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professor190 [17]
3 years ago
8

Question 7 of 8 Which expressions describe the area of the shaded region? Select all that apply. A rectangle is divided into 12

columns and 6 rows, making 72 smaller rectangles. An area that includes 9 smaller rectangles and is the intersection of 3 of the 12 columns and 3 of the 6 rows is shaded. A. 3 12 × 3 6 B. 3 10 × 1 2 C. 1 4 × 1 2 D. 1 4 × 1 3 E. 4 12 × 3 6
Mathematics
1 answer:
SSSSS [86.1K]3 years ago
4 0

Answer:

D. 1 4 × 1 3 E. 4 12 × 3 6

Step-by-step explanation:

D. 1 4 × 1 3 E. 4 12 × 3 6

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7 0
3 years ago
Angles U and V are supplementary angles. The ratio of their measures is 7:13 Find the measure of each angle
GREYUIT [131]
If u and v are <span>supplementary angles, then

u+v=180^{\circ}~~~~~\mathbf{(i)}


The ratio of u and v is \dfrac{7}{13}:<span>

\dfrac{u}{v}=\dfrac{7}{13}\\\\\\ u=\dfrac{7v}{13}~~~~\mathbf{(ii)}


Substitute \mathbf{(ii)} into \mathbf{(i)}:

\dfrac{7v}{13}+v=180^{\circ}\\\\\\ \left(\dfrac{7}{13}+1 \right )\cdot v=180^{\circ}\\\\\\ \left(\dfrac{7}{13}+\dfrac{13}{13} \right )\cdot v=180^{\circ}\\\\\\ \dfrac{20}{13}\cdot v=180^{\circ}\\\\\\ v=180^{\circ}\cdot \dfrac{13}{20}\\\\\\ \boxed{\begin{array}{c} v=117^{\circ} \end{array}}


From \mathbf{(i)}, we find the measure of u:

u=180^{\circ}-v\\\\ u=180^{\circ}-117^{\circ}\\\\ \boxed{\begin{array}{c} u=63^{\circ} \end{array}}

</span></span>
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3 years ago
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2 years ago
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Step-by-step explanation:

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3 years ago
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