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leva [86]
3 years ago
10

What is the product? (5r + 2) (3r -4)

Mathematics
1 answer:
Tanzania [10]3 years ago
7 0

Answer:

15r² - 14x - 8

Step-by-step explanation:

  1. 5x * 3x = 15x²
  2. 5x * -4 = -20x
  3. 2 * 3x = 6x
  4. 2 * -4 = -8

Now add your products,

15x² + -20x + 6x + -8 = 15x² - 14x - 8

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Solve the equation by factoring.<br> x² + 2x - 63 = 0<br> x = -9, [?]
xeze [42]

Step-by-step explanation:

x² + 2x - 63 = 0

(x+9)(x-7)=0

x=-9 x=7

7 0
1 year ago
Help me I need help fast it is due soon!
Arte-miy333 [17]

Answer:

400 square meters

Step-by-step explanation:

We can first solve this problem with each unit representing 1 centimeter, and then scale up at the very end. The shape that we have a parallelogram. The base is 8 cm, and the height is 2 cm. The formula for the area of a parallelogram is just bh, so the area of the parallelogram is 16 square centimeters. However, now we scale up. Since each centimeter correlates to 5 meters, each little box will correlate to 25 square meters. Therefore, 16 \cdot 25 = \boxed{400} square meters is our answer

6 0
3 years ago
The sum of John’s and Matt’s ages is 42. The difference of their ages is 6. If Matt is older than John, what are their ages? Mat
jasenka [17]
Matt is 24 and John is 18. 24 - 18 is 6. And 24 + 18 would equal 42.
3 0
3 years ago
Read 2 more answers
Can someone help me with this pls
Oksi-84 [34.3K]

Answer:

x = 1/3 or x = -2/3

Step-by-step explanation:

Let's solve your equation step-by-step.

9x2+3x−2=0

For this equation: a=9, b=3, c=-2

9x2+3x+−2=0

Step 1: Use quadratic formula with a=9, b=3, c=-2.

x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}

x=\frac{-(3)\pm\sqrt{(3)^2-4(9)(-2)} }{2(9)}

x=\frac{-3\pm\sqrt{81} }{18}

x = 1/3 or x = -2/3

4 0
2 years ago
Read 2 more answers
How many times can 6 go into 58
swat32
58 ÷ 6 = 9/2/3

i am a mathematics teacher. if anything to ask please pm me
4 0
3 years ago
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