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3 years ago

I need help with this (9x+7)+(x+3)

Mathematics

2 answers:

coldgirl [10]3 years ago

3 0

Answer:

9x^2+34x+21

Step-by-step explanation:

distribute all the numbers

Slav-nsk [51]3 years ago

3 0

I got 10(x+1) or 10x+10

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Mike owes his brother $9.55. He borrows $10.75 more from his brother. Which of the following best represents Mike's debt to his

Radda [10]

Answer:

C - $20.30

Step-by-step explanation:

-9.55 + (-10.75) = - 20.3

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2 years ago

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A quadratic function f is given <br> F(x)= x^2_4x+6 <br> Express f in standard form ?

Dennis_Churaev [7]

Hey there!

In the equation mentioned,

f represents function.

Hope my answer helps!

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2 years ago

17. Find x. Round to the nearest tenth if necessary. Assume that segments that appear to be

AlexFokin [52]

Answer:

x=19

Step-by-step explanation:

9*(9+15)=8*(8+x)

9*(24)=8(x+8)

216=8x+64

216-64=8x+64-64

152=8x

152/8=8x/8

19=x

x=19

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2 years ago

In parallelogram ABCD, AD = 12 in, m∠C = 46º, m∠DBA = 72º. Find the area of ABCD

dmitriy555 [2]

Answer:

The area of parallelogram ABCD is $78.42 \mathrm{in}^{2}$

Explanation:

Given:

AD = 12 in

$m \angle C=46^{\circ}$

$m \angle D B A=72^{\circ}$

To Find:

The area of parallelogram ABCD=?

Solution:

When we construct the parallelogram with the given data, we get a parallelogram formed by 12 cm as one side and an angle with 46 degrees.

The area of the parallelogram can be calculated by $a b * \sin (a n g l e)$

Substituting the value of a=12 we have

$\text { Area of parallelogram }=12 * \text { bsin } 46$

<u>To find the value of b, </u>

We know that area of a triangle can be expressed as,

$\text { Area of triangle }=(A b / 2) \sin (\text {angle})$

So,

$(12 * B D / 2) * \sin 46=(A B * B D / 2) * \sin 72$

Cancelling BD and 2 on both sides we get,

$12 * \sin 46=A B * \sin 72$

$A B=12 * \frac{\sin 46}{\sin 72}$

Therefore,

$b=\frac{12 \sin 46}{\sin 72}$

Substituting the value of b,

$=12 *\left(\frac{12 \sin 46}{\sin 72}\right) * \sin 46$

=78.42

So the area of the parallelogram is $78.42 \mathrm{in}^{2}$

6 0

3 years ago

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Marco buys a certain brand of shampoo for a supplier $7.25 per bottle he sells it to his customers at a makeup 25% what would th

SCORPION-xisa [38]

Answer:

Markup= 1.81

Sale price =9.06

Step-by-step explanation:

The markup is the original prices times the markup rate

markup = 7.25 * 25%

= 7.25 * .25

=1.8125

We round this to the nearest cent

=1.81

The new sale price will be the original price + the markup

7.25+1.81

9.06

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3 years ago

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