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solong [7]
3 years ago
9

-8(5b + 2) -7(b - 5)

Mathematics
2 answers:
Zanzabum3 years ago
7 0

Answer:

-47b + 19

Step-by-step explanation:

skad [1K]3 years ago
4 0
-40b-16-7b+35
-47b-16+35
-47b+19
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Evaluate <br> 3^-3*3^4*3*3^-5
miss Akunina [59]
To multiply exponents with like bases, simply add the exponents...

3^-3 × 3^4 × 3 × 3^-5 =

add exponents across, remember just 3 means 3^1.

-3 + 4 + 1 + -5 = -3

answer is 3^-3
8 0
3 years ago
The national debt of a country is
olganol [36]

Answer:  3 \times 10^{13}

Explanation:

Highlight the first digit on the very left (2). The 7 right next to it means we'll round that 2 up to a 3. Every other digit becomes a zero.

The number 27,895,168,401,112 rounds to 30,000,000,000,000 which is the number 30 trillion.

It converts to the scientific notation 3 \times 10^{13} because we basically start with 3.0 and move the decimal point 13 spots to the right to arrive at 30 trillion as shown above.

8 0
3 years ago
Use the given map to find the coordinates of a point that lies on the directed line segment from c to d and partitions the segme
Lelechka [254]

Given:

The line segment is passing through the points (-9,-3) and (8,5),

Divide the segment in the ratio of 1:4.

Use the formula,

\begin{gathered} (\frac{mx_2+nx_1}{m+n},\frac{my_2-ny_1}{m+n}) \\ (x_1,y_1)=(-9,-3) \\ (x_2,y_2)=(8,5) \\ m\colon n=1\colon4 \end{gathered}

It gives,

\begin{gathered} (\frac{1(8)+4(-9)}{1+4},\frac{1(5)+4(-3)}{1+4}) \\ (-\frac{28}{5},-\frac{7}{5}) \end{gathered}

Answer:

(-\frac{28}{5},-\frac{7}{5})

8 0
1 year ago
Can someone please answer this question please help please answer it correctly and please show work please help I need it please
mr_godi [17]

Answer:

Step-by-step explanation:

24)

200= 3(21) + 4x

200= 63 +4x

-63   -63

137= 4x

divide each side by 4

34 = x

c

25)

.5(pi)= about 1.6

1.6(2.5)= 4

c

44)

equation-     T= 12.17+0.75v

105.75= 12.17 + .75v

-12.17    -12.17

93.58= .75v

divide each side by .75

answer 125

3 0
3 years ago
Read 2 more answers
If p is true and q is false, the pq is Always sometimes never true.
Vinvika [58]
Answer:
pq is never true
8 0
3 years ago
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