2 years ago

Which ordered pairs are solutions to the inequality 2x - y > -4? Check all that apply.

Mathematics

1 answer:

JulsSmile [24]2 years ago

4 0

Answer:

(1,-6)

(-2,-5)

(8,2)

(4,0)

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In the figure, PQ is parallel to RS. The length of RP is 5cm; the length of PT is 30cm; the length of QT is 60cm. What is the le

rjkz [21]

The triangles PTQ and RTS are similar; so the ratios of corresponding sides are equal.

Let us denote the unknown length SQ as x.

We could make the following similarity relation;

$\begin{gathered} \frac{30}{30+5}=\frac{60}{60+x} \\ \end{gathered}$

Cross multiply to obtain;

$\begin{gathered} 30(60+x)=60(35) \\ 1800+30x=2100 \\ \text{collect like terms} \\ 30x=2100-1800 \\ 30x=300 \\ \text{divide both sides by 30} \\ \frac{30x}{30}=\frac{300}{30} \end{gathered}$

Therefore;

$x=10\operatorname{cm}$

Therefore, the answer is option A

3 0

10 months ago

Brian says that the expression 8n + 2 is equal to 83 when n=1. Explain why Brian’s answer is incorrect?

GalinKa [24]

Answer:

8n+2 first let’s plug in n which is 1

8(1)+2=10

The answer is 10 but Brian said the expression is equal to 83. He is incorrect because 8 times 1 is 8 and then plus 2 is 10.

I hope it helps.

5 0

2 years ago

An ice-skating competition lasted three days. Day one had an attendance of 16,390 people. Day two had an attendance of 16,550 pe

lana [24]

Answer:

$Day\ 3 = 16237$

$Day\ 1 = 16390$

$Day\ 2 = 16550$

Step-by-step explanation:

Given

$Day\ 1 = 16390$

$Day\ 2 = 16550$

$Day\ 3 = 16237$

Required

Order from least to greatest

Comparing 16390, 16550 and 16237.

The order of arrangement from least to greatest is:

16327, 16390 and 16550.

So, we have:

$Day\ 3 = 16237$

$Day\ 1 = 16390$

$Day\ 2 = 16550$

6 0

3 years ago

Vinvika [58]

Answer:

B. 210°

hope it helps

have a nice day

8 0

3 years ago

Using the following diagram, tick the correct angles which are congruent to the angles given in the first column.

bulgar [2K]

Answer:

Step-by-step explanation:

Angle 1 = 1, 3, 5, 7

Angle 3 = 1, 3, 5, 7

Angle 4 = 2, 4, 6, 8

Pretty much just look at the congruent symbols and you can figure it out.

7 0

2 years ago