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3 years ago

14 - (17 - 5) + 8 I keep getting the wrong answer please help

Mathematics

1 answer:

Furkat [3]3 years ago

4 0

Answer:

The answer is 10

Step-by-step explanation:

14 -(17 - 5) + 8
14 -17 + 5 + 8
-3 + 13 = 10
10 is your answer.

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Solve for x: x - 15 = -30

Mrac [35]

Answer:

x = -15

Step-by-step explanation:

x - 15 = -30

add 15 to both sides

x = -15

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3 years ago

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How do i solve this (give steps please)

anygoal [31]

Answer:

42x - 21 - 9x^2

Step-by-step explanation:

basically do the area of the whole rectangle then di the area of one of the empty spaces. then subtract the value of the empty space three times because there are three empty spaces.

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Please help me answer these questions

sp2606 [1]

Answer: 1. D. IV

2. A. I

3. A. I

Step-by-step explanation: 1. You have to move the quadrilateral (the shape) 7 units to the right and down 5 units. You can see that it is in the fourth quadrant.

2. You have to flip the shape over the y-axis. It moves to the first quadrant.

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3 years ago

Help please, i don't understand it!!!!

velikii [3]

$V=\dfrac{4}{3}\pi r^3\ \ \ |\cdot\dfrac{3}{4}\\\\\pi r^3=\dfrac{3V}{4}\ \ \ \ |:\pi\\\\r^3=\dfrac{3V}{4\pi}\ \ \ |:r\\\\r^2=\dfrac{3V}{4\pi r^2}$

Substitute to S.A.

$S.A.=4\pi r^2=4\pi\cdot\dfrac{3V}{4\pi r^2}=\dfrac{3V}{r}$

$\dfrac{S.A.}{V}=\dfrac{4\pi r^2}{\frac{4}{3}\pi r^3}=\dfrac{3}{r}$

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3 years ago

What is the area of rhombus ABCD? Enter your answer in the box. Do not round at any steps.

Sladkaya [172]

Answer:

16 square units.

Step-by-step explanation:

We know that any diagonal of a rhombus divides the rhombus into two equal parts having the same area.

Now. the area of Δ ABC can be calculated from the coordinates of its three vertices.

Here, A(-1,4), B(3,2) and C(-1,0) are given.

Hence, the area of Δ ABC will be

$\frac{1}{2} |-1(2-0)+3(0-4)-1(4-2)|= \frac{1}{2}|-2-12-2|= 8$ square units.

Therefore, area of the rhombus will be (8 × 2) = 16 square units. (Answer)

Note: If the three vertices of a triangle ABC are given to be (x1,y1), (x2,y2), and (x3,y3), then area of the triangle will br given by

$\frac{1}{2} |x1(y2-y3) +x2(y3-y1)+ x3(y1-y2))|$ .

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3 years ago