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2 years ago

PLS HELP - What is the product?

Mathematics

1 answer:

Lunna [17]2 years ago

4 0

Answer:

<u>C. 2x² + 7x - 4</u>

Step-by-step explanation:

Given:

(2x-1)(x+4)

= 2x * (x+4) + (-1) * (x+4) ⇒ Distributive property.

= 2x² + 8x - x - 4 ⇒ Combine like terms.

= 2x² + 7x - 4

The answer is option C. 2x² + 7x - 4

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Bill earns $12 per hour and works at most 40 hours per week identify the independent and dependent quantity in the situation and

alukav5142 [94]

Independent: number of hours
Dependent: Earned income
Domain: Between and including, 0 and 40 hours
Range: Between and including, 0 and 480$

4 0

3 years ago

Calculate the side lengths a and b to two decimal places.

Zinaida [17]

Answer:

$a=10.92 units$

$b=14.51 units$

Step-by-step explanation:

We are given that c=6 units

$\angle A=43^{\circ}$

$\angle B=115^{\circ}$

We have to find the side length a and b.

We know that sum of angles of a triangle =180 degrees

$\angle A+\angle B+\angle C=180$

Substitute the values then we get

$43+115+\angle C=180$

$158+\angle C=180$

$\angle C=180-158=22^{\circ}$

sine law: $\frac{a}{sin A}=\frac{b}{sin B}=\frac{c}{sin C}$

$\frac{a}{sin 43^{\circ}}=\frac{6}{sin 22^{\circ}}$

$a=\frac{6}{sin 22^{\circ}}\times sin 43^{\circ}$

$a=10.92 units$

$\frac{b}{sin 115^{\circ}}=\frac{6}{sin 22^{\circ}}$

$b=\frac{6}{sin 22^{\circ}}\times sin 115^{\circ}=14.51$

$b=14.51 units$

6 0

2 years ago

25 points need ASAP

mars1129 [50]

Answer:

68%

Step-by-step explanation:

17 divided by 25 =0.68

make the decimal into a precent

3 0

2 years ago

Read 2 more answers

Question is attached.

lions [1.4K]

1. a
2. c
3. b
hope this helps

8 0

2 years ago

If the simple interest on $4000 for 3 years is $720, then what is the interest rate?

solong [7]

Answer:

0.06% annually

Step-by-step explanation:

Divide $720 by 3. We get $240, so we know this is the amount of interest we get per year. Dividing $240 by $4,000 gives us

$\frac{240}{4000} = 0.06$

4 0

2 years ago