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iragen [17]
3 years ago
7

Solve for x. please help me

Mathematics
1 answer:
Sphinxa [80]3 years ago
5 0

x= 0, -7

the reason that is true is because if you set each x equal to each other, you get x = 0 and x + 7 = 0 and if you subtract 7 on both sides you get x = -7

so x = -7, 0

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Angela work on a straight 7% commission. Her friend worked on a salary of $600 plus a 10% commission. In a particular month, the
sveticcg [70]

all you need to do is change your percentages to decimal and then multiply

7 0
2 years ago
Find AB<br> Round to the nearest tenth.
lianna [129]

Answer:4.1

Step-by-step explanation:

c=AB

C=26°

B=122°

b=8

Using sine rule

c/sinC = b/sinB

c/sin26=8/sin122

Sin26=0.4384

Sin122=0.8480

c/0.4384=8/0.8480

Cross multiply

c x 0.8480=8 x 0.4384

c x 0.8480=3.5072

Divide both sides by 0.8480

(c x 0.8480)/0.8480=3.5072/0.8480

c=4.1

7 0
3 years ago
What's the exact value for this trigonometric function sin 60 degrees
Elodia [21]
\sin60^\circ=\dfrac{\sqrt{3}}{2}
3 0
2 years ago
Leo has three times as many colored marbles as he has see-though marbles. In total, he has 60 marbles. How many see-through marb
madam [21]

Answer:

15

Step-by-step explanation:

15 +45 = 60 and 15 x 3 = 45

6 0
3 years ago
Three different design configurations are being considered for a particular component. There are two possible failure modes for
asambeis [7]

Answer:

No evidence .because the configurations factors and failure mode are independent

Step-by-step explanation:

Determine if there is sufficient evidence to conclude that configuration affects the type of failure

Number of configurations = 3

Number of failures = 4

assuming <em>Pij </em>represents proportion of items in pop i of the category j

H0 : <em>Pij = Pi * </em>Pj<em>,  </em>I = 1,2,-- I,  j = 1,2,---J

Hence the expected frequencies will be

16.10 , 43.58 , 18, 12.31

7.5,  19.37, 8 , 5.47

10.73, 29.05, 12, 8.21

x^2 = 13.25

test statistic = 14.44. Hence the significance level where Null hypothesis will be acceptable will be = 2.5%

3 0
2 years ago
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