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3 years ago

Help me and you get good luck for the rest of 2021 XD

Mathematics

2 answers:

MaRussiya [10]3 years ago

7 0

Answer:

i dont know if its right but i think 5% bc

Step-by-step explanation:

15 devied by 3 is 5 but i dont know

ikadub [295]3 years ago

4 0

Answer:

John ate 20% of the cookies

Step-by-step explanation:

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Simplify: 6x^-2 a) 1/6x^2 b) 6/x^2 c) x^2/6 d) 1/36x^2

Salsk061 [2.6K]

Answer:

The correct answer choice is option B. 6/x^2

Step-by-step explanation:

8 0

3 years ago

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Solve for d. d + 67 = 87 р Submit

Vsevolod [243]

Answer:

$d=20$

Step-by-step explanation:

$d+67=87$

Subtract 67 from both sides

$d=20$

Hope this is helpful

7 0

3 years ago

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A figure is composed of a semicircle and a right triangle. Determine the area of the shaded region. Use 3.14 for π and round to

Aliun [14]

Answer:

$A=9.5\ ft^2$

Step-by-step explanation:

we know that

The area of the shaded region is equal to the area of triangle plus the area of semicircle

$A=\frac{1}{2}bh+\frac{1}{2}\pi r^{2}$

we have

$b=4\ ft$

Find the height of the right triangle applying the Pythagorean Theorem

$5^2=h^2+4^2$

$h^2=9\\h=3\ ft$

The radius of the semicircle is half the height of triangle

$r=3/2=1.5\ ft$

substitute in the formula

$A=\frac{1}{2}(4)(3)+\frac{1}{2}(3.14)(1.5)^{2}$

$A=6+3.5=9.5\ ft^2$

5 0

3 years ago

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Please help logarithms!

nlexa [21]

Given:

$\log_34\approx 1.262$

$\log_37\approx 1.771$

To find:

The value of $\log_3\left(\dfrac{4}{49}\right)$ .

Solution:

We have,

$\log_34\approx 1.262$

$\log_37\approx 1.771$

Using properties of log, we get

$\log_3\left(\dfrac{4}{49}\right)=\log_34-\log_349$ $\left[\because \log_a\dfrac{m}{n}=\log_am-\log_an\right]$

$\log_3\left(\dfrac{4}{49}\right)=\log_34-\log_37^2$

$\log_3\left(\dfrac{4}{49}\right)=\log_34-2\log_37$ $[\log x^n=n\log x]$

Substitute $\log_34\approx 1.262$ and $\log_37\approx 1.771$ .

$\log_3\left(\dfrac{4}{49}\right)=1.262-2(1.771)$

$\log_3\left(\dfrac{4}{49}\right)=1.262-3.542$

$\log_3\left(\dfrac{4}{49}\right)=-2.28$

Therefore, the value of $\log_3\left(\dfrac{4}{49}\right)$ is $-2.28$ .

5 0

3 years ago

Kiesha and her classmates wrote proportions for the reduction of a triangle. A larger and smaller triangle have corresponding he

MrMuchimi

Answer:

the 2nd one

Step-by-step explanation:

mecause its new=original

6 0

3 years ago

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