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Stells [14]
3 years ago
5

1 point

Mathematics
2 answers:
KatRina [158]3 years ago
8 0

Answer: C

Step-by-step explanation:

(5x^2 - 2x + 14) - (x^2 + 4x - 10)

4x^2 - 6x + 24

algol [13]3 years ago
8 0
Answer: C


Step-by-step explanation:

(5x^2 - 2x + 14) - (x^2 + 4x - 10) 4x^2 - 6x + 24
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Can someone help me with this thanks ​
Ugo [173]

The length of the brace required is 4.3m

What is sine rule?

In a ΔABC a, b and c are the sides and A, B and C are angles then,

\frac{a}{SinA}=\frac{b}{sinB}=\frac{c}{sinC}

We can find the length, l as shown below:

Let AB=3m, BC=2m and AC=l

Let ∠A=25°

So, in ΔABC

\frac{BC}{sinA}=\frac{AB}{sinC}=\frac{AC}{SinB}

\frac{BC}{sinA}=\frac{AB}{sinC}

\frac{2}{sin25}=\frac{3}{sinC}

\angle{C}=sin^{-1}(\frac{3\times sin25}{2} )

∠C=39.34°

∠A+∠B+∠C=180°

∠B=180°-25°-39.34°

∠B=115.66°

\frac{BC}{sinA}=\frac{AC}{SinB}

\frac{2}{sin25}=\frac{l}{sin(115.66)}

l=\frac{2\times sin(115.66)}{sin25}

l=4.2659

Rounding to nearest tenth of meter.

l=4.3m

Hence, the length of the brace required is 4.3m

Learn more about Sine Rule here:

brainly.com/question/25852087

#SPJ1

8 0
2 years ago
Find the y intercept​
erica [24]

Step-by-step explanation:

Slope of line ST = Slope of line PQ = -3.

y = -3x + c

When x = 3, y = -1

=> (-1) = -3(3) + c, c = 8

Therefore the equation of line ST is y = -3x + 8 and the y-intercept is 8.

7 0
3 years ago
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Super Salad Dressing is made with 8 mL of oil for every 3 mL of vinegar. Which mixtures will taste the same as Super Salad Dress
sesenic [268]

Answer: The Answers Are: A, C, E

Step-by-step explanation: Find the Equivalent Ratios! :)

8 0
3 years ago
Need help fast plss will give brainliest to who is correct plss help
Gala2k [10]

Answer:

A) (-3,-2)

Step-by-step explanation:

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3 years ago
Which expression best describes the transformation shown in the diagram below?
Dimas [21]

Answer:

A

Step-by-step explanation:

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