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3 years ago

What is the product?

Mathematics

1 answer:

koban [17]3 years ago

6 0

Answer:

A. 48r² - 10r + 3

Step-by-step explanation:

Solve (6r - 1) × (-8r - 3)

1. Distribute 6r and -1 (into -8r - 3):

-48r² - 18r + 8r + 3

2. Combine like terms (-18r and 8r):

-48r² - 10r + 3

So, your answer is -48r² - 10r + 3

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You estimate that there are 45 marbles in a jar. The actual amount is 82 marbles. Find the percent error. Round to the nearest t

Nataly_w [17]

Answer:

45.1

Step-by-step explanation:

The original amount is 82

But the wrong amount is 45

So we will have to calculate the percentage for the error

82-45

So %error= 37/82 ×100

=3700/82

=45.121~45.1( to nearest tenth)

So the final answer is 45.1%

6 0

3 years ago

What is the surface area of the box if it is scaled up by a factor of 10? Boxes Dimensions 7in Height 6in Length 2in Width

VladimirAG [237]

Answer:

13,600 $in^{2}$

Step-by-step explanation:

(h = 7, l = 6, w = 2) 10

70, 60, 20

2(h × w) + 2(h × l) + 2(w × l)

= 2(70 × 20) + 2(70 × 60) + 2(20 × 60)

= 2(1400) + 2(4200) + 2(1200)

= 2800 + 8400 + 2400

= 13,600

4 0

3 years ago

True or false the foci of an ellipes can be outside the ellipes

Romashka-Z-Leto [24]

Answer:

false

Step-by-step explanation:

foci are usually in the ellipse. that foci is where the ellipse is drawn from

6 0

3 years ago

On a shelf containing 53 comic books, 21 are Marvel titles, 17 are DC titles, 12 are Dark Horse titles, and 3 are Harvey titles.

Marizza181 [45]

Answer:

68% or $\frac{36}{53}$

Step-by-step explanation:

In order to find the probability of Geraldo selecting a comic that isn't a DC title, we have to subtract the amount of comics that are DC titles from the total amount of comics and then divide that number by the total amount of comics.

53 - 17 = 36

36/53 = 0.679

Geraldo has a 68% chance of choosing a comic that isn't a DC title.

8 0

3 years ago

The dashed triangle is the image of the pre-image solid triangle.

valina [46]

Answer:

4

Step-by-step explanation:

The solid triangle dilated to become the dashed triangle.

Compare two corresponding sides. For example, the vertical side of the solid triangle measures 3 units. The vertical side of the dashed triangle measures 12 units. 12/3 = 4. The dilation is 4. The scale factor is 4.

6 0

3 years ago

Read 2 more answers