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3 years ago

HELP PLEASE

Mathematics

1 answer:

Nikolay [14]3 years ago

4 0

Answer:

The 1st the 3rd and 4th are the answers

Step-by-step explanation:

Edgen

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There are 90 new houses being built in a neighborhood. Last month, 13 of them were sold. This month, 15 of the remaining houses

Tcecarenko [31]

62 because 90 minus 15, minus 13, is equal to 62

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3 years ago

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Select all the correct graphs. Choose the graphs that indicate equations with no solution.

Natali [406]

Answer:

The first and last graph.

General Formulas and Concepts:

Algebra I

Solving systems of equations graphically

Step-by-step explanation:

In order for a systems of equations to have a solution set, the 2 graphs must intersect at at least 1 point. Here, we see that graphs 1 and 5 do not intersect each other at all.

Therefore, the rest of the graphs have solutions and #1 and #5 do no have any solutions.

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3 years ago

Record the sum in simplest form.1/2+1/4

Irina18 [472]

$\frac{1}{2}$ + $\frac{1}{4}$ = $\frac{3}{4}$

Explanation:

1/2 + 1/4 = ?

( 1/2 x 2/2 ) + ( 1/4 x 1/2 ) =

2/4 + 1/4 =

2 + 1 / 4 = 3/4

so, 1/2 + 1/4 = 3/4

4 0

3 years ago

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-6(p+8)=36 Algebra two step equation

Tatiana [17]

Answer:

The value of p = -14

Step-by-step explanation:

Given the equation

$-6\left(p+8\right)=36$

Divide both sides by -6

$\frac{-6\left(p+8\right)}{-6}=\frac{36}{-6}$

simplify

$p+8=-6$

Subtract 8 from both sides

$p+8-8=-6-8$

simplify

$p=-14$

Therefore,

The value of p = -14

8 0

2 years ago

Find the kissing lengths of the sides of the triangle.

alina1380 [7]

Answer: The last option.

Step-by-step explanation:

The triangle shown in the figure attached is a right triangle.

1. You can calculate the lenght a as following:

$sin\alpha=\frac{opposite}{hypotenuse}$

$opposite=a\\hypotenuse=6in\\\alpha=30\°$

Substitute values and solve for a. Then, you obtain:

$sin(30\°)=\frac{a}{6in}\\a=6in*sin(30\°)\\a=3in$

2. You can calculate the lenght b as following:

$cos\alpha=\frac{adjacent}{hypotenuse}$

$adjacent=b\\hypotenuse=6in\\\alpha=30\°$

Substitute values and solve for b. Then, you obtain:

$cos(30\°)=\frac{b}{6in}\\b=6in*cos(30\°)$

$b=3\sqrt{3}in$

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3 years ago