 

90 - 22 = x 
x = 68

See the image I've included for more details. :) 

Hope this helps! 

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Solve for the variable: p - 4.2 = 2. Show your work
djverab [1.8K]

Answer:

p=6.2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
B-4/6=b/2 solve for b
DIA [1.3K]
First you cross multiply.

2*(b-4)=6b

Then distribute the 2.

2b-8=6b

Minus 2b from each side.

-8=4b

Divide each side by 4.

-2=b

So -2 is your answer.
8 0
3 years ago
the length of a rectangular garden is 3 m greater than the width. The area of the garden is 70m squared. find the dimensions of
Lerok [7]
A = l x w

so you know that the length is 3m longer than the width, so you could use a formula to represent that

w = l + 3

you then substitute the second equation into the first to solve for l

70 = l x (l +3)
70 = l^2 + 3l

you could then rearrange the formula and solve for l using the quadratic formula 

0 = l^2 + 3l - 70

l = -3 +- (square root (3)^2 - 4(1)(70)) / 2(1)
l = -3 +- (square root 9 + 280) / 2
l = -3 +- (square root 289) / 2
l = -3 +- 17 / 2

then you solve for the two seperate roots

l = -3 + 17 /2
l = 14 / 2
l = 7

or 

l = -3 - 17 / 2
l = -20 / 2
l = -10

since a length cannot be negative, this root is not viable. therefore l = 7

to solve for w you would use

w = l + 3
w = 7 + 3
w = 10 

hope this helps! if you did not understand a step or concept please let me know!
4 0
3 years ago
25=2y - 15 solve y AND SIMPLIFY HELP ME PLEASEE
sammy [17]

Answer:

y=20

Step-by-step explanation:

25+15=40

2y=40

40/2=20

y=20

8 0
2 years ago
Read 2 more answers
Look at the figures. How can you prove these triangles are congruent?
Novosadov [1.4K]

Answer:

A. \Delta ABC\cong \Delta DEF by the SAS postulate.

Step-by-step explanation:

We have been two triangles. We are asked to determine the theorem by which both triangles could be proven congruent.

We can see that side DF of triangle DEF is equal to side AC of triangle ABC.

We can also see that side BC of triangle ABC is equal to side EF of triangle DEF.

The including angle between sides AC and BC of triangle ABC is equal to the including angle between sides DF and EF of triangle DEF.

Since both triangles have two sides and their included angles equal, therefore, triangle ABC is congruent to triangle DEF by SAS (Side-Angle-Side) congruence and option A is the correct choice.

5 0
3 years ago
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