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Alenkasestr [34]
3 years ago
12

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
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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 ?
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In the equation mentioned,

f represents function.

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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)

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216-64=8x+64-64

152=8x

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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  is78.42 \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 is78.42 \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

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We round this to the nearest cent

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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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