3 years ago

Need help ASAP, Tysm I really appreciate it

Mathematics

1 answer:

Andrew [12]3 years ago

3 0

23-8x+5x+1

23-3x+1

24-3x

Answer: -3x+24

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gladu [14]

6 greeting cards for 23.40 is the best price! It is $3.90 per each card.

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2 years ago

Solve for y in the following equation. x+2y=z

Galina-37 [17]

Answer:

The Answer:

Step-by-step explanation:

x+2y=z

minus x both sides

2y=z-x

divide by 2 both sides

The Answer:

$y = \frac{z - x}{2}$

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(2a² – b) (за² + 3b)

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Answer:

a^4+3a^2-3b^2

Step-by-step explanation:

$\hookrightarrow \: (2 {a}^{2} - b)(3 {a}^{2} + 3b) \\ \hookrightarrow \:2 {a}^{2} (3 {a}^{2} + 3b) - b(3 {a}^{2} + 3b) \\ \hookrightarrow \:6 {a}^{4} + 6 {a}^{2} b - 3 {a}^{2} b - 3 {b}^{2} \\ \hookrightarrow \:{a}^{4} + 3 {a}^{2} b- 3 {b}^{2}$

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2 years ago

2(rt-4+2) when r=5 and t=2

Whitepunk [10]

Answer:

Step-by-step explanation:

2(5x2-4+2)=2(10-4+2)=2x4=8

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2 years ago

the ratio of the measures of the sides of a triangle is 21:8:14. if the perimeter of the triangle is 215 ft, find the length of

Anestetic [448]

Answer:

see explanation

Step-by-step explanation:

the perimeter is the sum of the 3 sides of the triangle

add the parts of the ratio 21 + 8 + 14 = 43

divide the perimeter by 43 to find the value of one part of the ratio

$\frac{215}{43}$ = 5 ft ← 1 part of the ratio, hence

21 parts = 21 × 5 = 105 ft

8 parts = 8 × 5 = 40 ft

14 parts = 14 × 5 = 70 ft

the 3 sides of the triangle are 105 ft, 40 ft and 70 ft

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3 years ago