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3 years ago

Can someone help me pls

Mathematics

1 answer:

fomenos3 years ago

5 0

1.would be a right triangle because that little square and the lines connected to it form a right angle

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Solve this system of linear equations. Separate

zepelin [54]

Answer:

Step-by-step explanation:

-9x + y = 16

12x + y = -5

9x - y = -16

21x = -21

x = -1

9 + y = 16

y = 7

(-1,7)

5 0

3 years ago

An equation is shown below: 8(2x – 14) + 13 = 4x – 27 Part A: Write the steps you will use to solve the equation, and explain ea

blsea [12.9K]

1) Distribute 8(2x-14) + 13 = 4x - 27 then simplify like terms to get: 16x - 99 = 4x - 27.
2) Subtract 4x on both sides and at the same time add 99 to both sides to get: 12x=72.
3) Divide both sides by 12 to get x=6.
PART B: 6 makes the equation true because you just solved for it.

8 0

3 years ago

the lengths of the sides of a triangle are consecutive odd integers.if the perimeter of the triangle is 27 what is are the lengt

Umnica [9.8K]

The lengths of each side are 9

5 0

3 years ago

Read 2 more answers

*****50 POINTSSSS*****

defon

Answer:

<h3>Given</h3>

m∠REG = 78°
mAR = 46°
ER ≅ GA

<h3>Solution</h3>

m∠GAR = 180° - m∠REG = 180° - 78° = 102° (supplementary angles sum to 180°)
m∠TAR = 1/2mAR = 1/2(46°) = 23° (tangent chord angle is half the size of intercepted arc)
m∠GAN = 180° - (m∠TAR + m∠GAR) = 180° - (23° + 102°) = 55° (straight angle is 180°)
mAG = 2m∠GAN = 2(55°) = 110°
mRE = mAG = 110° (as ER ≅ GA)
mGE = 360° - (mAG + mAR + mRE) = 360° - (110° + 46° + 110°) = 94° (full circle is 360°)

6 0

3 years ago

The number of books donated to a library is increasing by 25% each month. Initially, there were 80 books donated to the library.

lions [1.4K]

Answer: There would be 745 books at the end of month 10.

Step-by-step explanation:

Since we have given that

Number of books initially = 80

Rate of growth = 25% = 0.25

t = 10 months

We need to find the number of books that are expected at the end of month 10.

As we know the formula for "Compound interest":

$A=P(1+\dfrac{r}{100})^t\\\\A=80(1+\dfrac{25}{100})^{10}\\\\A=80(1+0.25)^{10}\\\\A=80(1.25)^{10}\\\\A=745.05$

Hence, there would be 745 books at the end of month 10.

4 0

3 years ago