All categories

3 years ago

WILL MARK BRAINLYIST

Mathematics

1 answer:

xz_007 [3.2K]3 years ago

8 0

A.AAA know this becouse i took the test

You might be interested in

6x-9-2(1-x)=X+9 solve this

Kay [80]

Answer:

x = 20/7

x = 2 6/7

Step-by-step explanation:

Hi there !

6x - 9 - 2(1 - x) = x + 9

6x - 9 - 2 + 2x = x + 9

6x + 2x - x = 9 + 9 + 2

8x - x = 20

7x = 20

x = 20/7

x = 2 6/7

Good luck !

3 0

3 years ago

Out of the 21 students in mrs Clark’s class by 3/7 of the class are boys

saul85 [17]

Answer:

There are 9 boys and 12 girls in mrs Clark's class

Step-by-step explanation:

We are given that mrs Clark has 21 students, of which 3/7 are boys

In order to find the number of boys, we multiply 21 by 3/7 which results in 9

This means there are 9 boys and then we just simply subtract 9 from 21 in order to find the number of girls 21-9=12

therefore there are 9 boys and 12 girls in mrs Clark's class

7 0

3 years ago

Read 2 more answers

How do you re-write this using only positive exponents? 3x^-4/3 (1+2x^5/3)

Kay [80]

$\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\
a^{-{ n}} \implies \cfrac{1}{a^{ n}}
\qquad \qquad
\cfrac{1}{a^{ n}}\implies a^{-{ n}}
\qquad \qquad 
a^{{{ n}}}\implies \cfrac{1}{a^{-{{ n}}}}
\\\\\\
and\qquad \quad a^{\frac{{ n}}{{ m}}} \implies \sqrt[{ m}]{a^{ n}} \qquad \qquad
\sqrt[{ m}]{a^{ n}}\implies a^{\frac{{ n}}{{ m}}}\\\\
-------------------------------\\\\
$

$\bf \cfrac{3x^{-\frac{4}{3}}}{3(1+2x^{\frac{5}{3}})}\implies \cfrac{3}{3}\cdot \cfrac{1}{x^{\frac{4}{3}}}\cdot \cfrac{1}{(1+2x^{\frac{5}{3}})}\implies \cfrac{1}{x^{\frac{4}{3}}(1+2x^{\frac{5}{3}})}$

$\bf \cfrac{1}{x^{\frac{4}{3}}+2x^{\frac{5}{3}}x^{\frac{4}{3}}}\implies \cfrac{1}{x^{\frac{4}{3}}+2x^{\frac{5}{3}+\frac{4}{3}}}\implies \cfrac{1}{x^{\frac{4}{3}}2x^{\frac{9}{3}}}\implies \cfrac{1}{x^{\frac{4}{3}}+2x^3}
\\\\\\
\cfrac{1}{\sqrt[3]{x^4}+2x^3}\implies \cfrac{1}{x\sqrt[3]{x}+2x^3}\implies \cfrac{1}{x(\sqrt[3]{x}+2x^2)}$

8 0

4 years ago

Calculate the length of the circumference of a circle with a diameter of 7 cm

AysviL [449]

C = 21.98 cm.........

3 0

3 years ago

hari's weekly allowance varies on the number of chores he does.He received $16 in allowance the week he did 12 chores, and $14 i

ad-work [718]

Answer:

Step-by-step explanation:

8 0

3 years ago