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icang [17]
3 years ago
13

8≤r-14z+4≥2zhelp me plz

Mathematics
1 answer:
Nikitich [7]3 years ago
6 0
The answer for the first one is
22 \leqslant r
You have to add both sides by 14 and you will get my answer.

I'm sorry I don't know the answer for the second one.

Hope this helps though!
You might be interested in
Find the value of X.
Oksanka [162]

Answer:

x =25

Step-by-step explanation:

This is an isosceles triangle because RS = ST

that means <r = <STR

4x-70 = STR

<STR + <STU = 180   straight line

subtract < STU from each side

<STR = 180 -<STU

we know angle stu = 6x

<STR = 180 -6x

we can substitute this into 4x-70 = STR

4x-70 = 180 -6x

add 6x to each side

4x+6x -70 = 180 -6x+6x

10x -70 = 180

add 70 to each side

10x-70+70 = 180+70

10x=250

divide by 10

10x/10 = 250/10

x =25

5 0
3 years ago
95 = -5(4a+5)+10<br> multi-step equations. Solve for a
Wewaii [24]

Answer: a = 5.5

Step-by-step explanation:

95 = -20a - 25 + 10

95 = -20a - 15

-20a = 110

a = 5.5

6 0
3 years ago
Don’t know the answer.
kvasek [131]
They are both isosceles triangles
6 0
3 years ago
A company makes traffic signs one of those signs can be modeled by an equilateral triangle with the perimeter of 144 inches the
barxatty [35]

Answer:

The height of the larger traffic signs is 51.96 inches

Step-by-step explanation:

Given that initially, A company makes traffic signs of an equilateral triangle with the perimeter of 144 inches

Now, A company makes similar traffic signs of perimeter 1.25 of original

New perimeter will be 1.25x144=180 inches

Let triangle ABC be a larger triangle with 180inches of the perimeter.

It is given that the triangle is an equilateral triangle,

Therefore, Side AB=BC=AC

The perimeter of a triangle ABC is

AB+BC+AC=180

3AB=180

AB=60 inches

Figure show that triangle ABC and AD is the height of the triangle.

Since, the triangle ABC is an equilateral triangle,

AD is the perpendicular bisector of BC

so that,

BD=DC and Angle ADB=90

In right triangle ADB,

Angle D =90 and Angle B =60

Side BD=60/2=30 inches and AB=60 inches

Using Pythagoras theorem,

AD^{2} +BD^{2} =AC^{2}

(AD)^{2} +(30)^{2} =60^{2}

(AD)^{2} =60^{2}-(30)^{2}

AD=51.96 inches

Thus, The height of the larger traffic signs is 51.96 inches

4 0
3 years ago
What is the sum of {-3x}^{2}−3x <br> 2<br> -7x+−7x+88 and {-5x}^{2}−5x <br> 2<br> +6x-4+6x−4?
dezoksy [38]
7772728181181
I think
4 0
3 years ago
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