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3 years ago

PLEASE HELP I NEED HELP I don’t get this

Mathematics

1 answer:

sergiy2304 [10]3 years ago

7 0

Answer: The first question is a corrosponding angle, which means the measure is the same. So, angle KRQ is 146°.

And QRN is 128°.

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Solve for the value of v: V+27=117

Fudgin [204]

V+27=117
Subtract 27 to 117:
v=90

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3 years ago

Read 2 more answers

How to determine if an outcome is unusual

lbvjy [14]

The only way to determine whether or not an outcome is unusual or not is to compare it with previous or future outcomes.

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4 years ago

. Use the quadratic formula to solve each quadratic real equation. Round

Liono4ka [1.6K]

Answer:

A. No real solution

B. 5 and -1.5

C. 5.5

Step-by-step explanation:

The quadratic formula is:

$\begin{array}{*{20}c} {\frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}} \end{array}$ , with a being the x² term, b being the x term, and c being the constant.

Let's solve for a.

$\begin{array}{*{20}c} {\frac{{ 5 \pm \sqrt {5^2 - 4\cdot1\cdot11} }}{{2\cdot1}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 5 \pm \sqrt {25 - 44} }}{{2}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 5 \pm \sqrt {-19} }}{{2}}} \end{array}$

We can't take the square root of a negative number, so A has no real solution.

Let's do B now.

$\begin{array}{*{20}c} {\frac{{ 7 \pm \sqrt {7^2 - 4\cdot-2\cdot15} }}{{2\cdot-2}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 7 \pm \sqrt {49 + 120} }}{{-4}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 7 \pm \sqrt {169} }}{{-4}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 7 \pm 13 }}{{-4}}} \end{array}$

$\frac{7+13}{4} = 5\\\frac{7-13}{4}=-1.5$

So B has two solutions of 5 and -1.5.

Now to C!

$\begin{array}{*{20}c} {\frac{{ -(-44) \pm \sqrt {-44^2 - 4\cdot4\cdot121} }}{{2\cdot4}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 44 \pm \sqrt {1936 - 1936} }}{{8}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 44 \pm 0}}{{8}}} \end{array}$

$\frac{44}{8} = 5.5$

So c has one solution: 5.5

Hope this helped (and I'm sorry I'm late!)

4 0

3 years ago

Find the sum or difference. Round your answer appropriately. 11.7 qt + 2 qt

qwelly [4]

Add 11.7 and 2. The answer is 13.7 (quarts).

4 0

3 years ago

Naomi's fish is 40 millimeters long. Her guinea pig is 25 centimeters long.

user100 [1]

Answer:

21cm

Step-by-step explanation:

Solution,

Length of fish=40mm=40/10=4cm

Length of pig=25cm

Now,

Difference of their length=25cm-4cm=21cm

Hence,the pig is 21cm long than the fish

5 0

3 years ago