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3 years ago

Help I do not understand this math

Mathematics

2 answers:

Rina8888 [55]3 years ago

6 0

Answer:

(Sorry, I only remember how to do 1 through 7)

1. -8.86

2. 17.5

3. -6.12

4. 1.66

5. 11/24

6. 4/5

7. 14

Step-by-step explanation:

1. -5.51-3.35=-8.86

2. -59.5/-3.4=17.5

3.0.85*-7.2=-6.12

4. -0.59+2.25=1.66 (The double negatives become positive)

5. 3/8+ 1/12=11/24

6. (-24/25)/(-6/5)=4/5

7. 28/2=14

MAVERICK [17]3 years ago

5 0

Answer:The first is 2556

Step-by-step explanation:

beacuse all you is have to do is x

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Help (5a-3a^3)*(4a-1)

ivann1987 [24]

Answer:

$-12a^{4} + 3a^{3} + 20a^{2} -5a$

Step-by-step explanation:

$(5a-3a^{3} )$ • $(4a-1)$

Let's use FOIL (first, outer, inner, last) to solve this. We'll multiply the terms by one another in that fashion.

$20a^{2} - 5a - 12a^{4} + 3a^{3}$

Rearrange in decreasing exponents.

$-12a^{4} + 3a^{3} + 20a^{2} -5a$

3 0

3 years ago

Solve 4+2h < -3 please help me and please show work

anastassius [24]

4 + 2h < -3
2h < -7
h < -3.5

x ∈ (-∞, -3.5)

7 0

3 years ago

5/6+2/9= in simplest form I NEED this plz help

tensa zangetsu [6.8K]

Answer: 1 1/18

Step-by-step explanation: 5/6 + 2/9 I know this might seem like common, but the Numerator is the top number of a fraction and the Denominator is the bottom a fraction. When the numerator and the denominator are the same such as 5/5 the fraction equals one (I know its real fancy). When you're multiplying a fraction that equals on by another fraction its really just multiplying by a fancy looking 1 that's disguised as a fraction such as 5/5. If you simplify it it goes to the fraction it was as long it was simplified to the max (5/5 x 1/2 = 5/10= 1/2)

First, you need to find a like denominator, which is 18

Then, you got to multiply each fraction to make them have common denominators ...multiply 5/6 by 3/3 ( 3/3 is just a fancy way of saying one) 5/6 x 3/3 = 15/18....multiply 2/9 by 2/2 (which is just another fancy way of saying one ) 2/9 x 2/2=4/18
Next you add them but only the numerator 15/18 + 4/18 = 19/18
Finally, you change the the fraction into a mixed number 1 and 1/18

6 0

3 years ago

A rancher wants to fence in an area of 1000000 square feet in a rectangular field and then divide it in half with a fence down t

frosja888 [35]

The shortest length of the fence used by the rancher in a rectangular field of 1000000 square feet is 4899 ft.

<h3>What is the area of a rectangle?</h3>

The area of a rectangle is a region enclosed in four corners where two opposite sides are equal. The area of the rectangle is mathematically expressed as:

Area of a rectangle = length(x) × breath(y)

1000000 sq.ft = (x) × (y) ---- (1)

However, to determine the fencing, we have:

Length of fencing = 2x + 2y