I have 93, 80 and 94 my homework is worth 10% so what us my grade?

Mathematics

2 answers:

Gnesinka [82]3 years ago

8 0

It's an 89% on your homework currently

Minchanka [31]3 years ago

5 0

I think about 26.7
or something around there

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(9a^2 + 7a + 8) - (2a^2 + 5a + 1)

Sergio [31]

Answer: 7a^2+2a+7

Step-by-step explanation:Distribute the Negative Sign:

=9a2+7a+8+−1(2a2+5a+1)

=9a2+7a+8+−1(2a2)+−1(5a)+(−1)(1)

=9a2+7a+8+−2a2+−5a+−1

Combine Like Terms:

=9a2+7a+8+−2a2+−5a+−1

=(9a2+−2a2)+(7a+−5a)+(8+−1)

=7a2+2a+7

8 0

2 years ago

Big ideas math 15.3 question 14

KiRa [710]

Do you have a picture with the question?

6 0

2 years ago

One Solution no solution infinitely many solutions 3x + 9 + 4x + x = _x+_

ss7ja [257]

All you need to do it combine like terms.

3x + 9 + 4x + x

(3x + 4x + x) + 9

8x + 9

i hope this was helpful for you!

8 0

2 years ago

When you finally retire, you want to be able to draw from an account an annual salary of $100,000 for 20 years. Approximately ho

tankabanditka [31]

PV = P(1 - (1 + r)^-n) / r; where P is the periodic withdrawal = $100,000; r = rate = 5% = 0.05; n = number of periods = 20 years.

PV = 100000(1 - (1 + 0.05)^-20) / 0.05 = 100000(1 - 1.05^-20) / 0.05 = 100000(1 - 0.3769) / 0.05 = 100000(0.6231) / 0.05 = 100000(12.4622) = 1,246,221 ≈ $1,250,000

4 0

3 years ago

Read 2 more answers

A trapezoid has a height of 6 feet. The measures of the bases are 12 units and 18

Alik [6]

The area of this trapezoid is 90 square feet.

<h3>Explanation : </h3>

Before we know the answer, let's we know the formula first. The formula for count the area of trapezoid is :

$\boxed {\bold {A = \frac {(a+b) \times h}{2}}}$