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2 years ago

write an expression containing x-terms and constants. The x-terms schould combine to 7x and the constants should sum to 13

Mathematics

1 answer:

S_A_V [24]2 years ago

6 0

2x+12+6x+1-x You are adding up 2x and 6x and deduct 1x so you get 7x You add up 12 and 1 which gives 13

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The following equation is given.

SashulF [63]

5x² - 9x + 45 = 0

Δ = b² - 4.a.c

Δ = (-9)² - 4 . 5 . 45

Δ = 81 - 4. 5 . 45

Δ = -819

There's no real root.

7 0

2 years ago

What is the length of an arc defined by a 60 degree central angle in a circle with a radius of 5 in.?

Natali [406]

Answer:

5.24 in

Step-by-step explanation:

The arc length is calculated as

arc = circumference × fraction of circle

= 2πr × $\frac{60}{360}$

= 2π × 5 × $\frac{1}{6}$

= $\frac{10\pi }{6}$ ≈ 5.24 in (2 dec. places )

3 0

3 years ago

A leaking pond loses 20 gallons of water in 49 hours. How many gallons of water will it lose in 5 hours? Round to one decimal pl

White raven [17]

Answer:

12.25

Explanation

49/20 (which is the same as (49÷20)) =2.45

Multiply 2.45 by the amount of hours (5)

$2.45 \times 5 = 12.25$

=12.25

5 0

2 years ago

Read 2 more answers

Solve for 7 and 8 please

Masteriza [31]

To divide exponents they have to have the same base and then you just subtract the bottom exponent from the top exponent.

7) k × 3^9
----------- =
3^5

k × 3^9-5 =
k × 3^4 =
k × 81 = 81k

8) x^4 × y^10 × 2^11
------------------------ =
y^8 × 2^7

x^4 × y^10-8 × 2^11-7 =
x^4 × y^2 × 2^4 =
x^4 × y^2 × 16=
16x^4y^2

8 0

2 years ago

How do you solve this as a solution 9(2 + 3x) < 72

laila [671]

Answer:

x <2

Step-by-step explanation:

9(2 + 3x) < 72

Divide each side by 9

9/9 *(2 + 3x) < 72/9

2+3x < 8

Subtract 2 from each side

2+3x-2 < 8-2

3x<6

Divide each side by 3

3x/3 <6/3

x <2

7 0

2 years ago