5x + 2y = 15
y = -3x + 4

Answer and Step-by-step explanation:

Side AD is congruent to side AC by the angle bisector theorem.

Angle A is congruent to angle C.

Side AB is congruent to side BC by the angle bisector theorem.

Triangle BAD is congruent to triangle BCD by SAS congruence theorem.

#teamtrees #WAP (Water And Plant)

Answer:

Step-by-step explanation:

X is mass which I s decrease. If you have 740 grams of element x and you add the function.per the rate day you will have a hundredth percent.

Answer:

f(t)=740(0.9970)^365t

0.30% decrease per day

Answer:

A

Step-by-step explanation:

Use slope formula:

m = (y2 - y1) / (x2 - x1)

m = (-2 - 1) / (-3 - 1)

m = -3/-4

Negative + Negative = Positive

m = 3/4

Answer:

[tex]753491[/tex]

Step-by-step explanation:

1) Subtract 78 + 13 to 91.

[tex] {91}^{3} - 8 \times 10[/tex]

2) Simplify 91³ to 753571.

[tex]753571 - 8 \times 10[/tex]

3) Simplify 8 × 10 to 80.

[tex]753571 - 80[/tex]

4) Simplify.

[tex]753491[/tex]

Therefor, the answer is 753491.

Answer:

Step-by-step explanation:

Even I need help with that

Answer:

E

Step-by-step explanation:

I have never heard of it in my entire life.

Answer and Step-by-step explanation:

A is the correct answer.

The shape called hexahectaenneacontakaiheptagon has 697 sides.

#teamtrees #PAW (Plant And Water)

Answer:

Multiply by 1.16

Step-by-step explanation:

Answer:

Multiply it by 0.16

Answer:

87.5

Edited: Yea should be 56, misread it LOL.

Appoligise to that silly mistake

Step-by-step explanation:

Answer: It’s C

Step-by-step explanation:

Answer:

sorry i need this for a challenge :)

Step-by-step explanation:

Answer:

The area of the triangle is 84.511 square units.

Step-by-step explanation:

First step, we need to calculate lengths of line segments AB, BC and AC by Pythagorean Theorem:

AB:

[tex]AB = \sqrt{(12-0)^{2}+(3-8)^{2}}[/tex]

[tex]AB = 13[/tex]

BC:

[tex]BC = \sqrt{(7-12)^{2}+(-9-3)^{2}}[/tex]

[tex]BC = 13[/tex]

AC:

[tex]AC = \sqrt{(7-0)^{2}+(-9-8)^{2}}[/tex]

[tex]AC \approx 18.385[/tex]

Now, we can determine the area of the triangle ([tex]A[/tex]) by Heron's formula:

[tex]A = \sqrt{s\cdot (s-AB)\cdot (s-BC)\cdot (s-AC)}[/tex] (1)

[tex]s = \frac{AB+BC+AC}{2}[/tex] (2)

Where [tex]s[/tex] is the semiperimeter of the triangle.

If we know that [tex]AB = 13[/tex], [tex]BC = 13[/tex] and [tex]AC \approx 18.385[/tex], then the area of the triangle is:

[tex]s = 22.193[/tex]

[tex]A = 84.511[/tex]

The area of the triangle is 84.511 square units.

Answer:

99

= 11 × 9

= 11 × 3 × 3 ----- 99 as the product of its prime factors.

Answer: 99

= 11 × 9

= 11 × 3 × 3 ----- 99 as the product of its prime factors.

Tangents AB and AD are equal to each other. So, the value of the variable [tex]x[/tex] is 5.

Important information:

If two tangents are drawn on a circle from an external point, then the lengths of the tangents are equal.

In the given figure,

[tex]AB=AD[/tex]

[tex]2x+7=5x-8[/tex]

[tex]2x-5x=-7-8[/tex]

[tex]-3x=-15[/tex]

Divide both sides by -3.

[tex]x=5[/tex]

Therefore, the value of [tex]x[/tex] is 5.

Find out more about 'Tangent' here:

https://brainly.com/question/21864072

Answer:

120 units^2

Step-by-step explanation:

(12)(5)(0.5)(2) + (12)(2) + (13)(2) + (5)(2) = 120 units^2

Answer:

80 hours

Step-by-step explanation:

let d represent doug, let l represent laura

first, set up a system of equations representing the problem:

since doug spent 10 less than twice the hours laura did, and we know that the total amount of hours they spent together is 230:

l=2d+10

d+l=230

then solve:

*first i rearranged the equations so i can solve this system of equations using elimination method*

l-2d=10

l+d=230

*subtract*

3d=240

d=80

so, doug spent 80 hours in the lab

Answer:

(a) 3.025

Step-by-step explanation:

The computation is shown below:

In the case when Abishola acheives all As in the senior year, so the final GPA  Is  

The net GPA is 3

So,

(2.7 × 90 + 30 × x) ÷ 120 = 3

30x = (360 - 2.7 × 90)

x = (360  - 2.7 × 90) ÷ (30)

= 3.9

As she can score till 4 so 3.9 could be possible  

In the case when she score 4 on her final year so her GPA is  

= (2.7 × 90 + 30 × 4) ÷ 120

= 3.025

Answer:

o . ooo 2 and dr 45009.7 ok byy

Answer:Just multiply Step-by-step explanation:do 12x10x20=2,400

Answer:

The circumference is 81.64cm

Step-by-step explanation:

Circumference of a circle=2×3.14×radius

2×3.14×13=81.64

I hope this helps you in any way :)

Answer:

60

step-by-step explanation:

Answer: 60

Step-by-step explanation: Basically just multiply the whole number by 2 :)

Whenever you see something times 0.5, just know that its going to be that number times 2 (like another half of that number if you understand)

Why? Because 0.5 is basically like a one half (1/2) and you flip the stuff. since 0.5 is a half, here's a tip. Whenever you're dividing with decimals, use the formula KCF (keep, change, flip) (what my teacher taught me before)          

Here's a drawing to better explain:

Answer:

x = 4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Algebra I

Step-by-step explanation:

Step 1: Define

-(8x + 3) = -23 - 3x

Step 2: Solve for x

Answer:

Because each side counts up to 60 mybe

Answer:

The answer is B

Step-by-step explanation:

Answer:

29/7     or     4  1/7

Step-by-step explanation:

Let x be the unknown number.

7 times a number is 7x,

and then 14 less than that would be 15.

7x-14=15

Now simplify by adding 14 and dividing by 7

7x=29

x=29/7    or 4 1/7

Answer:

x=8 and y =40

Step-by-step explanation:

this is the answer

Answer:

+61

Step-by-step explanation:

Answer:

61

Step-by-step explanation:

Please mark as brainliest!

Answer:

i keep getting 52 - srry

Step-by-step explanation:

Answer:

3 is the quotient and 5 is the remainder

Step-by-step explanation:

Answer:

3 with a remainder of 5

Step-by-step explanation:

26-0=26-21=5