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snow_lady [41]
4 years ago
12

Write the product as a trinomial.(k – 1)(k – 4)

Mathematics
1 answer:
SashulF [63]4 years ago
5 0
(k - 1)(k - 4)

Use FOIL to solve this.

First
k * k
Outer
k * -4
Inner
-1 * k
Last
-1 * -4

k^2 - 4k - 1k + 4

k^2 - 5k + 4 is the trinomial.
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Find the percent of change from 95 pounds to 75 pounds. Round to the nearest tenth of a percent if necessary.
mel-nik [20]

Your percentage of change would have to be about 21.05, but the full answer is 21.05263. Since we are going to need to round to the nearest percent, you would have 22% decrease. The difference in the change is -20.

6 0
4 years ago
These triangles ARE similar! Which reason proves it?
andrew-mc [135]

Answer:

SAS

Step-by-step explanation:

From the image attached below, in triangle ABC, AB = 15, AC = 20 while in triangle ADE, AD = 12 and AE = 16

Two triangles are said to be similar if they have the same shape, that is either their corresponding angles are the same or their corresponding sides are proportional.

For both triangle ABC and triangle ADE, they have the same angle which is ∠A. Also:

\frac{AD}{AB}=\frac{12}{15}=\frac{4}{5}

\frac{AE}{AC}=\frac{16}{20}=\frac{4}{5}

Since two sides of triangle ABC are in the same proportion as two sides of triangle ADE and they have the same angle, therefore they are similar based on the SAS  (side-angle-side) similarity

4 0
3 years ago
Solve the following equation.<br><br> 5x+23=53<br><br> A) x=5<br> B) x=6<br> C) x=1<br> D) x=7
Zolol [24]

Answer:

6

Step-by-step explanation:

5×+23= 53

5×+23-23= 53-23

5x=30

30÷5=6

6 0
3 years ago
Read 2 more answers
How do I write two trillion ninety nine in number form?
TiliK225 [7]

Answer:

here

Step-by-step explanation:

2.000.000.099

4 0
3 years ago
Easy math question Help this is due today
garri49 [273]

Answer:

6. 4.8m

7. a. 48 b. 31.4 c. 170

Step-by-step explanation:

6. 4.5^2 x 1.6^2 = c^2

   22.81 = c^2

   square root of 22.81 = 4.8

7.

a. 12^2 x 16^2 = c^2

   400 = c^2

   square root of 400 is 20, 20 + 12 + 16 = 48

b. 9^2 x b^2 = 13^2

   88 = b^2

   square root of 88 is 9.4, 9.4 + 9 + 13 = 31.4

c. 25^2 x b^2 = 65^2

   3600 = c^2

   square root of 3600 is 60, 60 + 60 + 25 + 25 = 170

4 0
3 years ago
Read 2 more answers
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