3 years ago

Help please, I can’t figure this out

Mathematics

1 answer:

Ainat [17]3 years ago

6 0

I believe a is the answer

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Lee has a jar of 100 pennies. She adds groups of 10 pennies to the jar. She adds 5 groups. What numbers does she say?

Alenkinab [10]

150 pennies in the jar .

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3 years ago

Rewrite each equation in vertex form by completing the square. Then identify the vertex.

Cerrena [4.2K]

ANSWER

Vertex form:

$y = ( {x + 4)}^{2} - 11$

Vertex

V(-4,-11)

EXPLANATION

The given expression is

$y = {x}^{2} + 8x + 5$

We complete the square to get the vertex form.

Add and subtract half the square of the coefficient of x.

$y = {x}^{2} + 8x + 16 + 5 - 16$

$y = ( {x + 4)}^{2} - 11$

The vertex is

V(-4,-11)

7 0

3 years ago

Read 2 more answers

The perimeter of a triangle is 42 inches one side measures 18 inches the shortest side measures x inches the longest side measur

Oksana_A [137]

By writing an equation you can easily solve this:

18+ X + 4X - 1 = 42
•we need the answer to 4X-1

1. put the parts that include the X parameter in one side and the integer numbers in one side :
X + 4X = 25
5X= 25
X= 5

2. 4X-1 —> 4x5-1 = 19

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3 years ago

Each 1/2 inch on a scale model represents an actual length of 1/6 of a yard. What length on the model represents 1 yard?

ivanzaharov [21]

Answer:

The file contains the solution to the question