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3 years ago

What is the minimum or maximum value if the function X^2 + 30x + 21

Mathematics

1 answer:

Margaret [11]3 years ago

3 0

Answer:

x2-30x-21=0

Step-by-step explanation:

x =(30-√984)/2=15-√ 246 = -0.684

x =(30+√984)/2=15+√ 246 = 30.684

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Sarah has 12 bags of apples. Mikaela has 17 bags of apples. Each bag has the same amount of apples inside. Wrie an expression fo

hodyreva [135]

The expression for the total amount of apples is 29x

Solution:

Given that,

Sarah has 12 bags of apples

Mikaela has 17 bags of apples

Each bag has the same amount of apples inside

Let "x" be the number of apples in each bag

Then,

Sarah has 12x apples

Mikaela has 17x apples

Wrie an expression for the total amount of apples

Total amount of apples = 12x + 17x

Then simplify it using the distributive property to create an equivalent expression

By distributive property,

a(b + c) = ab + bc

Therefore,

$12x+17x = x(12+17)\\\\12x+17x = 29x$

Thus expression for the total amount of apples is 29x

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3 years ago

An area of a rectangle is 52 square meters. The width is 4 meters what would the length be?

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Answer:

Step-by-step explanation:

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Ivenika [448]

Answer:

Carlos rode further on Sunday by $1\frac{51}{56} miles$ miles.

Step-by-step explanation:

Carlos covered distance on Saturday $=\frac{139}{8}$

He covered distance on Sunday = $\frac{135}{7}$

Equivalent fractions:

$\frac{139}{8} \times \frac{7}{7}=\frac{973}{56}\\ \frac{135}{7} \times \frac{8}{8}=\frac{1080}{56}$

So, $\frac{1080}{56}>\frac{973}{56}\\ \frac{135}{7}>\frac{139}{8}$

So, He covered more distance on Sunday

Difference between distances = $\frac{1080}{56}-\frac{973}{56}=\frac{107}{56}=1\frac{51}{56}$

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Answer:

3000miles

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