3 years ago

What number is shown on the graph ?

Mathematics

1 answer:

Natalka [10]3 years ago

4 0

El numero daaaaaaaaa

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Is this ordered pair a solution to the inequality?<br> (1, 3)<br> 5x+y<-3<br> A.)No<br> B.)Yes

max2010maxim [7]

(1,3) means that x = 1 and y = 3. Let's make substitutions to see what happens with the inequality

5*x + y < -3
5*1 + y < -3 ... replace x with 1
5*1 + 3 < -3 ... replace y with 3
5 + 3 < -3
8 < -3

This is false. The number 8 is NOT smaller than -3.

So (1,3) is NOT a solution

Answer: Choice A) No

3 0

3 years ago

Evaluate x+6 when x=7

Trava [24]

Answer:

Step-by-step explanation:

x + 6 = ?

[Replace x with 7]

7 + 6 = 13

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2 years ago

Help Find the lateral area of this pyramid whose base is an equilateral triangle. Its slant height is 14 ft and the length of ea

kenny6666 [7]

Answer:

168 ft²

Step-by-step explanation:

The equation for the lateral area of a square pyramid is LA = (Pl/2)

Plug in the values LA = (24(14)) / 2

LA = 336/2

LA = 168 ft²

8 0

3 years ago

Find the area of the triangle with the given measurements. Round the solution to the nearest hundredth if necessary. B = 67°, a

kvasek [131]

Among many other formulas, the area of a triangle is

$S = \frac 1 2 a c \sin B$

where B is the angle between sides a and c.

$S=\frac 1 2(10)(20) \sin 67^\circ \approx 92.05 \textrm{ sq cm}$

Answer: 92.05 sq cm, first choice

Bonus. Here's a formula for the area S of a triangle your teacher doesn't know:

$16S^2 = 4a^2b^2 -(c^2-a^2-b^2)^2=(a^2+b^2+c^2)^2-2(a^4+b^4+c^4)$

7 0

2 years ago

15 more than twice the hours Carla work last week is the same as three times the hours she worked this week decreased by 15. She

balandron [24]

Let the number of hours she works be x

2x+15 15 more than twice the

3x-15 15 less than 3 times the hours she worked

2x+15=3x-15

3x-2x= 30

x= 30

the number of hours she worked is 30

3 0

2 years ago