The length of the base of an isosceles triangle is x. The length of a leg is 3x - 6. The perimeter of the triangle is 58. Find x.

Answers

Answer 1

Answer:

x = 10

Step-by-step explanation:

Perimeter of a triangle = the sum of the three sided of the triangle.

In an isosceles triangle, there are two equal sides and  a base.

Perimeter = ( 3x - 6) + (3x - 6) + x

            58 = 7x - 12

            58 + 12 = 7x

                   70  = 7x

                    [tex]\frac{70}{7} = \frac{7x}{7}[/tex]

                    10 = x


Related Questions

50 points!!! help fast! 50 points!!!

Answers

Answer:

∠PQC = 26.25°

Step-by-step explanation:

∠B and ∠C = 75°∠PCD = 1/2∠C = 37.5°∠DPC = 180 - 90 - 37.5∠DPC = 90 - 37.5∠DPC = 52.5°∠QPC = 180° - 52.5° = 127.5°

Finding ∠PQC

1/2 × (180° - 127.5°)1/2 × 52.5°∠PQC = 26.25°

Answer:

This calculator is helpful for deciding how many tablets/capsules to dispense and/or how many days the dispensed quantity will last. It will calculate quantity of tablets/capsules needed

Step-by-step explanation:

Solve for f.
1≤2–f

89 points pls help

Answers

Answer:

f ≤ 1

Step-by-step explanation:

1) Subtract 2 from both sides.

1 - 2 ≤ - f

2) Simplify 1 - 2 to - 1.

- 1 ≤ - f

3) Multiply both sides by - 1.

1 ≥ f

4) Switch Sides.

f ≤ 1

[tex]\\ \sf\longmapsto 1\leqslant 2-f[/tex]

Take 2 to right

[tex]\\ \sf\longmapsto 1-2\leqslant -f[/tex]

[tex]\\ \sf\longmapsto -1\leqslant -f[/tex]

Multiply -1 on both sides

[tex]\\ \sf\longmapsto f\leqslant 1[/tex]

How do I solve this :
3x + y= 1 and x - 2y = 5​

Answers

Answer:

(1,-2)

Step-by-step explanation:

x - 2y = 5

3x + y= 1 (1)

x - 2y = 5

x = 5 + 2y (2)

Substitute (2) into (1)

3x + y = 1

3(5 + 2y) +y = 1

15 + 6y + y = 1

15 + 7y = 1

7y = 1 - 15

7y = -14

y = -2  (3)

Plug (3) into (1) to find x

3x + y = 1

3x + (-2) = 1

3x - 2 = 1

3x = 3

x = 1

(1,-2)

The proportion of the total area under a normal curve between two z-scores corresponds to the ______ of that range of scores.

Answers

Answer:

For any normal distribution, the mean and the median will have the same value. For any normal distribution, the proportion corresponding to scores greater than z = +1.00 is exactly equal to the proportion corresponding to scores less than z = -1.00.

Step-by-step explanation:

4 pounds of grapes cost 5$ 7 pounds of grapes cost $8.75. What is the cost per pound?

Answers

Answer:

$1.25 per pound

Write the equation of each line in slope intercept form.

Answers

Step-by-step explanation:

Formulas and Formats we'll be using:

Slope Formula: [tex]m=\frac{y2}{x2} -\frac{y1}{x1}[/tex]

Slope-Intercept form: [tex]y=mx+b[/tex]

m = slope

b = y-intercept

Substitute (-6, 10) and (-3, -2) into the slope formula:

[tex]m=\frac{-2}{-3} -\frac{10}{-6}[/tex]

Simplify:

[tex]m=\frac{-12 \div 3}{3 \div 3}=\frac{-4}{1}[/tex]

[tex]m=-4[/tex]

*Per every -4 y, x increases by 1.

Points Included:

(-6, 10)

(-5, 6)

(-4, 2)

(-3, -2)

(-2, -6)

(-1, -10)

(0, -14)

Y-intercept:

Y-intercept represents x when it's equal to 0.

Using our points, we can determine that the y-intercept is at the point:

(0, -14)

-14 is the y-intercept.

Create a Slope-intercept form equation:

Formula: [tex]y = mx + b[/tex]

Substitute the slope, and y-intercept into the equation:

[tex]y=-4x-14[/tex]

Your equation is: [tex]y=-4x-14[/tex]

at 6 am the temperature was -8ºC. In the afternoon, the temperature was +3ºC. What was the change of temperature during the day?

Answers

Answer:

I think -5

Step-by-step explanation:

-8-(3)= -5

if they are the same sings (+or-) you keep and add and different signs subtract, you keep the sign of the bigger number then you'll be exact.

Hope it helps

Find the unit rate.

12 laps in 30minutes

Answers

Answer:

0.4/1

Step-by-step explanation:

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 30

7. Convert the following. (5 marks) a) 10,000 cm² to m²?​

Answers

Answer:

100m^2

Step-by-step explanation:

100 cm in a meter so 10000/100=100

Answer:

10,000 cm^2 = 1m^2

Step-by-step explanation:

100 cm = 1 m

(100cm)*(100cm) = 1 m^2

10,000 cm^2 = 1m^2

4(x + 3) + 3x = 24

Step by step please

Answers

Answer: 12/7

Step-by-step explanation: steps in pic, hope this helps!

Mary bought 176 flowers for 4 vases. How many flowers are needed for 7 vases?

Answers

She planned to have 44 flowers per vase (176/4). 7 vases would mean 308 flowers.

4 x +2 y =1 6 // write the equation in slope-intercept form plsss
i'll give you brainliest if correct

Answers

Answer:

y= -2x+8

Step-by-step explanation:

the common required form is: y=s*x+i, where s - slope, i - interception.

According to the form and the condition y=-2x+8.

Use matrices to rotate the vector v=<-4 , 1> by 270°. Write the resulting vector in component form

Answers

Using rotation rules, it is found that the resulting vector is:

v = <1, 4>

When a vector in component form <x,y> is rotated by 270 degrees, the rule is:

<x, y> -> <y, -x>

That is, x and y are switched, and the signal of x changes.

In this problem, the vector is v <-4, 1>, hence:

<-4, 1> -> <1, -(-4)> -> <1,4>

Hence, <1,4> is the resulting vector.

A similar problem is given at https://brainly.com/question/12673036

help asap please needed

Answers

Answer:

it should be b

Step-by-step explanation:

if wrog please correct me also can u give me brainlist

Answer:

B

Step-by-step explanation:

63 should be your answer

Would appreciate Brainliest

In 10 minutes a heart can beat 700 times.At this rate in how many minutes will a heart beat 140 times? AT what rate can a heart beat

Answers

Answer:

2 minutes

Step-by-step explanation:

700/10 = 70

1 minute = 70 times

140/70 = 2 minutes

Answer:

2 minutes

Step-by-step explanation:

The heart beats 70 times per minute so 70+70=140.

Evaluate -(2-6)(23).
O A. -8
O B. 33
O c. - 3
O D. 8

Answers

i think it’s definitely-3

-3 c

Please help! If it’s true then it’s 10 points. If it’s false then it’s 15. Don’t add up the numbers. I really appreciate it :)

Answers

1) True

2) True

3) False

4) False

5) False

6) True

7) True

8) False

If their food and beverages cost $25.30 and there is an 8% meals tax, how much is the bill? Enter your answer to the nearest cent.

Answers

Answer:

32.24

Step-by-step explanation:

$2.02

($2.024 before rounded)

What are the x-intercepts of the graphed function?​

Answers

Answer:

(-2,0) and (2,0)

Step-by-step explanation:

The x-intercepts are where the parabola touches the x-axis (aka when y is 0).

what single transformation rule would be the same as a reflection across y=5 and then across the line y=-2?

I know the answer is T(0,-14) but I don’t understand how it’s -14?

Answers

Soils you are welcome I will call back and get it to work on 8384848 or so you need me and

the solution a+b>-9 is a >-15. What is the value of b
PLEASEEEEE HELP PLEASEEE

Answers

Answer:

b>6

Step-by-step explanation:

Question in the picture

Answers

Answer:

X = 73, Y = 138

Step-by-step explanation:

hurry please im dead meat if i cant do this picture below

Answers

Answer:

4 divided by 1/8

hope it helps

Step-by-step explanation:

What is the solution to the equation 4 = 6? y = 1 y = 4 y = 500 y = 2000.

Answers

Answer = y=4. equation

Somebody help ???????

Answers

Answer:

B

Step-by-step explanation:

Answer:

c.

Step-by-step explanation:

but plsdoble check it

very time Luisa bakes a batch of brownies, she uses 12 cup of chocolate. If she has 32 cup(s) of chocolate remaining, how many batches of brownies can Luisa make? Input your answer as a whole number

Answers

Answer:

4

Step-by-step explanation:

Answer:she can make 4 batches of brownies

Step-by-step explanation:

since she already made a batch of brownie with 1/2 cup and she has 3/2 cups left, that means she can make 3 more

3+1=4

hope this helps

Step-by-step explanation:

Also try searching you question in brainly some of these questions are asked and answered

In a scale model of a boat 1 inch represents 8 feet

Answers

Answer:That is amazing.

Step-by-step explanation:

tha t is just wonderful news, now what was the question?

What is y=6-2x-4x^2+5x^3 in standard form?

Answers

Y=6-2x-4x^2+5x^3
In standard form is……

Y=5x^3-4x^2-2x+6

how to evaluate (-1/2)×(-4)​

Answers

The answer is 2

first, we know that the answer will end up to be positive because the two negatives multiply together and cancel each other out to be a positive. Next, we know that 4 divided by 2 is 2, so the answer is 2.

Answer:

Answer:

X=10

Step-by-step explanation:

-1 + x2 = 4

Add 1 to each side

-1 +1+x/2 = 4+1

X/2 = 5

Multiply each side by 2

X/2 *2 = 5*2

x= 10

Write the equation of the line from the graph.​

Answers

Answer: x=-5

Step-by-step explanation:

Graph has no y intercept, thus has to be equal to x, and since its -5... x=-5 is your answer

Answer: X= -5

Step By-Step explantation:

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