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4 years ago

2g-3+11-9g what's the algebraic expression .

Mathematics

1 answer:

FromTheMoon [43]4 years ago

4 0

2g-3+11-9g collect the like terms
2g-9g-3+11
answer=-7g+8

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The school Library was building a new one-room addition. the architects drawing shown below uses the scale 1/8 in = 1ft

EastWind [94]

Answer:

the total are is 459

Step-by-step explanation:

3 3/16 divided by 1/8 = 25 1/2 or 25.5

2 1/4 divided by 1/8 = 18

so 18 x 25.5 = 459

hope this helps

8 0

3 years ago

Read 2 more answers

1/3 + 5/6 + 5/12 What is the answer

SOVA2 [1]

1/3 + 5/6 + 5/12

1.583333333333333

3 0

4 years ago

Read 2 more answers

Use a half-angle identity to find the exact value of sinPi/8

stellarik [79]

Answer:

sin(π/8) = (1/2)√(2-√2)

Step-by-step explanation:

Using the half-angle formula ...

$\sin{\dfrac{\theta}{2}}=\sqrt{\dfrac{1-\cos{\theta}}{2}}$

We can let θ = π/4 and simplify the result as follows:

$\sin{\dfrac{\pi}{8}}=\sqrt{\dfrac{1-\cos{(\pi/4)}}{2}}=\sqrt{\dfrac{1-\dfrac{\sqrt{2}}{2}}{2}}=\sqrt{\dfrac{2-\sqrt{2}}{4}}\\\\=\boxed{\dfrac{1}{2}\sqrt{2-\sqrt{2}}}}$

5 0

3 years ago

Read 2 more answers

the hall family garden is 3/4 of an acre. if they divide their garden into 1/8 acre sections, how many sections will they have?

Korvikt [17]

We know that
The hall family garden is ------------> 3/4 of an acre
if they divide their garden into 1/8 acre sections
so
(3/4)/(1/8)-------> (3/4)*(8)--------> 8*3/4------> 24/4-----> 6 sections

the answer is
6 sections

6 0

4 years ago

Given ZW=20. Answer the questions please.

djyliett [7]

a) Corresponding angles of similar figures are congruent, so $\angle B \cong \boxed{\angle Z}$

b) Scale factor = (image)/(preimage). Since we are looking for ABCD to WZYX, this means that WZYX is the image and ABCD is the preimage. Thus, the scale factor is $\frac{25}{10}=\boxed{5/2}$

c) Since the scale factor is 5/2,

$\frac{20}{t}=\frac{5}[2}\\\\40=5t\\ \\ t=\boxed{8}$

8 0

2 years ago