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4 years ago

In right triangle ABC, m

Mathematics

2 answers:

Tresset [83]4 years ago

7 0

The angle would be 48

Sophie [7]4 years ago

7 0

It is a right triangle, and we know that angles of the triangle add up to 180.

So,

90 + 42 + ∠B = 180
132 + ∠B = 180
∠B = 48

Hope this helps :)

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Essential: Solve the proportions<br> step by step

vazorg [7]

Answer:

The value of r= $\frac{-106}{47}$

The value of x= $\frac{83}{32}$

Step-by-step explanation:

Given that,

A) $\frac{2r-2}{7r+10} = \frac{9}{8}$

Now,

$\frac{2r-2}{7r+10} = \frac{9}{8}$

8(2r-2)=9(7r+10)

16r-16=63r+90

-16-90=63r-16r

-(16+90)=47r

-106=47r

r= $\frac{-106}{47}$

B) $\frac{x+4}{9} = \frac{3(x-2)-1}{5}$

Now,

$\frac{x+4}{9} = \frac{3(x-2)-1}{5}$

5(x+5)=9[3(x-2)-1]

5x+25=9[3x-6-1]

5x+25=9[3x-7]

5x+25=27x-63

25+63=27x+5x

83=32x

x= $\frac{83}{32}$

6 0

4 years ago

How many terms are in the expression shown below?<br> 5x + 3y - 6

tatiyna

Answer: 3 terms

Step-by-step explanation:

each term is separated by the plus or minus symbol

8 0

3 years ago

Read 2 more answers

What? how do u even do this

vivado [14]

x(greater than or equal to)5

3 0

3 years ago

The value of z when 4(.5z-10)=10z+4

GREYUIT [131]

Start by expanding the left hand side:

$4 \times 0.5 z + 4 \times (-10) = 10z+4$

which leads to

$2z -40 = 10z+4$

Now we want to move all terms involving the variable to the left hand side, and all constant terms on the right hand side:

$2z-10z = 4+40$

Simplify both sides by summing like terms:

$-8z = 44$

Divide both sides by -8 to solve for x:

$z = \cfrac{44}{-8} = -\cfrac{22}{4} = -\cfrac{11}{2} = -5.5$

3 0

3 years ago

What is 0.000000000525 in scientific notation

Ne4ueva [31]

Hello there!

It is 5.25 x $10^{-10}$ .

Hope This Helps You!
Good Luck :)

7 0

4 years ago