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3 years ago

Can someone help me work out this please

Mathematics

1 answer:

Gnesinka [82]3 years ago

4 0

This answer is 15:) hope this helps

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What is the surface area of a cube with side lengths of 1/7<br><br> Please help

-BARSIC- [3]

Answer: 0.122449

Step-by-step explanation:

If one side is 1/7, first convert that into a decimal, which is 0.14286. Than square that 0.14286 x 0.14286= 0.020408. That’s the area of one square. Now multiply that by 6 (the number of sides in a cube) and you get 0.122449.

4 0

4 years ago

What is x? 400=12(x + 25)

Gnesinka [82]

Answer:

Step-by-step explanation:

thats what i got from google

4 0

3 years ago

Read 2 more answers

Suppose that triangle ABC is a right triangle with a right angle at C and hypotenuse C. Also note that a is the length of the si

gavmur [86]

Answer:

The value of a is 7.4833. The value of $A=29.9262^0$ and $B=60.0735^0$ .

Step-by-step explanation:

Consider the provided information.

The required figure is shown below:

We need to find the value of a.

Calculate the value of a by using Pythagorean theorem.

$a^2+b^2=c^2$

$a^2+(13)^2=(15)^2$

$a^2=225-169$

$a^2=56$

$a=7.4833$

Hence, the value of a is 7.4833.

Now find the value of angle A as shown:

$\sin A=\frac{a}{c}$

$\sin A=\frac{7.4833}{15}$

$A=sin^{-1}(0.4989)$

$A=29.9262^0$

Find the value of angle B as shown:

$\sin B=\frac{b}{c}$

$\sin B=\frac{13}{15}$

$B=sin^{-1}(0.8667)$

$B=60.0735^0$

Hence, the value of $A=29.9262^0$ and $B=60.0735^0$ .

6 0

3 years ago

Help Me Please I would appreciate it!!!!

valentina_108 [34]

9514 1404 393

Answer:

y +2 = (1/4)(x +1)

Step-by-step explanation:

The given line is in slope-intercept form:

y = mx + b

where the slope (m) is -4 and the y-intercept (b) is +13.

For the perpendicular line, we need a slope that is the opposite reciprocal, or ...

-1/m = -1/(-4) = 1/4

A suitable form for the desired equation is the point-slope form:

y -k = m(x -h) . . . . . . line with slope m through point (h, k)

For m=1/4 and (h, k) = (-1, -2), the equation of the line is ...

y +2 = (1/4)(x +1)

7 0

3 years ago

What is 3(4 plus 7) -5•4 divided by 2

goblinko [34]

I am not positive, but I believe 23. sorry in advance if I’m wrong.

4 0

4 years ago