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2 years ago

Pls pls help ASAP first correct answer gets brainleist

Mathematics

2 answers:

Leno4ka [110]2 years ago

3 0

Answer:

12ch/a

Step-by-step explanation:

hope this helped!

Aloiza [94]2 years ago

3 0

Answer: $\frac{12ch}{a}$

This is the same as writing (12ch)/a

===================================================

Explanation:

When multiplying fractions, we multiply the numerators together separately from the denominators.

$\frac{21c^2}{a}\times \frac{4h}{7c} = \frac{21c^2*4h}{a* 7c}$

Then notice the 21 over 7 reduces to 3.

Also, simplifying the c^2 over c part leads to c

Nothing else cancels.

We're left with this: $\frac{3c*4h}{a} = \frac{12ch}{a}$

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Two girls had apples for 14 days. They had 512 in total. Each girl had an equal number of apples. How many apples did each girl

frosja888 [35]

You have to divide and 512/14=36 and 8/14 and that simplified is 36 and 4/7.

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4 years ago

For football tryouts at a local school, 12 coaches and 42 players will split into groups. Each group have the same number of coa

melamori03 [73]

<span>The biggest number of groups that can be formed is 6, because six is the greatest common factor of 12 and 42. There will be 2 coaches in each group because 6 x 2 = 12 and 7 players in each group because 7 x 6 = 42.</span>

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3 years ago

Read 2 more answers

Given the statement, LEI=BNZ and the diagrams shown, determine the value of x.

WARRIOR [948]

Answer:

x = 20

Step-by-step explanation:

Given the triangles are congruent then corresponding angles are congruent, so

∠ N = ∠ E

To calculate ∠ E subtract the sum of the 2 given angles from 180

∠ E = 180 - (x - 5 + 4x - 10)

= 180 - (5x - 15)

Equate ∠ N and ∠ E

5x - 5 = 180 - 5x + 15 ( add 5x to both sides )

10x - 5 = 195 ( add 5 to both sides )

10x = 200 ( divide both sides by 10 )

x = 20

5 0

3 years ago

Will someone please check my answers asap?? will give a brainliest

Usimov [2.4K]

Your choices are correct.

1. adding -3 to the function shifts its graph downward by 3 units.

2. 7^(2x) = (7^2)^x = 49^x

3. f(0) = -6; g(0) = -3, f(0) = 2×g(0)

3 0

3 years ago

Help me asap! I will give you marks

Law Incorporation [45]

Recall the binomial theorem.

$(a+b)^n = \displaystyle \sum_{k=0}^n \binom nk a^{n-k} b^k$

1. The binomial expansion of $\left(1+\frac x3\right)^7$ is

$\left(1 + \dfrac x3\right)^7 = \displaystyle\sum_{k=0}^7 \binom 7k 1^{7-k} \left(\frac x3\right)^k = \sum_{k=0}^7 \binom 7k \frac{x^k}{3^k}$

Observe that

$k = 1 \implies \dbinom 71 \left(\dfrac x3\right)^1 = \dfrac73 x$

$k = 2 \implies \dbinom 72 \left(\dfrac x3\right)^2 = \dfrac73 x^2$

When we multiply these by $8-9x$ ,

• $8$ and $\frac73 x^2$ combine to make $\frac{56}3 x^2$

• $-9x$ and $\frac73 x$ combine to make $-\frac{63}3 x^2 = -21x^2$

and the sum of these terms is

$\dfrac{56}3 x^2 - 21x^2 = \boxed{-\dfrac73 x^2}$

2. The binomial expansion is

$\left(2a - \dfrac b2\right)^8 = \displaystyle \sum_{k=0}^8 \binom 8k (2a)^{8-k} \left(-\frac b2\right)^k = \sum_{k=0}^8 \binom 8k 2^{8-2k} a^{8-k} b^k$

We get the $a^6b^2$ term when $k=2$ :

$k=2 \implies \dbinom 82 2^{8-2\cdot2} a^{8-2} b^2 = 28 \cdot2^4 a^6 b^2 = \boxed{448} \, a^6b^2$

6 0

1 year ago

Pls pls help ASAP first correct answer gets brainleist ​

Pls pls help ASAP first correct answer gets brainleist