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Genrish500 [490]
3 years ago
15

Please help me it would help a lot

Mathematics
2 answers:
nignag [31]3 years ago
7 0
4x-55 would be what’s ced
Bec 4x-5
Lyrx [107]3 years ago
6 0

Answer:

x=11°

<Bec = 33°

<Ced = 39°

Step-by-step explanation:

That's a right angle so it would be 90 degrees angle.

18+3x+4x-5=90

Lets simplify it to make it easier to work out by collecting like terms.

First all the variable 3x+4x=7x

Then the numbers 18+-5=13

13(-13)+7x = 90(-13)take away 13 from both sides

(Opposite operators EG, Add becomes subtract)

7x = 77 then divide 7 from both sides

x=11

Then work out

3x11=33 degrees

4x11=44-5=39 degrees

To double check 39+33+18=90 degrees

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In the figure, angle D measures 127° and angle A measures 75°.
almond37 [142]

Angles C and D are supplementary, or they add up to 180.

b = 180 - 75 - (180 - 127)

Hope this helps!

4 0
2 years ago
Read 2 more answers
Find the surface area of the pyramid. the surface area of the pyramid is __in squared.
iVinArrow [24]

Answer:

561.08in^{2}

Step-by-step explanation:

S A = lw + l \sqrt{(\frac{w}{2})^{2}  + h^{2}  } + w \sqrt{(\frac{l}{2})^{2} + h^{2}  }

SA = 14(14) + 14 \sqrt{(\frac{14}{2})^{2} + 11^{2}  }+ 14 \sqrt{(\frac{14}{2})^{2} + 11^{2}  } = 561.08in^{2}

4 0
2 years ago
Dx+hy=j   what does x=
DerKrebs [107]
dx+hy=j\\\\dx=j-hy\ /:d\ \ \ \ and\ \ \ \ d \neq 0\\\\x= \frac{j-hy}{d}
3 0
3 years ago
Read 2 more answers
The sum of four consecutive even integers is -28
mina [271]
I guess you want to find the 4 numbers

x + x + 2 + x + 4 + x + 6 = -28
4x + 12 = - 28
4x =  - 40
x = -10

so the numbers are -10, -8, -6 ,-4.

8 0
3 years ago
Evaluate the degree of the polynomial (y3 – 2) ( y2 + 11), expand using algebraic expressions and answer.
posledela

Answer:

y^5+11y^3-2y^3-22

Step-by-step explanation:

5 0
3 years ago
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