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3 years ago

HELPPPPP PLZZZZZZZ PLLLZZZ BRANLIESTTTT look THAT THE PICTURE

Mathematics

2 answers:

Pepsi [2]3 years ago

5 0

Answer:

y is equal to or greater to one

y > 1 (BUT THE > HAS A DASH UNDER IT)

Step-by-step explanation:

it's a colored in circle and i was taught that that's when the point is included (that's why a dashed should be under the >)

elena55 [62]3 years ago

5 0

Answer:

$y \geqslant 1$

Step-by-step explanation:

the coloured dot means it is equal to or more than 1

as the arrow moves toward bigger numbers than 1

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Help me solve these step by step please !!!

Anettt [7]

Answer:

#2) is 25

Step-by-step explanation:

the best way to solve any of theses is in the order of pemdas:

●parentheses

●exponents

●multiplication & division

●addition & subtraction

for example lets do #2

9+ (2^2)(4)

the first parenthesis has exponents so you'd do it first. 2^2 (two two times) is 4

9+(4)(4)

when two parentheses are next to Each other you multiply. 4x4 is 16

9+16

then finally you add

use these steps for the rest. just comment if you have any questions

7 0

3 years ago

Read 2 more answers

Find the surface area of a right cone with diameter 30 in. and slant height 8 in.Your answerEXTRA CREDIT: Find the surface area

Anon25 [30]

Answer:

Surface area = 1084 in²

Step-by-step explanation:

To find the surface area of a right cone, we can use the following formula:

$\boxed{{Area = \pi r^2 + \pi rl}}$ ,

where:

• r = radius

• l = slant height.

In the question, we are told that the diameter of the cone is 30 in. Therefore its radius is (30 ÷ 2 = ) 15 in. We are also told that its height is 8 in.

Using this information and the formula above, we can calculate the surface area of the cone:

Surface area = $\pi \times (15)^2 + \pi \times 15 \times 8$

= $345 \pi$

$\approx$ 1084 in²

6 0

1 year ago

If the confidence level is decreased and the standard deviation and sample size stay the same, then the margin of error will be

Eduardwww [97]

Answer:

true

Step-by-step explanation:

If the standard deviation is increased and the sample size and confidence level stay the same, then the margin of error will also be increased

3 0

3 years ago

What is the volume of the composite figure? Explain your work. A complete answer should include how you broke up the figure, whi

Sphinxa [80]

Answer:

$15,000\:\mathrm{mm^3}$

Step-by-step explanation:

The composite figure consists of a square prism and a trapezoidal prism. By adding the volume of each, we obtain the volume of the composite figure.

The volume of the square prism is given by $V=s^2\cdot h$ , where $s$ is the base length and $h$ is the height. Substituting given values, we have: $V=14^2\cdot 30=196\cdot 30=5,880\:\mathrm{mm^3}$

The volume of a trapezoidal prism is given by $V=\frac{b_1+b_2}{2}\cdot l\cdot h$ , where $b_1$ and $b_2$ are bases of the trapezoid, $l$ is the length of the height of the trapezoid and $h$ is the height. This may look very confusing, but to break it down, we're finding the area of the trapezoid (base) and multiplying it by the height. The area of a trapezoid is given by the average of the bases ( $\frac{b_1+b_2}{2}$ ) multiplied by the trapezoid's height ( $l$ ).

Substituting given values, we get:

$V=\frac{14+24}{2}\cdot (30-14)\cdot 30,\\V=19\cdot 16\cdot 30=9,120\:\mathrm{mm^3}}$

Therefore, the total volume of the composite figure is $5,880+9,120=\boxed{15,000\:\mathrm{mm^3}}$ (ah, perfect)

Alternatively, we can break the figure into a larger square prism and a triangular prism to verify the same answer:

$V=30^2\cdot 14+\frac{1}{2}\cdot10\cdot 16\cdot 30=\boxed{15,000\:\mathrm{mm^3}}\checkmark$

8 0

2 years ago

4+5(-2x+3)+3x=61 if possible could you also show me how to get to the answer?

Ket [755]

Answer:

I need this answer too !!!

4 0

3 years ago