Ask question

Ask question

All categories

3 years ago

11

Add the polynomials. (7y^2+2y-9)+(-3y^2-y) = ?

1 answer:

Vikki [24]3 years ago

3 0

$(7 y^{2} + 2y - 9) + (-3 y^{2} -y) \\ 
 \\ 
= 4y^{2} + y - 9$

You might be interested in

Find the volume of the cone.

lisabon 2012 [21]

Answer:

thanks for the question mam.

7 0

3 years ago

Find the measure of angle y. Round your answer to the nearest hundredth. (please type the numerical answer only) A right triangl

andriy [413]

For this case we have the following trigonometric relationship:
cos (y) = 8/13
Clearing the value of and we have:
y = Acos (8/13)
Calculating the angle we have:
y = 52.02012756 degrees
Rounding off we have:
y = 52.02 degrees
Answer:
the measure of angle and is:
y = 52.02 degrees

4 0

3 years ago

Read 2 more answers

Whats 234445x237=? fhrerjtiognmiovmenr

Naddika [18.5K]

Answer:

234445×237=55,563,465

5 0

3 years ago

Read 2 more answers

Find the 12th term of the arithmetic sequence given a3=116 and a7=180<br>

SOVA2 [1]

Answer:

Step-by-step explanation:

nth term = a +(n-1)d

a3 = 116 ; a + 2d = 116 ---------(i)

a7 = 180; a + 6d = 180 -------(ii)

multiply (ii) by -1. so a will be eliminated

a + 2d = 116 ---------(i)

(ii)*-1 <u>-a - 6d = -180</u> -------(ii) { Now add the two equations}

- 4d = -64

d = -64/-4

d = 16

Plug in the value of d in equation (i),

a + 2*16 = 116

a + 32 = 116

a = 116 - 32

a = 84

12th term = 84 + 11* 16 = 84 + 176 = 260

5 0

3 years ago

Can someone please answer this question please answer it correctly please show work

Zina [86]

Answer:

34) A

35) C

36) D

Step-by-step explanation:

34) The perimeter of a triangle is equal to the sum of the lengths of its sides

Sides: (6.2p + 4.5q) + (3.4p - 0.7r) + (2.9r - 4.1q)

Combine like terms (same variables)

(6.2p + 3.4p) + (4.5q - 4.1q) + (2.9r - 0.7r)

9.6p + 0.4q + 2.2r

A

35)

Time possibilities

1 hour - $3 - $5 = $-2 No

2 hours - $6 - $5 = $1 Yes

3 hours - $9 - $5 = $4 Yes

4 hours - $12 - $5 = $7 Yes

5 hours - $15 - $5 = $10 Yes

6 hours - $18 - $5 = $13 Yes

7 hours - $21 - $5 = $16 Yes

8 hours - $24 - $5 = $19 No

9 hours - $27 - $5 = $22 No

The possible hours that Ms. Barnes can park are 2 - 7 hours

The only inequality graph that represents all of these values is C

36)

<h3> $(-\frac{4}{7}) / (-\frac{3}{4}) * (-2\frac{1}{3})$ </h3>

Convert to improper fractions

<h3> $(-\frac{4}{7}) / (-\frac{3}{4}) * (\frac{-7}{3})$ </h3>

Divide by finding the reciprocal

<h3> $(-\frac{4}{7}) * (-\frac{4}{3}) * (\frac{-7}{3})$ </h3><h3 /><h3> $\frac{16}{21}$ * $-\frac{7}{3}$ </h3><h3 /><h3> $\frac{-16}{9}$ </h3>

Convert back to a mixed number

$-1\frac{7}{9}$

D

Hope this helps :)

8 0

3 years ago