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KiRa [710]
3 years ago
15

Math easy points for whoever wants to help :)

Mathematics
2 answers:
Leni [432]3 years ago
5 0

Answer:

A. The product of 5 and the square of 3x-4

Step-by-step explanation:

professor190 [17]3 years ago
4 0

Answer:

A. the product of 5 and square of 3x - 4

Step-by-step explanation:

3x-4 is the expression in parentheses. It is squared if the exponent is outside of it. As a result, the total problem is a product of 5 and the square of 3x-4. I hope I helped! ^-^

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Sy= 2x² - 6x+8<br> y=-2|x-1| +9<br> Solve plz
vampirchik [111]

Answer;

S = 2 ( ( − y + 11 2 , y − 7 2 ) 2 + 4 − 3 ( − y + 11 2 , y − 7 2 ) ) y   x = − y 2 + 11 2 x = y 2 − 7 2

Step-by-step explanation:

divide each term by y then simplify

4 0
3 years ago
Use a half-angle identity to find the exact value
Tatiana [17]

Given:

\cos 15^{\circ}

To find:

The exact value of cos 15°.

Solution:

$\cos 15^{\circ}=\cos\frac{ 30^{\circ}}{2}

Using half-angle identity:

$\cos \left(\frac{x}{2}\right)=\sqrt{\frac{1+\cos (x)}{2}}

$\cos \frac{30^{\circ}}{2}=\sqrt{\frac{1+\cos \left(30^{\circ}\right)}{2}}

Using the trigonometric identity: \cos \left(30^{\circ}\right)=\frac{\sqrt{3}}{2}

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

Let us first solve the fraction in the numerator.

            $=\sqrt{\frac{\frac{2+\sqrt{3}}{2}}{2}}

Using fraction rule: \frac{\frac{a}{b} }{c}=\frac{a}{b \cdot c}

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

Apply radical rule: \sqrt[n]{\frac{a}{b}}=\frac{\sqrt[n]{a}}{\sqrt[n]{b}}

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

Using \sqrt{4} =2:

           $=\frac{\sqrt{2+\sqrt{3}}}{2}

$\cos 15^\circ=\frac{\sqrt{2+\sqrt{3}}}{2}

5 0
4 years ago
A restaurant charges a mandatory 15% tip for parties containing more than 6 people. A party of 10 people was charged $52.50 as a
bogdanovich [222]

44.62 I’m not sure if I’m right

6 0
3 years ago
¿Cuántas onzas equivalen a 9 libras? (1 libra = 16 onzas)
rosijanka [135]

Answer:

144 onzas

Step-by-step explanation:

1) 1 libra= 16 onzas

2) 16x 9= 144

;) Espero que eso te ayude

4 0
4 years ago
A recipe calls for 3/4 of a cup of flour to make 5/8 of a pound of bread
schepotkina [342]

Answer:

\huge\boxed{\sf 1 \ pound \ of \ dough = 1\frac{1}{5}  \ cup \ of \ flour}

Step-by-step explanation:

\displaystyle \underline{Given \ that:}\\\\\frac{5}{8} \ pound \ of \ dough = \frac{3}{4} \ cup\ of \ flour\\\\Multiply \ 8 \ to \ both \ sides\\\\5 \ pounds \ of \ dough = \frac{3}{4} \times 8 \ cup \ of \ flour\\\\5 \ pounds \ of \ dough = 3 \times 2 \ cup \ of \ flour\\\\5 \ pounds \ of \ dough = 6 \ cups \ of \ flour\\\\Divide \ both \ sides \ by \ 5\\\\1 \ pound \ of \ dough = \frac{6}{5}  \ cup \ of \ flour\\\\\boxed{1 \ pound \ of \ dough = 1\frac{1}{5}  \ cup \ of \ flour}\\\\

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
8 0
3 years ago
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