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gayaneshka [121]
3 years ago
7

7(6+d)=49 Solve for d. A:d=7 B:d=-1 C:d=-7 D:d=1

Mathematics
1 answer:
Elan Coil [88]3 years ago
3 0

Answer: d = 1

Step-by-step explanation:

First distribute the 7 to each term of (6 + d) = 42 + 7d = 49 now subtract 42 from both sides which = 7d = 7. Divide by 7 = 7d/7 = 7/7 = d = 1

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A
kondor19780726 [428]

Answer: 18.2

Step-by-step explanation:

14^{2}+b^{2}=23^{2}\\b^{2}=23^{2}-14^{2}\\b=\sqrt{23^{2}-14^{2}} \approx \boxed{18.2}

4 0
2 years ago
Find the x- and y-intercepts of the graph of — 7x + 8y = 40. State your answers as
geniusboy [140]

Answer:

x-intercept is (40/7, 0) and y-intercept is (0, 5)

Step-by-step explanation:

x-intercept ==> y-coordinate is 0 ==> y=0

y-intercept ==> x-coordinate is 0 ==> x=0

because the function is 7x + 8y = 40

when y = 0 ==> 7x = 40 ==> x = 40/7

so the x-intercept is (40/7, 0)

when x = 0 ==> 8y = 40 ==> y = 5

so the y-intercept is (0,5)

5 0
3 years ago
Edmond is on the third day of his hike up Glacier Peak. The graph below shows his hiking time and altitude for the third day onl
Genrish500 [490]

Answer: 3,500 feet

Step-by-step explanation:

To determine the original altitude for the third day, identify the y-intercept of the graph.

Therefore, the original altitude was 3,500 feet.

4 0
3 years ago
HELP ME !! WHOEVER GETS THE RIGHT ANSWER I WILL MARK BRAINIEST!!
Olin [163]

Answer:

coordinates are {-8.5,4.5}

hope this helps

5 0
3 years ago
Read 2 more answers
For the following right triangle, find the size length X. Round your answer to the nearest hundredth
Vlad1618 [11]

Answer:

The answer would be 10.72

Step-by-step

You already have two side lengths so you use those to find the 3rd length

A^{2}+B^{2}=C^{2}

A^{2}+9^{2} =14^{2}

A+81=196

196-81=115

\sqrt{115

10.72

6 0
3 years ago
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