3 years ago

Divide -b⁷ + 3b³ + 4b³ + 3b² by 2b²plz solve this fast plz

Mathematics

1 answer:

Nikolay [14]3 years ago

3 0

Answer:

$- \frac{1}{2} ( {b}^{6} - 7 {b}^{2} - 3)$

See image for solution

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Rachel works at a bookstore. On Tuesday, she sold twice as many books as she did on Monday. On Wednesday, she sold 6 fewer books

cricket20 [7]

M + t + w = 19
t = 2m
w = t - 6....w = 2m - 6

m + (2m) + (2m - 6) = 19
5m - 6 = 19
5m = 19 + 6
5m = 25
m = 25/5
m = 5 <===Monday

t = 2m
t = 2(5)
t = 10 ... Tuesday

w = 2m - 6
w = 2(5) - 6
w = 10 - 6
w = 4 .... Wednesday

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3 years ago

Solve the triangle. Round your answers to the nearest tenth.

Rasek [7]

Answer:

m∠A ≈ 43°

m∠B ≈ 55°

mBC ≈ 20

Step-by-step explanation:

Law of Sines: $\frac{a}{sinA} =\frac{b}{sinB} =\frac{c}{sinC}$

Step 1: Find m∠B

$\frac{29}{sin82} =\frac{24}{sinB}$

Step 2: Solve for ∠B

29sinB = 24sin82°

sinB = 24sin82°/29

B = sin⁻¹(24sin82°/29)

B = 55.038°

Step 3: Find m∠A

180 - (55.038 + 82)

180 - 137.038

m∠A = 42.962°

Step 4: Find BC

$\frac{29}{sin82} =\frac{BC}{sin42.962}$

Step 5: Solve for BC

29sin42.962° = BCsin82°

BC = 29sin42.962°/sin82°

BC = 19.9581

4 0

3 years ago

Solve the system: x + 5y = -15 -2x -10y = 30*

Ksju [112]

Answer:

x= -5/3 y-5

Step-by-step explanation:

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3 years ago

Help for this will give 5 stars and brainliest if correct and a thanks.

Soloha48 [4]

Answer:

7/4

Step-by-step explanation:

Convert the fractions into improper fractions. (7/6)*(3/2)

Then multiply across. 21/12

Simplify the fraction. 7/4

4 0

3 years ago

Read 2 more answers

What is the solution to the following question 2^ -3x+2=0

Trava [24]

Answer: x= −16

Step-by-step explanation:

6 0

3 years ago

Divide -b⁷ + 3b³ + 4b³ + 3b² by 2b²plz solve this fast plz​

Divide -b⁷ + 3b³ + 4b³ + 3b² by 2b²plz solve this fast plz