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3 years ago

What is the value of a if (2a + 3) - 3/4 (4a - 8) = 7

Mathematics

1 answer:

Margaret [11]3 years ago

3 0

It would be x=2 becuz that equation simplified is 2x+3-3x+6=7
than it would be -x+9=7 and than subtract 7 and 9 -x=-2 divide x=2

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20a + 158 +6c = 20 (6) + 15 (4) + 6(8) + ? + ?

Jobisdone [24]

Step-by-step explanation:

20a + 158+6c=you will expand the brackets

= so it is 120+60+48

20a+158+6c=120+60+48

20a+ 6c=120+60+48-158

20a+6c=70

20a divide by 20+6c divide by 6 on both side

a + c = 0.58

7 0

3 years ago

The radius of a sphere is 12 units. Find the volume of the sphere. Write your answer in terms of pi.

stiv31 [10]

Answer:

V = 2304π units³

Step-by-step explanation:

The volume (V) of a sphere is calculated as

V = $\frac{4}{3}$ πr³ ( where r is the radius ) , then

V = $\frac{4}{3}$ π × 12³

= $\frac{4}{3}$ π × 1728

= 4π × 576

= 2304π units³

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2 years ago

Y+2=1/3 (x+1) please can you help

miskamm [114]

Equation:

y + 2 = 1/3(x+1)

Assuming you are solving for Y:

y + 2 = 1/3(x) + 1/3(1)

(y + 2) - 2 = (1/3x + 1/3) - 2

y = 1/3x + 1/3 - 2

y = 1/3x - 5/3

7 0

3 years ago

d = {x|x is a whole number} e = {x|x is a perfect square between 1 and 9} f = {x|x is an even number greater than or equal to 2

Alexxandr [17]

$D=\{0;\ 1;\ 2;\ 3;\ 4;...\}\\E=\{4\}\\F=\{2;\ 4;\ 6;\ 8\}\\\\D\ \cap\ F=\{2;\ 4;\ 6;\ 8\}=F\to\boxed{c.}\\conclusion\ F\subset D$

5 0

3 years ago

Read 2 more answers

I will give u brianliest

Bond [772]

Answer:

1: $3$ × $2$

2: $y^6$

Step-by-step explanation:

Multiply the numbers: $y(^3^*^2)$

$3*2 = 6$

Write it without exponents:

$y * y * y * y *y *y$ so $6y$ .

$(y^3)^2$

Apply exponent rule : $(a^b)^c=a^b^c,$ assuming $a\geq 0$

$(y^3)^2=y^3^*^2$

$=y^3^*^2$

Multiply the numbers: $3 * 2 = 6$

$= y^6$

Hope I helped! If so, may I get Brainliest and a Thanks?

Thank you, have a good one! =)

6 0

3 years ago